./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test1-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version f4b24e32 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_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 8a34048511216dfe9a14f70dd929fd2de5a6eaf4560cb9e9e466dd0467a1d6d7 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 14:23:28,348 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 14:23:28,350 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 14:23:28,375 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 14:23:28,376 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 14:23:28,377 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 14:23:28,381 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 14:23:28,386 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 14:23:28,388 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 14:23:28,392 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 14:23:28,393 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 14:23:28,395 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 14:23:28,395 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 14:23:28,398 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 14:23:28,399 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 14:23:28,401 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 14:23:28,402 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 14:23:28,403 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 14:23:28,407 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 14:23:28,411 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 14:23:28,413 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 14:23:28,414 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 14:23:28,415 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 14:23:28,416 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 14:23:28,417 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 14:23:28,425 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 14:23:28,426 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 14:23:28,427 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 14:23:28,428 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 14:23:28,428 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 14:23:28,429 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 14:23:28,430 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 14:23:28,431 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 14:23:28,432 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 14:23:28,432 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 14:23:28,433 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 14:23:28,433 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 14:23:28,434 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 14:23:28,434 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 14:23:28,434 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 14:23:28,435 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 14:23:28,437 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 14:23:28,437 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-07-14 14:23:28,475 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 14:23:28,476 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 14:23:28,476 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 14:23:28,476 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 14:23:28,477 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 14:23:28,477 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 14:23:28,478 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 14:23:28,478 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 14:23:28,478 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 14:23:28,479 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 14:23:28,479 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-14 14:23:28,479 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-14 14:23:28,480 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 14:23:28,480 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-14 14:23:28,480 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 14:23:28,480 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 14:23:28,480 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 14:23:28,480 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 14:23:28,482 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-07-14 14:23:28,482 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-14 14:23:28,483 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 14:23:28,483 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 14:23:28,483 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 14:23:28,483 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 14:23:28,484 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 14:23:28,484 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 14:23:28,484 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 14:23:28,484 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 14:23:28,484 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 14:23:28,485 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 14:23:28,485 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 14:23:28,485 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-14 14:23:28,485 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 14:23:28,485 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8a34048511216dfe9a14f70dd929fd2de5a6eaf4560cb9e9e466dd0467a1d6d7 [2022-07-14 14:23:28,683 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 14:23:28,709 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 14:23:28,711 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 14:23:28,712 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 14:23:28,713 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 14:23:28,714 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test1-1.i [2022-07-14 14:23:28,768 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a66cb7b9e/3924683cc69d461e91e8ac38af3000a8/FLAG37d88647e [2022-07-14 14:23:29,204 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 14:23:29,205 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test1-1.i [2022-07-14 14:23:29,227 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a66cb7b9e/3924683cc69d461e91e8ac38af3000a8/FLAG37d88647e [2022-07-14 14:23:29,737 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a66cb7b9e/3924683cc69d461e91e8ac38af3000a8 [2022-07-14 14:23:29,739 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 14:23:29,740 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 14:23:29,741 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 14:23:29,742 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 14:23:29,745 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 14:23:29,745 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 02:23:29" (1/1) ... [2022-07-14 14:23:29,746 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52700155 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:23:29, skipping insertion in model container [2022-07-14 14:23:29,747 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 02:23:29" (1/1) ... [2022-07-14 14:23:29,753 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 14:23:29,794 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 14:23:30,098 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_JEN_test1-1.i[33021,33034] [2022-07-14 14:23:30,177 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 14:23:30,185 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 14:23:30,213 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_JEN_test1-1.i[33021,33034] [2022-07-14 14:23:30,252 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 14:23:30,282 INFO L208 MainTranslator]: Completed translation [2022-07-14 14:23:30,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:23:30 WrapperNode [2022-07-14 14:23:30,283 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 14:23:30,284 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 14:23:30,285 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 14:23:30,285 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 14:23:30,291 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:23:30" (1/1) ... [2022-07-14 14:23:30,313 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:23:30" (1/1) ... [2022-07-14 14:23:30,392 INFO L137 Inliner]: procedures = 177, calls = 186, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 627 [2022-07-14 14:23:30,393 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 14:23:30,394 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 14:23:30,394 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 14:23:30,394 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 14:23:30,402 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:23:30" (1/1) ... [2022-07-14 14:23:30,402 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:23:30" (1/1) ... [2022-07-14 14:23:30,421 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:23:30" (1/1) ... [2022-07-14 14:23:30,428 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:23:30" (1/1) ... [2022-07-14 14:23:30,484 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:23:30" (1/1) ... [2022-07-14 14:23:30,496 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:23:30" (1/1) ... [2022-07-14 14:23:30,509 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:23:30" (1/1) ... [2022-07-14 14:23:30,515 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 14:23:30,524 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 14:23:30,524 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 14:23:30,524 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 14:23:30,525 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:23:30" (1/1) ... [2022-07-14 14:23:30,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 14:23:30,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:23:30,561 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-14 14:23:30,572 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-14 14:23:30,596 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-14 14:23:30,596 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-07-14 14:23:30,596 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-07-14 14:23:30,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-14 14:23:30,597 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-14 14:23:30,597 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-14 14:23:30,597 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-14 14:23:30,597 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 14:23:30,598 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-14 14:23:30,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-14 14:23:30,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-14 14:23:30,598 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-14 14:23:30,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-14 14:23:30,598 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 14:23:30,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 14:23:30,743 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 14:23:30,749 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 14:23:31,622 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 14:23:31,633 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 14:23:31,634 INFO L299 CfgBuilder]: Removed 31 assume(true) statements. [2022-07-14 14:23:31,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 02:23:31 BoogieIcfgContainer [2022-07-14 14:23:31,637 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 14:23:31,638 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-14 14:23:31,638 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-14 14:23:31,642 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-14 14:23:31,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 02:23:29" (1/3) ... [2022-07-14 14:23:31,643 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c312073 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 02:23:31, skipping insertion in model container [2022-07-14 14:23:31,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:23:30" (2/3) ... [2022-07-14 14:23:31,643 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c312073 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 02:23:31, skipping insertion in model container [2022-07-14 14:23:31,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 02:23:31" (3/3) ... [2022-07-14 14:23:31,648 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_JEN_test1-1.i [2022-07-14 14:23:31,662 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-14 14:23:31,662 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-07-14 14:23:31,729 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 14:23:31,740 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@e1a259, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@7da6373d [2022-07-14 14:23:31,740 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-07-14 14:23:31,746 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) [2022-07-14 14:23:31,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-07-14 14:23:31,755 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:23:31,755 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-07-14 14:23:31,756 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-14 14:23:31,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:23:31,762 INFO L85 PathProgramCache]: Analyzing trace with hash 1126635289, now seen corresponding path program 1 times [2022-07-14 14:23:31,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:23:31,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304539806] [2022-07-14 14:23:31,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:23:31,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:23:31,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:23:31,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:23:31,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:23:31,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304539806] [2022-07-14 14:23:31,919 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304539806] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:23:31,919 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:23:31,919 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 14:23:31,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683926505] [2022-07-14 14:23:31,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:23:31,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 14:23:31,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:23:31,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:23:31,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:23:31,960 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) [2022-07-14 14:23:32,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:23:32,034 INFO L93 Difference]: Finished difference Result 366 states and 607 transitions. [2022-07-14 14:23:32,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:23:32,041 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-07-14 14:23:32,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:23:32,050 INFO L225 Difference]: With dead ends: 366 [2022-07-14 14:23:32,057 INFO L226 Difference]: Without dead ends: 226 [2022-07-14 14:23:32,063 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:23:32,068 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 [2022-07-14 14:23:32,069 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] [2022-07-14 14:23:32,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2022-07-14 14:23:32,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 137. [2022-07-14 14:23:32,119 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) [2022-07-14 14:23:32,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 184 transitions. [2022-07-14 14:23:32,127 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 184 transitions. Word has length 6 [2022-07-14 14:23:32,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:23:32,128 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 184 transitions. [2022-07-14 14:23:32,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:23:32,129 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 184 transitions. [2022-07-14 14:23:32,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-14 14:23:32,133 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:23:32,133 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] [2022-07-14 14:23:32,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-14 14:23:32,134 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-14 14:23:32,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:23:32,135 INFO L85 PathProgramCache]: Analyzing trace with hash -1116651610, now seen corresponding path program 1 times [2022-07-14 14:23:32,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:23:32,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971414911] [2022-07-14 14:23:32,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:23:32,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:23:32,311 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-14 14:23:32,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [388980465] [2022-07-14 14:23:32,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:23:32,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:23:32,314 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:23:32,316 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 14:23:32,317 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-14 14:23:32,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:23:32,904 INFO L263 TraceCheckSpWp]: Trace formula consists of 1517 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 14:23:32,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:23:32,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:23:32,945 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 14:23:32,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:23:32,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971414911] [2022-07-14 14:23:32,946 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-14 14:23:32,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [388980465] [2022-07-14 14:23:32,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [388980465] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:23:32,947 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:23:32,947 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 14:23:32,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691542171] [2022-07-14 14:23:32,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:23:32,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 14:23:32,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:23:32,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:23:32,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:23:32,950 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) [2022-07-14 14:23:33,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:23:33,018 INFO L93 Difference]: Finished difference Result 289 states and 393 transitions. [2022-07-14 14:23:33,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:23:33,018 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 [2022-07-14 14:23:33,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:23:33,020 INFO L225 Difference]: With dead ends: 289 [2022-07-14 14:23:33,020 INFO L226 Difference]: Without dead ends: 158 [2022-07-14 14:23:33,021 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 [2022-07-14 14:23:33,022 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 [2022-07-14 14:23:33,023 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] [2022-07-14 14:23:33,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2022-07-14 14:23:33,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 157. [2022-07-14 14:23:33,033 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) [2022-07-14 14:23:33,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 204 transitions. [2022-07-14 14:23:33,035 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 204 transitions. Word has length 56 [2022-07-14 14:23:33,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:23:33,035 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 204 transitions. [2022-07-14 14:23:33,035 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) [2022-07-14 14:23:33,036 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 204 transitions. [2022-07-14 14:23:33,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-14 14:23:33,037 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:23:33,037 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] [2022-07-14 14:23:33,067 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-07-14 14:23:33,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:23:33,261 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-14 14:23:33,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:23:33,262 INFO L85 PathProgramCache]: Analyzing trace with hash -1391411224, now seen corresponding path program 1 times [2022-07-14 14:23:33,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:23:33,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357253651] [2022-07-14 14:23:33,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:23:33,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:23:33,383 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-14 14:23:33,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [53279549] [2022-07-14 14:23:33,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:23:33,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:23:33,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:23:33,386 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 14:23:33,387 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-14 14:23:33,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:23:33,958 INFO L263 TraceCheckSpWp]: Trace formula consists of 1519 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 14:23:33,962 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:23:33,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:23:33,983 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 14:23:33,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:23:33,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357253651] [2022-07-14 14:23:33,983 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-14 14:23:33,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [53279549] [2022-07-14 14:23:33,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [53279549] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:23:33,984 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:23:33,984 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 14:23:33,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130290987] [2022-07-14 14:23:33,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:23:33,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 14:23:33,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:23:33,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 14:23:33,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 14:23:33,986 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) [2022-07-14 14:23:34,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:23:34,056 INFO L93 Difference]: Finished difference Result 299 states and 393 transitions. [2022-07-14 14:23:34,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 14:23:34,057 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 [2022-07-14 14:23:34,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:23:34,060 INFO L225 Difference]: With dead ends: 299 [2022-07-14 14:23:34,060 INFO L226 Difference]: Without dead ends: 148 [2022-07-14 14:23:34,063 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 [2022-07-14 14:23:34,065 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, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 14:23:34,066 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 339 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 14:23:34,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2022-07-14 14:23:34,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 143. [2022-07-14 14:23:34,100 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) [2022-07-14 14:23:34,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 183 transitions. [2022-07-14 14:23:34,102 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 183 transitions. Word has length 56 [2022-07-14 14:23:34,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:23:34,102 INFO L495 AbstractCegarLoop]: Abstraction has 143 states and 183 transitions. [2022-07-14 14:23:34,103 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) [2022-07-14 14:23:34,103 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 183 transitions. [2022-07-14 14:23:34,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-14 14:23:34,105 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:23:34,105 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] [2022-07-14 14:23:34,136 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-14 14:23:34,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-07-14 14:23:34,330 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-14 14:23:34,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:23:34,331 INFO L85 PathProgramCache]: Analyzing trace with hash 632524954, now seen corresponding path program 1 times [2022-07-14 14:23:34,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:23:34,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373166539] [2022-07-14 14:23:34,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:23:34,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:23:34,422 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-14 14:23:34,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [413375882] [2022-07-14 14:23:34,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:23:34,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:23:34,423 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:23:34,424 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 14:23:34,426 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-14 14:23:35,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:23:35,055 INFO L263 TraceCheckSpWp]: Trace formula consists of 1505 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 14:23:35,059 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:23:35,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:23:35,144 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 14:23:35,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:23:35,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373166539] [2022-07-14 14:23:35,144 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-14 14:23:35,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [413375882] [2022-07-14 14:23:35,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [413375882] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:23:35,146 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:23:35,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 14:23:35,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80604886] [2022-07-14 14:23:35,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:23:35,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 14:23:35,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:23:35,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 14:23:35,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 14:23:35,148 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) [2022-07-14 14:23:35,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:23:35,180 INFO L93 Difference]: Finished difference Result 238 states and 298 transitions. [2022-07-14 14:23:35,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 14:23:35,180 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 [2022-07-14 14:23:35,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:23:35,182 INFO L225 Difference]: With dead ends: 238 [2022-07-14 14:23:35,182 INFO L226 Difference]: Without dead ends: 237 [2022-07-14 14:23:35,183 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 [2022-07-14 14:23:35,183 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 [2022-07-14 14:23:35,184 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] [2022-07-14 14:23:35,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2022-07-14 14:23:35,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 235. [2022-07-14 14:23:35,193 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) [2022-07-14 14:23:35,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 295 transitions. [2022-07-14 14:23:35,195 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 295 transitions. Word has length 56 [2022-07-14 14:23:35,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:23:35,195 INFO L495 AbstractCegarLoop]: Abstraction has 235 states and 295 transitions. [2022-07-14 14:23:35,196 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) [2022-07-14 14:23:35,196 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 295 transitions. [2022-07-14 14:23:35,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-07-14 14:23:35,197 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:23:35,197 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] [2022-07-14 14:23:35,227 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-14 14:23:35,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:23:35,420 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)] === [2022-07-14 14:23:35,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:23:35,420 INFO L85 PathProgramCache]: Analyzing trace with hash -1866562491, now seen corresponding path program 1 times [2022-07-14 14:23:35,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:23:35,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93137617] [2022-07-14 14:23:35,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:23:35,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:23:35,514 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-14 14:23:35,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1068271080] [2022-07-14 14:23:35,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:23:35,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:23:35,516 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:23:35,517 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 14:23:35,518 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-14 14:23:36,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:23:36,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 1506 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 14:23:36,212 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:23:36,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:23:36,276 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 14:23:36,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:23:36,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93137617] [2022-07-14 14:23:36,277 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-14 14:23:36,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1068271080] [2022-07-14 14:23:36,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1068271080] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:23:36,277 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:23:36,277 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 14:23:36,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093052943] [2022-07-14 14:23:36,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:23:36,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 14:23:36,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:23:36,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 14:23:36,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 14:23:36,279 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) [2022-07-14 14:23:36,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:23:36,303 INFO L93 Difference]: Finished difference Result 235 states and 295 transitions. [2022-07-14 14:23:36,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 14:23:36,304 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 [2022-07-14 14:23:36,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:23:36,306 INFO L225 Difference]: With dead ends: 235 [2022-07-14 14:23:36,306 INFO L226 Difference]: Without dead ends: 234 [2022-07-14 14:23:36,306 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 [2022-07-14 14:23:36,307 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 [2022-07-14 14:23:36,307 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] [2022-07-14 14:23:36,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2022-07-14 14:23:36,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2022-07-14 14:23:36,316 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) [2022-07-14 14:23:36,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 294 transitions. [2022-07-14 14:23:36,317 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 294 transitions. Word has length 57 [2022-07-14 14:23:36,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:23:36,318 INFO L495 AbstractCegarLoop]: Abstraction has 234 states and 294 transitions. [2022-07-14 14:23:36,318 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) [2022-07-14 14:23:36,318 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 294 transitions. [2022-07-14 14:23:36,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-07-14 14:23:36,319 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:23:36,319 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] [2022-07-14 14:23:36,348 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-14 14:23:36,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:23:36,548 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)] === [2022-07-14 14:23:36,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:23:36,548 INFO L85 PathProgramCache]: Analyzing trace with hash 1237589276, now seen corresponding path program 1 times [2022-07-14 14:23:36,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:23:36,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553220485] [2022-07-14 14:23:36,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:23:36,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:23:36,728 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-14 14:23:36,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [156330629] [2022-07-14 14:23:36,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:23:36,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:23:36,744 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:23:36,760 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 14:23:36,762 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-14 14:23:37,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:23:37,426 INFO L263 TraceCheckSpWp]: Trace formula consists of 1529 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 14:23:37,429 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:23:37,506 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:23:37,506 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 14:23:37,595 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:23:37,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:23:37,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553220485] [2022-07-14 14:23:37,596 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-14 14:23:37,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [156330629] [2022-07-14 14:23:37,596 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [156330629] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 14:23:37,596 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-14 14:23:37,596 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-07-14 14:23:37,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835808935] [2022-07-14 14:23:37,597 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-14 14:23:37,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-14 14:23:37,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:23:37,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-14 14:23:37,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-07-14 14:23:37,598 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) [2022-07-14 14:23:37,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:23:37,699 INFO L93 Difference]: Finished difference Result 367 states and 469 transitions. [2022-07-14 14:23:37,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 14:23:37,699 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 [2022-07-14 14:23:37,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:23:37,701 INFO L225 Difference]: With dead ends: 367 [2022-07-14 14:23:37,702 INFO L226 Difference]: Without dead ends: 333 [2022-07-14 14:23:37,702 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 [2022-07-14 14:23:37,703 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, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:23:37,703 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [531 Valid, 714 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 14:23:37,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2022-07-14 14:23:37,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 333. [2022-07-14 14:23:37,713 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) [2022-07-14 14:23:37,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 414 transitions. [2022-07-14 14:23:37,715 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 414 transitions. Word has length 61 [2022-07-14 14:23:37,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:23:37,716 INFO L495 AbstractCegarLoop]: Abstraction has 333 states and 414 transitions. [2022-07-14 14:23:37,716 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) [2022-07-14 14:23:37,716 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 414 transitions. [2022-07-14 14:23:37,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-07-14 14:23:37,717 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:23:37,717 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] [2022-07-14 14:23:37,748 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-14 14:23:37,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:23:37,936 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)] === [2022-07-14 14:23:37,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:23:37,936 INFO L85 PathProgramCache]: Analyzing trace with hash 1237285228, now seen corresponding path program 1 times [2022-07-14 14:23:37,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:23:37,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781177064] [2022-07-14 14:23:37,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:23:37,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:23:38,015 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-14 14:23:38,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [599716123] [2022-07-14 14:23:38,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:23:38,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:23:38,016 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:23:38,017 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 14:23:38,028 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-14 14:23:38,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:23:38,855 INFO L263 TraceCheckSpWp]: Trace formula consists of 1535 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-14 14:23:38,860 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:23:38,968 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:23:38,968 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 14:23:38,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:23:38,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781177064] [2022-07-14 14:23:38,969 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-14 14:23:38,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [599716123] [2022-07-14 14:23:38,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [599716123] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:23:38,969 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:23:38,969 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 14:23:38,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469176845] [2022-07-14 14:23:38,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:23:38,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 14:23:38,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:23:38,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:23:38,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:23:38,971 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) [2022-07-14 14:23:39,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:23:39,011 INFO L93 Difference]: Finished difference Result 606 states and 760 transitions. [2022-07-14 14:23:39,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:23:39,011 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 [2022-07-14 14:23:39,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:23:39,013 INFO L225 Difference]: With dead ends: 606 [2022-07-14 14:23:39,013 INFO L226 Difference]: Without dead ends: 331 [2022-07-14 14:23:39,014 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 [2022-07-14 14:23:39,015 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 [2022-07-14 14:23:39,015 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] [2022-07-14 14:23:39,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2022-07-14 14:23:39,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 331. [2022-07-14 14:23:39,024 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) [2022-07-14 14:23:39,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 411 transitions. [2022-07-14 14:23:39,026 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 411 transitions. Word has length 61 [2022-07-14 14:23:39,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:23:39,026 INFO L495 AbstractCegarLoop]: Abstraction has 331 states and 411 transitions. [2022-07-14 14:23:39,026 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) [2022-07-14 14:23:39,026 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 411 transitions. [2022-07-14 14:23:39,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-07-14 14:23:39,027 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:23:39,028 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] [2022-07-14 14:23:39,051 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-07-14 14:23:39,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:23:39,240 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)] === [2022-07-14 14:23:39,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:23:39,240 INFO L85 PathProgramCache]: Analyzing trace with hash -1438130325, now seen corresponding path program 1 times [2022-07-14 14:23:39,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:23:39,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812041181] [2022-07-14 14:23:39,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:23:39,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:23:39,277 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-14 14:23:39,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1606808993] [2022-07-14 14:23:39,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:23:39,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:23:39,278 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:23:39,279 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 14:23:39,307 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-14 14:24:02,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:24:02,248 INFO L263 TraceCheckSpWp]: Trace formula consists of 672 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-14 14:24:02,250 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:24:02,270 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:24:02,271 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 14:24:02,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:24:02,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812041181] [2022-07-14 14:24:02,271 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-14 14:24:02,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1606808993] [2022-07-14 14:24:02,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1606808993] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:24:02,272 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:24:02,272 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 14:24:02,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191087431] [2022-07-14 14:24:02,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:24:02,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 14:24:02,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:24:02,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 14:24:02,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 14:24:02,274 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) [2022-07-14 14:24:02,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:24:02,305 INFO L93 Difference]: Finished difference Result 613 states and 776 transitions. [2022-07-14 14:24:02,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 14:24:02,306 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 [2022-07-14 14:24:02,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:24:02,308 INFO L225 Difference]: With dead ends: 613 [2022-07-14 14:24:02,309 INFO L226 Difference]: Without dead ends: 334 [2022-07-14 14:24:02,309 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 [2022-07-14 14:24:02,310 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 [2022-07-14 14:24:02,310 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] [2022-07-14 14:24:02,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2022-07-14 14:24:02,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 334. [2022-07-14 14:24:02,322 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) [2022-07-14 14:24:02,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 417 transitions. [2022-07-14 14:24:02,324 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 417 transitions. Word has length 76 [2022-07-14 14:24:02,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:24:02,325 INFO L495 AbstractCegarLoop]: Abstraction has 334 states and 417 transitions. [2022-07-14 14:24:02,325 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) [2022-07-14 14:24:02,325 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 417 transitions. [2022-07-14 14:24:02,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-07-14 14:24:02,326 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:24:02,326 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] [2022-07-14 14:24:02,367 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-14 14:24:02,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:24:02,528 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-14 14:24:02,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:24:02,528 INFO L85 PathProgramCache]: Analyzing trace with hash 766935497, now seen corresponding path program 1 times [2022-07-14 14:24:02,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:24:02,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647108080] [2022-07-14 14:24:02,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:24:02,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:24:02,586 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-14 14:24:02,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [424080508] [2022-07-14 14:24:02,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:24:02,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:24:02,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:24:02,590 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 14:24:02,592 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-14 14:24:03,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:24:03,828 INFO L263 TraceCheckSpWp]: Trace formula consists of 702 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-14 14:24:03,831 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:24:03,849 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-14 14:24:03,849 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 14:24:03,935 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-14 14:24:03,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:24:03,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647108080] [2022-07-14 14:24:03,937 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-14 14:24:03,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [424080508] [2022-07-14 14:24:03,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [424080508] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 14:24:03,940 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-14 14:24:03,941 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-07-14 14:24:03,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995972196] [2022-07-14 14:24:03,943 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-14 14:24:03,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-14 14:24:03,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:24:03,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-14 14:24:03,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-14 14:24:03,945 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) [2022-07-14 14:24:04,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:24:04,056 INFO L93 Difference]: Finished difference Result 627 states and 803 transitions. [2022-07-14 14:24:04,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-14 14:24:04,057 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 [2022-07-14 14:24:04,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:24:04,059 INFO L225 Difference]: With dead ends: 627 [2022-07-14 14:24:04,059 INFO L226 Difference]: Without dead ends: 345 [2022-07-14 14:24:04,060 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 [2022-07-14 14:24:04,061 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, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 14:24:04,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 508 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 14:24:04,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2022-07-14 14:24:04,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 343. [2022-07-14 14:24:04,092 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) [2022-07-14 14:24:04,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 431 transitions. [2022-07-14 14:24:04,094 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 431 transitions. Word has length 78 [2022-07-14 14:24:04,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:24:04,094 INFO L495 AbstractCegarLoop]: Abstraction has 343 states and 431 transitions. [2022-07-14 14:24:04,095 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) [2022-07-14 14:24:04,095 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 431 transitions. [2022-07-14 14:24:04,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-07-14 14:24:04,096 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:24:04,096 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] [2022-07-14 14:24:04,111 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-07-14 14:24:04,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-07-14 14:24:04,308 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-14 14:24:04,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:24:04,308 INFO L85 PathProgramCache]: Analyzing trace with hash 432269099, now seen corresponding path program 2 times [2022-07-14 14:24:04,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:24:04,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081835393] [2022-07-14 14:24:04,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:24:04,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:24:04,361 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-14 14:24:04,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1602506529] [2022-07-14 14:24:04,362 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-14 14:24:04,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:24:04,362 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:24:04,363 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 14:24:04,383 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-07-14 14:24:05,319 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-14 14:24:05,319 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 14:24:05,325 INFO L263 TraceCheckSpWp]: Trace formula consists of 762 conjuncts, 16 conjunts are in the unsatisfiable core [2022-07-14 14:24:05,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:24:05,386 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 22 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-14 14:24:05,386 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 14:24:05,521 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 4 proven. 27 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-07-14 14:24:05,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:24:05,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081835393] [2022-07-14 14:24:05,521 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-14 14:24:05,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1602506529] [2022-07-14 14:24:05,521 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1602506529] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 14:24:05,522 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-14 14:24:05,522 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 15 [2022-07-14 14:24:05,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114442356] [2022-07-14 14:24:05,522 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-14 14:24:05,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-07-14 14:24:05,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:24:05,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-07-14 14:24:05,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2022-07-14 14:24:05,523 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) [2022-07-14 14:24:06,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:24:06,116 INFO L93 Difference]: Finished difference Result 688 states and 894 transitions. [2022-07-14 14:24:06,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-14 14:24:06,117 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 [2022-07-14 14:24:06,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:24:06,119 INFO L225 Difference]: With dead ends: 688 [2022-07-14 14:24:06,119 INFO L226 Difference]: Without dead ends: 351 [2022-07-14 14:24:06,120 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 [2022-07-14 14:24:06,121 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 [2022-07-14 14:24:06,121 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] [2022-07-14 14:24:06,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2022-07-14 14:24:06,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 343. [2022-07-14 14:24:06,133 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) [2022-07-14 14:24:06,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 431 transitions. [2022-07-14 14:24:06,135 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 431 transitions. Word has length 82 [2022-07-14 14:24:06,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:24:06,135 INFO L495 AbstractCegarLoop]: Abstraction has 343 states and 431 transitions. [2022-07-14 14:24:06,135 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) [2022-07-14 14:24:06,135 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 431 transitions. [2022-07-14 14:24:06,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-07-14 14:24:06,136 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:24:06,136 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] [2022-07-14 14:24:06,161 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-07-14 14:24:06,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-07-14 14:24:06,348 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-14 14:24:06,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:24:06,348 INFO L85 PathProgramCache]: Analyzing trace with hash -1367817495, now seen corresponding path program 3 times [2022-07-14 14:24:06,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:24:06,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982523546] [2022-07-14 14:24:06,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:24:06,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:24:06,419 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-14 14:24:06,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1891036694] [2022-07-14 14:24:06,427 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-14 14:24:06,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:24:06,427 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:24:06,432 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 14:24:06,458 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-07-14 14:24:09,221 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-07-14 14:24:09,221 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 14:24:09,228 INFO L263 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-14 14:24:09,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:24:09,342 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2022-07-14 14:24:09,343 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 14:24:09,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:24:09,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982523546] [2022-07-14 14:24:09,343 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-14 14:24:09,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1891036694] [2022-07-14 14:24:09,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1891036694] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:24:09,344 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:24:09,344 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 14:24:09,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949404235] [2022-07-14 14:24:09,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:24:09,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 14:24:09,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:24:09,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 14:24:09,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-14 14:24:09,346 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) [2022-07-14 14:24:09,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:24:09,428 INFO L93 Difference]: Finished difference Result 343 states and 431 transitions. [2022-07-14 14:24:09,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 14:24:09,429 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 [2022-07-14 14:24:09,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:24:09,431 INFO L225 Difference]: With dead ends: 343 [2022-07-14 14:24:09,431 INFO L226 Difference]: Without dead ends: 342 [2022-07-14 14:24:09,432 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 [2022-07-14 14:24:09,432 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 [2022-07-14 14:24:09,433 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] [2022-07-14 14:24:09,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2022-07-14 14:24:09,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 342. [2022-07-14 14:24:09,445 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) [2022-07-14 14:24:09,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 429 transitions. [2022-07-14 14:24:09,446 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 429 transitions. Word has length 91 [2022-07-14 14:24:09,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:24:09,447 INFO L495 AbstractCegarLoop]: Abstraction has 342 states and 429 transitions. [2022-07-14 14:24:09,447 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) [2022-07-14 14:24:09,447 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 429 transitions. [2022-07-14 14:24:09,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-07-14 14:24:09,450 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:24:09,451 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] [2022-07-14 14:24:09,467 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-07-14 14:24:09,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-07-14 14:24:09,664 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)] === [2022-07-14 14:24:09,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:24:09,665 INFO L85 PathProgramCache]: Analyzing trace with hash -1165389731, now seen corresponding path program 1 times [2022-07-14 14:24:09,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:24:09,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876885349] [2022-07-14 14:24:09,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:24:09,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:24:09,881 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-14 14:24:09,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1857553291] [2022-07-14 14:24:09,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:24:09,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:24:09,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:24:09,892 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 14:24:09,893 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-07-14 14:24:11,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:24:11,362 INFO L263 TraceCheckSpWp]: Trace formula consists of 3825 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-14 14:24:11,366 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:24:11,594 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 0 proven. 159 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2022-07-14 14:24:11,594 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 14:24:11,833 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 0 proven. 159 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2022-07-14 14:24:11,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:24:11,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876885349] [2022-07-14 14:24:11,834 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-14 14:24:11,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1857553291] [2022-07-14 14:24:11,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1857553291] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 14:24:11,834 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-14 14:24:11,834 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2022-07-14 14:24:11,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237721066] [2022-07-14 14:24:11,835 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-14 14:24:11,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-14 14:24:11,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:24:11,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-14 14:24:11,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2022-07-14 14:24:11,836 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) [2022-07-14 14:24:12,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:24:12,008 INFO L93 Difference]: Finished difference Result 465 states and 594 transitions. [2022-07-14 14:24:12,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-14 14:24:12,009 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 [2022-07-14 14:24:12,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:24:12,012 INFO L225 Difference]: With dead ends: 465 [2022-07-14 14:24:12,012 INFO L226 Difference]: Without dead ends: 464 [2022-07-14 14:24:12,012 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 [2022-07-14 14:24:12,013 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 [2022-07-14 14:24:12,013 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] [2022-07-14 14:24:12,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2022-07-14 14:24:12,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 341. [2022-07-14 14:24:12,027 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) [2022-07-14 14:24:12,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 428 transitions. [2022-07-14 14:24:12,030 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 428 transitions. Word has length 196 [2022-07-14 14:24:12,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:24:12,030 INFO L495 AbstractCegarLoop]: Abstraction has 341 states and 428 transitions. [2022-07-14 14:24:12,031 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) [2022-07-14 14:24:12,031 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 428 transitions. [2022-07-14 14:24:12,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2022-07-14 14:24:12,033 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:24:12,033 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] [2022-07-14 14:24:12,065 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-07-14 14:24:12,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-07-14 14:24:12,248 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)] === [2022-07-14 14:24:12,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:24:12,248 INFO L85 PathProgramCache]: Analyzing trace with hash -493453511, now seen corresponding path program 1 times [2022-07-14 14:24:12,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:24:12,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042500979] [2022-07-14 14:24:12,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:24:12,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:24:12,464 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-14 14:24:12,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1975063054] [2022-07-14 14:24:12,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:24:12,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:24:12,465 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:24:12,472 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 14:24:12,498 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-07-14 14:24:14,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:24:14,092 INFO L263 TraceCheckSpWp]: Trace formula consists of 3849 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-14 14:24:14,098 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:24:14,368 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 0 proven. 164 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2022-07-14 14:24:14,368 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 14:24:14,613 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 0 proven. 164 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2022-07-14 14:24:14,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:24:14,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042500979] [2022-07-14 14:24:14,613 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-14 14:24:14,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1975063054] [2022-07-14 14:24:14,614 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1975063054] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 14:24:14,614 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-14 14:24:14,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2022-07-14 14:24:14,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131039388] [2022-07-14 14:24:14,614 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-14 14:24:14,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-07-14 14:24:14,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:24:14,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-07-14 14:24:14,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2022-07-14 14:24:14,615 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) [2022-07-14 14:24:14,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:24:14,806 INFO L93 Difference]: Finished difference Result 750 states and 940 transitions. [2022-07-14 14:24:14,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-14 14:24:14,807 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 [2022-07-14 14:24:14,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:24:14,813 INFO L225 Difference]: With dead ends: 750 [2022-07-14 14:24:14,814 INFO L226 Difference]: Without dead ends: 717 [2022-07-14 14:24:14,815 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 406 GetRequests, 386 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=151, Invalid=311, Unknown=0, NotChecked=0, Total=462 [2022-07-14 14:24:14,816 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 [2022-07-14 14:24:14,817 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] [2022-07-14 14:24:14,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2022-07-14 14:24:14,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 717. [2022-07-14 14:24:14,840 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) [2022-07-14 14:24:14,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 717 states to 717 states and 884 transitions. [2022-07-14 14:24:14,844 INFO L78 Accepts]: Start accepts. Automaton has 717 states and 884 transitions. Word has length 201 [2022-07-14 14:24:14,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:24:14,844 INFO L495 AbstractCegarLoop]: Abstraction has 717 states and 884 transitions. [2022-07-14 14:24:14,845 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) [2022-07-14 14:24:14,845 INFO L276 IsEmpty]: Start isEmpty. Operand 717 states and 884 transitions. [2022-07-14 14:24:14,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 422 [2022-07-14 14:24:14,851 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:24:14,852 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] [2022-07-14 14:24:14,890 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-07-14 14:24:15,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-07-14 14:24:15,074 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)] === [2022-07-14 14:24:15,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:24:15,074 INFO L85 PathProgramCache]: Analyzing trace with hash -339908487, now seen corresponding path program 2 times [2022-07-14 14:24:15,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:24:15,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977336972] [2022-07-14 14:24:15,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:24:15,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:24:15,561 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-14 14:24:15,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1363250332] [2022-07-14 14:24:15,562 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-14 14:24:15,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:24:15,563 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:24:15,565 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 14:24:15,565 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-07-14 14:24:17,410 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-14 14:24:17,410 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 14:24:17,416 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 14:24:17,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:24:17,864 INFO L134 CoverageAnalysis]: Checked inductivity of 1289 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1289 trivial. 0 not checked. [2022-07-14 14:24:17,864 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 14:24:17,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:24:17,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977336972] [2022-07-14 14:24:17,864 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-14 14:24:17,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1363250332] [2022-07-14 14:24:17,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1363250332] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:24:17,865 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:24:17,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 14:24:17,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745353513] [2022-07-14 14:24:17,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:24:17,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 14:24:17,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:24:17,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 14:24:17,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 14:24:17,866 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) [2022-07-14 14:24:17,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:24:17,919 INFO L93 Difference]: Finished difference Result 743 states and 930 transitions. [2022-07-14 14:24:17,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 14:24:17,919 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 [2022-07-14 14:24:17,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:24:17,922 INFO L225 Difference]: With dead ends: 743 [2022-07-14 14:24:17,923 INFO L226 Difference]: Without dead ends: 742 [2022-07-14 14:24:17,924 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 [2022-07-14 14:24:17,924 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 [2022-07-14 14:24:17,924 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] [2022-07-14 14:24:17,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 742 states. [2022-07-14 14:24:17,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 742 to 719. [2022-07-14 14:24:17,980 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) [2022-07-14 14:24:17,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 719 states to 719 states and 886 transitions. [2022-07-14 14:24:17,983 INFO L78 Accepts]: Start accepts. Automaton has 719 states and 886 transitions. Word has length 421 [2022-07-14 14:24:17,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:24:17,984 INFO L495 AbstractCegarLoop]: Abstraction has 719 states and 886 transitions. [2022-07-14 14:24:17,984 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) [2022-07-14 14:24:17,984 INFO L276 IsEmpty]: Start isEmpty. Operand 719 states and 886 transitions. [2022-07-14 14:24:17,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 423 [2022-07-14 14:24:17,990 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:24:17,991 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] [2022-07-14 14:24:18,023 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-07-14 14:24:18,212 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 [2022-07-14 14:24:18,213 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)] === [2022-07-14 14:24:18,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:24:18,213 INFO L85 PathProgramCache]: Analyzing trace with hash -1947228074, now seen corresponding path program 1 times [2022-07-14 14:24:18,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:24:18,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241360228] [2022-07-14 14:24:18,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:24:18,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:24:18,887 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-14 14:24:18,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2017488197] [2022-07-14 14:24:18,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:24:18,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:24:18,894 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:24:18,920 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) [2022-07-14 14:24:18,980 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-07-14 14:24:22,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:24:22,746 INFO L263 TraceCheckSpWp]: Trace formula consists of 9766 conjuncts, 16 conjunts are in the unsatisfiable core [2022-07-14 14:24:22,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:24:23,278 INFO L134 CoverageAnalysis]: Checked inductivity of 1289 backedges. 0 proven. 1150 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2022-07-14 14:24:23,278 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 14:24:23,766 INFO L134 CoverageAnalysis]: Checked inductivity of 1289 backedges. 0 proven. 1150 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2022-07-14 14:24:23,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:24:23,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241360228] [2022-07-14 14:24:23,767 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-14 14:24:23,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2017488197] [2022-07-14 14:24:23,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2017488197] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 14:24:23,767 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-14 14:24:23,768 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 21 [2022-07-14 14:24:23,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531149088] [2022-07-14 14:24:23,768 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-14 14:24:23,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-07-14 14:24:23,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:24:23,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-07-14 14:24:23,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=300, Unknown=0, NotChecked=0, Total=420 [2022-07-14 14:24:23,771 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) [2022-07-14 14:24:24,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:24:24,055 INFO L93 Difference]: Finished difference Result 1036 states and 1285 transitions. [2022-07-14 14:24:24,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-07-14 14:24:24,055 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 [2022-07-14 14:24:24,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:24:24,060 INFO L225 Difference]: With dead ends: 1036 [2022-07-14 14:24:24,060 INFO L226 Difference]: Without dead ends: 1001 [2022-07-14 14:24:24,062 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 [2022-07-14 14:24:24,062 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 [2022-07-14 14:24:24,063 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] [2022-07-14 14:24:24,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1001 states. [2022-07-14 14:24:24,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1001 to 1001. [2022-07-14 14:24:24,096 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) [2022-07-14 14:24:24,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1001 states to 1001 states and 1228 transitions. [2022-07-14 14:24:24,100 INFO L78 Accepts]: Start accepts. Automaton has 1001 states and 1228 transitions. Word has length 422 [2022-07-14 14:24:24,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:24:24,101 INFO L495 AbstractCegarLoop]: Abstraction has 1001 states and 1228 transitions. [2022-07-14 14:24:24,101 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) [2022-07-14 14:24:24,101 INFO L276 IsEmpty]: Start isEmpty. Operand 1001 states and 1228 transitions. [2022-07-14 14:24:24,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 588 [2022-07-14 14:24:24,112 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:24:24,113 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] [2022-07-14 14:24:24,175 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-07-14 14:24:24,327 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 [2022-07-14 14:24:24,327 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)] === [2022-07-14 14:24:24,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:24:24,328 INFO L85 PathProgramCache]: Analyzing trace with hash -286676461, now seen corresponding path program 2 times [2022-07-14 14:24:24,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:24:24,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173176516] [2022-07-14 14:24:24,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:24:24,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:24:25,092 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-14 14:24:25,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1743805952] [2022-07-14 14:24:25,093 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-14 14:24:25,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:24:25,093 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:24:25,094 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) [2022-07-14 14:24:25,095 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-07-14 14:24:28,177 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-14 14:24:28,177 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 14:24:28,186 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 14:24:28,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:24:28,786 INFO L134 CoverageAnalysis]: Checked inductivity of 2606 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2606 trivial. 0 not checked. [2022-07-14 14:24:28,786 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 14:24:28,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:24:28,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173176516] [2022-07-14 14:24:28,786 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-14 14:24:28,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1743805952] [2022-07-14 14:24:28,787 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1743805952] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:24:28,787 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:24:28,787 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 14:24:28,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012445206] [2022-07-14 14:24:28,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:24:28,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 14:24:28,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:24:28,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 14:24:28,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 14:24:28,789 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) [2022-07-14 14:24:28,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:24:28,846 INFO L93 Difference]: Finished difference Result 1001 states and 1228 transitions. [2022-07-14 14:24:28,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 14:24:28,846 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 [2022-07-14 14:24:28,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:24:28,851 INFO L225 Difference]: With dead ends: 1001 [2022-07-14 14:24:28,851 INFO L226 Difference]: Without dead ends: 1000 [2022-07-14 14:24:28,852 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 [2022-07-14 14:24:28,852 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 [2022-07-14 14:24:28,852 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] [2022-07-14 14:24:28,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1000 states. [2022-07-14 14:24:28,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1000 to 1000. [2022-07-14 14:24:28,882 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) [2022-07-14 14:24:28,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1000 states to 1000 states and 1227 transitions. [2022-07-14 14:24:28,886 INFO L78 Accepts]: Start accepts. Automaton has 1000 states and 1227 transitions. Word has length 587 [2022-07-14 14:24:28,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:24:28,887 INFO L495 AbstractCegarLoop]: Abstraction has 1000 states and 1227 transitions. [2022-07-14 14:24:28,887 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) [2022-07-14 14:24:28,887 INFO L276 IsEmpty]: Start isEmpty. Operand 1000 states and 1227 transitions. [2022-07-14 14:24:28,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 599 [2022-07-14 14:24:28,892 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:24:28,893 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] [2022-07-14 14:24:28,938 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-07-14 14:24:29,115 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 [2022-07-14 14:24:29,116 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)] === [2022-07-14 14:24:29,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:24:29,116 INFO L85 PathProgramCache]: Analyzing trace with hash -645700228, now seen corresponding path program 1 times [2022-07-14 14:24:29,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:24:29,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778946434] [2022-07-14 14:24:29,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:24:29,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:24:29,880 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-14 14:24:29,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1237879540] [2022-07-14 14:24:29,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:24:29,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:24:29,881 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:24:29,883 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) [2022-07-14 14:24:29,885 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-07-14 14:24:35,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:24:35,806 INFO L263 TraceCheckSpWp]: Trace formula consists of 14238 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-14 14:24:35,817 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:24:36,385 INFO L134 CoverageAnalysis]: Checked inductivity of 2608 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2606 trivial. 0 not checked. [2022-07-14 14:24:36,385 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 14:24:37,000 INFO L134 CoverageAnalysis]: Checked inductivity of 2608 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2606 trivial. 0 not checked. [2022-07-14 14:24:37,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:24:37,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778946434] [2022-07-14 14:24:37,000 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-14 14:24:37,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1237879540] [2022-07-14 14:24:37,000 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1237879540] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 14:24:37,000 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-14 14:24:37,001 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 9 [2022-07-14 14:24:37,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112354147] [2022-07-14 14:24:37,001 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-14 14:24:37,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-14 14:24:37,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:24:37,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-14 14:24:37,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-07-14 14:24:37,002 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) [2022-07-14 14:24:37,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:24:37,292 INFO L93 Difference]: Finished difference Result 1092 states and 1378 transitions. [2022-07-14 14:24:37,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-14 14:24:37,292 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 [2022-07-14 14:24:37,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:24:37,297 INFO L225 Difference]: With dead ends: 1092 [2022-07-14 14:24:37,297 INFO L226 Difference]: Without dead ends: 1091 [2022-07-14 14:24:37,298 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 [2022-07-14 14:24:37,298 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 350 mSDsluCounter, 535 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-07-14 14:24:37,298 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] [2022-07-14 14:24:37,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1091 states. [2022-07-14 14:24:37,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1091 to 1090. [2022-07-14 14:24:37,335 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) [2022-07-14 14:24:37,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1090 states to 1090 states and 1374 transitions. [2022-07-14 14:24:37,338 INFO L78 Accepts]: Start accepts. Automaton has 1090 states and 1374 transitions. Word has length 598 [2022-07-14 14:24:37,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:24:37,339 INFO L495 AbstractCegarLoop]: Abstraction has 1090 states and 1374 transitions. [2022-07-14 14:24:37,339 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) [2022-07-14 14:24:37,339 INFO L276 IsEmpty]: Start isEmpty. Operand 1090 states and 1374 transitions. [2022-07-14 14:24:37,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 635 [2022-07-14 14:24:37,345 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:24:37,346 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] [2022-07-14 14:24:37,412 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2022-07-14 14:24:37,559 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 [2022-07-14 14:24:37,559 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)] === [2022-07-14 14:24:37,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:24:37,560 INFO L85 PathProgramCache]: Analyzing trace with hash -1564932964, now seen corresponding path program 2 times [2022-07-14 14:24:37,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:24:37,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036671051] [2022-07-14 14:24:37,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:24:37,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:24:38,181 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-14 14:24:38,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2073856703] [2022-07-14 14:24:38,182 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-14 14:24:38,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:24:38,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:24:38,188 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) [2022-07-14 14:24:38,196 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-07-14 14:24:44,846 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-14 14:24:44,846 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 14:24:44,953 INFO L263 TraceCheckSpWp]: Trace formula consists of 14346 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-14 14:24:44,966 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:24:45,624 INFO L134 CoverageAnalysis]: Checked inductivity of 2686 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 2606 trivial. 0 not checked. [2022-07-14 14:24:45,625 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 14:24:46,407 INFO L134 CoverageAnalysis]: Checked inductivity of 2686 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 2630 trivial. 0 not checked. [2022-07-14 14:24:46,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:24:46,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036671051] [2022-07-14 14:24:46,408 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-14 14:24:46,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2073856703] [2022-07-14 14:24:46,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2073856703] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 14:24:46,408 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-14 14:24:46,408 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 21 [2022-07-14 14:24:46,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603562444] [2022-07-14 14:24:46,409 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-14 14:24:46,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-07-14 14:24:46,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:24:46,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-07-14 14:24:46,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2022-07-14 14:24:46,412 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) [2022-07-14 14:24:47,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:24:47,398 INFO L93 Difference]: Finished difference Result 1272 states and 1675 transitions. [2022-07-14 14:24:47,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-07-14 14:24:47,400 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 [2022-07-14 14:24:47,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:24:47,406 INFO L225 Difference]: With dead ends: 1272 [2022-07-14 14:24:47,407 INFO L226 Difference]: Without dead ends: 1271 [2022-07-14 14:24:47,408 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 [2022-07-14 14:24:47,408 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 1173 mSDsluCounter, 584 mSDsCounter, 0 mSdLazyCounter, 984 mSolverCounterSat, 518 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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 [2022-07-14 14:24:47,409 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] [2022-07-14 14:24:47,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1271 states. [2022-07-14 14:24:47,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1271 to 1270. [2022-07-14 14:24:47,471 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) [2022-07-14 14:24:47,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1270 states to 1270 states and 1668 transitions. [2022-07-14 14:24:47,476 INFO L78 Accepts]: Start accepts. Automaton has 1270 states and 1668 transitions. Word has length 634 [2022-07-14 14:24:47,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:24:47,477 INFO L495 AbstractCegarLoop]: Abstraction has 1270 states and 1668 transitions. [2022-07-14 14:24:47,477 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) [2022-07-14 14:24:47,477 INFO L276 IsEmpty]: Start isEmpty. Operand 1270 states and 1668 transitions. [2022-07-14 14:24:47,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 707 [2022-07-14 14:24:47,486 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:24:47,487 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] [2022-07-14 14:24:47,571 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2022-07-14 14:24:47,708 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 [2022-07-14 14:24:47,708 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)] === [2022-07-14 14:24:47,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:24:47,709 INFO L85 PathProgramCache]: Analyzing trace with hash 1223758556, now seen corresponding path program 3 times [2022-07-14 14:24:47,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:24:47,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216835021] [2022-07-14 14:24:47,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:24:47,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:24:48,395 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-14 14:24:48,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [553430419] [2022-07-14 14:24:48,396 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-14 14:24:48,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:24:48,396 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:24:48,402 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) [2022-07-14 14:24:48,403 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-07-14 14:24:53,807 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-07-14 14:24:53,807 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 14:24:53,824 INFO L263 TraceCheckSpWp]: Trace formula consists of 1565 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-14 14:24:53,833 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:24:53,908 INFO L134 CoverageAnalysis]: Checked inductivity of 3166 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 3065 trivial. 0 not checked. [2022-07-14 14:24:53,909 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 14:24:53,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:24:53,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216835021] [2022-07-14 14:24:53,909 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-14 14:24:53,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [553430419] [2022-07-14 14:24:53,910 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [553430419] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:24:53,910 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:24:53,910 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 14:24:53,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135848919] [2022-07-14 14:24:53,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:24:53,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 14:24:53,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:24:53,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 14:24:53,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-14 14:24:53,913 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) [2022-07-14 14:24:54,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:24:54,092 INFO L93 Difference]: Finished difference Result 1587 states and 2155 transitions. [2022-07-14 14:24:54,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 14:24:54,093 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 [2022-07-14 14:24:54,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:24:54,100 INFO L225 Difference]: With dead ends: 1587 [2022-07-14 14:24:54,101 INFO L226 Difference]: Without dead ends: 1586 [2022-07-14 14:24:54,102 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 [2022-07-14 14:24:54,103 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 [2022-07-14 14:24:54,103 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] [2022-07-14 14:24:54,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1586 states. [2022-07-14 14:24:54,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1586 to 1513. [2022-07-14 14:24:54,203 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) [2022-07-14 14:24:54,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2055 transitions. [2022-07-14 14:24:54,209 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2055 transitions. Word has length 706 [2022-07-14 14:24:54,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:24:54,210 INFO L495 AbstractCegarLoop]: Abstraction has 1513 states and 2055 transitions. [2022-07-14 14:24:54,211 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) [2022-07-14 14:24:54,211 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2055 transitions. [2022-07-14 14:24:54,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 708 [2022-07-14 14:24:54,221 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:24:54,221 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] [2022-07-14 14:24:54,286 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-07-14 14:24:54,435 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 [2022-07-14 14:24:54,436 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)] === [2022-07-14 14:24:54,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:24:54,436 INFO L85 PathProgramCache]: Analyzing trace with hash 325074127, now seen corresponding path program 1 times [2022-07-14 14:24:54,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:24:54,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857998718] [2022-07-14 14:24:54,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:24:54,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:24:55,295 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-14 14:24:55,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [72358775] [2022-07-14 14:24:55,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:24:55,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:24:55,296 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:24:55,297 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) [2022-07-14 14:24:55,300 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-07-14 14:25:02,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:25:02,972 INFO L263 TraceCheckSpWp]: Trace formula consists of 14564 conjuncts, 23 conjunts are in the unsatisfiable core [2022-07-14 14:25:02,982 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:25:03,816 INFO L134 CoverageAnalysis]: Checked inductivity of 3157 backedges. 0 proven. 551 refuted. 0 times theorem prover too weak. 2606 trivial. 0 not checked. [2022-07-14 14:25:03,816 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 14:25:04,864 INFO L134 CoverageAnalysis]: Checked inductivity of 3157 backedges. 0 proven. 371 refuted. 0 times theorem prover too weak. 2786 trivial. 0 not checked. [2022-07-14 14:25:04,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:25:04,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857998718] [2022-07-14 14:25:04,865 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-14 14:25:04,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [72358775] [2022-07-14 14:25:04,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [72358775] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 14:25:04,866 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-14 14:25:04,866 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 23] total 45 [2022-07-14 14:25:04,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54702008] [2022-07-14 14:25:04,867 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-14 14:25:04,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-07-14 14:25:04,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:25:04,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-07-14 14:25:04,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=551, Invalid=1519, Unknown=0, NotChecked=0, Total=2070 [2022-07-14 14:25:04,871 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) [2022-07-14 14:25:07,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:25:07,848 INFO L93 Difference]: Finished difference Result 2230 states and 3223 transitions. [2022-07-14 14:25:07,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-07-14 14:25:07,849 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 [2022-07-14 14:25:07,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:25:07,862 INFO L225 Difference]: With dead ends: 2230 [2022-07-14 14:25:07,862 INFO L226 Difference]: Without dead ends: 2229 [2022-07-14 14:25:07,866 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 [2022-07-14 14:25:07,867 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 [2022-07-14 14:25:07,867 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] [2022-07-14 14:25:07,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2229 states. [2022-07-14 14:25:08,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2229 to 2209. [2022-07-14 14:25:08,057 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) [2022-07-14 14:25:08,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2209 states to 2209 states and 3183 transitions. [2022-07-14 14:25:08,066 INFO L78 Accepts]: Start accepts. Automaton has 2209 states and 3183 transitions. Word has length 707 [2022-07-14 14:25:08,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:25:08,068 INFO L495 AbstractCegarLoop]: Abstraction has 2209 states and 3183 transitions. [2022-07-14 14:25:08,068 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) [2022-07-14 14:25:08,068 INFO L276 IsEmpty]: Start isEmpty. Operand 2209 states and 3183 transitions. [2022-07-14 14:25:08,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 852 [2022-07-14 14:25:08,083 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:25:08,084 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] [2022-07-14 14:25:08,188 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-07-14 14:25:08,311 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 [2022-07-14 14:25:08,311 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)] === [2022-07-14 14:25:08,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:25:08,312 INFO L85 PathProgramCache]: Analyzing trace with hash -1740083121, now seen corresponding path program 2 times [2022-07-14 14:25:08,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:25:08,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477694654] [2022-07-14 14:25:08,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:25:08,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:25:08,965 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-14 14:25:08,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [733712898] [2022-07-14 14:25:08,966 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-14 14:25:08,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:25:08,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:25:08,968 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) [2022-07-14 14:25:08,968 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-07-14 14:25:17,343 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-14 14:25:17,343 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 14:25:17,454 INFO L263 TraceCheckSpWp]: Trace formula consists of 14996 conjuncts, 47 conjunts are in the unsatisfiable core [2022-07-14 14:25:17,466 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:25:18,936 INFO L134 CoverageAnalysis]: Checked inductivity of 5401 backedges. 0 proven. 2795 refuted. 0 times theorem prover too weak. 2606 trivial. 0 not checked. [2022-07-14 14:25:18,936 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 14:25:20,947 INFO L134 CoverageAnalysis]: Checked inductivity of 5401 backedges. 0 proven. 1871 refuted. 0 times theorem prover too weak. 3530 trivial. 0 not checked. [2022-07-14 14:25:20,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:25:20,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477694654] [2022-07-14 14:25:20,948 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-14 14:25:20,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [733712898] [2022-07-14 14:25:20,948 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [733712898] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 14:25:20,948 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-14 14:25:20,948 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 47] total 93 [2022-07-14 14:25:20,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112318323] [2022-07-14 14:25:20,949 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-14 14:25:20,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 94 states [2022-07-14 14:25:20,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:25:20,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2022-07-14 14:25:20,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2255, Invalid=6487, Unknown=0, NotChecked=0, Total=8742 [2022-07-14 14:25:20,955 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) [2022-07-14 14:25:28,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:25:28,998 INFO L93 Difference]: Finished difference Result 3622 states and 5491 transitions. [2022-07-14 14:25:28,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 140 states. [2022-07-14 14:25:29,000 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 [2022-07-14 14:25:29,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:25:29,019 INFO L225 Difference]: With dead ends: 3622 [2022-07-14 14:25:29,019 INFO L226 Difference]: Without dead ends: 3621 [2022-07-14 14:25:29,029 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1791 GetRequests, 1608 SyntacticMatches, 0 SemanticMatches, 183 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7507 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=10809, Invalid=23231, Unknown=0, NotChecked=0, Total=34040 [2022-07-14 14:25:29,030 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 7765 mSDsluCounter, 1949 mSDsCounter, 0 mSdLazyCounter, 5684 mSolverCounterSat, 4459 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s 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, 3.8s IncrementalHoareTripleChecker+Time [2022-07-14 14:25:29,030 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7775 Valid, 2102 Invalid, 10143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4459 Valid, 5684 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-07-14 14:25:29,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3621 states. [2022-07-14 14:25:29,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3621 to 3601. [2022-07-14 14:25:29,317 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) [2022-07-14 14:25:29,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3601 states to 3601 states and 5439 transitions. [2022-07-14 14:25:29,329 INFO L78 Accepts]: Start accepts. Automaton has 3601 states and 5439 transitions. Word has length 851 [2022-07-14 14:25:29,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:25:29,331 INFO L495 AbstractCegarLoop]: Abstraction has 3601 states and 5439 transitions. [2022-07-14 14:25:29,332 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) [2022-07-14 14:25:29,332 INFO L276 IsEmpty]: Start isEmpty. Operand 3601 states and 5439 transitions. [2022-07-14 14:25:29,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1140 [2022-07-14 14:25:29,355 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:25:29,355 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] [2022-07-14 14:25:29,454 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-07-14 14:25:29,573 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 [2022-07-14 14:25:29,574 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)] === [2022-07-14 14:25:29,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:25:29,574 INFO L85 PathProgramCache]: Analyzing trace with hash 812373839, now seen corresponding path program 3 times [2022-07-14 14:25:29,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:25:29,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358062431] [2022-07-14 14:25:29,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:25:29,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:25:30,273 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-14 14:25:30,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1450521329] [2022-07-14 14:25:30,274 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-14 14:25:30,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:25:30,274 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:25:30,280 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) [2022-07-14 14:25:30,281 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-07-14 14:25:37,720 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-07-14 14:25:37,720 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 14:25:37,737 INFO L263 TraceCheckSpWp]: Trace formula consists of 1567 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-14 14:25:37,747 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:25:37,809 INFO L134 CoverageAnalysis]: Checked inductivity of 15073 backedges. 452 proven. 0 refuted. 0 times theorem prover too weak. 14621 trivial. 0 not checked. [2022-07-14 14:25:37,809 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 14:25:37,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:25:37,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358062431] [2022-07-14 14:25:37,810 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-14 14:25:37,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1450521329] [2022-07-14 14:25:37,810 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1450521329] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:25:37,810 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:25:37,810 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 14:25:37,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618983870] [2022-07-14 14:25:37,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:25:37,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 14:25:37,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:25:37,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 14:25:37,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-14 14:25:37,812 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) [2022-07-14 14:25:38,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:25:38,372 INFO L93 Difference]: Finished difference Result 6476 states and 9925 transitions. [2022-07-14 14:25:38,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-14 14:25:38,374 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 [2022-07-14 14:25:38,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:25:38,410 INFO L225 Difference]: With dead ends: 6476 [2022-07-14 14:25:38,410 INFO L226 Difference]: Without dead ends: 6475 [2022-07-14 14:25:38,413 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 [2022-07-14 14:25:38,414 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 [2022-07-14 14:25:38,414 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] [2022-07-14 14:25:38,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6475 states. [2022-07-14 14:25:38,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6475 to 6012. [2022-07-14 14:25:38,978 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) [2022-07-14 14:25:39,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6012 states to 6012 states and 9276 transitions. [2022-07-14 14:25:39,004 INFO L78 Accepts]: Start accepts. Automaton has 6012 states and 9276 transitions. Word has length 1139 [2022-07-14 14:25:39,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:25:39,007 INFO L495 AbstractCegarLoop]: Abstraction has 6012 states and 9276 transitions. [2022-07-14 14:25:39,008 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) [2022-07-14 14:25:39,008 INFO L276 IsEmpty]: Start isEmpty. Operand 6012 states and 9276 transitions. [2022-07-14 14:25:39,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1142 [2022-07-14 14:25:39,074 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:25:39,074 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] [2022-07-14 14:25:39,161 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2022-07-14 14:25:39,287 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 [2022-07-14 14:25:39,287 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)] === [2022-07-14 14:25:39,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:25:39,288 INFO L85 PathProgramCache]: Analyzing trace with hash 1701908781, now seen corresponding path program 1 times [2022-07-14 14:25:39,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:25:39,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901607607] [2022-07-14 14:25:39,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:25:39,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:25:40,147 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-14 14:25:40,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [519974437] [2022-07-14 14:25:40,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:25:40,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:25:40,148 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:25:40,149 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) [2022-07-14 14:25:40,150 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-07-14 14:25:49,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:25:49,940 INFO L263 TraceCheckSpWp]: Trace formula consists of 15864 conjuncts, 95 conjunts are in the unsatisfiable core [2022-07-14 14:25:49,955 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:25:53,438 INFO L134 CoverageAnalysis]: Checked inductivity of 15030 backedges. 0 proven. 12424 refuted. 0 times theorem prover too weak. 2606 trivial. 0 not checked. [2022-07-14 14:25:53,438 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 14:25:59,770 INFO L134 CoverageAnalysis]: Checked inductivity of 15030 backedges. 0 proven. 8284 refuted. 0 times theorem prover too weak. 6746 trivial. 0 not checked. [2022-07-14 14:25:59,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:25:59,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901607607] [2022-07-14 14:25:59,770 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-14 14:25:59,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [519974437] [2022-07-14 14:25:59,770 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [519974437] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 14:25:59,770 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-14 14:25:59,771 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [94, 95] total 189 [2022-07-14 14:25:59,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710178340] [2022-07-14 14:25:59,771 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-14 14:25:59,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 190 states [2022-07-14 14:25:59,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:25:59,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 190 interpolants. [2022-07-14 14:25:59,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9119, Invalid=26791, Unknown=0, NotChecked=0, Total=35910 [2022-07-14 14:25:59,782 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) [2022-07-14 14:26:31,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:26:31,278 INFO L93 Difference]: Finished difference Result 11444 states and 18040 transitions. [2022-07-14 14:26:31,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 284 states. [2022-07-14 14:26:31,279 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 [2022-07-14 14:26:31,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:26:31,338 INFO L225 Difference]: With dead ends: 11444 [2022-07-14 14:26:31,338 INFO L226 Difference]: Without dead ends: 11443 [2022-07-14 14:26:31,356 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2467 GetRequests, 2092 SyntacticMatches, 0 SemanticMatches, 375 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32251 ImplicationChecksByTransitivity, 17.9s TimeCoverageRelationStatistics Valid=44649, Invalid=97103, Unknown=0, NotChecked=0, Total=141752 [2022-07-14 14:26:31,356 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 19540 mSDsluCounter, 3337 mSDsCounter, 0 mSdLazyCounter, 10536 mSolverCounterSat, 11461 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s 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 [2022-07-14 14:26:31,357 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] [2022-07-14 14:26:31,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11443 states. [2022-07-14 14:26:32,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11443 to 11388. [2022-07-14 14:26:32,205 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) [2022-07-14 14:26:32,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11388 states to 11388 states and 17916 transitions. [2022-07-14 14:26:32,239 INFO L78 Accepts]: Start accepts. Automaton has 11388 states and 17916 transitions. Word has length 1141 [2022-07-14 14:26:32,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:26:32,241 INFO L495 AbstractCegarLoop]: Abstraction has 11388 states and 17916 transitions. [2022-07-14 14:26:32,242 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) [2022-07-14 14:26:32,242 INFO L276 IsEmpty]: Start isEmpty. Operand 11388 states and 17916 transitions. [2022-07-14 14:26:32,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1718 [2022-07-14 14:26:32,319 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:26:32,320 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] [2022-07-14 14:26:32,439 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2022-07-14 14:26:32,535 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 [2022-07-14 14:26:32,535 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)] === [2022-07-14 14:26:32,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:26:32,536 INFO L85 PathProgramCache]: Analyzing trace with hash -1115136211, now seen corresponding path program 2 times [2022-07-14 14:26:32,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:26:32,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317733910] [2022-07-14 14:26:32,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:26:32,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:26:33,445 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-14 14:26:33,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1670324517] [2022-07-14 14:26:33,446 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-14 14:26:33,446 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:26:33,447 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:26:33,448 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) [2022-07-14 14:26:33,449 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-07-14 14:26:44,039 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-14 14:26:44,039 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 14:26:44,170 INFO L263 TraceCheckSpWp]: Trace formula consists of 17592 conjuncts, 191 conjunts are in the unsatisfiable core [2022-07-14 14:26:44,189 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:26:53,903 INFO L134 CoverageAnalysis]: Checked inductivity of 55062 backedges. 0 proven. 52456 refuted. 0 times theorem prover too weak. 2606 trivial. 0 not checked. [2022-07-14 14:26:53,903 INFO L328 TraceCheckSpWp]: Computing backward predicates...