./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/hard-u_unwindbound20.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5317dae 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/nla-digbench-scaling/hard-u_unwindbound20.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 28cfabe4b70eff8f7baaccb87c67f08c79dbf056ceeb2a0d56109f4b60f10f62 --- Real Ultimate output --- This is Ultimate 0.2.2-?-b5317da-m [2023-02-16 02:21:32,633 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-16 02:21:32,635 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-16 02:21:32,676 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-16 02:21:32,677 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-16 02:21:32,679 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-16 02:21:32,681 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-16 02:21:32,683 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-16 02:21:32,684 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-16 02:21:32,688 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-16 02:21:32,690 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-16 02:21:32,691 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-16 02:21:32,691 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-16 02:21:32,694 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-16 02:21:32,695 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-16 02:21:32,696 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-16 02:21:32,697 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-16 02:21:32,698 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-16 02:21:32,699 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-16 02:21:32,703 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-16 02:21:32,704 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-16 02:21:32,705 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-16 02:21:32,706 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-16 02:21:32,707 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-16 02:21:32,714 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-16 02:21:32,715 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-16 02:21:32,715 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-16 02:21:32,716 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-16 02:21:32,717 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-16 02:21:32,718 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-16 02:21:32,718 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-16 02:21:32,719 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-16 02:21:32,720 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-16 02:21:32,721 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-16 02:21:32,721 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-16 02:21:32,721 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-16 02:21:32,722 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-16 02:21:32,722 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-16 02:21:32,722 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-16 02:21:32,723 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-16 02:21:32,724 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-16 02:21:32,725 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-02-16 02:21:32,753 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-16 02:21:32,753 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-16 02:21:32,754 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-16 02:21:32,754 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-16 02:21:32,755 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-16 02:21:32,755 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-16 02:21:32,755 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-16 02:21:32,756 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-16 02:21:32,756 INFO L138 SettingsManager]: * Use SBE=true [2023-02-16 02:21:32,756 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-16 02:21:32,757 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-16 02:21:32,757 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-16 02:21:32,757 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-16 02:21:32,757 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-16 02:21:32,757 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-16 02:21:32,758 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-16 02:21:32,758 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-16 02:21:32,758 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-16 02:21:32,758 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-16 02:21:32,758 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-16 02:21:32,758 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-16 02:21:32,759 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-16 02:21:32,759 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-16 02:21:32,759 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-16 02:21:32,759 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-16 02:21:32,759 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-16 02:21:32,760 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-16 02:21:32,760 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-16 02:21:32,760 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-16 02:21:32,760 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-16 02:21:32,760 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-16 02:21:32,761 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-16 02:21:32,761 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-16 02:21:32,761 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-16 02:21:32,761 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-16 02:21:32,761 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 28cfabe4b70eff8f7baaccb87c67f08c79dbf056ceeb2a0d56109f4b60f10f62 [2023-02-16 02:21:32,957 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-16 02:21:32,973 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-16 02:21:32,975 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-16 02:21:32,976 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-16 02:21:32,980 INFO L275 PluginConnector]: CDTParser initialized [2023-02-16 02:21:32,981 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/hard-u_unwindbound20.c [2023-02-16 02:21:34,037 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-16 02:21:34,207 INFO L351 CDTParser]: Found 1 translation units. [2023-02-16 02:21:34,208 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/hard-u_unwindbound20.c [2023-02-16 02:21:34,212 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22ab6ade0/1658df5db1804a8c896ef3325c476322/FLAG9641b5ebf [2023-02-16 02:21:34,227 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22ab6ade0/1658df5db1804a8c896ef3325c476322 [2023-02-16 02:21:34,229 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-16 02:21:34,230 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-16 02:21:34,232 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-16 02:21:34,232 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-16 02:21:34,235 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-16 02:21:34,236 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 02:21:34" (1/1) ... [2023-02-16 02:21:34,236 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21e1c13a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 02:21:34, skipping insertion in model container [2023-02-16 02:21:34,237 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 02:21:34" (1/1) ... [2023-02-16 02:21:34,243 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-16 02:21:34,261 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-16 02:21:34,392 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/hard-u_unwindbound20.c[537,550] [2023-02-16 02:21:34,408 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-16 02:21:34,415 INFO L203 MainTranslator]: Completed pre-run [2023-02-16 02:21:34,425 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/hard-u_unwindbound20.c[537,550] [2023-02-16 02:21:34,432 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-16 02:21:34,442 INFO L208 MainTranslator]: Completed translation [2023-02-16 02:21:34,442 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 02:21:34 WrapperNode [2023-02-16 02:21:34,443 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-16 02:21:34,443 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-16 02:21:34,443 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-16 02:21:34,444 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-16 02:21:34,448 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 02:21:34" (1/1) ... [2023-02-16 02:21:34,463 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 02:21:34" (1/1) ... [2023-02-16 02:21:34,485 INFO L138 Inliner]: procedures = 14, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 65 [2023-02-16 02:21:34,486 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-16 02:21:34,487 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-16 02:21:34,487 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-16 02:21:34,487 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-16 02:21:34,494 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 02:21:34" (1/1) ... [2023-02-16 02:21:34,495 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 02:21:34" (1/1) ... [2023-02-16 02:21:34,498 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 02:21:34" (1/1) ... [2023-02-16 02:21:34,499 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 02:21:34" (1/1) ... [2023-02-16 02:21:34,509 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 02:21:34" (1/1) ... [2023-02-16 02:21:34,512 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 02:21:34" (1/1) ... [2023-02-16 02:21:34,519 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 02:21:34" (1/1) ... [2023-02-16 02:21:34,520 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 02:21:34" (1/1) ... [2023-02-16 02:21:34,524 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-16 02:21:34,525 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-16 02:21:34,525 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-16 02:21:34,525 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-16 02:21:34,527 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 02:21:34" (1/1) ... [2023-02-16 02:21:34,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-16 02:21:34,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 02:21:34,562 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) [2023-02-16 02:21:34,587 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 [2023-02-16 02:21:34,603 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-16 02:21:34,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-16 02:21:34,603 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-16 02:21:34,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-16 02:21:34,604 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-02-16 02:21:34,604 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-02-16 02:21:34,656 INFO L235 CfgBuilder]: Building ICFG [2023-02-16 02:21:34,658 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-16 02:21:34,803 INFO L276 CfgBuilder]: Performing block encoding [2023-02-16 02:21:34,808 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-16 02:21:34,808 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2023-02-16 02:21:34,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 02:21:34 BoogieIcfgContainer [2023-02-16 02:21:34,822 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-16 02:21:34,824 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-16 02:21:34,824 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-16 02:21:34,827 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-16 02:21:34,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.02 02:21:34" (1/3) ... [2023-02-16 02:21:34,828 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24f50108 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 02:21:34, skipping insertion in model container [2023-02-16 02:21:34,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 02:21:34" (2/3) ... [2023-02-16 02:21:34,828 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24f50108 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 02:21:34, skipping insertion in model container [2023-02-16 02:21:34,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 02:21:34" (3/3) ... [2023-02-16 02:21:34,830 INFO L112 eAbstractionObserver]: Analyzing ICFG hard-u_unwindbound20.c [2023-02-16 02:21:34,856 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-16 02:21:34,857 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-02-16 02:21:34,919 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-16 02:21:34,942 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=PETRI_NET, 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=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@69207e5d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-16 02:21:34,942 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-02-16 02:21:34,948 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 19 states have internal predecessors, (28), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-02-16 02:21:34,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-02-16 02:21:34,955 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 02:21:34,955 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 02:21:34,956 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 02:21:34,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 02:21:34,964 INFO L85 PathProgramCache]: Analyzing trace with hash -712527539, now seen corresponding path program 1 times [2023-02-16 02:21:34,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 02:21:34,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168532285] [2023-02-16 02:21:34,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:21:34,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 02:21:35,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:21:35,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 02:21:35,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168532285] [2023-02-16 02:21:35,094 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-02-16 02:21:35,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1298065197] [2023-02-16 02:21:35,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:21:35,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 02:21:35,095 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 02:21:35,101 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) [2023-02-16 02:21:35,111 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-16 02:21:35,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:21:35,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 1 conjunts are in the unsatisfiable core [2023-02-16 02:21:35,184 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 02:21:35,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 02:21:35,213 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-16 02:21:35,213 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1298065197] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 02:21:35,214 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 02:21:35,214 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-16 02:21:35,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244160412] [2023-02-16 02:21:35,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 02:21:35,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-02-16 02:21:35,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 02:21:35,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-02-16 02:21:35,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-16 02:21:35,249 INFO L87 Difference]: Start difference. First operand has 28 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 19 states have internal predecessors, (28), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 02:21:35,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 02:21:35,266 INFO L93 Difference]: Finished difference Result 53 states and 87 transitions. [2023-02-16 02:21:35,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-02-16 02:21:35,272 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-02-16 02:21:35,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 02:21:35,278 INFO L225 Difference]: With dead ends: 53 [2023-02-16 02:21:35,278 INFO L226 Difference]: Without dead ends: 24 [2023-02-16 02:21:35,280 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-16 02:21:35,283 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 02:21:35,284 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 02:21:35,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2023-02-16 02:21:35,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2023-02-16 02:21:35,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 15 states have (on average 1.4) internal successors, (21), 16 states have internal predecessors, (21), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-02-16 02:21:35,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 34 transitions. [2023-02-16 02:21:35,321 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 34 transitions. Word has length 10 [2023-02-16 02:21:35,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 02:21:35,322 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 34 transitions. [2023-02-16 02:21:35,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 02:21:35,323 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 34 transitions. [2023-02-16 02:21:35,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-02-16 02:21:35,323 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 02:21:35,323 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 02:21:35,328 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-02-16 02:21:35,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-02-16 02:21:35,525 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 02:21:35,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 02:21:35,526 INFO L85 PathProgramCache]: Analyzing trace with hash -1983932575, now seen corresponding path program 1 times [2023-02-16 02:21:35,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 02:21:35,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465907575] [2023-02-16 02:21:35,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:21:35,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 02:21:35,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:21:35,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 02:21:35,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 02:21:35,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465907575] [2023-02-16 02:21:35,717 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465907575] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 02:21:35,718 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 02:21:35,718 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-16 02:21:35,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246445829] [2023-02-16 02:21:35,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 02:21:35,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-16 02:21:35,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 02:21:35,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-16 02:21:35,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-16 02:21:35,720 INFO L87 Difference]: Start difference. First operand 24 states and 34 transitions. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 02:21:35,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 02:21:35,763 INFO L93 Difference]: Finished difference Result 38 states and 53 transitions. [2023-02-16 02:21:35,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-16 02:21:35,764 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-02-16 02:21:35,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 02:21:35,765 INFO L225 Difference]: With dead ends: 38 [2023-02-16 02:21:35,765 INFO L226 Difference]: Without dead ends: 36 [2023-02-16 02:21:35,766 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-02-16 02:21:35,767 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 15 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 02:21:35,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 106 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 02:21:35,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2023-02-16 02:21:35,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 28. [2023-02-16 02:21:35,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 19 states have internal predecessors, (24), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-02-16 02:21:35,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 37 transitions. [2023-02-16 02:21:35,776 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 37 transitions. Word has length 10 [2023-02-16 02:21:35,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 02:21:35,776 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 37 transitions. [2023-02-16 02:21:35,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 02:21:35,777 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 37 transitions. [2023-02-16 02:21:35,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-02-16 02:21:35,777 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 02:21:35,777 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 02:21:35,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-16 02:21:35,778 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 02:21:35,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 02:21:35,779 INFO L85 PathProgramCache]: Analyzing trace with hash 1787143384, now seen corresponding path program 1 times [2023-02-16 02:21:35,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 02:21:35,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322862801] [2023-02-16 02:21:35,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:21:35,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 02:21:35,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:21:35,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 02:21:35,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322862801] [2023-02-16 02:21:35,794 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-02-16 02:21:35,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [223028118] [2023-02-16 02:21:35,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:21:35,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 02:21:35,795 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 02:21:35,796 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) [2023-02-16 02:21:35,820 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-16 02:21:35,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:21:35,846 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-16 02:21:35,847 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 02:21:35,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 02:21:35,878 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-16 02:21:35,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [223028118] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 02:21:35,879 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 02:21:35,879 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-16 02:21:35,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558841846] [2023-02-16 02:21:35,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 02:21:35,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-16 02:21:35,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 02:21:35,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-16 02:21:35,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-16 02:21:35,881 INFO L87 Difference]: Start difference. First operand 28 states and 37 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 02:21:35,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 02:21:35,895 INFO L93 Difference]: Finished difference Result 44 states and 59 transitions. [2023-02-16 02:21:35,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-16 02:21:35,896 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-02-16 02:21:35,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 02:21:35,897 INFO L225 Difference]: With dead ends: 44 [2023-02-16 02:21:35,897 INFO L226 Difference]: Without dead ends: 30 [2023-02-16 02:21:35,898 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-16 02:21:35,899 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 0 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 02:21:35,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 89 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 02:21:35,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2023-02-16 02:21:35,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2023-02-16 02:21:35,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 20 states have (on average 1.3) internal successors, (26), 21 states have internal predecessors, (26), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-02-16 02:21:35,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 39 transitions. [2023-02-16 02:21:35,906 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 39 transitions. Word has length 12 [2023-02-16 02:21:35,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 02:21:35,906 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 39 transitions. [2023-02-16 02:21:35,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 02:21:35,907 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 39 transitions. [2023-02-16 02:21:35,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-02-16 02:21:35,907 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 02:21:35,908 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 02:21:35,918 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-02-16 02:21:36,113 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 [2023-02-16 02:21:36,113 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 02:21:36,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 02:21:36,114 INFO L85 PathProgramCache]: Analyzing trace with hash 472519838, now seen corresponding path program 1 times [2023-02-16 02:21:36,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 02:21:36,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387269337] [2023-02-16 02:21:36,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:21:36,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 02:21:36,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:21:36,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-02-16 02:21:36,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:21:36,365 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 02:21:36,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 02:21:36,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387269337] [2023-02-16 02:21:36,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387269337] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 02:21:36,366 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 02:21:36,367 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-16 02:21:36,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900691723] [2023-02-16 02:21:36,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 02:21:36,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-16 02:21:36,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 02:21:36,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-16 02:21:36,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-16 02:21:36,370 INFO L87 Difference]: Start difference. First operand 30 states and 39 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-16 02:21:36,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 02:21:36,431 INFO L93 Difference]: Finished difference Result 44 states and 58 transitions. [2023-02-16 02:21:36,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-16 02:21:36,431 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2023-02-16 02:21:36,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 02:21:36,435 INFO L225 Difference]: With dead ends: 44 [2023-02-16 02:21:36,435 INFO L226 Difference]: Without dead ends: 42 [2023-02-16 02:21:36,436 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-02-16 02:21:36,436 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 13 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 02:21:36,437 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 102 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 02:21:36,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2023-02-16 02:21:36,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 34. [2023-02-16 02:21:36,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 24 states have internal predecessors, (29), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-02-16 02:21:36,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 42 transitions. [2023-02-16 02:21:36,444 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 42 transitions. Word has length 15 [2023-02-16 02:21:36,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 02:21:36,445 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 42 transitions. [2023-02-16 02:21:36,445 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-16 02:21:36,445 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 42 transitions. [2023-02-16 02:21:36,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-02-16 02:21:36,446 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 02:21:36,446 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 02:21:36,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-02-16 02:21:36,446 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 02:21:36,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 02:21:36,447 INFO L85 PathProgramCache]: Analyzing trace with hash 838495553, now seen corresponding path program 1 times [2023-02-16 02:21:36,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 02:21:36,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746458617] [2023-02-16 02:21:36,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:21:36,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 02:21:36,457 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-16 02:21:36,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [665816701] [2023-02-16 02:21:36,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:21:36,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 02:21:36,457 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 02:21:36,459 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) [2023-02-16 02:21:36,461 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-16 02:21:36,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:21:36,500 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 22 conjunts are in the unsatisfiable core [2023-02-16 02:21:36,502 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 02:21:36,648 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-16 02:21:36,648 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 02:21:37,249 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-16 02:21:37,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 02:21:37,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746458617] [2023-02-16 02:21:37,249 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-16 02:21:37,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [665816701] [2023-02-16 02:21:37,250 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [665816701] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 02:21:37,250 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-16 02:21:37,250 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7] total 14 [2023-02-16 02:21:37,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697831146] [2023-02-16 02:21:37,250 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-16 02:21:37,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-02-16 02:21:37,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 02:21:37,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-02-16 02:21:37,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2023-02-16 02:21:37,252 INFO L87 Difference]: Start difference. First operand 34 states and 42 transitions. Second operand has 14 states, 12 states have (on average 2.0) internal successors, (24), 11 states have internal predecessors, (24), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4) [2023-02-16 02:21:39,599 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-02-16 02:21:41,605 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-02-16 02:21:43,688 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-02-16 02:21:45,690 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-02-16 02:21:46,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 02:21:46,264 INFO L93 Difference]: Finished difference Result 78 states and 107 transitions. [2023-02-16 02:21:46,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-02-16 02:21:46,265 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 2.0) internal successors, (24), 11 states have internal predecessors, (24), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4) Word has length 20 [2023-02-16 02:21:46,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 02:21:46,267 INFO L225 Difference]: With dead ends: 78 [2023-02-16 02:21:46,267 INFO L226 Difference]: Without dead ends: 63 [2023-02-16 02:21:46,268 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2023-02-16 02:21:46,269 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 92 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 81 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2023-02-16 02:21:46,273 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 86 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 177 Invalid, 4 Unknown, 0 Unchecked, 8.9s Time] [2023-02-16 02:21:46,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2023-02-16 02:21:46,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 61. [2023-02-16 02:21:46,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 37 states have (on average 1.2702702702702702) internal successors, (47), 41 states have internal predecessors, (47), 18 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (16), 14 states have call predecessors, (16), 16 states have call successors, (16) [2023-02-16 02:21:46,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 81 transitions. [2023-02-16 02:21:46,298 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 81 transitions. Word has length 20 [2023-02-16 02:21:46,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 02:21:46,299 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 81 transitions. [2023-02-16 02:21:46,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 2.0) internal successors, (24), 11 states have internal predecessors, (24), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4) [2023-02-16 02:21:46,299 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 81 transitions. [2023-02-16 02:21:46,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-02-16 02:21:46,301 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 02:21:46,301 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 02:21:46,311 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-02-16 02:21:46,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 02:21:46,507 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 02:21:46,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 02:21:46,507 INFO L85 PathProgramCache]: Analyzing trace with hash 414140572, now seen corresponding path program 1 times [2023-02-16 02:21:46,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 02:21:46,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735561108] [2023-02-16 02:21:46,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:21:46,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 02:21:46,519 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-16 02:21:46,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1210136924] [2023-02-16 02:21:46,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:21:46,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 02:21:46,533 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 02:21:46,537 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) [2023-02-16 02:21:46,561 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-02-16 02:21:46,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:21:46,592 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-16 02:21:46,593 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 02:21:46,642 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-02-16 02:21:46,642 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-16 02:21:46,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 02:21:46,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735561108] [2023-02-16 02:21:46,643 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-16 02:21:46,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1210136924] [2023-02-16 02:21:46,643 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1210136924] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 02:21:46,643 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 02:21:46,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-16 02:21:46,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227043063] [2023-02-16 02:21:46,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 02:21:46,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-16 02:21:46,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 02:21:46,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-16 02:21:46,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-02-16 02:21:46,646 INFO L87 Difference]: Start difference. First operand 61 states and 81 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-02-16 02:21:46,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 02:21:46,681 INFO L93 Difference]: Finished difference Result 76 states and 93 transitions. [2023-02-16 02:21:46,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-16 02:21:46,681 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 28 [2023-02-16 02:21:46,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 02:21:46,685 INFO L225 Difference]: With dead ends: 76 [2023-02-16 02:21:46,685 INFO L226 Difference]: Without dead ends: 69 [2023-02-16 02:21:46,685 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-02-16 02:21:46,687 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 1 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 02:21:46,687 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 117 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 02:21:46,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2023-02-16 02:21:46,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2023-02-16 02:21:46,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 43 states have (on average 1.2093023255813953) internal successors, (52), 47 states have internal predecessors, (52), 18 states have call successors, (18), 7 states have call predecessors, (18), 7 states have return successors, (16), 14 states have call predecessors, (16), 16 states have call successors, (16) [2023-02-16 02:21:46,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 86 transitions. [2023-02-16 02:21:46,712 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 86 transitions. Word has length 28 [2023-02-16 02:21:46,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 02:21:46,712 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 86 transitions. [2023-02-16 02:21:46,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-02-16 02:21:46,713 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 86 transitions. [2023-02-16 02:21:46,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-02-16 02:21:46,714 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 02:21:46,714 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 02:21:46,720 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-02-16 02:21:46,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 02:21:46,920 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 02:21:46,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 02:21:46,920 INFO L85 PathProgramCache]: Analyzing trace with hash 415868450, now seen corresponding path program 1 times [2023-02-16 02:21:46,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 02:21:46,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585639179] [2023-02-16 02:21:46,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:21:46,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 02:21:46,933 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-16 02:21:46,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [557808994] [2023-02-16 02:21:46,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:21:46,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 02:21:46,934 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 02:21:46,935 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) [2023-02-16 02:21:46,936 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-02-16 02:21:46,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:21:46,975 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 18 conjunts are in the unsatisfiable core [2023-02-16 02:21:46,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 02:21:47,130 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-02-16 02:21:47,130 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-16 02:21:47,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 02:21:47,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585639179] [2023-02-16 02:21:47,131 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-16 02:21:47,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [557808994] [2023-02-16 02:21:47,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [557808994] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 02:21:47,131 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 02:21:47,131 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-02-16 02:21:47,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748476302] [2023-02-16 02:21:47,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 02:21:47,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-02-16 02:21:47,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 02:21:47,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-02-16 02:21:47,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-02-16 02:21:47,133 INFO L87 Difference]: Start difference. First operand 69 states and 86 transitions. Second operand has 8 states, 8 states have (on average 1.875) internal successors, (15), 7 states have internal predecessors, (15), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-02-16 02:21:47,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 02:21:47,638 INFO L93 Difference]: Finished difference Result 75 states and 91 transitions. [2023-02-16 02:21:47,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-02-16 02:21:47,639 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 7 states have internal predecessors, (15), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 28 [2023-02-16 02:21:47,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 02:21:47,639 INFO L225 Difference]: With dead ends: 75 [2023-02-16 02:21:47,639 INFO L226 Difference]: Without dead ends: 63 [2023-02-16 02:21:47,640 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2023-02-16 02:21:47,640 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 44 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-02-16 02:21:47,641 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 107 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-02-16 02:21:47,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2023-02-16 02:21:47,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2023-02-16 02:21:47,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 40 states have (on average 1.2) internal successors, (48), 43 states have internal predecessors, (48), 15 states have call successors, (15), 7 states have call predecessors, (15), 7 states have return successors, (14), 12 states have call predecessors, (14), 14 states have call successors, (14) [2023-02-16 02:21:47,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 77 transitions. [2023-02-16 02:21:47,651 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 77 transitions. Word has length 28 [2023-02-16 02:21:47,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 02:21:47,652 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 77 transitions. [2023-02-16 02:21:47,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 7 states have internal predecessors, (15), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-02-16 02:21:47,652 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 77 transitions. [2023-02-16 02:21:47,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-02-16 02:21:47,653 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 02:21:47,653 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 02:21:47,667 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-02-16 02:21:47,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 02:21:47,859 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 02:21:47,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 02:21:47,859 INFO L85 PathProgramCache]: Analyzing trace with hash 1040101153, now seen corresponding path program 1 times [2023-02-16 02:21:47,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 02:21:47,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203410769] [2023-02-16 02:21:47,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:21:47,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 02:21:47,870 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-16 02:21:47,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [34631991] [2023-02-16 02:21:47,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:21:47,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 02:21:47,875 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 02:21:47,876 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) [2023-02-16 02:21:47,878 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-02-16 02:21:47,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:21:47,919 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-16 02:21:47,921 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 02:21:47,963 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-02-16 02:21:47,964 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 02:21:48,006 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-02-16 02:21:48,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 02:21:48,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203410769] [2023-02-16 02:21:48,006 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-16 02:21:48,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [34631991] [2023-02-16 02:21:48,007 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [34631991] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 02:21:48,007 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-16 02:21:48,007 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 8 [2023-02-16 02:21:48,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605751427] [2023-02-16 02:21:48,007 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-16 02:21:48,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-02-16 02:21:48,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 02:21:48,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-02-16 02:21:48,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-02-16 02:21:48,009 INFO L87 Difference]: Start difference. First operand 63 states and 77 transitions. Second operand has 8 states, 8 states have (on average 3.625) internal successors, (29), 8 states have internal predecessors, (29), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-02-16 02:21:48,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 02:21:48,114 INFO L93 Difference]: Finished difference Result 134 states and 161 transitions. [2023-02-16 02:21:48,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-02-16 02:21:48,115 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.625) internal successors, (29), 8 states have internal predecessors, (29), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 30 [2023-02-16 02:21:48,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 02:21:48,116 INFO L225 Difference]: With dead ends: 134 [2023-02-16 02:21:48,116 INFO L226 Difference]: Without dead ends: 112 [2023-02-16 02:21:48,119 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-02-16 02:21:48,120 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 34 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-16 02:21:48,120 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 155 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-16 02:21:48,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2023-02-16 02:21:48,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 107. [2023-02-16 02:21:48,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 70 states have (on average 1.1714285714285715) internal successors, (82), 73 states have internal predecessors, (82), 22 states have call successors, (22), 14 states have call predecessors, (22), 14 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2023-02-16 02:21:48,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 124 transitions. [2023-02-16 02:21:48,141 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 124 transitions. Word has length 30 [2023-02-16 02:21:48,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 02:21:48,143 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 124 transitions. [2023-02-16 02:21:48,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.625) internal successors, (29), 8 states have internal predecessors, (29), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-02-16 02:21:48,143 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 124 transitions. [2023-02-16 02:21:48,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-02-16 02:21:48,149 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 02:21:48,149 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 02:21:48,154 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-02-16 02:21:48,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 02:21:48,353 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 02:21:48,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 02:21:48,354 INFO L85 PathProgramCache]: Analyzing trace with hash 2101649637, now seen corresponding path program 1 times [2023-02-16 02:21:48,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 02:21:48,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312265862] [2023-02-16 02:21:48,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:21:48,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 02:21:48,361 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-16 02:21:48,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1974152657] [2023-02-16 02:21:48,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:21:48,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 02:21:48,362 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 02:21:48,363 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) [2023-02-16 02:21:48,377 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-02-16 02:21:48,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:21:48,417 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 7 conjunts are in the unsatisfiable core [2023-02-16 02:21:48,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 02:21:48,489 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 12 proven. 42 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-02-16 02:21:48,489 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 02:21:48,563 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-02-16 02:21:48,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 02:21:48,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312265862] [2023-02-16 02:21:48,563 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-16 02:21:48,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1974152657] [2023-02-16 02:21:48,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1974152657] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 02:21:48,564 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-16 02:21:48,564 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 10 [2023-02-16 02:21:48,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813074413] [2023-02-16 02:21:48,564 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-16 02:21:48,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-02-16 02:21:48,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 02:21:48,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-02-16 02:21:48,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-02-16 02:21:48,566 INFO L87 Difference]: Start difference. First operand 107 states and 124 transitions. Second operand has 10 states, 10 states have (on average 3.6) internal successors, (36), 10 states have internal predecessors, (36), 5 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-02-16 02:21:48,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 02:21:48,728 INFO L93 Difference]: Finished difference Result 199 states and 238 transitions. [2023-02-16 02:21:48,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-02-16 02:21:48,729 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.6) internal successors, (36), 10 states have internal predecessors, (36), 5 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 46 [2023-02-16 02:21:48,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 02:21:48,732 INFO L225 Difference]: With dead ends: 199 [2023-02-16 02:21:48,734 INFO L226 Difference]: Without dead ends: 185 [2023-02-16 02:21:48,735 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2023-02-16 02:21:48,737 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 71 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-16 02:21:48,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 264 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-16 02:21:48,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2023-02-16 02:21:48,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 178. [2023-02-16 02:21:48,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 115 states have (on average 1.182608695652174) internal successors, (136), 122 states have internal predecessors, (136), 40 states have call successors, (40), 22 states have call predecessors, (40), 22 states have return successors, (36), 33 states have call predecessors, (36), 36 states have call successors, (36) [2023-02-16 02:21:48,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 212 transitions. [2023-02-16 02:21:48,765 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 212 transitions. Word has length 46 [2023-02-16 02:21:48,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 02:21:48,765 INFO L495 AbstractCegarLoop]: Abstraction has 178 states and 212 transitions. [2023-02-16 02:21:48,766 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.6) internal successors, (36), 10 states have internal predecessors, (36), 5 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-02-16 02:21:48,766 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 212 transitions. [2023-02-16 02:21:48,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-02-16 02:21:48,766 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 02:21:48,767 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 02:21:48,775 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-02-16 02:21:48,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 02:21:48,972 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 02:21:48,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 02:21:48,973 INFO L85 PathProgramCache]: Analyzing trace with hash 2103377515, now seen corresponding path program 1 times [2023-02-16 02:21:48,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 02:21:48,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910851837] [2023-02-16 02:21:48,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:21:48,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 02:21:48,986 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-16 02:21:48,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1852595710] [2023-02-16 02:21:48,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:21:48,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 02:21:48,987 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 02:21:48,988 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) [2023-02-16 02:21:48,996 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-02-16 02:21:49,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:21:49,063 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 23 conjunts are in the unsatisfiable core [2023-02-16 02:21:49,065 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 02:21:49,335 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 14 proven. 19 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-02-16 02:21:49,336 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 02:21:51,168 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 20 proven. 13 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-02-16 02:21:51,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 02:21:51,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910851837] [2023-02-16 02:21:51,168 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-16 02:21:51,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1852595710] [2023-02-16 02:21:51,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1852595710] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 02:21:51,168 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-16 02:21:51,168 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8] total 15 [2023-02-16 02:21:51,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723050065] [2023-02-16 02:21:51,169 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-16 02:21:51,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-02-16 02:21:51,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 02:21:51,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-02-16 02:21:51,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2023-02-16 02:21:51,170 INFO L87 Difference]: Start difference. First operand 178 states and 212 transitions. Second operand has 15 states, 15 states have (on average 2.4) internal successors, (36), 13 states have internal predecessors, (36), 5 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2023-02-16 02:21:53,275 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-02-16 02:21:55,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 02:21:55,833 INFO L93 Difference]: Finished difference Result 232 states and 285 transitions. [2023-02-16 02:21:55,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-02-16 02:21:55,834 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.4) internal successors, (36), 13 states have internal predecessors, (36), 5 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) Word has length 46 [2023-02-16 02:21:55,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 02:21:55,835 INFO L225 Difference]: With dead ends: 232 [2023-02-16 02:21:55,835 INFO L226 Difference]: Without dead ends: 230 [2023-02-16 02:21:55,836 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 77 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=90, Invalid=330, Unknown=0, NotChecked=0, Total=420 [2023-02-16 02:21:55,837 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 58 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 54 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-02-16 02:21:55,837 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 137 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 297 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2023-02-16 02:21:55,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2023-02-16 02:21:55,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 225. [2023-02-16 02:21:55,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 147 states have (on average 1.1972789115646258) internal successors, (176), 159 states have internal predecessors, (176), 51 states have call successors, (51), 26 states have call predecessors, (51), 26 states have return successors, (47), 39 states have call predecessors, (47), 47 states have call successors, (47) [2023-02-16 02:21:55,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 274 transitions. [2023-02-16 02:21:55,873 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 274 transitions. Word has length 46 [2023-02-16 02:21:55,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 02:21:55,873 INFO L495 AbstractCegarLoop]: Abstraction has 225 states and 274 transitions. [2023-02-16 02:21:55,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.4) internal successors, (36), 13 states have internal predecessors, (36), 5 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2023-02-16 02:21:55,874 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 274 transitions. [2023-02-16 02:21:55,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-02-16 02:21:55,874 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 02:21:55,875 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2023-02-16 02:21:55,879 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-02-16 02:21:56,079 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,SelfDestructingSolverStorable9 [2023-02-16 02:21:56,080 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 02:21:56,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 02:21:56,080 INFO L85 PathProgramCache]: Analyzing trace with hash -246714477, now seen corresponding path program 1 times [2023-02-16 02:21:56,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 02:21:56,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601990423] [2023-02-16 02:21:56,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:21:56,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 02:21:56,087 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-16 02:21:56,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [466869089] [2023-02-16 02:21:56,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:21:56,088 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 02:21:56,088 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 02:21:56,089 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) [2023-02-16 02:21:56,092 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-02-16 02:21:56,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:21:56,251 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 30 conjunts are in the unsatisfiable core [2023-02-16 02:21:56,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 02:21:56,389 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 29 proven. 39 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2023-02-16 02:21:56,389 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 02:21:56,963 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 41 proven. 7 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2023-02-16 02:21:56,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 02:21:56,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601990423] [2023-02-16 02:21:56,964 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-16 02:21:56,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [466869089] [2023-02-16 02:21:56,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [466869089] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 02:21:56,964 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-16 02:21:56,964 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7] total 14 [2023-02-16 02:21:56,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247232350] [2023-02-16 02:21:56,965 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-16 02:21:56,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-02-16 02:21:56,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 02:21:56,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-02-16 02:21:56,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2023-02-16 02:21:56,966 INFO L87 Difference]: Start difference. First operand 225 states and 274 transitions. Second operand has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 11 states have internal predecessors, (32), 6 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (14), 7 states have call predecessors, (14), 6 states have call successors, (14) [2023-02-16 02:22:03,237 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-02-16 02:22:04,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 02:22:04,340 INFO L93 Difference]: Finished difference Result 267 states and 320 transitions. [2023-02-16 02:22:04,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-02-16 02:22:04,341 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 11 states have internal predecessors, (32), 6 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (14), 7 states have call predecessors, (14), 6 states have call successors, (14) Word has length 56 [2023-02-16 02:22:04,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 02:22:04,343 INFO L225 Difference]: With dead ends: 267 [2023-02-16 02:22:04,343 INFO L226 Difference]: Without dead ends: 245 [2023-02-16 02:22:04,344 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 97 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2023-02-16 02:22:04,344 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 27 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2023-02-16 02:22:04,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 248 Invalid, 508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 492 Invalid, 1 Unknown, 0 Unchecked, 7.3s Time] [2023-02-16 02:22:04,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2023-02-16 02:22:04,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 242. [2023-02-16 02:22:04,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 161 states have (on average 1.173913043478261) internal successors, (189), 172 states have internal predecessors, (189), 51 states have call successors, (51), 29 states have call predecessors, (51), 29 states have return successors, (48), 40 states have call predecessors, (48), 48 states have call successors, (48) [2023-02-16 02:22:04,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 288 transitions. [2023-02-16 02:22:04,388 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 288 transitions. Word has length 56 [2023-02-16 02:22:04,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 02:22:04,389 INFO L495 AbstractCegarLoop]: Abstraction has 242 states and 288 transitions. [2023-02-16 02:22:04,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 11 states have internal predecessors, (32), 6 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (14), 7 states have call predecessors, (14), 6 states have call successors, (14) [2023-02-16 02:22:04,389 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 288 transitions. [2023-02-16 02:22:04,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-02-16 02:22:04,391 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 02:22:04,391 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 02:22:04,399 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-02-16 02:22:04,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 02:22:04,597 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 02:22:04,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 02:22:04,597 INFO L85 PathProgramCache]: Analyzing trace with hash 98519191, now seen corresponding path program 1 times [2023-02-16 02:22:04,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 02:22:04,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818058689] [2023-02-16 02:22:04,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:22:04,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 02:22:04,606 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-16 02:22:04,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1467260048] [2023-02-16 02:22:04,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:22:04,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 02:22:04,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 02:22:04,608 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) [2023-02-16 02:22:04,610 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-02-16 02:22:04,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:22:04,736 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 44 conjunts are in the unsatisfiable core [2023-02-16 02:22:04,739 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 02:22:05,466 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 35 proven. 26 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2023-02-16 02:22:05,466 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 02:22:48,913 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse1 (mod |c_ULTIMATE.start_main_~p~0#1| 4294967296)) (.cse0 (mod |c_ULTIMATE.start_main_~d~0#1| 4294967296))) (or (not (= .cse0 (mod (* |c_ULTIMATE.start_main_~p~0#1| |c_ULTIMATE.start_main_~B~0#1|) 4294967296))) (= (mod |c_ULTIMATE.start_main_~A~0#1| 4294967296) (mod (+ (* |c_ULTIMATE.start_main_~B~0#1| |c_ULTIMATE.start_main_~q~0#1|) (* 4294967295 (div .cse0 2)) |c_ULTIMATE.start_main_~r~0#1| (* |c_ULTIMATE.start_main_~B~0#1| (div .cse1 2))) 4294967296)) (= 1 .cse1) (<= .cse0 (mod |c_ULTIMATE.start_main_~r~0#1| 4294967296)))) is different from true [2023-02-16 02:25:19,056 WARN L837 $PredicateComparison]: unable to prove that (forall ((|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502_144| Int) (|aux_div_aux_mod_v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_37_62_73| Int) (|aux_div_aux_mod_v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_36_62_380| Int) (|aux_div_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73| Int) (|aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84| Int) (|aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95| Int) (|aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_37_62_73_84| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502| Int) (|aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502_144| Int) (|aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_36_62_380_835| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120| Int) (|v_ULTIMATE.start_main_~B~0#1_BEFORE_CALL_46| Int) (|v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_29| Int)) (let ((.cse1 (mod (+ (* |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502_144| |v_ULTIMATE.start_main_~B~0#1_BEFORE_CALL_46|) (* 2 |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502_144| |v_ULTIMATE.start_main_~B~0#1_BEFORE_CALL_46|)) 4294967296))) (let ((.cse28 (* |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84| 4294967296)) (.cse26 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502_144| 2)) (.cse27 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502| 4294967296)) (.cse29 (* |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95| 4294967296)) (.cse17 (* |v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_29| |v_ULTIMATE.start_main_~B~0#1_BEFORE_CALL_46|)) (.cse3 (div .cse1 2))) (let ((.cse9 (* .cse3 4294967296)) (.cse14 (* .cse17 4294967296)) (.cse7 (+ .cse26 .cse27 |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502_144| .cse29)) (.cse19 (* |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_37_62_73_84| 9223372039002259456)) (.cse18 (* |aux_div_aux_mod_v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_37_62_73| 9223372039002259456)) (.cse16 (* (* |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95| |v_ULTIMATE.start_main_~B~0#1_BEFORE_CALL_46|) 2147483648)) (.cse0 (* |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_37_62_73_84| 4294967296)) (.cse23 (+ .cse26 .cse27 |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502_144| .cse28 .cse29)) (.cse20 (+ .cse26 |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502_144|)) (.cse8 (* |aux_div_aux_mod_v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_36_62_380| 4294967296)) (.cse15 (* .cse3 4294967295)) (.cse10 (* |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_37_62_73_84| 9223372034707292160)) (.cse11 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120| |v_ULTIMATE.start_main_~B~0#1_BEFORE_CALL_46|)) (.cse12 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97| |v_ULTIMATE.start_main_~B~0#1_BEFORE_CALL_46|)) (.cse13 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108| |v_ULTIMATE.start_main_~B~0#1_BEFORE_CALL_46|)) (.cse21 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108| 2)) (.cse25 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120| 2)) (.cse4 (* (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502_144| |v_ULTIMATE.start_main_~B~0#1_BEFORE_CALL_46|) 4294967295)) (.cse5 (* .cse17 4294967295)) (.cse2 (* |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_36_62_380_835| 4294967296)) (.cse6 (+ .cse26 .cse27 |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502_144|)) (.cse22 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97| 2)) (.cse24 (+ .cse26 .cse27 (* |aux_div_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73| 4294967296) |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502_144| .cse28 .cse29))) (or (< (+ .cse0 .cse1) 0) (< (+ .cse2 4294967295) (+ .cse3 .cse4 .cse5)) (< .cse6 0) (< .cse7 0) (<= 4294967296 (+ (* |aux_div_aux_mod_v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_37_62_73| 4294967296) .cse0 .cse1)) (< (+ .cse8 .cse2 4294967295) (+ .cse9 .cse4 .cse10 .cse11 .cse12 .cse13 .cse14)) (< (+ .cse15 .cse16 (* (* |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84| |v_ULTIMATE.start_main_~B~0#1_BEFORE_CALL_46|) 2147483648) .cse12 (* (* |aux_div_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73| |v_ULTIMATE.start_main_~B~0#1_BEFORE_CALL_46|) 2147483648) .cse17 4294967295) .cse8) (< (+ .cse9 .cse4 .cse18 .cse16 .cse19 .cse12 .cse13 .cse14) (+ .cse8 .cse2 1)) (< .cse20 0) (< .cse6 (+ .cse21 .cse22)) (<= 4294967296 .cse7) (= 1 (+ (* 2 |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502_144|) (* 4294967296 |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502|) |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502_144| (* 4294967296 |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84|) (* 4294967296 |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95|))) (<= 4294967296 .cse6) (< (+ .cse15 .cse18 .cse16 .cse19 .cse1 .cse12 .cse13 .cse17) (+ .cse8 1)) (< (+ .cse18 .cse16 .cse0 .cse1) (+ .cse11 1)) (< .cse23 0) (< .cse24 0) (< .cse6 (+ .cse21 .cse22 .cse25)) (<= 4294967296 .cse23) (<= 4294967296 .cse20) (<= (+ .cse21 .cse22 2) .cse6) (<= (+ .cse22 2) .cse6) (< (+ .cse8 4294967295) (+ .cse15 .cse10 .cse11 .cse12 .cse13 .cse17)) (>= |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502_144| 2) (<= (+ .cse21 .cse22 .cse25 2) .cse6) (< (+ .cse3 .cse4 .cse5 4294967295) (+ .cse1 .cse2)) (< .cse6 .cse22) (> 0 |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502_144|) (<= 4294967296 .cse24)))))) is different from false [2023-02-16 02:25:21,071 WARN L859 $PredicateComparison]: unable to prove that (forall ((|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502_144| Int) (|aux_div_aux_mod_v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_37_62_73| Int) (|aux_div_aux_mod_v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_36_62_380| Int) (|aux_div_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73| Int) (|aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84| Int) (|aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95| Int) (|aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_37_62_73_84| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502| Int) (|aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502_144| Int) (|aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_36_62_380_835| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120| Int) (|v_ULTIMATE.start_main_~B~0#1_BEFORE_CALL_46| Int) (|v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_29| Int)) (let ((.cse1 (mod (+ (* |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502_144| |v_ULTIMATE.start_main_~B~0#1_BEFORE_CALL_46|) (* 2 |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502_144| |v_ULTIMATE.start_main_~B~0#1_BEFORE_CALL_46|)) 4294967296))) (let ((.cse28 (* |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84| 4294967296)) (.cse26 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502_144| 2)) (.cse27 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502| 4294967296)) (.cse29 (* |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95| 4294967296)) (.cse17 (* |v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_29| |v_ULTIMATE.start_main_~B~0#1_BEFORE_CALL_46|)) (.cse3 (div .cse1 2))) (let ((.cse9 (* .cse3 4294967296)) (.cse14 (* .cse17 4294967296)) (.cse7 (+ .cse26 .cse27 |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502_144| .cse29)) (.cse19 (* |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_37_62_73_84| 9223372039002259456)) (.cse18 (* |aux_div_aux_mod_v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_37_62_73| 9223372039002259456)) (.cse16 (* (* |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95| |v_ULTIMATE.start_main_~B~0#1_BEFORE_CALL_46|) 2147483648)) (.cse0 (* |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_37_62_73_84| 4294967296)) (.cse23 (+ .cse26 .cse27 |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502_144| .cse28 .cse29)) (.cse20 (+ .cse26 |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502_144|)) (.cse8 (* |aux_div_aux_mod_v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_36_62_380| 4294967296)) (.cse15 (* .cse3 4294967295)) (.cse10 (* |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_37_62_73_84| 9223372034707292160)) (.cse11 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120| |v_ULTIMATE.start_main_~B~0#1_BEFORE_CALL_46|)) (.cse12 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97| |v_ULTIMATE.start_main_~B~0#1_BEFORE_CALL_46|)) (.cse13 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108| |v_ULTIMATE.start_main_~B~0#1_BEFORE_CALL_46|)) (.cse21 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108| 2)) (.cse25 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120| 2)) (.cse4 (* (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502_144| |v_ULTIMATE.start_main_~B~0#1_BEFORE_CALL_46|) 4294967295)) (.cse5 (* .cse17 4294967295)) (.cse2 (* |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_36_62_380_835| 4294967296)) (.cse6 (+ .cse26 .cse27 |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502_144|)) (.cse22 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97| 2)) (.cse24 (+ .cse26 .cse27 (* |aux_div_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73| 4294967296) |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502_144| .cse28 .cse29))) (or (< (+ .cse0 .cse1) 0) (< (+ .cse2 4294967295) (+ .cse3 .cse4 .cse5)) (< .cse6 0) (< .cse7 0) (<= 4294967296 (+ (* |aux_div_aux_mod_v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_37_62_73| 4294967296) .cse0 .cse1)) (< (+ .cse8 .cse2 4294967295) (+ .cse9 .cse4 .cse10 .cse11 .cse12 .cse13 .cse14)) (< (+ .cse15 .cse16 (* (* |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84| |v_ULTIMATE.start_main_~B~0#1_BEFORE_CALL_46|) 2147483648) .cse12 (* (* |aux_div_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73| |v_ULTIMATE.start_main_~B~0#1_BEFORE_CALL_46|) 2147483648) .cse17 4294967295) .cse8) (< (+ .cse9 .cse4 .cse18 .cse16 .cse19 .cse12 .cse13 .cse14) (+ .cse8 .cse2 1)) (< .cse20 0) (< .cse6 (+ .cse21 .cse22)) (<= 4294967296 .cse7) (= 1 (+ (* 2 |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502_144|) (* 4294967296 |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502|) |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502_144| (* 4294967296 |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84|) (* 4294967296 |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95|))) (<= 4294967296 .cse6) (< (+ .cse15 .cse18 .cse16 .cse19 .cse1 .cse12 .cse13 .cse17) (+ .cse8 1)) (< (+ .cse18 .cse16 .cse0 .cse1) (+ .cse11 1)) (< .cse23 0) (< .cse24 0) (< .cse6 (+ .cse21 .cse22 .cse25)) (<= 4294967296 .cse23) (<= 4294967296 .cse20) (<= (+ .cse21 .cse22 2) .cse6) (<= (+ .cse22 2) .cse6) (< (+ .cse8 4294967295) (+ .cse15 .cse10 .cse11 .cse12 .cse13 .cse17)) (>= |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502_144| 2) (<= (+ .cse21 .cse22 .cse25 2) .cse6) (< (+ .cse3 .cse4 .cse5 4294967295) (+ .cse1 .cse2)) (< .cse6 .cse22) (> 0 |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502_144|) (<= 4294967296 .cse24)))))) is different from true