./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test1-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 35987657 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_BER_test1-1.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 a2f43006c9a8080eee594d7c3e874c7ea5bb3a923f26b30531e1d07ef5cff7d9 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-22 00:53:23,500 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 00:53:23,503 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 00:53:23,541 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 00:53:23,541 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 00:53:23,543 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 00:53:23,546 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 00:53:23,549 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 00:53:23,551 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 00:53:23,555 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 00:53:23,557 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 00:53:23,561 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 00:53:23,561 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 00:53:23,563 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 00:53:23,564 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 00:53:23,566 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 00:53:23,567 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 00:53:23,568 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 00:53:23,570 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 00:53:23,575 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 00:53:23,577 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 00:53:23,578 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 00:53:23,579 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 00:53:23,580 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 00:53:23,581 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 00:53:23,595 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 00:53:23,597 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 00:53:23,597 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 00:53:23,598 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 00:53:23,599 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 00:53:23,599 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 00:53:23,600 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 00:53:23,602 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 00:53:23,602 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 00:53:23,603 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 00:53:23,604 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 00:53:23,604 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 00:53:23,605 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 00:53:23,605 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 00:53:23,605 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 00:53:23,606 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 00:53:23,607 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 00:53:23,612 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-07-22 00:53:23,643 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 00:53:23,643 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 00:53:23,644 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 00:53:23,644 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 00:53:23,645 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 00:53:23,645 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 00:53:23,646 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 00:53:23,646 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 00:53:23,646 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 00:53:23,647 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 00:53:23,647 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 00:53:23,647 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-22 00:53:23,648 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 00:53:23,648 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 00:53:23,648 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 00:53:23,648 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 00:53:23,649 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 00:53:23,649 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 00:53:23,649 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-07-22 00:53:23,649 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 00:53:23,649 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 00:53:23,650 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 00:53:23,650 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 00:53:23,650 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 00:53:23,650 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 00:53:23,651 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 00:53:23,651 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 00:53:23,651 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 00:53:23,651 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 00:53:23,651 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 00:53:23,652 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 00:53:23,652 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 00:53:23,652 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 00:53:23,652 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a2f43006c9a8080eee594d7c3e874c7ea5bb3a923f26b30531e1d07ef5cff7d9 [2022-07-22 00:53:23,958 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 00:53:23,982 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 00:53:23,985 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 00:53:23,986 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 00:53:23,987 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 00:53:23,988 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test1-1.i [2022-07-22 00:53:24,041 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96802a688/07d7db70b102408f9e675edfa3e0d2d0/FLAG109624431 [2022-07-22 00:53:24,574 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 00:53:24,574 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test1-1.i [2022-07-22 00:53:24,587 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96802a688/07d7db70b102408f9e675edfa3e0d2d0/FLAG109624431 [2022-07-22 00:53:24,854 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96802a688/07d7db70b102408f9e675edfa3e0d2d0 [2022-07-22 00:53:24,856 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 00:53:24,857 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 00:53:24,860 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 00:53:24,860 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 00:53:24,863 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 00:53:24,864 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 12:53:24" (1/1) ... [2022-07-22 00:53:24,865 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3780d39b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:53:24, skipping insertion in model container [2022-07-22 00:53:24,865 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 12:53:24" (1/1) ... [2022-07-22 00:53:24,870 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 00:53:24,928 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 00:53:25,252 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_BER_test1-1.i[33021,33034] [2022-07-22 00:53:25,340 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 00:53:25,347 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 00:53:25,369 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_BER_test1-1.i[33021,33034] [2022-07-22 00:53:25,409 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 00:53:25,446 INFO L208 MainTranslator]: Completed translation [2022-07-22 00:53:25,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:53:25 WrapperNode [2022-07-22 00:53:25,446 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 00:53:25,447 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 00:53:25,447 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 00:53:25,447 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 00:53:25,453 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:53:25" (1/1) ... [2022-07-22 00:53:25,486 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:53:25" (1/1) ... [2022-07-22 00:53:25,532 INFO L137 Inliner]: procedures = 177, calls = 186, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 627 [2022-07-22 00:53:25,532 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 00:53:25,533 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 00:53:25,533 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 00:53:25,533 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 00:53:25,542 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:53:25" (1/1) ... [2022-07-22 00:53:25,543 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:53:25" (1/1) ... [2022-07-22 00:53:25,552 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:53:25" (1/1) ... [2022-07-22 00:53:25,553 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:53:25" (1/1) ... [2022-07-22 00:53:25,607 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:53:25" (1/1) ... [2022-07-22 00:53:25,614 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:53:25" (1/1) ... [2022-07-22 00:53:25,617 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:53:25" (1/1) ... [2022-07-22 00:53:25,631 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 00:53:25,631 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 00:53:25,632 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 00:53:25,632 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 00:53:25,632 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:53:25" (1/1) ... [2022-07-22 00:53:25,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 00:53:25,653 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:53:25,672 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) [2022-07-22 00:53:25,697 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 [2022-07-22 00:53:25,715 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-22 00:53:25,716 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-07-22 00:53:25,716 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-07-22 00:53:25,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-22 00:53:25,716 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-22 00:53:25,716 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-22 00:53:25,716 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-22 00:53:25,716 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 00:53:25,717 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-22 00:53:25,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-22 00:53:25,717 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-22 00:53:25,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-22 00:53:25,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 00:53:25,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 00:53:25,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 00:53:25,892 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 00:53:25,893 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 00:53:26,871 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 00:53:26,878 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 00:53:26,878 INFO L299 CfgBuilder]: Removed 31 assume(true) statements. [2022-07-22 00:53:26,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 12:53:26 BoogieIcfgContainer [2022-07-22 00:53:26,881 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 00:53:26,882 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 00:53:26,882 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 00:53:26,885 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 00:53:26,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 12:53:24" (1/3) ... [2022-07-22 00:53:26,886 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a7b26f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 12:53:26, skipping insertion in model container [2022-07-22 00:53:26,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:53:25" (2/3) ... [2022-07-22 00:53:26,886 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a7b26f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 12:53:26, skipping insertion in model container [2022-07-22 00:53:26,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 12:53:26" (3/3) ... [2022-07-22 00:53:26,888 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_BER_test1-1.i [2022-07-22 00:53:26,900 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 00:53:26,900 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-07-22 00:53:26,942 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 00:53:26,948 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@35a31d78, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@6ea7d62d [2022-07-22 00:53:26,948 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-07-22 00:53:26,952 INFO L276 IsEmpty]: Start isEmpty. Operand has 138 states, 116 states have (on average 1.6810344827586208) internal successors, (195), 132 states have internal predecessors, (195), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2022-07-22 00:53:26,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-07-22 00:53:26,957 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:53:26,957 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-07-22 00:53:26,958 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)] === [2022-07-22 00:53:26,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:53:26,963 INFO L85 PathProgramCache]: Analyzing trace with hash 1126635289, now seen corresponding path program 1 times [2022-07-22 00:53:26,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:53:26,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316782091] [2022-07-22 00:53:26,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:53:26,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:53:27,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:53:27,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:53:27,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:53:27,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316782091] [2022-07-22 00:53:27,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316782091] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:53:27,112 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 00:53:27,112 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 00:53:27,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138411027] [2022-07-22 00:53:27,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:53:27,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 00:53:27,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:53:27,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 00:53:27,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 00:53:27,157 INFO L87 Difference]: Start difference. First operand has 138 states, 116 states have (on average 1.6810344827586208) internal successors, (195), 132 states have internal predecessors, (195), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) 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) [2022-07-22 00:53:27,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:53:27,246 INFO L93 Difference]: Finished difference Result 366 states and 607 transitions. [2022-07-22 00:53:27,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 00:53:27,248 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 [2022-07-22 00:53:27,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:53:27,257 INFO L225 Difference]: With dead ends: 366 [2022-07-22 00:53:27,258 INFO L226 Difference]: Without dead ends: 226 [2022-07-22 00:53:27,261 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 [2022-07-22 00:53:27,267 INFO L413 NwaCegarLoop]: 211 mSDtfsCounter, 113 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 386 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 [2022-07-22 00:53:27,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 386 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 00:53:27,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2022-07-22 00:53:27,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 137. [2022-07-22 00:53:27,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 117 states have (on average 1.3504273504273505) internal successors, (158), 131 states have internal predecessors, (158), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2022-07-22 00:53:27,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 184 transitions. [2022-07-22 00:53:27,310 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 184 transitions. Word has length 6 [2022-07-22 00:53:27,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:53:27,310 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 184 transitions. [2022-07-22 00:53:27,311 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) [2022-07-22 00:53:27,311 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 184 transitions. [2022-07-22 00:53:27,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-22 00:53:27,313 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:53:27,314 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] [2022-07-22 00:53:27,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-22 00:53:27,314 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)] === [2022-07-22 00:53:27,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:53:27,315 INFO L85 PathProgramCache]: Analyzing trace with hash -1116651610, now seen corresponding path program 1 times [2022-07-22 00:53:27,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:53:27,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626149742] [2022-07-22 00:53:27,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:53:27,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:53:27,438 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 00:53:27,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2037834717] [2022-07-22 00:53:27,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:53:27,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:53:27,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:53:27,451 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) [2022-07-22 00:53:27,477 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-22 00:53:28,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:53:28,022 INFO L263 TraceCheckSpWp]: Trace formula consists of 1517 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-22 00:53:28,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:53:28,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:53:28,058 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 00:53:28,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:53:28,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626149742] [2022-07-22 00:53:28,059 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 00:53:28,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2037834717] [2022-07-22 00:53:28,059 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2037834717] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:53:28,059 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 00:53:28,059 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 00:53:28,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760473456] [2022-07-22 00:53:28,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:53:28,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 00:53:28,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:53:28,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 00:53:28,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 00:53:28,062 INFO L87 Difference]: Start difference. First operand 137 states and 184 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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) [2022-07-22 00:53:28,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:53:28,133 INFO L93 Difference]: Finished difference Result 289 states and 393 transitions. [2022-07-22 00:53:28,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 00:53:28,134 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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 56 [2022-07-22 00:53:28,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:53:28,136 INFO L225 Difference]: With dead ends: 289 [2022-07-22 00:53:28,136 INFO L226 Difference]: Without dead ends: 158 [2022-07-22 00:53:28,137 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 00:53:28,138 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 9 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 00:53:28,139 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 305 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 00:53:28,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2022-07-22 00:53:28,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 157. [2022-07-22 00:53:28,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 137 states have (on average 1.2992700729927007) internal successors, (178), 151 states have internal predecessors, (178), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2022-07-22 00:53:28,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 204 transitions. [2022-07-22 00:53:28,152 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 204 transitions. Word has length 56 [2022-07-22 00:53:28,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:53:28,153 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 204 transitions. [2022-07-22 00:53:28,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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) [2022-07-22 00:53:28,153 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 204 transitions. [2022-07-22 00:53:28,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-22 00:53:28,155 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:53:28,155 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] [2022-07-22 00:53:28,189 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-22 00:53:28,376 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 [2022-07-22 00:53:28,377 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)] === [2022-07-22 00:53:28,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:53:28,378 INFO L85 PathProgramCache]: Analyzing trace with hash -1391411224, now seen corresponding path program 1 times [2022-07-22 00:53:28,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:53:28,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007332896] [2022-07-22 00:53:28,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:53:28,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:53:28,486 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 00:53:28,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1564568141] [2022-07-22 00:53:28,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:53:28,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:53:28,487 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:53:28,489 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) [2022-07-22 00:53:28,490 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-22 00:53:29,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:53:29,075 INFO L263 TraceCheckSpWp]: Trace formula consists of 1519 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-22 00:53:29,078 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:53:29,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:53:29,101 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 00:53:29,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:53:29,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007332896] [2022-07-22 00:53:29,102 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 00:53:29,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1564568141] [2022-07-22 00:53:29,102 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1564568141] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:53:29,102 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 00:53:29,102 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 00:53:29,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072347429] [2022-07-22 00:53:29,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:53:29,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 00:53:29,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:53:29,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 00:53:29,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 00:53:29,105 INFO L87 Difference]: Start difference. First operand 157 states and 204 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 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) [2022-07-22 00:53:29,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:53:29,172 INFO L93 Difference]: Finished difference Result 299 states and 393 transitions. [2022-07-22 00:53:29,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-22 00:53:29,173 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 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 56 [2022-07-22 00:53:29,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:53:29,174 INFO L225 Difference]: With dead ends: 299 [2022-07-22 00:53:29,174 INFO L226 Difference]: Without dead ends: 148 [2022-07-22 00:53:29,175 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-22 00:53:29,176 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 135 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 339 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 [2022-07-22 00:53:29,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 339 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 00:53:29,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2022-07-22 00:53:29,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 143. [2022-07-22 00:53:29,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 123 states have (on average 1.2764227642276422) internal successors, (157), 137 states have internal predecessors, (157), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2022-07-22 00:53:29,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 183 transitions. [2022-07-22 00:53:29,187 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 183 transitions. Word has length 56 [2022-07-22 00:53:29,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:53:29,187 INFO L495 AbstractCegarLoop]: Abstraction has 143 states and 183 transitions. [2022-07-22 00:53:29,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 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) [2022-07-22 00:53:29,187 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 183 transitions. [2022-07-22 00:53:29,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-22 00:53:29,189 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:53:29,189 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] [2022-07-22 00:53:29,220 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-22 00:53:29,411 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 [2022-07-22 00:53:29,412 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)] === [2022-07-22 00:53:29,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:53:29,412 INFO L85 PathProgramCache]: Analyzing trace with hash 632524954, now seen corresponding path program 1 times [2022-07-22 00:53:29,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:53:29,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346914263] [2022-07-22 00:53:29,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:53:29,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:53:29,540 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 00:53:29,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1673750194] [2022-07-22 00:53:29,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:53:29,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:53:29,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:53:29,542 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) [2022-07-22 00:53:29,543 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-22 00:53:30,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:53:30,216 INFO L263 TraceCheckSpWp]: Trace formula consists of 1505 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-22 00:53:30,219 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:53:30,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:53:30,293 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 00:53:30,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:53:30,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346914263] [2022-07-22 00:53:30,294 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 00:53:30,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1673750194] [2022-07-22 00:53:30,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1673750194] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:53:30,294 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 00:53:30,294 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 00:53:30,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145103705] [2022-07-22 00:53:30,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:53:30,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 00:53:30,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:53:30,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 00:53:30,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 00:53:30,296 INFO L87 Difference]: Start difference. First operand 143 states and 183 transitions. Second operand has 4 states, 3 states have (on average 18.666666666666668) internal successors, (56), 4 states have internal predecessors, (56), 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) [2022-07-22 00:53:30,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:53:30,342 INFO L93 Difference]: Finished difference Result 238 states and 298 transitions. [2022-07-22 00:53:30,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 00:53:30,343 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 18.666666666666668) internal successors, (56), 4 states have internal predecessors, (56), 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 56 [2022-07-22 00:53:30,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:53:30,349 INFO L225 Difference]: With dead ends: 238 [2022-07-22 00:53:30,349 INFO L226 Difference]: Without dead ends: 237 [2022-07-22 00:53:30,349 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-22 00:53:30,351 INFO L413 NwaCegarLoop]: 168 mSDtfsCounter, 55 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 498 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 [2022-07-22 00:53:30,352 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 498 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 00:53:30,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2022-07-22 00:53:30,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 235. [2022-07-22 00:53:30,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 212 states have (on average 1.240566037735849) internal successors, (263), 226 states have internal predecessors, (263), 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) [2022-07-22 00:53:30,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 295 transitions. [2022-07-22 00:53:30,380 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 295 transitions. Word has length 56 [2022-07-22 00:53:30,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:53:30,384 INFO L495 AbstractCegarLoop]: Abstraction has 235 states and 295 transitions. [2022-07-22 00:53:30,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 18.666666666666668) internal successors, (56), 4 states have internal predecessors, (56), 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) [2022-07-22 00:53:30,384 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 295 transitions. [2022-07-22 00:53:30,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-07-22 00:53:30,386 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:53:30,386 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] [2022-07-22 00:53:30,414 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-22 00:53:30,586 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 [2022-07-22 00:53:30,587 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 00:53:30,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:53:30,587 INFO L85 PathProgramCache]: Analyzing trace with hash -1866562491, now seen corresponding path program 1 times [2022-07-22 00:53:30,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:53:30,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645309479] [2022-07-22 00:53:30,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:53:30,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:53:30,699 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 00:53:30,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [24195922] [2022-07-22 00:53:30,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:53:30,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:53:30,700 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:53:30,701 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) [2022-07-22 00:53:30,723 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-22 00:53:31,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:53:31,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 1506 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-22 00:53:31,395 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:53:31,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:53:31,470 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 00:53:31,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:53:31,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645309479] [2022-07-22 00:53:31,470 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 00:53:31,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [24195922] [2022-07-22 00:53:31,471 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [24195922] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:53:31,471 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 00:53:31,471 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 00:53:31,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871946390] [2022-07-22 00:53:31,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:53:31,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 00:53:31,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:53:31,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 00:53:31,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 00:53:31,473 INFO L87 Difference]: Start difference. First operand 235 states and 295 transitions. Second operand has 4 states, 3 states have (on average 19.0) internal successors, (57), 4 states have internal predecessors, (57), 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) [2022-07-22 00:53:31,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:53:31,501 INFO L93 Difference]: Finished difference Result 235 states and 295 transitions. [2022-07-22 00:53:31,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-22 00:53:31,502 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 19.0) internal successors, (57), 4 states have internal predecessors, (57), 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 57 [2022-07-22 00:53:31,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:53:31,504 INFO L225 Difference]: With dead ends: 235 [2022-07-22 00:53:31,504 INFO L226 Difference]: Without dead ends: 234 [2022-07-22 00:53:31,504 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-22 00:53:31,505 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 85 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 344 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 [2022-07-22 00:53:31,506 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 344 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 00:53:31,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2022-07-22 00:53:31,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2022-07-22 00:53:31,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 212 states have (on average 1.2358490566037736) internal successors, (262), 225 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) [2022-07-22 00:53:31,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 294 transitions. [2022-07-22 00:53:31,518 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 294 transitions. Word has length 57 [2022-07-22 00:53:31,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:53:31,518 INFO L495 AbstractCegarLoop]: Abstraction has 234 states and 294 transitions. [2022-07-22 00:53:31,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 19.0) internal successors, (57), 4 states have internal predecessors, (57), 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) [2022-07-22 00:53:31,518 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 294 transitions. [2022-07-22 00:53:31,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-07-22 00:53:31,523 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:53:31,523 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] [2022-07-22 00:53:31,552 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-22 00:53:31,723 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 [2022-07-22 00:53:31,724 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 00:53:31,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:53:31,725 INFO L85 PathProgramCache]: Analyzing trace with hash 1237589276, now seen corresponding path program 1 times [2022-07-22 00:53:31,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:53:31,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837197079] [2022-07-22 00:53:31,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:53:31,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:53:31,853 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 00:53:31,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [221755635] [2022-07-22 00:53:31,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:53:31,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:53:31,857 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:53:31,859 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) [2022-07-22 00:53:31,884 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-22 00:53:32,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:53:32,683 INFO L263 TraceCheckSpWp]: Trace formula consists of 1529 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 00:53:32,685 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:53:32,772 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:53:32,772 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:53:32,866 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:53:32,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:53:32,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837197079] [2022-07-22 00:53:32,867 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 00:53:32,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [221755635] [2022-07-22 00:53:32,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [221755635] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 00:53:32,867 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-22 00:53:32,867 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-07-22 00:53:32,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220689588] [2022-07-22 00:53:32,868 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-22 00:53:32,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-22 00:53:32,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:53:32,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-22 00:53:32,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-07-22 00:53:32,871 INFO L87 Difference]: Start difference. First operand 234 states and 294 transitions. Second operand has 8 states, 8 states have (on average 14.75) internal successors, (118), 8 states have internal predecessors, (118), 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) [2022-07-22 00:53:32,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:53:32,959 INFO L93 Difference]: Finished difference Result 367 states and 469 transitions. [2022-07-22 00:53:32,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-22 00:53:32,959 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.75) internal successors, (118), 8 states have internal predecessors, (118), 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 61 [2022-07-22 00:53:32,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:53:32,963 INFO L225 Difference]: With dead ends: 367 [2022-07-22 00:53:32,963 INFO L226 Difference]: Without dead ends: 333 [2022-07-22 00:53:32,966 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2022-07-22 00:53:32,968 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 522 mSDsluCounter, 515 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 531 SdHoareTripleChecker+Valid, 714 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 00:53:32,968 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [531 Valid, 714 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 00:53:32,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2022-07-22 00:53:32,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 333. [2022-07-22 00:53:32,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 308 states have (on average 1.2207792207792207) internal successors, (376), 321 states have internal predecessors, (376), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 10 states have call predecessors, (19), 19 states have call successors, (19) [2022-07-22 00:53:32,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 414 transitions. [2022-07-22 00:53:32,987 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 414 transitions. Word has length 61 [2022-07-22 00:53:32,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:53:32,989 INFO L495 AbstractCegarLoop]: Abstraction has 333 states and 414 transitions. [2022-07-22 00:53:32,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.75) internal successors, (118), 8 states have internal predecessors, (118), 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) [2022-07-22 00:53:32,989 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 414 transitions. [2022-07-22 00:53:32,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-07-22 00:53:32,994 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:53:32,995 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] [2022-07-22 00:53:33,025 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-22 00:53:33,211 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 [2022-07-22 00:53:33,212 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 00:53:33,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:53:33,212 INFO L85 PathProgramCache]: Analyzing trace with hash 1237285228, now seen corresponding path program 1 times [2022-07-22 00:53:33,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:53:33,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301723885] [2022-07-22 00:53:33,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:53:33,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:53:33,318 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 00:53:33,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [246280878] [2022-07-22 00:53:33,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:53:33,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:53:33,324 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:53:33,325 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) [2022-07-22 00:53:33,327 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-22 00:53:34,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:53:34,083 INFO L263 TraceCheckSpWp]: Trace formula consists of 1535 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-22 00:53:34,085 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:53:34,244 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:53:34,245 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 00:53:34,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:53:34,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301723885] [2022-07-22 00:53:34,245 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 00:53:34,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [246280878] [2022-07-22 00:53:34,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [246280878] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:53:34,246 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 00:53:34,246 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 00:53:34,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645651981] [2022-07-22 00:53:34,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:53:34,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 00:53:34,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:53:34,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 00:53:34,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 00:53:34,249 INFO L87 Difference]: Start difference. First operand 333 states and 414 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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) [2022-07-22 00:53:34,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:53:34,296 INFO L93 Difference]: Finished difference Result 606 states and 760 transitions. [2022-07-22 00:53:34,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 00:53:34,299 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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 61 [2022-07-22 00:53:34,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:53:34,301 INFO L225 Difference]: With dead ends: 606 [2022-07-22 00:53:34,301 INFO L226 Difference]: Without dead ends: 331 [2022-07-22 00:53:34,303 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 00:53:34,303 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 15 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 326 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 [2022-07-22 00:53:34,304 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 326 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 00:53:34,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2022-07-22 00:53:34,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 331. [2022-07-22 00:53:34,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 306 states have (on average 1.2189542483660132) internal successors, (373), 319 states have internal predecessors, (373), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 10 states have call predecessors, (19), 19 states have call successors, (19) [2022-07-22 00:53:34,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 411 transitions. [2022-07-22 00:53:34,316 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 411 transitions. Word has length 61 [2022-07-22 00:53:34,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:53:34,317 INFO L495 AbstractCegarLoop]: Abstraction has 331 states and 411 transitions. [2022-07-22 00:53:34,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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) [2022-07-22 00:53:34,318 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 411 transitions. [2022-07-22 00:53:34,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-07-22 00:53:34,318 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:53:34,319 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] [2022-07-22 00:53:34,340 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-22 00:53:34,523 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 [2022-07-22 00:53:34,524 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 00:53:34,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:53:34,524 INFO L85 PathProgramCache]: Analyzing trace with hash -1438130325, now seen corresponding path program 1 times [2022-07-22 00:53:34,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:53:34,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586073822] [2022-07-22 00:53:34,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:53:34,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:53:34,566 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 00:53:34,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1867121334] [2022-07-22 00:53:34,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:53:34,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:53:34,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:53:34,568 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) [2022-07-22 00:53:34,593 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-22 00:53:54,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:53:54,244 INFO L263 TraceCheckSpWp]: Trace formula consists of 672 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-22 00:53:54,246 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:53:54,264 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:53:54,264 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 00:53:54,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:53:54,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586073822] [2022-07-22 00:53:54,265 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 00:53:54,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1867121334] [2022-07-22 00:53:54,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1867121334] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:53:54,265 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 00:53:54,265 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 00:53:54,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675720716] [2022-07-22 00:53:54,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:53:54,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 00:53:54,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:53:54,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 00:53:54,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 00:53:54,267 INFO L87 Difference]: Start difference. First operand 331 states and 411 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-22 00:53:54,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:53:54,319 INFO L93 Difference]: Finished difference Result 613 states and 776 transitions. [2022-07-22 00:53:54,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-22 00:53:54,319 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 76 [2022-07-22 00:53:54,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:53:54,321 INFO L225 Difference]: With dead ends: 613 [2022-07-22 00:53:54,321 INFO L226 Difference]: Without dead ends: 334 [2022-07-22 00:53:54,322 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-22 00:53:54,323 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 2 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 00:53:54,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 503 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 00:53:54,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2022-07-22 00:53:54,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 334. [2022-07-22 00:53:54,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 308 states have (on average 1.2207792207792207) internal successors, (376), 322 states have internal predecessors, (376), 19 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (22), 10 states have call predecessors, (22), 19 states have call successors, (22) [2022-07-22 00:53:54,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 417 transitions. [2022-07-22 00:53:54,338 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 417 transitions. Word has length 76 [2022-07-22 00:53:54,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:53:54,339 INFO L495 AbstractCegarLoop]: Abstraction has 334 states and 417 transitions. [2022-07-22 00:53:54,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-22 00:53:54,339 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 417 transitions. [2022-07-22 00:53:54,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-07-22 00:53:54,340 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:53:54,340 INFO L195 NwaCegarLoop]: trace histogram [2, 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] [2022-07-22 00:53:54,388 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-22 00:53:54,541 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 [2022-07-22 00:53:54,541 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)] === [2022-07-22 00:53:54,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:53:54,542 INFO L85 PathProgramCache]: Analyzing trace with hash 766935497, now seen corresponding path program 1 times [2022-07-22 00:53:54,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:53:54,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768917362] [2022-07-22 00:53:54,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:53:54,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:53:54,586 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 00:53:54,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [770129728] [2022-07-22 00:53:54,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:53:54,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:53:54,587 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:53:54,589 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) [2022-07-22 00:53:54,594 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-22 00:53:55,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:53:55,704 INFO L263 TraceCheckSpWp]: Trace formula consists of 702 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-22 00:53:55,706 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:53:55,721 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-22 00:53:55,721 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:53:55,791 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-22 00:53:55,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:53:55,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768917362] [2022-07-22 00:53:55,792 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 00:53:55,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [770129728] [2022-07-22 00:53:55,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [770129728] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 00:53:55,793 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-22 00:53:55,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-07-22 00:53:55,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157299925] [2022-07-22 00:53:55,793 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-22 00:53:55,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-22 00:53:55,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:53:55,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-22 00:53:55,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-22 00:53:55,795 INFO L87 Difference]: Start difference. First operand 334 states and 417 transitions. Second operand has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-22 00:53:55,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:53:55,894 INFO L93 Difference]: Finished difference Result 627 states and 803 transitions. [2022-07-22 00:53:55,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-22 00:53:55,894 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 78 [2022-07-22 00:53:55,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:53:55,896 INFO L225 Difference]: With dead ends: 627 [2022-07-22 00:53:55,896 INFO L226 Difference]: Without dead ends: 345 [2022-07-22 00:53:55,897 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156 [2022-07-22 00:53:55,898 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 16 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 00:53:55,898 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 508 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 00:53:55,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2022-07-22 00:53:55,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 343. [2022-07-22 00:53:55,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 316 states have (on average 1.2341772151898733) internal successors, (390), 330 states have internal predecessors, (390), 19 states have call successors, (19), 3 states have call predecessors, (19), 4 states have return successors, (22), 10 states have call predecessors, (22), 19 states have call successors, (22) [2022-07-22 00:53:55,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 431 transitions. [2022-07-22 00:53:55,911 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 431 transitions. Word has length 78 [2022-07-22 00:53:55,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:53:55,911 INFO L495 AbstractCegarLoop]: Abstraction has 343 states and 431 transitions. [2022-07-22 00:53:55,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-22 00:53:55,911 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 431 transitions. [2022-07-22 00:53:55,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-07-22 00:53:55,912 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:53:55,912 INFO L195 NwaCegarLoop]: trace histogram [6, 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] [2022-07-22 00:53:55,929 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-07-22 00:53:56,123 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 [2022-07-22 00:53:56,124 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)] === [2022-07-22 00:53:56,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:53:56,124 INFO L85 PathProgramCache]: Analyzing trace with hash 432269099, now seen corresponding path program 2 times [2022-07-22 00:53:56,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:53:56,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966086975] [2022-07-22 00:53:56,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:53:56,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:53:56,189 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 00:53:56,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2131443233] [2022-07-22 00:53:56,190 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-22 00:53:56,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:53:56,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:53:56,192 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) [2022-07-22 00:53:56,220 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-07-22 00:53:57,178 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-22 00:53:57,179 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 00:53:57,184 INFO L263 TraceCheckSpWp]: Trace formula consists of 762 conjuncts, 16 conjunts are in the unsatisfiable core [2022-07-22 00:53:57,186 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:53:57,234 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 22 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-22 00:53:57,234 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:53:57,381 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 4 proven. 27 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-07-22 00:53:57,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:53:57,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966086975] [2022-07-22 00:53:57,381 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 00:53:57,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2131443233] [2022-07-22 00:53:57,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2131443233] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 00:53:57,381 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-22 00:53:57,381 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 15 [2022-07-22 00:53:57,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342348870] [2022-07-22 00:53:57,382 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-22 00:53:57,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-07-22 00:53:57,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:53:57,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-07-22 00:53:57,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2022-07-22 00:53:57,383 INFO L87 Difference]: Start difference. First operand 343 states and 431 transitions. Second operand has 15 states, 15 states have (on average 6.0) internal successors, (90), 15 states have internal predecessors, (90), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-22 00:53:57,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:53:57,948 INFO L93 Difference]: Finished difference Result 688 states and 894 transitions. [2022-07-22 00:53:57,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-22 00:53:57,948 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 6.0) internal successors, (90), 15 states have internal predecessors, (90), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 82 [2022-07-22 00:53:57,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:53:57,952 INFO L225 Difference]: With dead ends: 688 [2022-07-22 00:53:57,952 INFO L226 Difference]: Without dead ends: 351 [2022-07-22 00:53:57,953 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=259, Invalid=553, Unknown=0, NotChecked=0, Total=812 [2022-07-22 00:53:57,954 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 179 mSDsluCounter, 1156 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 1321 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-22 00:53:57,954 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 1321 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-22 00:53:57,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2022-07-22 00:53:57,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 343. [2022-07-22 00:53:57,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 316 states have (on average 1.2341772151898733) internal successors, (390), 330 states have internal predecessors, (390), 19 states have call successors, (19), 3 states have call predecessors, (19), 4 states have return successors, (22), 10 states have call predecessors, (22), 19 states have call successors, (22) [2022-07-22 00:53:57,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 431 transitions. [2022-07-22 00:53:57,968 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 431 transitions. Word has length 82 [2022-07-22 00:53:57,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:53:57,969 INFO L495 AbstractCegarLoop]: Abstraction has 343 states and 431 transitions. [2022-07-22 00:53:57,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 6.0) internal successors, (90), 15 states have internal predecessors, (90), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-22 00:53:57,969 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 431 transitions. [2022-07-22 00:53:57,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-07-22 00:53:57,970 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:53:57,970 INFO L195 NwaCegarLoop]: trace histogram [15, 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] [2022-07-22 00:53:58,002 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-07-22 00:53:58,191 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 [2022-07-22 00:53:58,191 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)] === [2022-07-22 00:53:58,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:53:58,192 INFO L85 PathProgramCache]: Analyzing trace with hash -1367817495, now seen corresponding path program 3 times [2022-07-22 00:53:58,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:53:58,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529204312] [2022-07-22 00:53:58,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:53:58,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:53:58,251 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 00:53:58,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1407543483] [2022-07-22 00:53:58,252 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-22 00:53:58,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:53:58,252 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:53:58,253 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) [2022-07-22 00:53:58,255 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-07-22 00:54:00,561 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-07-22 00:54:00,561 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 00:54:00,567 INFO L263 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-22 00:54:00,571 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:54:00,666 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2022-07-22 00:54:00,666 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 00:54:00,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:54:00,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529204312] [2022-07-22 00:54:00,667 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 00:54:00,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1407543483] [2022-07-22 00:54:00,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1407543483] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:54:00,667 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 00:54:00,668 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-22 00:54:00,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691559474] [2022-07-22 00:54:00,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:54:00,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 00:54:00,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:54:00,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 00:54:00,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-22 00:54:00,669 INFO L87 Difference]: Start difference. First operand 343 states and 431 transitions. Second operand has 6 states, 5 states have (on average 14.0) internal successors, (70), 6 states have internal predecessors, (70), 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) [2022-07-22 00:54:00,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:54:00,752 INFO L93 Difference]: Finished difference Result 343 states and 431 transitions. [2022-07-22 00:54:00,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-22 00:54:00,753 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.0) internal successors, (70), 6 states have internal predecessors, (70), 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 91 [2022-07-22 00:54:00,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:54:00,755 INFO L225 Difference]: With dead ends: 343 [2022-07-22 00:54:00,755 INFO L226 Difference]: Without dead ends: 342 [2022-07-22 00:54:00,755 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-07-22 00:54:00,756 INFO L413 NwaCegarLoop]: 255 mSDtfsCounter, 172 mSDsluCounter, 537 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 792 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 00:54:00,756 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 792 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 00:54:00,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2022-07-22 00:54:00,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 342. [2022-07-22 00:54:00,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 316 states have (on average 1.2278481012658229) internal successors, (388), 329 states have internal predecessors, (388), 19 states have call successors, (19), 3 states have call predecessors, (19), 4 states have return successors, (22), 10 states have call predecessors, (22), 19 states have call successors, (22) [2022-07-22 00:54:00,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 429 transitions. [2022-07-22 00:54:00,769 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 429 transitions. Word has length 91 [2022-07-22 00:54:00,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:54:00,770 INFO L495 AbstractCegarLoop]: Abstraction has 342 states and 429 transitions. [2022-07-22 00:54:00,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.0) internal successors, (70), 6 states have internal predecessors, (70), 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) [2022-07-22 00:54:00,770 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 429 transitions. [2022-07-22 00:54:00,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-07-22 00:54:00,774 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:54:00,774 INFO L195 NwaCegarLoop]: trace histogram [15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:54:00,791 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-07-22 00:54:00,991 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 [2022-07-22 00:54:00,992 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 00:54:00,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:54:00,992 INFO L85 PathProgramCache]: Analyzing trace with hash -1165389731, now seen corresponding path program 1 times [2022-07-22 00:54:00,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:54:00,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741830599] [2022-07-22 00:54:00,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:54:00,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:54:01,169 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 00:54:01,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [321440380] [2022-07-22 00:54:01,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:54:01,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:54:01,170 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:54:01,176 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) [2022-07-22 00:54:01,183 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-07-22 00:54:02,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:54:02,591 INFO L263 TraceCheckSpWp]: Trace formula consists of 3825 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-22 00:54:02,595 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:54:02,835 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 0 proven. 159 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2022-07-22 00:54:02,835 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:54:03,086 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 0 proven. 159 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2022-07-22 00:54:03,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:54:03,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741830599] [2022-07-22 00:54:03,086 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 00:54:03,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [321440380] [2022-07-22 00:54:03,087 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [321440380] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 00:54:03,087 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-22 00:54:03,087 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2022-07-22 00:54:03,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282680560] [2022-07-22 00:54:03,087 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-22 00:54:03,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-22 00:54:03,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:54:03,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-22 00:54:03,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2022-07-22 00:54:03,089 INFO L87 Difference]: Start difference. First operand 342 states and 429 transitions. Second operand has 14 states, 13 states have (on average 26.53846153846154) internal successors, (345), 14 states have internal predecessors, (345), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-22 00:54:03,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:54:03,258 INFO L93 Difference]: Finished difference Result 465 states and 594 transitions. [2022-07-22 00:54:03,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-22 00:54:03,259 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 26.53846153846154) internal successors, (345), 14 states have internal predecessors, (345), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 196 [2022-07-22 00:54:03,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:54:03,261 INFO L225 Difference]: With dead ends: 465 [2022-07-22 00:54:03,261 INFO L226 Difference]: Without dead ends: 464 [2022-07-22 00:54:03,262 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 394 GetRequests, 378 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=105, Invalid=201, Unknown=0, NotChecked=0, Total=306 [2022-07-22 00:54:03,262 INFO L413 NwaCegarLoop]: 177 mSDtfsCounter, 395 mSDsluCounter, 1170 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 423 SdHoareTripleChecker+Valid, 1347 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 00:54:03,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [423 Valid, 1347 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 00:54:03,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2022-07-22 00:54:03,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 341. [2022-07-22 00:54:03,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 316 states have (on average 1.2246835443037976) internal successors, (387), 328 states have internal predecessors, (387), 19 states have call successors, (19), 3 states have call predecessors, (19), 4 states have return successors, (22), 10 states have call predecessors, (22), 19 states have call successors, (22) [2022-07-22 00:54:03,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 428 transitions. [2022-07-22 00:54:03,278 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 428 transitions. Word has length 196 [2022-07-22 00:54:03,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:54:03,278 INFO L495 AbstractCegarLoop]: Abstraction has 341 states and 428 transitions. [2022-07-22 00:54:03,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 26.53846153846154) internal successors, (345), 14 states have internal predecessors, (345), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-22 00:54:03,279 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 428 transitions. [2022-07-22 00:54:03,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2022-07-22 00:54:03,281 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:54:03,281 INFO L195 NwaCegarLoop]: trace histogram [15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:54:03,317 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-07-22 00:54:03,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-07-22 00:54:03,496 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 00:54:03,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:54:03,496 INFO L85 PathProgramCache]: Analyzing trace with hash -493453511, now seen corresponding path program 1 times [2022-07-22 00:54:03,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:54:03,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504221783] [2022-07-22 00:54:03,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:54:03,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:54:03,743 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 00:54:03,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1951225018] [2022-07-22 00:54:03,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:54:03,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:54:03,743 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:54:03,744 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 00:54:03,745 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-07-22 00:54:05,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:54:05,319 INFO L263 TraceCheckSpWp]: Trace formula consists of 3849 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-22 00:54:05,324 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:54:05,543 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 0 proven. 164 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2022-07-22 00:54:05,544 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:54:05,825 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 0 proven. 164 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2022-07-22 00:54:05,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:54:05,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504221783] [2022-07-22 00:54:05,826 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 00:54:05,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1951225018] [2022-07-22 00:54:05,826 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1951225018] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 00:54:05,826 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-22 00:54:05,826 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2022-07-22 00:54:05,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207561219] [2022-07-22 00:54:05,826 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-22 00:54:05,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-07-22 00:54:05,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:54:05,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-07-22 00:54:05,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2022-07-22 00:54:05,828 INFO L87 Difference]: Start difference. First operand 341 states and 428 transitions. Second operand has 16 states, 16 states have (on average 22.0) internal successors, (352), 16 states have internal predecessors, (352), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-22 00:54:06,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:54:06,019 INFO L93 Difference]: Finished difference Result 750 states and 940 transitions. [2022-07-22 00:54:06,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 00:54:06,020 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 22.0) internal successors, (352), 16 states have internal predecessors, (352), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 201 [2022-07-22 00:54:06,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:54:06,025 INFO L225 Difference]: With dead ends: 750 [2022-07-22 00:54:06,025 INFO L226 Difference]: Without dead ends: 717 [2022-07-22 00:54:06,026 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 406 GetRequests, 386 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=151, Invalid=311, Unknown=0, NotChecked=0, Total=462 [2022-07-22 00:54:06,027 INFO L413 NwaCegarLoop]: 177 mSDtfsCounter, 805 mSDsluCounter, 1110 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 824 SdHoareTripleChecker+Valid, 1287 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 00:54:06,027 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [824 Valid, 1287 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 00:54:06,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2022-07-22 00:54:06,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 717. [2022-07-22 00:54:06,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 717 states, 680 states have (on average 1.1985294117647058) internal successors, (815), 692 states have internal predecessors, (815), 31 states have call successors, (31), 3 states have call predecessors, (31), 4 states have return successors, (38), 22 states have call predecessors, (38), 31 states have call successors, (38) [2022-07-22 00:54:06,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 717 states to 717 states and 884 transitions. [2022-07-22 00:54:06,059 INFO L78 Accepts]: Start accepts. Automaton has 717 states and 884 transitions. Word has length 201 [2022-07-22 00:54:06,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:54:06,059 INFO L495 AbstractCegarLoop]: Abstraction has 717 states and 884 transitions. [2022-07-22 00:54:06,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 22.0) internal successors, (352), 16 states have internal predecessors, (352), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-22 00:54:06,060 INFO L276 IsEmpty]: Start isEmpty. Operand 717 states and 884 transitions. [2022-07-22 00:54:06,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 422 [2022-07-22 00:54:06,066 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:54:06,066 INFO L195 NwaCegarLoop]: trace histogram [15, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:54:06,106 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-07-22 00:54:06,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-07-22 00:54:06,291 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 00:54:06,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:54:06,291 INFO L85 PathProgramCache]: Analyzing trace with hash -339908487, now seen corresponding path program 2 times [2022-07-22 00:54:06,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:54:06,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93317025] [2022-07-22 00:54:06,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:54:06,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:54:06,691 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 00:54:06,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1358608857] [2022-07-22 00:54:06,692 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-22 00:54:06,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:54:06,692 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:54:06,696 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 00:54:06,704 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-07-22 00:54:08,482 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-22 00:54:08,482 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 00:54:08,488 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-22 00:54:08,493 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:54:08,990 INFO L134 CoverageAnalysis]: Checked inductivity of 1289 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1289 trivial. 0 not checked. [2022-07-22 00:54:08,990 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 00:54:08,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:54:08,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93317025] [2022-07-22 00:54:08,990 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 00:54:08,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1358608857] [2022-07-22 00:54:08,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1358608857] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:54:08,990 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 00:54:08,991 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 00:54:08,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806900933] [2022-07-22 00:54:08,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:54:08,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 00:54:08,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:54:08,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 00:54:08,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 00:54:08,994 INFO L87 Difference]: Start difference. First operand 717 states and 884 transitions. Second operand has 4 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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) [2022-07-22 00:54:09,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:54:09,048 INFO L93 Difference]: Finished difference Result 743 states and 930 transitions. [2022-07-22 00:54:09,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 00:54:09,048 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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 421 [2022-07-22 00:54:09,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:54:09,054 INFO L225 Difference]: With dead ends: 743 [2022-07-22 00:54:09,054 INFO L226 Difference]: Without dead ends: 742 [2022-07-22 00:54:09,054 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 421 GetRequests, 418 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-22 00:54:09,055 INFO L413 NwaCegarLoop]: 163 mSDtfsCounter, 65 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 00:54:09,055 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 364 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 00:54:09,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 742 states. [2022-07-22 00:54:09,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 742 to 719. [2022-07-22 00:54:09,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 719 states, 682 states have (on average 1.1979472140762464) internal successors, (817), 694 states have internal predecessors, (817), 31 states have call successors, (31), 3 states have call predecessors, (31), 4 states have return successors, (38), 22 states have call predecessors, (38), 31 states have call successors, (38) [2022-07-22 00:54:09,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 719 states to 719 states and 886 transitions. [2022-07-22 00:54:09,082 INFO L78 Accepts]: Start accepts. Automaton has 719 states and 886 transitions. Word has length 421 [2022-07-22 00:54:09,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:54:09,083 INFO L495 AbstractCegarLoop]: Abstraction has 719 states and 886 transitions. [2022-07-22 00:54:09,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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) [2022-07-22 00:54:09,083 INFO L276 IsEmpty]: Start isEmpty. Operand 719 states and 886 transitions. [2022-07-22 00:54:09,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 423 [2022-07-22 00:54:09,090 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:54:09,090 INFO L195 NwaCegarLoop]: trace histogram [15, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:54:09,124 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-07-22 00:54:09,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-07-22 00:54:09,315 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 00:54:09,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:54:09,316 INFO L85 PathProgramCache]: Analyzing trace with hash -1947228074, now seen corresponding path program 1 times [2022-07-22 00:54:09,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:54:09,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816536157] [2022-07-22 00:54:09,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:54:09,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:54:10,201 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 00:54:10,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [301696532] [2022-07-22 00:54:10,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:54:10,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:54:10,202 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:54:10,203 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 00:54:10,204 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-07-22 00:54:13,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:54:13,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 9766 conjuncts, 16 conjunts are in the unsatisfiable core [2022-07-22 00:54:13,729 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:54:14,230 INFO L134 CoverageAnalysis]: Checked inductivity of 1289 backedges. 0 proven. 1150 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2022-07-22 00:54:14,230 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:54:14,734 INFO L134 CoverageAnalysis]: Checked inductivity of 1289 backedges. 0 proven. 1150 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2022-07-22 00:54:14,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:54:14,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816536157] [2022-07-22 00:54:14,735 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 00:54:14,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [301696532] [2022-07-22 00:54:14,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [301696532] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 00:54:14,735 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-22 00:54:14,735 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 21 [2022-07-22 00:54:14,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17989862] [2022-07-22 00:54:14,735 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-22 00:54:14,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-07-22 00:54:14,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:54:14,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-07-22 00:54:14,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=300, Unknown=0, NotChecked=0, Total=420 [2022-07-22 00:54:14,737 INFO L87 Difference]: Start difference. First operand 719 states and 886 transitions. Second operand has 21 states, 21 states have (on average 24.80952380952381) internal successors, (521), 21 states have internal predecessors, (521), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-22 00:54:15,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:54:15,034 INFO L93 Difference]: Finished difference Result 1036 states and 1285 transitions. [2022-07-22 00:54:15,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-07-22 00:54:15,035 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 24.80952380952381) internal successors, (521), 21 states have internal predecessors, (521), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 422 [2022-07-22 00:54:15,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:54:15,040 INFO L225 Difference]: With dead ends: 1036 [2022-07-22 00:54:15,040 INFO L226 Difference]: Without dead ends: 1001 [2022-07-22 00:54:15,041 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 851 GetRequests, 822 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=273, Invalid=597, Unknown=0, NotChecked=0, Total=870 [2022-07-22 00:54:15,042 INFO L413 NwaCegarLoop]: 244 mSDtfsCounter, 1495 mSDsluCounter, 1788 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1521 SdHoareTripleChecker+Valid, 2032 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 00:54:15,042 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1521 Valid, 2032 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 00:54:15,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1001 states. [2022-07-22 00:54:15,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1001 to 1001. [2022-07-22 00:54:15,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1001 states, 955 states have (on average 1.1916230366492147) internal successors, (1138), 967 states have internal predecessors, (1138), 40 states have call successors, (40), 3 states have call predecessors, (40), 4 states have return successors, (50), 31 states have call predecessors, (50), 40 states have call successors, (50) [2022-07-22 00:54:15,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1001 states to 1001 states and 1228 transitions. [2022-07-22 00:54:15,080 INFO L78 Accepts]: Start accepts. Automaton has 1001 states and 1228 transitions. Word has length 422 [2022-07-22 00:54:15,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:54:15,080 INFO L495 AbstractCegarLoop]: Abstraction has 1001 states and 1228 transitions. [2022-07-22 00:54:15,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 24.80952380952381) internal successors, (521), 21 states have internal predecessors, (521), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-22 00:54:15,081 INFO L276 IsEmpty]: Start isEmpty. Operand 1001 states and 1228 transitions. [2022-07-22 00:54:15,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 588 [2022-07-22 00:54:15,087 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:54:15,087 INFO L195 NwaCegarLoop]: trace histogram [15, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:54:15,135 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-07-22 00:54:15,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:54:15,304 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 00:54:15,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:54:15,304 INFO L85 PathProgramCache]: Analyzing trace with hash -286676461, now seen corresponding path program 2 times [2022-07-22 00:54:15,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:54:15,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682970472] [2022-07-22 00:54:15,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:54:15,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:54:15,930 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 00:54:15,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1162355974] [2022-07-22 00:54:15,931 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-22 00:54:15,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:54:15,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:54:15,932 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 00:54:15,933 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-07-22 00:54:18,917 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-22 00:54:18,918 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 00:54:18,926 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-22 00:54:18,938 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:54:19,615 INFO L134 CoverageAnalysis]: Checked inductivity of 2606 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2606 trivial. 0 not checked. [2022-07-22 00:54:19,615 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 00:54:19,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:54:19,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682970472] [2022-07-22 00:54:19,615 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 00:54:19,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1162355974] [2022-07-22 00:54:19,615 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1162355974] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:54:19,615 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 00:54:19,615 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 00:54:19,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918280820] [2022-07-22 00:54:19,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:54:19,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 00:54:19,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:54:19,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 00:54:19,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 00:54:19,617 INFO L87 Difference]: Start difference. First operand 1001 states and 1228 transitions. Second operand has 4 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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) [2022-07-22 00:54:19,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:54:19,673 INFO L93 Difference]: Finished difference Result 1001 states and 1228 transitions. [2022-07-22 00:54:19,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-22 00:54:19,674 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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 587 [2022-07-22 00:54:19,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:54:19,678 INFO L225 Difference]: With dead ends: 1001 [2022-07-22 00:54:19,678 INFO L226 Difference]: Without dead ends: 1000 [2022-07-22 00:54:19,678 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 587 GetRequests, 584 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-22 00:54:19,679 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 100 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 00:54:19,679 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 272 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 00:54:19,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1000 states. [2022-07-22 00:54:19,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1000 to 1000. [2022-07-22 00:54:19,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1000 states, 955 states have (on average 1.1905759162303664) internal successors, (1137), 966 states have internal predecessors, (1137), 40 states have call successors, (40), 3 states have call predecessors, (40), 4 states have return successors, (50), 31 states have call predecessors, (50), 40 states have call successors, (50) [2022-07-22 00:54:19,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1000 states to 1000 states and 1227 transitions. [2022-07-22 00:54:19,708 INFO L78 Accepts]: Start accepts. Automaton has 1000 states and 1227 transitions. Word has length 587 [2022-07-22 00:54:19,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:54:19,709 INFO L495 AbstractCegarLoop]: Abstraction has 1000 states and 1227 transitions. [2022-07-22 00:54:19,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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) [2022-07-22 00:54:19,709 INFO L276 IsEmpty]: Start isEmpty. Operand 1000 states and 1227 transitions. [2022-07-22 00:54:19,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 599 [2022-07-22 00:54:19,713 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:54:19,714 INFO L195 NwaCegarLoop]: trace histogram [15, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 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] [2022-07-22 00:54:19,750 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-07-22 00:54:19,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-07-22 00:54:19,927 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 00:54:19,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:54:19,928 INFO L85 PathProgramCache]: Analyzing trace with hash -645700228, now seen corresponding path program 1 times [2022-07-22 00:54:19,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:54:19,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293592501] [2022-07-22 00:54:19,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:54:19,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:54:20,484 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 00:54:20,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1020273860] [2022-07-22 00:54:20,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:54:20,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:54:20,485 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:54:20,492 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 00:54:20,492 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-07-22 00:54:26,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:54:26,155 INFO L263 TraceCheckSpWp]: Trace formula consists of 14238 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-22 00:54:26,167 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:54:26,715 INFO L134 CoverageAnalysis]: Checked inductivity of 2608 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2606 trivial. 0 not checked. [2022-07-22 00:54:26,715 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:54:27,260 INFO L134 CoverageAnalysis]: Checked inductivity of 2608 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2606 trivial. 0 not checked. [2022-07-22 00:54:27,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:54:27,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293592501] [2022-07-22 00:54:27,261 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 00:54:27,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1020273860] [2022-07-22 00:54:27,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1020273860] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 00:54:27,261 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-22 00:54:27,261 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 9 [2022-07-22 00:54:27,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021390244] [2022-07-22 00:54:27,261 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-22 00:54:27,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-22 00:54:27,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:54:27,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-22 00:54:27,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-07-22 00:54:27,263 INFO L87 Difference]: Start difference. First operand 1000 states and 1227 transitions. Second operand has 10 states, 9 states have (on average 18.444444444444443) internal successors, (166), 10 states have internal predecessors, (166), 4 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2022-07-22 00:54:27,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:54:27,527 INFO L93 Difference]: Finished difference Result 1092 states and 1378 transitions. [2022-07-22 00:54:27,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-22 00:54:27,531 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 18.444444444444443) internal successors, (166), 10 states have internal predecessors, (166), 4 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 598 [2022-07-22 00:54:27,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:54:27,535 INFO L225 Difference]: With dead ends: 1092 [2022-07-22 00:54:27,535 INFO L226 Difference]: Without dead ends: 1091 [2022-07-22 00:54:27,536 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1201 GetRequests, 1186 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=173, Unknown=0, NotChecked=0, Total=272 [2022-07-22 00:54:27,536 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 350 mSDsluCounter, 535 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 688 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-22 00:54:27,536 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [360 Valid, 688 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-22 00:54:27,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1091 states. [2022-07-22 00:54:27,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1091 to 1090. [2022-07-22 00:54:27,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1090 states, 1012 states have (on average 1.209486166007905) internal successors, (1224), 1053 states have internal predecessors, (1224), 70 states have call successors, (70), 6 states have call predecessors, (70), 7 states have return successors, (80), 34 states have call predecessors, (80), 70 states have call successors, (80) [2022-07-22 00:54:27,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1090 states to 1090 states and 1374 transitions. [2022-07-22 00:54:27,581 INFO L78 Accepts]: Start accepts. Automaton has 1090 states and 1374 transitions. Word has length 598 [2022-07-22 00:54:27,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:54:27,581 INFO L495 AbstractCegarLoop]: Abstraction has 1090 states and 1374 transitions. [2022-07-22 00:54:27,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 18.444444444444443) internal successors, (166), 10 states have internal predecessors, (166), 4 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2022-07-22 00:54:27,582 INFO L276 IsEmpty]: Start isEmpty. Operand 1090 states and 1374 transitions. [2022-07-22 00:54:27,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 635 [2022-07-22 00:54:27,588 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:54:27,589 INFO L195 NwaCegarLoop]: trace histogram [15, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:54:27,655 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-07-22 00:54:27,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-07-22 00:54:27,815 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 00:54:27,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:54:27,816 INFO L85 PathProgramCache]: Analyzing trace with hash -1564932964, now seen corresponding path program 2 times [2022-07-22 00:54:27,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:54:27,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907939343] [2022-07-22 00:54:27,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:54:27,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:54:28,451 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 00:54:28,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [710239135] [2022-07-22 00:54:28,452 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-22 00:54:28,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:54:28,452 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:54:28,456 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 00:54:28,463 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-07-22 00:54:34,575 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-22 00:54:34,575 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 00:54:34,666 INFO L263 TraceCheckSpWp]: Trace formula consists of 14346 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-22 00:54:34,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:54:35,473 INFO L134 CoverageAnalysis]: Checked inductivity of 2686 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 2606 trivial. 0 not checked. [2022-07-22 00:54:35,473 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:54:36,190 INFO L134 CoverageAnalysis]: Checked inductivity of 2686 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 2630 trivial. 0 not checked. [2022-07-22 00:54:36,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:54:36,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907939343] [2022-07-22 00:54:36,191 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 00:54:36,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [710239135] [2022-07-22 00:54:36,191 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [710239135] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 00:54:36,191 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-22 00:54:36,191 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 21 [2022-07-22 00:54:36,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117328998] [2022-07-22 00:54:36,192 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-22 00:54:36,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-07-22 00:54:36,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:54:36,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-07-22 00:54:36,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2022-07-22 00:54:36,194 INFO L87 Difference]: Start difference. First operand 1090 states and 1374 transitions. Second operand has 22 states, 21 states have (on average 10.333333333333334) internal successors, (217), 22 states have internal predecessors, (217), 10 states have call successors, (12), 6 states have call predecessors, (12), 6 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) [2022-07-22 00:54:37,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:54:37,103 INFO L93 Difference]: Finished difference Result 1272 states and 1675 transitions. [2022-07-22 00:54:37,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-07-22 00:54:37,104 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 10.333333333333334) internal successors, (217), 22 states have internal predecessors, (217), 10 states have call successors, (12), 6 states have call predecessors, (12), 6 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) Word has length 634 [2022-07-22 00:54:37,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:54:37,109 INFO L225 Difference]: With dead ends: 1272 [2022-07-22 00:54:37,109 INFO L226 Difference]: Without dead ends: 1271 [2022-07-22 00:54:37,110 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1285 GetRequests, 1246 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=549, Invalid=1091, Unknown=0, NotChecked=0, Total=1640 [2022-07-22 00:54:37,111 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 1173 mSDsluCounter, 584 mSDsCounter, 0 mSdLazyCounter, 984 mSolverCounterSat, 518 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1183 SdHoareTripleChecker+Valid, 737 SdHoareTripleChecker+Invalid, 1502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 518 IncrementalHoareTripleChecker+Valid, 984 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-22 00:54:37,111 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1183 Valid, 737 Invalid, 1502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [518 Valid, 984 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-22 00:54:37,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1271 states. [2022-07-22 00:54:37,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1271 to 1270. [2022-07-22 00:54:37,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1270 states, 1126 states have (on average 1.241563055062167) internal successors, (1398), 1227 states have internal predecessors, (1398), 130 states have call successors, (130), 12 states have call predecessors, (130), 13 states have return successors, (140), 40 states have call predecessors, (140), 130 states have call successors, (140) [2022-07-22 00:54:37,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1270 states to 1270 states and 1668 transitions. [2022-07-22 00:54:37,160 INFO L78 Accepts]: Start accepts. Automaton has 1270 states and 1668 transitions. Word has length 634 [2022-07-22 00:54:37,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:54:37,161 INFO L495 AbstractCegarLoop]: Abstraction has 1270 states and 1668 transitions. [2022-07-22 00:54:37,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 10.333333333333334) internal successors, (217), 22 states have internal predecessors, (217), 10 states have call successors, (12), 6 states have call predecessors, (12), 6 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) [2022-07-22 00:54:37,161 INFO L276 IsEmpty]: Start isEmpty. Operand 1270 states and 1668 transitions. [2022-07-22 00:54:37,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 707 [2022-07-22 00:54:37,168 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:54:37,169 INFO L195 NwaCegarLoop]: trace histogram [15, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:54:37,233 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-07-22 00:54:37,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-07-22 00:54:37,388 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 00:54:37,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:54:37,388 INFO L85 PathProgramCache]: Analyzing trace with hash 1223758556, now seen corresponding path program 3 times [2022-07-22 00:54:37,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:54:37,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377415170] [2022-07-22 00:54:37,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:54:37,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:54:38,135 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 00:54:38,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [480020243] [2022-07-22 00:54:38,136 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-22 00:54:38,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:54:38,136 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:54:38,137 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 00:54:38,138 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-07-22 00:54:43,547 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-07-22 00:54:43,547 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 00:54:43,562 INFO L263 TraceCheckSpWp]: Trace formula consists of 1565 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-22 00:54:43,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:54:43,632 INFO L134 CoverageAnalysis]: Checked inductivity of 3166 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 3065 trivial. 0 not checked. [2022-07-22 00:54:43,632 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 00:54:43,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:54:43,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377415170] [2022-07-22 00:54:43,632 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 00:54:43,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [480020243] [2022-07-22 00:54:43,632 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [480020243] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:54:43,632 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 00:54:43,633 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 00:54:43,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128528265] [2022-07-22 00:54:43,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:54:43,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 00:54:43,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:54:43,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 00:54:43,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-22 00:54:43,634 INFO L87 Difference]: Start difference. First operand 1270 states and 1668 transitions. Second operand has 5 states, 4 states have (on average 22.75) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-22 00:54:43,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:54:43,789 INFO L93 Difference]: Finished difference Result 1587 states and 2155 transitions. [2022-07-22 00:54:43,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-22 00:54:43,790 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 22.75) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 706 [2022-07-22 00:54:43,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:54:43,798 INFO L225 Difference]: With dead ends: 1587 [2022-07-22 00:54:43,798 INFO L226 Difference]: Without dead ends: 1586 [2022-07-22 00:54:43,799 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 709 GetRequests, 704 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-07-22 00:54:43,800 INFO L413 NwaCegarLoop]: 144 mSDtfsCounter, 264 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 00:54:43,800 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [265 Valid, 320 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 00:54:43,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1586 states. [2022-07-22 00:54:43,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1586 to 1513. [2022-07-22 00:54:43,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1297 states have (on average 1.2791056283731688) internal successors, (1659), 1452 states have internal predecessors, (1659), 193 states have call successors, (193), 21 states have call predecessors, (193), 22 states have return successors, (203), 49 states have call predecessors, (203), 193 states have call successors, (203) [2022-07-22 00:54:43,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2055 transitions. [2022-07-22 00:54:43,882 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2055 transitions. Word has length 706 [2022-07-22 00:54:43,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:54:43,883 INFO L495 AbstractCegarLoop]: Abstraction has 1513 states and 2055 transitions. [2022-07-22 00:54:43,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 22.75) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-22 00:54:43,883 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2055 transitions. [2022-07-22 00:54:43,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 708 [2022-07-22 00:54:43,890 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:54:43,890 INFO L195 NwaCegarLoop]: trace histogram [15, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:54:43,945 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-07-22 00:54:44,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:54:44,103 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 00:54:44,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:54:44,104 INFO L85 PathProgramCache]: Analyzing trace with hash 325074127, now seen corresponding path program 1 times [2022-07-22 00:54:44,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:54:44,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937982780] [2022-07-22 00:54:44,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:54:44,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:54:44,839 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 00:54:44,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [569039590] [2022-07-22 00:54:44,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:54:44,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:54:44,840 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:54:44,841 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 00:54:44,842 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-07-22 00:54:52,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:54:52,269 INFO L263 TraceCheckSpWp]: Trace formula consists of 14564 conjuncts, 23 conjunts are in the unsatisfiable core [2022-07-22 00:54:52,282 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:54:53,152 INFO L134 CoverageAnalysis]: Checked inductivity of 3157 backedges. 0 proven. 551 refuted. 0 times theorem prover too weak. 2606 trivial. 0 not checked. [2022-07-22 00:54:53,153 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:54:54,262 INFO L134 CoverageAnalysis]: Checked inductivity of 3157 backedges. 0 proven. 371 refuted. 0 times theorem prover too weak. 2786 trivial. 0 not checked. [2022-07-22 00:54:54,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:54:54,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937982780] [2022-07-22 00:54:54,263 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 00:54:54,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [569039590] [2022-07-22 00:54:54,263 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [569039590] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 00:54:54,263 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-22 00:54:54,263 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 23] total 45 [2022-07-22 00:54:54,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36910137] [2022-07-22 00:54:54,263 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-22 00:54:54,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-07-22 00:54:54,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:54:54,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-07-22 00:54:54,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=551, Invalid=1519, Unknown=0, NotChecked=0, Total=2070 [2022-07-22 00:54:54,266 INFO L87 Difference]: Start difference. First operand 1513 states and 2055 transitions. Second operand has 46 states, 45 states have (on average 7.133333333333334) internal successors, (321), 46 states have internal predecessors, (321), 22 states have call successors, (24), 12 states have call predecessors, (24), 12 states have return successors, (24), 22 states have call predecessors, (24), 22 states have call successors, (24) [2022-07-22 00:54:57,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:54:57,181 INFO L93 Difference]: Finished difference Result 2230 states and 3223 transitions. [2022-07-22 00:54:57,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-07-22 00:54:57,182 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 7.133333333333334) internal successors, (321), 46 states have internal predecessors, (321), 22 states have call successors, (24), 12 states have call predecessors, (24), 12 states have return successors, (24), 22 states have call predecessors, (24), 22 states have call successors, (24) Word has length 707 [2022-07-22 00:54:57,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:54:57,194 INFO L225 Difference]: With dead ends: 2230 [2022-07-22 00:54:57,194 INFO L226 Difference]: Without dead ends: 2229 [2022-07-22 00:54:57,197 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1455 GetRequests, 1368 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1615 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=2529, Invalid=5303, Unknown=0, NotChecked=0, Total=7832 [2022-07-22 00:54:57,198 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 3183 mSDsluCounter, 1180 mSDsCounter, 0 mSdLazyCounter, 2196 mSolverCounterSat, 1561 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3193 SdHoareTripleChecker+Valid, 1333 SdHoareTripleChecker+Invalid, 3757 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1561 IncrementalHoareTripleChecker+Valid, 2196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-07-22 00:54:57,199 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3193 Valid, 1333 Invalid, 3757 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1561 Valid, 2196 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-07-22 00:54:57,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2229 states. [2022-07-22 00:54:57,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2229 to 2209. [2022-07-22 00:54:57,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2209 states, 1753 states have (on average 1.343411294922989) internal successors, (2355), 2112 states have internal predecessors, (2355), 409 states have call successors, (409), 45 states have call predecessors, (409), 46 states have return successors, (419), 73 states have call predecessors, (419), 409 states have call successors, (419) [2022-07-22 00:54:57,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2209 states to 2209 states and 3183 transitions. [2022-07-22 00:54:57,371 INFO L78 Accepts]: Start accepts. Automaton has 2209 states and 3183 transitions. Word has length 707 [2022-07-22 00:54:57,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:54:57,372 INFO L495 AbstractCegarLoop]: Abstraction has 2209 states and 3183 transitions. [2022-07-22 00:54:57,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 45 states have (on average 7.133333333333334) internal successors, (321), 46 states have internal predecessors, (321), 22 states have call successors, (24), 12 states have call predecessors, (24), 12 states have return successors, (24), 22 states have call predecessors, (24), 22 states have call successors, (24) [2022-07-22 00:54:57,373 INFO L276 IsEmpty]: Start isEmpty. Operand 2209 states and 3183 transitions. [2022-07-22 00:54:57,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 852 [2022-07-22 00:54:57,389 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:54:57,390 INFO L195 NwaCegarLoop]: trace histogram [23, 22, 22, 22, 22, 22, 22, 22, 22, 21, 21, 21, 15, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:54:57,464 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2022-07-22 00:54:57,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:54:57,603 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 00:54:57,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:54:57,604 INFO L85 PathProgramCache]: Analyzing trace with hash -1740083121, now seen corresponding path program 2 times [2022-07-22 00:54:57,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:54:57,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52035502] [2022-07-22 00:54:57,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:54:57,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:54:58,257 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 00:54:58,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [840820828] [2022-07-22 00:54:58,257 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-22 00:54:58,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:54:58,257 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:54:58,258 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 00:54:58,263 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-07-22 00:55:06,561 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-22 00:55:06,561 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 00:55:06,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 14996 conjuncts, 47 conjunts are in the unsatisfiable core [2022-07-22 00:55:06,669 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:55:08,106 INFO L134 CoverageAnalysis]: Checked inductivity of 5401 backedges. 0 proven. 2795 refuted. 0 times theorem prover too weak. 2606 trivial. 0 not checked. [2022-07-22 00:55:08,106 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:55:10,142 INFO L134 CoverageAnalysis]: Checked inductivity of 5401 backedges. 0 proven. 1871 refuted. 0 times theorem prover too weak. 3530 trivial. 0 not checked. [2022-07-22 00:55:10,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:55:10,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52035502] [2022-07-22 00:55:10,143 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 00:55:10,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [840820828] [2022-07-22 00:55:10,143 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [840820828] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 00:55:10,143 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-22 00:55:10,143 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 47] total 93 [2022-07-22 00:55:10,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863608554] [2022-07-22 00:55:10,143 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-22 00:55:10,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 94 states [2022-07-22 00:55:10,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:55:10,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2022-07-22 00:55:10,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2255, Invalid=6487, Unknown=0, NotChecked=0, Total=8742 [2022-07-22 00:55:10,147 INFO L87 Difference]: Start difference. First operand 2209 states and 3183 transitions. Second operand has 94 states, 93 states have (on average 5.645161290322581) internal successors, (525), 94 states have internal predecessors, (525), 46 states have call successors, (48), 24 states have call predecessors, (48), 24 states have return successors, (48), 46 states have call predecessors, (48), 46 states have call successors, (48) [2022-07-22 00:55:17,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:55:17,758 INFO L93 Difference]: Finished difference Result 3622 states and 5491 transitions. [2022-07-22 00:55:17,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 140 states. [2022-07-22 00:55:17,759 INFO L78 Accepts]: Start accepts. Automaton has has 94 states, 93 states have (on average 5.645161290322581) internal successors, (525), 94 states have internal predecessors, (525), 46 states have call successors, (48), 24 states have call predecessors, (48), 24 states have return successors, (48), 46 states have call predecessors, (48), 46 states have call successors, (48) Word has length 851 [2022-07-22 00:55:17,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:55:17,779 INFO L225 Difference]: With dead ends: 3622 [2022-07-22 00:55:17,780 INFO L226 Difference]: Without dead ends: 3621 [2022-07-22 00:55:17,788 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1791 GetRequests, 1608 SyntacticMatches, 0 SemanticMatches, 183 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7507 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=10809, Invalid=23231, Unknown=0, NotChecked=0, Total=34040 [2022-07-22 00:55:17,788 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 7765 mSDsluCounter, 1949 mSDsCounter, 0 mSdLazyCounter, 5684 mSolverCounterSat, 4459 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7775 SdHoareTripleChecker+Valid, 2102 SdHoareTripleChecker+Invalid, 10143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4459 IncrementalHoareTripleChecker+Valid, 5684 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-07-22 00:55:17,789 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7775 Valid, 2102 Invalid, 10143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4459 Valid, 5684 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-07-22 00:55:17,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3621 states. [2022-07-22 00:55:17,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3621 to 3601. [2022-07-22 00:55:18,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3601 states, 2665 states have (on average 1.4060037523452158) internal successors, (3747), 3432 states have internal predecessors, (3747), 841 states have call successors, (841), 93 states have call predecessors, (841), 94 states have return successors, (851), 121 states have call predecessors, (851), 841 states have call successors, (851) [2022-07-22 00:55:18,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3601 states to 3601 states and 5439 transitions. [2022-07-22 00:55:18,013 INFO L78 Accepts]: Start accepts. Automaton has 3601 states and 5439 transitions. Word has length 851 [2022-07-22 00:55:18,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:55:18,014 INFO L495 AbstractCegarLoop]: Abstraction has 3601 states and 5439 transitions. [2022-07-22 00:55:18,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 94 states, 93 states have (on average 5.645161290322581) internal successors, (525), 94 states have internal predecessors, (525), 46 states have call successors, (48), 24 states have call predecessors, (48), 24 states have return successors, (48), 46 states have call predecessors, (48), 46 states have call successors, (48) [2022-07-22 00:55:18,015 INFO L276 IsEmpty]: Start isEmpty. Operand 3601 states and 5439 transitions. [2022-07-22 00:55:18,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1140 [2022-07-22 00:55:18,035 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:55:18,036 INFO L195 NwaCegarLoop]: trace histogram [47, 46, 46, 46, 46, 46, 46, 46, 46, 45, 45, 45, 15, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:55:18,136 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-07-22 00:55:18,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2022-07-22 00:55:18,259 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 00:55:18,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:55:18,260 INFO L85 PathProgramCache]: Analyzing trace with hash 812373839, now seen corresponding path program 3 times [2022-07-22 00:55:18,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:55:18,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030156371] [2022-07-22 00:55:18,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:55:18,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:55:18,959 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 00:55:18,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [395027189] [2022-07-22 00:55:18,959 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-22 00:55:18,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:55:18,960 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:55:18,965 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 00:55:18,966 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-07-22 00:55:25,976 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-07-22 00:55:25,976 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 00:55:25,994 INFO L263 TraceCheckSpWp]: Trace formula consists of 1567 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-22 00:55:26,003 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:55:26,061 INFO L134 CoverageAnalysis]: Checked inductivity of 15073 backedges. 452 proven. 0 refuted. 0 times theorem prover too weak. 14621 trivial. 0 not checked. [2022-07-22 00:55:26,062 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 00:55:26,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:55:26,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030156371] [2022-07-22 00:55:26,062 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 00:55:26,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [395027189] [2022-07-22 00:55:26,062 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [395027189] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:55:26,063 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 00:55:26,063 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-22 00:55:26,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027886159] [2022-07-22 00:55:26,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:55:26,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 00:55:26,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:55:26,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 00:55:26,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-22 00:55:26,065 INFO L87 Difference]: Start difference. First operand 3601 states and 5439 transitions. Second operand has 6 states, 5 states have (on average 18.4) internal successors, (92), 6 states have internal predecessors, (92), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-22 00:55:26,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:55:26,762 INFO L93 Difference]: Finished difference Result 6476 states and 9925 transitions. [2022-07-22 00:55:26,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-22 00:55:26,765 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 18.4) internal successors, (92), 6 states have internal predecessors, (92), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 1139 [2022-07-22 00:55:26,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:55:26,799 INFO L225 Difference]: With dead ends: 6476 [2022-07-22 00:55:26,799 INFO L226 Difference]: Without dead ends: 6475 [2022-07-22 00:55:26,803 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1147 GetRequests, 1138 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2022-07-22 00:55:26,804 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 179 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 00:55:26,805 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 413 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 00:55:26,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6475 states. [2022-07-22 00:55:27,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6475 to 6012. [2022-07-22 00:55:27,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6012 states, 4372 states have (on average 1.4533394327538884) internal successors, (6354), 5664 states have internal predecessors, (6354), 1456 states have call successors, (1456), 182 states have call predecessors, (1456), 183 states have return successors, (1466), 210 states have call predecessors, (1466), 1456 states have call successors, (1466) [2022-07-22 00:55:27,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6012 states to 6012 states and 9276 transitions. [2022-07-22 00:55:27,232 INFO L78 Accepts]: Start accepts. Automaton has 6012 states and 9276 transitions. Word has length 1139 [2022-07-22 00:55:27,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:55:27,233 INFO L495 AbstractCegarLoop]: Abstraction has 6012 states and 9276 transitions. [2022-07-22 00:55:27,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 18.4) internal successors, (92), 6 states have internal predecessors, (92), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-22 00:55:27,233 INFO L276 IsEmpty]: Start isEmpty. Operand 6012 states and 9276 transitions. [2022-07-22 00:55:27,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1142 [2022-07-22 00:55:27,347 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:55:27,348 INFO L195 NwaCegarLoop]: trace histogram [47, 46, 46, 46, 46, 46, 46, 46, 46, 44, 44, 44, 15, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 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] [2022-07-22 00:55:27,423 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2022-07-22 00:55:27,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-07-22 00:55:27,563 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 00:55:27,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:55:27,564 INFO L85 PathProgramCache]: Analyzing trace with hash 1701908781, now seen corresponding path program 1 times [2022-07-22 00:55:27,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:55:27,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38535556] [2022-07-22 00:55:27,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:55:27,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:55:28,633 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 00:55:28,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1546024208] [2022-07-22 00:55:28,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:55:28,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:55:28,634 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:55:28,635 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 00:55:28,635 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-07-22 00:55:38,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:55:38,328 INFO L263 TraceCheckSpWp]: Trace formula consists of 15864 conjuncts, 95 conjunts are in the unsatisfiable core [2022-07-22 00:55:38,343 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:55:41,534 INFO L134 CoverageAnalysis]: Checked inductivity of 15030 backedges. 0 proven. 12424 refuted. 0 times theorem prover too weak. 2606 trivial. 0 not checked. [2022-07-22 00:55:41,535 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:55:48,010 INFO L134 CoverageAnalysis]: Checked inductivity of 15030 backedges. 0 proven. 8284 refuted. 0 times theorem prover too weak. 6746 trivial. 0 not checked. [2022-07-22 00:55:48,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:55:48,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38535556] [2022-07-22 00:55:48,011 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 00:55:48,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1546024208] [2022-07-22 00:55:48,011 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1546024208] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 00:55:48,011 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-22 00:55:48,012 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [94, 95] total 189 [2022-07-22 00:55:48,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439993030] [2022-07-22 00:55:48,012 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-22 00:55:48,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 190 states [2022-07-22 00:55:48,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:55:48,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 190 interpolants. [2022-07-22 00:55:48,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9119, Invalid=26791, Unknown=0, NotChecked=0, Total=35910 [2022-07-22 00:55:48,022 INFO L87 Difference]: Start difference. First operand 6012 states and 9276 transitions. Second operand has 190 states, 189 states have (on average 4.957671957671957) internal successors, (937), 190 states have internal predecessors, (937), 94 states have call successors, (96), 48 states have call predecessors, (96), 48 states have return successors, (96), 94 states have call predecessors, (96), 94 states have call successors, (96) [2022-07-22 00:56:19,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:56:19,967 INFO L93 Difference]: Finished difference Result 11444 states and 18040 transitions. [2022-07-22 00:56:19,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 284 states. [2022-07-22 00:56:19,969 INFO L78 Accepts]: Start accepts. Automaton has has 190 states, 189 states have (on average 4.957671957671957) internal successors, (937), 190 states have internal predecessors, (937), 94 states have call successors, (96), 48 states have call predecessors, (96), 48 states have return successors, (96), 94 states have call predecessors, (96), 94 states have call successors, (96) Word has length 1141 [2022-07-22 00:56:19,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:56:20,025 INFO L225 Difference]: With dead ends: 11444 [2022-07-22 00:56:20,025 INFO L226 Difference]: Without dead ends: 11443 [2022-07-22 00:56:20,043 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2467 GetRequests, 2092 SyntacticMatches, 0 SemanticMatches, 375 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32251 ImplicationChecksByTransitivity, 18.0s TimeCoverageRelationStatistics Valid=44649, Invalid=97103, Unknown=0, NotChecked=0, Total=141752 [2022-07-22 00:56:20,044 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 19540 mSDsluCounter, 3337 mSDsCounter, 0 mSdLazyCounter, 10536 mSolverCounterSat, 11461 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19550 SdHoareTripleChecker+Valid, 3490 SdHoareTripleChecker+Invalid, 21997 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11461 IncrementalHoareTripleChecker+Valid, 10536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2022-07-22 00:56:20,044 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19550 Valid, 3490 Invalid, 21997 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11461 Valid, 10536 Invalid, 0 Unknown, 0 Unchecked, 8.4s Time] [2022-07-22 00:56:20,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11443 states. [2022-07-22 00:56:20,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11443 to 11388. [2022-07-22 00:56:20,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11388 states, 8020 states have (on average 1.4865336658354116) internal successors, (11922), 10704 states have internal predecessors, (11922), 2992 states have call successors, (2992), 374 states have call predecessors, (2992), 375 states have return successors, (3002), 402 states have call predecessors, (3002), 2992 states have call successors, (3002) [2022-07-22 00:56:20,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11388 states to 11388 states and 17916 transitions. [2022-07-22 00:56:20,964 INFO L78 Accepts]: Start accepts. Automaton has 11388 states and 17916 transitions. Word has length 1141 [2022-07-22 00:56:20,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:56:20,966 INFO L495 AbstractCegarLoop]: Abstraction has 11388 states and 17916 transitions. [2022-07-22 00:56:20,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 190 states, 189 states have (on average 4.957671957671957) internal successors, (937), 190 states have internal predecessors, (937), 94 states have call successors, (96), 48 states have call predecessors, (96), 48 states have return successors, (96), 94 states have call predecessors, (96), 94 states have call successors, (96) [2022-07-22 00:56:20,967 INFO L276 IsEmpty]: Start isEmpty. Operand 11388 states and 17916 transitions. [2022-07-22 00:56:21,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1718 [2022-07-22 00:56:21,039 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:56:21,040 INFO L195 NwaCegarLoop]: trace histogram [95, 94, 94, 94, 94, 94, 94, 94, 94, 92, 92, 92, 15, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 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] [2022-07-22 00:56:21,165 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2022-07-22 00:56:21,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:56:21,263 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 00:56:21,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:56:21,264 INFO L85 PathProgramCache]: Analyzing trace with hash -1115136211, now seen corresponding path program 2 times [2022-07-22 00:56:21,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:56:21,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809283763] [2022-07-22 00:56:21,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:56:21,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:56:22,422 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 00:56:22,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1910358947] [2022-07-22 00:56:22,423 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-22 00:56:22,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:56:22,423 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:56:22,428 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 00:56:22,430 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-07-22 00:56:33,199 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-22 00:56:33,199 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 00:56:33,335 INFO L263 TraceCheckSpWp]: Trace formula consists of 17592 conjuncts, 191 conjunts are in the unsatisfiable core [2022-07-22 00:56:33,354 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:56:43,152 INFO L134 CoverageAnalysis]: Checked inductivity of 55062 backedges. 0 proven. 52456 refuted. 0 times theorem prover too weak. 2606 trivial. 0 not checked. [2022-07-22 00:56:43,153 INFO L328 TraceCheckSpWp]: Computing backward predicates...