./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/divbin_unwindbound50.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 574ddb4e 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/divbin_unwindbound50.i -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 462bdab67ac93ddd789186f30bfdfc189629d2959c27ec219da5960b800d2042 --- Real Ultimate output --- This is Ultimate 0.2.2-?-574ddb4 [2023-02-18 17:01:01,607 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-18 17:01:01,608 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-18 17:01:01,637 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-18 17:01:01,638 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-18 17:01:01,638 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-18 17:01:01,639 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-18 17:01:01,640 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-18 17:01:01,641 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-18 17:01:01,642 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-18 17:01:01,642 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-18 17:01:01,643 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-18 17:01:01,643 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-18 17:01:01,644 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-18 17:01:01,646 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-18 17:01:01,646 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-18 17:01:01,648 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-18 17:01:01,649 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-18 17:01:01,650 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-18 17:01:01,651 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-18 17:01:01,652 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-18 17:01:01,653 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-18 17:01:01,653 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-18 17:01:01,654 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-18 17:01:01,656 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-18 17:01:01,656 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-18 17:01:01,656 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-18 17:01:01,656 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-18 17:01:01,657 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-18 17:01:01,657 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-18 17:01:01,657 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-18 17:01:01,658 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-18 17:01:01,658 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-18 17:01:01,659 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-18 17:01:01,659 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-18 17:01:01,660 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-18 17:01:01,660 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-18 17:01:01,660 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-18 17:01:01,661 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-18 17:01:01,661 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-18 17:01:01,662 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-18 17:01:01,662 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-02-18 17:01:01,674 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-18 17:01:01,680 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-18 17:01:01,680 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-18 17:01:01,681 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-18 17:01:01,681 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-18 17:01:01,681 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-18 17:01:01,682 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-18 17:01:01,682 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-18 17:01:01,683 INFO L138 SettingsManager]: * Use SBE=true [2023-02-18 17:01:01,683 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-18 17:01:01,683 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-18 17:01:01,683 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-18 17:01:01,684 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-18 17:01:01,684 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-18 17:01:01,684 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-18 17:01:01,684 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-18 17:01:01,684 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-18 17:01:01,684 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-18 17:01:01,684 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-18 17:01:01,685 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-18 17:01:01,685 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-18 17:01:01,685 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-18 17:01:01,685 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-18 17:01:01,685 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-18 17:01:01,685 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 17:01:01,685 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-18 17:01:01,686 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-18 17:01:01,686 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-18 17:01:01,686 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-18 17:01:01,686 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-18 17:01:01,686 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-18 17:01:01,686 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-18 17:01:01,686 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-18 17:01:01,687 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-18 17:01:01,687 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-18 17:01:01,687 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 462bdab67ac93ddd789186f30bfdfc189629d2959c27ec219da5960b800d2042 [2023-02-18 17:01:01,835 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-18 17:01:01,847 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-18 17:01:01,849 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-18 17:01:01,849 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-18 17:01:01,850 INFO L275 PluginConnector]: CDTParser initialized [2023-02-18 17:01:01,850 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/divbin_unwindbound50.i [2023-02-18 17:01:02,772 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-18 17:01:02,984 INFO L351 CDTParser]: Found 1 translation units. [2023-02-18 17:01:02,985 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/divbin_unwindbound50.i [2023-02-18 17:01:02,989 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ecb3424c8/eb8f9a657e83493c80bad2b19f1abc3b/FLAG03bcdc0ff [2023-02-18 17:01:02,999 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ecb3424c8/eb8f9a657e83493c80bad2b19f1abc3b [2023-02-18 17:01:03,014 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-18 17:01:03,016 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-18 17:01:03,018 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-18 17:01:03,018 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-18 17:01:03,021 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-18 17:01:03,021 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 05:01:03" (1/1) ... [2023-02-18 17:01:03,023 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77806ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 05:01:03, skipping insertion in model container [2023-02-18 17:01:03,023 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 05:01:03" (1/1) ... [2023-02-18 17:01:03,028 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-18 17:01:03,049 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-18 17:01:03,141 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/divbin_unwindbound50.i[950,963] [2023-02-18 17:01:03,149 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 17:01:03,157 INFO L203 MainTranslator]: Completed pre-run [2023-02-18 17:01:03,164 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/divbin_unwindbound50.i[950,963] [2023-02-18 17:01:03,168 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 17:01:03,176 INFO L208 MainTranslator]: Completed translation [2023-02-18 17:01:03,176 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 05:01:03 WrapperNode [2023-02-18 17:01:03,177 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-18 17:01:03,177 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-18 17:01:03,177 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-18 17:01:03,178 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-18 17:01:03,181 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 05:01:03" (1/1) ... [2023-02-18 17:01:03,185 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 05:01:03" (1/1) ... [2023-02-18 17:01:03,194 INFO L138 Inliner]: procedures = 16, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 54 [2023-02-18 17:01:03,196 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-18 17:01:03,197 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-18 17:01:03,197 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-18 17:01:03,197 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-18 17:01:03,202 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 05:01:03" (1/1) ... [2023-02-18 17:01:03,203 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 05:01:03" (1/1) ... [2023-02-18 17:01:03,203 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 05:01:03" (1/1) ... [2023-02-18 17:01:03,204 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 05:01:03" (1/1) ... [2023-02-18 17:01:03,205 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 05:01:03" (1/1) ... [2023-02-18 17:01:03,207 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 05:01:03" (1/1) ... [2023-02-18 17:01:03,208 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 05:01:03" (1/1) ... [2023-02-18 17:01:03,208 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 05:01:03" (1/1) ... [2023-02-18 17:01:03,209 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-18 17:01:03,210 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-18 17:01:03,210 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-18 17:01:03,210 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-18 17:01:03,210 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 05:01:03" (1/1) ... [2023-02-18 17:01:03,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 17:01:03,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 17:01:03,234 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) [2023-02-18 17:01:03,239 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 [2023-02-18 17:01:03,256 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-18 17:01:03,256 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-02-18 17:01:03,257 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-02-18 17:01:03,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-18 17:01:03,257 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-18 17:01:03,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-18 17:01:03,257 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-02-18 17:01:03,257 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-02-18 17:01:03,296 INFO L235 CfgBuilder]: Building ICFG [2023-02-18 17:01:03,297 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-18 17:01:03,407 INFO L276 CfgBuilder]: Performing block encoding [2023-02-18 17:01:03,411 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-18 17:01:03,411 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2023-02-18 17:01:03,413 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 05:01:03 BoogieIcfgContainer [2023-02-18 17:01:03,413 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-18 17:01:03,414 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-18 17:01:03,414 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-18 17:01:03,437 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-18 17:01:03,437 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.02 05:01:03" (1/3) ... [2023-02-18 17:01:03,438 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fbc27a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 05:01:03, skipping insertion in model container [2023-02-18 17:01:03,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 05:01:03" (2/3) ... [2023-02-18 17:01:03,438 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fbc27a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 05:01:03, skipping insertion in model container [2023-02-18 17:01:03,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 05:01:03" (3/3) ... [2023-02-18 17:01:03,439 INFO L112 eAbstractionObserver]: Analyzing ICFG divbin_unwindbound50.i [2023-02-18 17:01:03,451 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-18 17:01:03,485 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-02-18 17:01:03,529 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-18 17:01:03,537 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;@2cc2b9e5, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-18 17:01:03,537 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-02-18 17:01:03,541 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 20 states have (on average 1.5) internal successors, (30), 21 states have internal predecessors, (30), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-18 17:01:03,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-02-18 17:01:03,546 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 17:01:03,546 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 17:01:03,547 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 17:01:03,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 17:01:03,552 INFO L85 PathProgramCache]: Analyzing trace with hash 1267887399, now seen corresponding path program 1 times [2023-02-18 17:01:03,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 17:01:03,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804836993] [2023-02-18 17:01:03,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 17:01:03,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 17:01:03,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 17:01:03,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 17:01:03,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804836993] [2023-02-18 17:01:03,670 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-02-18 17:01:03,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1725291981] [2023-02-18 17:01:03,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 17:01:03,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 17:01:03,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 17:01:03,696 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) [2023-02-18 17:01:03,723 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-18 17:01:03,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 17:01:03,801 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 1 conjunts are in the unsatisfiable core [2023-02-18 17:01:03,804 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 17:01:03,827 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-02-18 17:01:03,827 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-18 17:01:03,828 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1725291981] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 17:01:03,828 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 17:01:03,828 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-18 17:01:03,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666044026] [2023-02-18 17:01:03,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 17:01:03,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-02-18 17:01:03,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 17:01:03,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-02-18 17:01:03,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-18 17:01:03,856 INFO L87 Difference]: Start difference. First operand has 28 states, 20 states have (on average 1.5) internal successors, (30), 21 states have internal predecessors, (30), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-18 17:01:03,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 17:01:03,871 INFO L93 Difference]: Finished difference Result 53 states and 76 transitions. [2023-02-18 17:01:03,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-02-18 17:01:03,872 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 19 [2023-02-18 17:01:03,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 17:01:03,877 INFO L225 Difference]: With dead ends: 53 [2023-02-18 17:01:03,877 INFO L226 Difference]: Without dead ends: 24 [2023-02-18 17:01:03,879 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-18 17:01:03,881 INFO L413 NwaCegarLoop]: 34 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, 34 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 [2023-02-18 17:01:03,882 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 17:01:03,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2023-02-18 17:01:03,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2023-02-18 17:01:03,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 18 states have internal predecessors, (23), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-02-18 17:01:03,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 30 transitions. [2023-02-18 17:01:03,903 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 30 transitions. Word has length 19 [2023-02-18 17:01:03,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 17:01:03,903 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 30 transitions. [2023-02-18 17:01:03,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-18 17:01:03,904 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 30 transitions. [2023-02-18 17:01:03,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-02-18 17:01:03,905 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 17:01:03,905 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 17:01:03,930 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-02-18 17:01:04,110 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 [2023-02-18 17:01:04,110 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 17:01:04,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 17:01:04,111 INFO L85 PathProgramCache]: Analyzing trace with hash 1485611193, now seen corresponding path program 1 times [2023-02-18 17:01:04,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 17:01:04,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12903335] [2023-02-18 17:01:04,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 17:01:04,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 17:01:04,124 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-18 17:01:04,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [107551920] [2023-02-18 17:01:04,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 17:01:04,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 17:01:04,125 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 17:01:04,126 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) [2023-02-18 17:01:04,128 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-18 17:01:04,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 17:01:04,164 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-18 17:01:04,165 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 17:01:04,200 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-02-18 17:01:04,201 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-18 17:01:04,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 17:01:04,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12903335] [2023-02-18 17:01:04,217 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-18 17:01:04,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [107551920] [2023-02-18 17:01:04,217 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [107551920] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 17:01:04,217 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 17:01:04,217 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 17:01:04,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889908503] [2023-02-18 17:01:04,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 17:01:04,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-18 17:01:04,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 17:01:04,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-18 17:01:04,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-18 17:01:04,220 INFO L87 Difference]: Start difference. First operand 24 states and 30 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-02-18 17:01:04,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 17:01:04,232 INFO L93 Difference]: Finished difference Result 38 states and 48 transitions. [2023-02-18 17:01:04,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-18 17:01:04,233 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2023-02-18 17:01:04,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 17:01:04,233 INFO L225 Difference]: With dead ends: 38 [2023-02-18 17:01:04,234 INFO L226 Difference]: Without dead ends: 26 [2023-02-18 17:01:04,234 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-18 17:01:04,235 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 0 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 71 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 [2023-02-18 17:01:04,235 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 71 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 17:01:04,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2023-02-18 17:01:04,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2023-02-18 17:01:04,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 20 states have internal predecessors, (25), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-02-18 17:01:04,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 32 transitions. [2023-02-18 17:01:04,252 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 32 transitions. Word has length 21 [2023-02-18 17:01:04,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 17:01:04,253 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 32 transitions. [2023-02-18 17:01:04,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-02-18 17:01:04,253 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions. [2023-02-18 17:01:04,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-02-18 17:01:04,254 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 17:01:04,254 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 17:01:04,261 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-02-18 17:01:04,459 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,SelfDestructingSolverStorable1 [2023-02-18 17:01:04,460 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 17:01:04,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 17:01:04,460 INFO L85 PathProgramCache]: Analyzing trace with hash -1580975129, now seen corresponding path program 1 times [2023-02-18 17:01:04,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 17:01:04,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736993033] [2023-02-18 17:01:04,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 17:01:04,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 17:01:04,473 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-18 17:01:04,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1839111094] [2023-02-18 17:01:04,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 17:01:04,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 17:01:04,475 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 17:01:04,488 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) [2023-02-18 17:01:04,488 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-18 17:01:04,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 17:01:04,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 23 conjunts are in the unsatisfiable core [2023-02-18 17:01:04,557 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 17:01:04,773 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-02-18 17:01:04,773 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-18 17:01:04,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 17:01:04,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736993033] [2023-02-18 17:01:04,773 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-18 17:01:04,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1839111094] [2023-02-18 17:01:04,774 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1839111094] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 17:01:04,774 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 17:01:04,774 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-02-18 17:01:04,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737172086] [2023-02-18 17:01:04,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 17:01:04,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-02-18 17:01:04,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 17:01:04,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-02-18 17:01:04,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-02-18 17:01:04,776 INFO L87 Difference]: Start difference. First operand 26 states and 32 transitions. Second operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 7 states have internal predecessors, (14), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-18 17:01:04,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 17:01:04,917 INFO L93 Difference]: Finished difference Result 38 states and 47 transitions. [2023-02-18 17:01:04,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-02-18 17:01:04,917 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 7 states have internal predecessors, (14), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 22 [2023-02-18 17:01:04,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 17:01:04,918 INFO L225 Difference]: With dead ends: 38 [2023-02-18 17:01:04,918 INFO L226 Difference]: Without dead ends: 35 [2023-02-18 17:01:04,919 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2023-02-18 17:01:04,920 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 31 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 17:01:04,920 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 122 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 17:01:04,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2023-02-18 17:01:04,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2023-02-18 17:01:04,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 26 states have (on average 1.2692307692307692) internal successors, (33), 27 states have internal predecessors, (33), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-18 17:01:04,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 42 transitions. [2023-02-18 17:01:04,938 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 42 transitions. Word has length 22 [2023-02-18 17:01:04,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 17:01:04,939 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 42 transitions. [2023-02-18 17:01:04,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 7 states have internal predecessors, (14), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-18 17:01:04,939 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 42 transitions. [2023-02-18 17:01:04,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-02-18 17:01:04,940 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 17:01:04,940 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 17:01:04,947 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-02-18 17:01:05,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 17:01:05,145 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 17:01:05,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 17:01:05,146 INFO L85 PathProgramCache]: Analyzing trace with hash 1106421036, now seen corresponding path program 1 times [2023-02-18 17:01:05,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 17:01:05,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420057895] [2023-02-18 17:01:05,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 17:01:05,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 17:01:05,155 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-18 17:01:05,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2001209467] [2023-02-18 17:01:05,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 17:01:05,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 17:01:05,156 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 17:01:05,173 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) [2023-02-18 17:01:05,206 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-02-18 17:01:05,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 17:01:05,243 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-18 17:01:05,244 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 17:01:05,269 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-02-18 17:01:05,269 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 17:01:05,291 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-02-18 17:01:05,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 17:01:05,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420057895] [2023-02-18 17:01:05,308 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-18 17:01:05,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2001209467] [2023-02-18 17:01:05,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2001209467] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 17:01:05,309 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-18 17:01:05,309 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 8 [2023-02-18 17:01:05,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629601597] [2023-02-18 17:01:05,309 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-18 17:01:05,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-02-18 17:01:05,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 17:01:05,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-02-18 17:01:05,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-02-18 17:01:05,310 INFO L87 Difference]: Start difference. First operand 35 states and 42 transitions. Second operand has 8 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-02-18 17:01:05,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 17:01:05,366 INFO L93 Difference]: Finished difference Result 69 states and 88 transitions. [2023-02-18 17:01:05,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-02-18 17:01:05,367 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 24 [2023-02-18 17:01:05,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 17:01:05,370 INFO L225 Difference]: With dead ends: 69 [2023-02-18 17:01:05,370 INFO L226 Difference]: Without dead ends: 57 [2023-02-18 17:01:05,371 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-02-18 17:01:05,372 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 29 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 17:01:05,372 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 139 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 17:01:05,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2023-02-18 17:01:05,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 43. [2023-02-18 17:01:05,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 34 states have (on average 1.2647058823529411) internal successors, (43), 35 states have internal predecessors, (43), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-18 17:01:05,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 52 transitions. [2023-02-18 17:01:05,377 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 52 transitions. Word has length 24 [2023-02-18 17:01:05,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 17:01:05,378 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 52 transitions. [2023-02-18 17:01:05,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-02-18 17:01:05,378 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 52 transitions. [2023-02-18 17:01:05,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-02-18 17:01:05,379 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 17:01:05,379 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 17:01:05,385 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-02-18 17:01:05,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 17:01:05,584 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 17:01:05,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 17:01:05,584 INFO L85 PathProgramCache]: Analyzing trace with hash -450968108, now seen corresponding path program 1 times [2023-02-18 17:01:05,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 17:01:05,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897324562] [2023-02-18 17:01:05,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 17:01:05,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 17:01:05,594 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-18 17:01:05,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [85851755] [2023-02-18 17:01:05,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 17:01:05,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 17:01:05,595 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 17:01:05,596 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) [2023-02-18 17:01:05,598 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-02-18 17:01:05,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 17:01:05,635 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 18 conjunts are in the unsatisfiable core [2023-02-18 17:01:05,637 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 17:01:05,702 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-18 17:01:05,703 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 17:01:05,882 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-02-18 17:01:05,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 17:01:05,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897324562] [2023-02-18 17:01:05,882 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-18 17:01:05,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [85851755] [2023-02-18 17:01:05,883 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [85851755] provided 1 perfect and 1 imperfect interpolant sequences [2023-02-18 17:01:05,883 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-18 17:01:05,883 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 13 [2023-02-18 17:01:05,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665023864] [2023-02-18 17:01:05,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 17:01:05,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-18 17:01:05,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 17:01:05,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-18 17:01:05,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2023-02-18 17:01:05,885 INFO L87 Difference]: Start difference. First operand 43 states and 52 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-02-18 17:01:07,910 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 [1] [2023-02-18 17:01:09,918 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-02-18 17:01:11,932 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-02-18 17:01:14,077 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-02-18 17:01:16,096 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-02-18 17:01:18,105 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 [1] [2023-02-18 17:01:18,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 17:01:18,160 INFO L93 Difference]: Finished difference Result 59 states and 73 transitions. [2023-02-18 17:01:18,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-02-18 17:01:18,161 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 25 [2023-02-18 17:01:18,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 17:01:18,162 INFO L225 Difference]: With dead ends: 59 [2023-02-18 17:01:18,162 INFO L226 Difference]: Without dead ends: 57 [2023-02-18 17:01:18,162 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2023-02-18 17:01:18,163 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 13 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 3 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.2s IncrementalHoareTripleChecker+Time [2023-02-18 17:01:18,163 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 108 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 45 Invalid, 6 Unknown, 0 Unchecked, 12.2s Time] [2023-02-18 17:01:18,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2023-02-18 17:01:18,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 50. [2023-02-18 17:01:18,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 39 states have (on average 1.2564102564102564) internal successors, (49), 41 states have internal predecessors, (49), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2023-02-18 17:01:18,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 60 transitions. [2023-02-18 17:01:18,179 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 60 transitions. Word has length 25 [2023-02-18 17:01:18,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 17:01:18,179 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 60 transitions. [2023-02-18 17:01:18,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-02-18 17:01:18,180 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 60 transitions. [2023-02-18 17:01:18,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-02-18 17:01:18,180 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 17:01:18,180 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 17:01:18,187 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-02-18 17:01:18,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 17:01:18,386 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 17:01:18,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 17:01:18,390 INFO L85 PathProgramCache]: Analyzing trace with hash -452755568, now seen corresponding path program 1 times [2023-02-18 17:01:18,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 17:01:18,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750366846] [2023-02-18 17:01:18,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 17:01:18,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 17:01:18,398 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-18 17:01:18,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1527883048] [2023-02-18 17:01:18,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 17:01:18,399 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 17:01:18,399 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 17:01:18,400 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) [2023-02-18 17:01:18,402 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-02-18 17:01:18,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 17:01:18,434 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 7 conjunts are in the unsatisfiable core [2023-02-18 17:01:18,435 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 17:01:18,445 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-02-18 17:01:18,445 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 17:01:18,464 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-02-18 17:01:18,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 17:01:18,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750366846] [2023-02-18 17:01:18,464 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-18 17:01:18,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1527883048] [2023-02-18 17:01:18,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1527883048] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 17:01:18,465 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-18 17:01:18,465 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 10 [2023-02-18 17:01:18,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666615313] [2023-02-18 17:01:18,465 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-18 17:01:18,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-02-18 17:01:18,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 17:01:18,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-02-18 17:01:18,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-02-18 17:01:18,466 INFO L87 Difference]: Start difference. First operand 50 states and 60 transitions. Second operand has 10 states, 10 states have (on average 3.1) internal successors, (31), 10 states have internal predecessors, (31), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-02-18 17:01:18,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 17:01:18,530 INFO L93 Difference]: Finished difference Result 124 states and 151 transitions. [2023-02-18 17:01:18,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-02-18 17:01:18,530 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.1) internal successors, (31), 10 states have internal predecessors, (31), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 25 [2023-02-18 17:01:18,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 17:01:18,532 INFO L225 Difference]: With dead ends: 124 [2023-02-18 17:01:18,532 INFO L226 Difference]: Without dead ends: 117 [2023-02-18 17:01:18,533 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2023-02-18 17:01:18,533 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 82 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 17:01:18,533 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 146 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 17:01:18,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2023-02-18 17:01:18,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 110. [2023-02-18 17:01:18,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 84 states have (on average 1.2738095238095237) internal successors, (107), 92 states have internal predecessors, (107), 15 states have call successors, (15), 10 states have call predecessors, (15), 10 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-02-18 17:01:18,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 133 transitions. [2023-02-18 17:01:18,550 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 133 transitions. Word has length 25 [2023-02-18 17:01:18,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 17:01:18,551 INFO L495 AbstractCegarLoop]: Abstraction has 110 states and 133 transitions. [2023-02-18 17:01:18,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.1) internal successors, (31), 10 states have internal predecessors, (31), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-02-18 17:01:18,551 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 133 transitions. [2023-02-18 17:01:18,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-02-18 17:01:18,552 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 17:01:18,552 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 17:01:18,558 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-02-18 17:01:18,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 17:01:18,757 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 17:01:18,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 17:01:18,758 INFO L85 PathProgramCache]: Analyzing trace with hash -791365823, now seen corresponding path program 1 times [2023-02-18 17:01:18,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 17:01:18,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296237302] [2023-02-18 17:01:18,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 17:01:18,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 17:01:18,765 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-18 17:01:18,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [364466708] [2023-02-18 17:01:18,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 17:01:18,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 17:01:18,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 17:01:18,767 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) [2023-02-18 17:01:18,769 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-02-18 17:01:18,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 17:01:18,799 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-18 17:01:18,800 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 17:01:18,803 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-02-18 17:01:18,803 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-18 17:01:18,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 17:01:18,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296237302] [2023-02-18 17:01:18,803 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-18 17:01:18,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [364466708] [2023-02-18 17:01:18,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [364466708] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 17:01:18,804 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 17:01:18,804 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 17:01:18,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576057633] [2023-02-18 17:01:18,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 17:01:18,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 17:01:18,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 17:01:18,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 17:01:18,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 17:01:18,805 INFO L87 Difference]: Start difference. First operand 110 states and 133 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-18 17:01:18,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 17:01:18,826 INFO L93 Difference]: Finished difference Result 151 states and 185 transitions. [2023-02-18 17:01:18,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 17:01:18,826 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 31 [2023-02-18 17:01:18,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 17:01:18,827 INFO L225 Difference]: With dead ends: 151 [2023-02-18 17:01:18,827 INFO L226 Difference]: Without dead ends: 96 [2023-02-18 17:01:18,828 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 17:01:18,828 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 0 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 17:01:18,829 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 47 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 17:01:18,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2023-02-18 17:01:18,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2023-02-18 17:01:18,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 74 states have (on average 1.2702702702702702) internal successors, (94), 80 states have internal predecessors, (94), 13 states have call successors, (13), 9 states have call predecessors, (13), 8 states have return successors, (9), 6 states have call predecessors, (9), 9 states have call successors, (9) [2023-02-18 17:01:18,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 116 transitions. [2023-02-18 17:01:18,846 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 116 transitions. Word has length 31 [2023-02-18 17:01:18,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 17:01:18,847 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 116 transitions. [2023-02-18 17:01:18,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-18 17:01:18,847 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 116 transitions. [2023-02-18 17:01:18,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-02-18 17:01:18,848 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 17:01:18,856 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 17:01:18,863 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-02-18 17:01:19,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 17:01:19,062 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 17:01:19,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 17:01:19,062 INFO L85 PathProgramCache]: Analyzing trace with hash -1505101988, now seen corresponding path program 1 times [2023-02-18 17:01:19,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 17:01:19,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243024057] [2023-02-18 17:01:19,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 17:01:19,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 17:01:19,073 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-18 17:01:19,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [684822604] [2023-02-18 17:01:19,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 17:01:19,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 17:01:19,074 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 17:01:19,079 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) [2023-02-18 17:01:19,080 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-02-18 17:01:19,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 17:01:19,157 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 11 conjunts are in the unsatisfiable core [2023-02-18 17:01:19,158 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 17:01:19,191 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-02-18 17:01:19,191 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 17:01:19,244 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-02-18 17:01:19,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 17:01:19,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243024057] [2023-02-18 17:01:19,245 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-18 17:01:19,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [684822604] [2023-02-18 17:01:19,245 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [684822604] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 17:01:19,245 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-18 17:01:19,245 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 9 [2023-02-18 17:01:19,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56020669] [2023-02-18 17:01:19,245 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-18 17:01:19,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-02-18 17:01:19,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 17:01:19,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-02-18 17:01:19,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-02-18 17:01:19,248 INFO L87 Difference]: Start difference. First operand 96 states and 116 transitions. Second operand has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 8 states have internal predecessors, (23), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-02-18 17:01:19,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 17:01:19,349 INFO L93 Difference]: Finished difference Result 111 states and 130 transitions. [2023-02-18 17:01:19,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-02-18 17:01:19,349 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 8 states have internal predecessors, (23), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 31 [2023-02-18 17:01:19,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 17:01:19,350 INFO L225 Difference]: With dead ends: 111 [2023-02-18 17:01:19,351 INFO L226 Difference]: Without dead ends: 91 [2023-02-18 17:01:19,351 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 52 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2023-02-18 17:01:19,353 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 13 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 17:01:19,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 145 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 17:01:19,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2023-02-18 17:01:19,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2023-02-18 17:01:19,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 72 states have (on average 1.2222222222222223) internal successors, (88), 76 states have internal predecessors, (88), 10 states have call successors, (10), 8 states have call predecessors, (10), 8 states have return successors, (9), 6 states have call predecessors, (9), 9 states have call successors, (9) [2023-02-18 17:01:19,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 107 transitions. [2023-02-18 17:01:19,367 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 107 transitions. Word has length 31 [2023-02-18 17:01:19,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 17:01:19,368 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 107 transitions. [2023-02-18 17:01:19,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 8 states have internal predecessors, (23), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-02-18 17:01:19,368 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 107 transitions. [2023-02-18 17:01:19,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-02-18 17:01:19,372 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 17:01:19,372 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 17:01:19,379 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-02-18 17:01:19,577 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,SelfDestructingSolverStorable7 [2023-02-18 17:01:19,578 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 17:01:19,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 17:01:19,578 INFO L85 PathProgramCache]: Analyzing trace with hash 675416052, now seen corresponding path program 1 times [2023-02-18 17:01:19,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 17:01:19,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434743259] [2023-02-18 17:01:19,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 17:01:19,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 17:01:19,588 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-18 17:01:19,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [300227024] [2023-02-18 17:01:19,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 17:01:19,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 17:01:19,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 17:01:19,590 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) [2023-02-18 17:01:19,592 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-02-18 17:01:19,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 17:01:19,638 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 29 conjunts are in the unsatisfiable core [2023-02-18 17:01:19,639 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 17:01:19,725 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-18 17:01:19,725 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 17:01:23,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 17:01:23,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434743259] [2023-02-18 17:01:23,940 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-18 17:01:23,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [300227024] [2023-02-18 17:01:23,940 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [300227024] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 17:01:23,940 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-02-18 17:01:23,941 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-02-18 17:01:23,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121629295] [2023-02-18 17:01:23,941 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-02-18 17:01:23,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-02-18 17:01:23,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 17:01:23,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-02-18 17:01:23,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=226, Unknown=2, NotChecked=0, Total=272 [2023-02-18 17:01:23,942 INFO L87 Difference]: Start difference. First operand 91 states and 107 transitions. Second operand has 12 states, 12 states have (on average 2.25) internal successors, (27), 10 states have internal predecessors, (27), 3 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-18 17:01:25,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 17:01:25,549 INFO L93 Difference]: Finished difference Result 137 states and 164 transitions. [2023-02-18 17:01:25,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-02-18 17:01:25,549 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.25) internal successors, (27), 10 states have internal predecessors, (27), 3 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 34 [2023-02-18 17:01:25,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 17:01:25,550 INFO L225 Difference]: With dead ends: 137 [2023-02-18 17:01:25,550 INFO L226 Difference]: Without dead ends: 132 [2023-02-18 17:01:25,551 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 25 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=93, Invalid=457, Unknown=2, NotChecked=0, Total=552 [2023-02-18 17:01:25,551 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 49 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-02-18 17:01:25,551 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 183 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-02-18 17:01:25,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2023-02-18 17:01:25,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 105. [2023-02-18 17:01:25,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 81 states have (on average 1.1604938271604939) internal successors, (94), 87 states have internal predecessors, (94), 14 states have call successors, (14), 9 states have call predecessors, (14), 9 states have return successors, (13), 8 states have call predecessors, (13), 13 states have call successors, (13) [2023-02-18 17:01:25,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 121 transitions. [2023-02-18 17:01:25,570 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 121 transitions. Word has length 34 [2023-02-18 17:01:25,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 17:01:25,570 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 121 transitions. [2023-02-18 17:01:25,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.25) internal successors, (27), 10 states have internal predecessors, (27), 3 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-18 17:01:25,570 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 121 transitions. [2023-02-18 17:01:25,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-02-18 17:01:25,572 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 17:01:25,572 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 17:01:25,579 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-02-18 17:01:25,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 17:01:25,780 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 17:01:25,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 17:01:25,780 INFO L85 PathProgramCache]: Analyzing trace with hash 886516180, now seen corresponding path program 2 times [2023-02-18 17:01:25,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 17:01:25,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666627096] [2023-02-18 17:01:25,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 17:01:25,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 17:01:25,798 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-18 17:01:25,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [889311462] [2023-02-18 17:01:25,805 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-18 17:01:25,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 17:01:25,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 17:01:25,807 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) [2023-02-18 17:01:25,865 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-02-18 17:01:26,016 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-18 17:01:26,016 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 17:01:26,017 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 20 conjunts are in the unsatisfiable core [2023-02-18 17:01:26,018 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 17:04:10,398 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 11 proven. 7 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-02-18 17:04:10,399 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 17:04:10,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 17:04:10,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666627096] [2023-02-18 17:04:10,584 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-18 17:04:10,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [889311462] [2023-02-18 17:04:10,584 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [889311462] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 17:04:10,584 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-02-18 17:04:10,584 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-02-18 17:04:10,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411898432] [2023-02-18 17:04:10,585 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-02-18 17:04:10,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-02-18 17:04:10,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 17:04:10,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-02-18 17:04:10,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2023-02-18 17:04:10,586 INFO L87 Difference]: Start difference. First operand 105 states and 121 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 9 states have internal predecessors, (28), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-18 17:04:10,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 17:04:10,880 INFO L93 Difference]: Finished difference Result 149 states and 171 transitions. [2023-02-18 17:04:10,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-02-18 17:04:10,880 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 9 states have internal predecessors, (28), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 43 [2023-02-18 17:04:10,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 17:04:10,881 INFO L225 Difference]: With dead ends: 149 [2023-02-18 17:04:10,881 INFO L226 Difference]: Without dead ends: 77 [2023-02-18 17:04:10,881 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2023-02-18 17:04:10,882 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 26 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-18 17:04:10,882 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 109 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-18 17:04:10,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2023-02-18 17:04:10,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2023-02-18 17:04:10,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 60 states have (on average 1.15) internal successors, (69), 64 states have internal predecessors, (69), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (9), 6 states have call predecessors, (9), 9 states have call successors, (9) [2023-02-18 17:04:10,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 88 transitions. [2023-02-18 17:04:10,889 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 88 transitions. Word has length 43 [2023-02-18 17:04:10,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 17:04:10,893 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 88 transitions. [2023-02-18 17:04:10,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 9 states have internal predecessors, (28), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-18 17:04:10,893 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 88 transitions. [2023-02-18 17:04:10,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-02-18 17:04:10,894 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 17:04:10,894 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 17:04:10,905 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-02-18 17:04:11,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-02-18 17:04:11,099 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 17:04:11,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 17:04:11,099 INFO L85 PathProgramCache]: Analyzing trace with hash -2006317561, now seen corresponding path program 3 times [2023-02-18 17:04:11,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 17:04:11,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771780508] [2023-02-18 17:04:11,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 17:04:11,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 17:04:11,106 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-18 17:04:11,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [320014113] [2023-02-18 17:04:11,107 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-18 17:04:11,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 17:04:11,107 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 17:04:11,122 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 17:04:11,123 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-02-18 17:04:15,285 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-02-18 17:04:15,286 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 17:04:15,289 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 47 conjunts are in the unsatisfiable core [2023-02-18 17:04:15,291 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 17:04:36,053 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 9 proven. 21 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-02-18 17:04:36,053 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 17:04:50,733 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse0 (mod |c_ULTIMATE.start_main_~b~0#1| 4294967296))) (or (= .cse0 (mod |c_ULTIMATE.start_main_~B~0#1| 4294967296)) (let ((.cse1 (div .cse0 2)) (.cse55 (< .cse0 0)) (.cse16 (= 0 (mod |c_ULTIMATE.start_main_~b~0#1| 2)))) (let ((.cse15 (and .cse55 (not .cse16))) (.cse17 (not .cse55)) (.cse43 (* 2 .cse1 |c_ULTIMATE.start_main_~q~0#1|)) (.cse34 (* .cse1 4294967295)) (.cse14 (mod |c_ULTIMATE.start_main_~r~0#1| 4294967296)) (.cse4 (mod |c_ULTIMATE.start_main_~A~0#1| 4294967296)) (.cse41 (* 4294967295 .cse1))) (and (or (>= 0 2) (and (let ((.cse5 (div .cse0 4))) (or (not (= (mod .cse1 2) 0)) (forall ((|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94| Int) (|aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94_96_107_119| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94_96_107| Int) (|aux_div_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94_96_107_119_591| Int) (|aux_div_v_ULTIMATE.start_main_~b~0#1_43_50| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94_96| Int) (|aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72| Int)) (let ((.cse3 (+ (* (+ (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94| (- 4294967296)) .cse5 (* |aux_div_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61| (- 2147483648)) (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94_96_107_119_591| (- 4294967296)) (* |aux_div_v_ULTIMATE.start_main_~b~0#1_43_50| (- 2147483648)) (* |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72| (- 2147483648))) 2) 0))) (let ((.cse6 (+ (* |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83| (- 4294967296)) (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94_96_107_119| (- 2)) (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94_96_107| (- 2)) (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94_96_107_119_591| 8589934592) (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94_96| (- 2)) .cse3))) (let ((.cse12 (+ (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94_96_107_119| 2) .cse6))) (let ((.cse11 (+ (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94_96_107| 2) .cse12))) (let ((.cse2 (+ .cse11 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94_96| 2)))) (let ((.cse8 (+ (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94| 8589934592) .cse2))) (let ((.cse13 (+ .cse8 (* |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83| 4294967296)))) (let ((.cse10 (+ .cse13 (* |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72| 4294967296)))) (let ((.cse9 (+ (* |aux_div_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61| 4294967296) .cse10)) (.cse7 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94| 4294967296))) (or (> 0 .cse2) (>= .cse3 8589934592) (= .cse4 (mod (+ (* 4 |c_ULTIMATE.start_main_~q~0#1| |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94_96|) |c_ULTIMATE.start_main_~r~0#1| (* 2 |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94_96|) (* 4294967294 .cse5)) 4294967296)) (>= .cse6 2) (< (* (+ |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94| |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94_96_107_119_591|) 4294967296) (+ (* (mod (+ (* .cse5 4294967294) |c_ULTIMATE.start_main_~r~0#1|) 4294967296) (- 1)) (+ (* |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83| 2147483648) (+ (+ |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94_96_107| |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94_96|) .cse7)))) (>= .cse8 4294967296) (> 0 .cse9) (> 0 .cse10) (> 0 .cse11) (>= .cse2 8589934592) (> 0 .cse3) (> 0 .cse12) (>= .cse13 4294967296) (> 0 .cse8) (not (>= .cse14 .cse9)) (> 0 .cse13) (>= .cse10 4294967296) (>= .cse9 4294967296) (> 0 .cse6) (< .cse7 (+ (+ (+ (+ |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94_96_107| |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94_96_107_119|) |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94_96|) .cse7) (- 4294967295))) (>= .cse12 2) (>= .cse11 2)))))))))))) (not (= .cse4 (mod (+ |c_ULTIMATE.start_main_~r~0#1| (* 4 .cse5 |c_ULTIMATE.start_main_~q~0#1|)) 4294967296))) .cse15)) (let ((.cse18 (+ .cse1 1))) (let ((.cse23 (div .cse18 2))) (or .cse16 .cse17 (not (= (mod .cse18 2) 0)) (forall ((|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94| Int) (|aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94_96_107_119| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94_96_107| Int) (|aux_div_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94_96_107_119_591| Int) (|aux_div_v_ULTIMATE.start_main_~b~0#1_43_50| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94_96| Int) (|aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72| Int)) (let ((.cse20 (+ (* (+ (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94| (- 4294967296)) (* |aux_div_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61| (- 2147483648)) (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94_96_107_119_591| (- 4294967296)) (* |aux_div_v_ULTIMATE.start_main_~b~0#1_43_50| (- 2147483648)) (* |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72| (- 2147483648)) .cse23) 2) 0))) (let ((.cse26 (+ (* |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83| (- 4294967296)) (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94_96_107_119| (- 2)) (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94_96_107| (- 2)) (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94_96_107_119_591| 8589934592) (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94_96| (- 2)) .cse20))) (let ((.cse19 (+ (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94_96_107_119| 2) .cse26))) (let ((.cse28 (+ (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94_96_107| 2) .cse19))) (let ((.cse27 (+ .cse28 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94_96| 2)))) (let ((.cse29 (+ (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94| 8589934592) .cse27))) (let ((.cse25 (+ .cse29 (* |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83| 4294967296)))) (let ((.cse22 (+ .cse25 (* |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72| 4294967296)))) (let ((.cse21 (+ (* |aux_div_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61| 4294967296) .cse22)) (.cse24 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94| 4294967296))) (or (>= .cse19 2) (> 0 .cse20) (> 0 .cse21) (>= .cse22 4294967296) (>= .cse20 8589934592) (not (>= .cse14 .cse21)) (< (* (+ |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94| |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94_96_107_119_591|) 4294967296) (+ (* (mod (+ (* .cse23 4294967294) |c_ULTIMATE.start_main_~r~0#1|) 4294967296) (- 1)) (+ (* |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83| 2147483648) (+ (+ |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94_96_107| |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94_96|) .cse24)))) (> 0 .cse25) (> 0 .cse26) (= .cse4 (mod (+ (* 4 |c_ULTIMATE.start_main_~q~0#1| |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94_96|) (* 4294967294 .cse23) |c_ULTIMATE.start_main_~r~0#1| (* 2 |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94_96|)) 4294967296)) (> 0 .cse27) (>= .cse28 2) (>= .cse27 8589934592) (>= .cse26 2) (> 0 .cse19) (> 0 .cse22) (> 0 .cse29) (>= .cse29 4294967296) (> 0 .cse28) (>= .cse21 4294967296) (>= .cse25 4294967296) (< .cse24 (+ (+ (+ (+ |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94_96_107| |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94_96_107_119|) |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94_96|) .cse24) (- 4294967295)))))))))))))) (not (= .cse4 (mod (+ (* 4 .cse23 |c_ULTIMATE.start_main_~q~0#1|) |c_ULTIMATE.start_main_~r~0#1|) 4294967296)))))))) (or (forall ((|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94| Int) (|aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94_96_107_119| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94_96_107| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94_96_107_119_591_152| Int) (|aux_div_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94_96_107_119_591| Int) (|aux_div_v_ULTIMATE.start_main_~b~0#1_43_50| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94_96| Int) (|aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72| Int)) (let ((.cse32 (+ (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94| (- 8589934592)) (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94_96_107_119_591_152| (- 4294967296)) (* |aux_div_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61| (- 4294967296)) (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94_96_107_119_591| (- 8589934592)) (* |aux_div_v_ULTIMATE.start_main_~b~0#1_43_50| (- 4294967296)) .cse1 (* |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72| (- 4294967296))))) (let ((.cse40 (+ .cse32 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94_96_107_119_591_152| 4294967296)))) (let ((.cse39 (+ (* |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83| (- 4294967296)) (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94_96_107_119| (- 2)) (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94_96_107| (- 2)) (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94_96_107_119_591| 8589934592) (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94_96| (- 2)) .cse40))) (let ((.cse30 (+ (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94_96_107_119| 2) .cse39))) (let ((.cse36 (+ (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94_96_107| 2) .cse30))) (let ((.cse37 (+ .cse36 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94_96| 2)))) (let ((.cse38 (+ (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94| 8589934592) .cse37))) (let ((.cse33 (+ .cse38 (* |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83| 4294967296)))) (let ((.cse42 (+ .cse33 (* |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72| 4294967296)))) (let ((.cse31 (+ (* |aux_div_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61| 4294967296) .cse42)) (.cse35 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94| 4294967296))) (or (>= .cse30 2) (not (>= .cse14 .cse31)) (> 0 .cse32) (>= .cse33 4294967296) (< (* (+ |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94| |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94_96_107_119_591|) 4294967296) (+ (* (mod (+ .cse34 |c_ULTIMATE.start_main_~r~0#1|) 4294967296) (- 1)) (+ (* |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83| 2147483648) (+ (+ |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94_96_107| |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94_96|) .cse35)))) (>= .cse36 2) (>= .cse37 8589934592) (> 0 .cse37) (>= .cse38 4294967296) (> 0 .cse33) (>= .cse39 2) (>= .cse40 8589934592) (= .cse4 (mod (+ (* 4 |c_ULTIMATE.start_main_~q~0#1| |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94_96|) .cse41 |c_ULTIMATE.start_main_~r~0#1| (* 2 |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94_96|)) 4294967296)) (> 0 .cse38) (> 0 .cse30) (>= .cse32 4294967296) (> 0 .cse31) (> 0 .cse39) (>= .cse31 4294967296) (>= .cse42 4294967296) (< .cse35 (+ (+ (+ (+ |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94_96_107| |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94_96_107_119|) |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94_96|) .cse35) (- 4294967295))) (> 0 .cse36) (> 0 .cse40) (> 0 .cse42))))))))))))) (not (= .cse4 (mod (+ .cse43 |c_ULTIMATE.start_main_~r~0#1|) 4294967296))) .cse15) (or .cse16 .cse17 (not (= .cse4 (mod (+ .cse43 (* 2 |c_ULTIMATE.start_main_~q~0#1|) |c_ULTIMATE.start_main_~r~0#1|) 4294967296))) (forall ((|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94| Int) (|aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94_96_107_119| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94_96_107| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94_96_107_119_591_152| Int) (|aux_div_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94_96_107_119_591| Int) (|aux_div_v_ULTIMATE.start_main_~b~0#1_43_50| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94_96| Int) (|aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72| Int)) (let ((.cse46 (+ (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94| (- 8589934592)) (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94_96_107_119_591_152| (- 4294967296)) (* |aux_div_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61| (- 4294967296)) (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94_96_107_119_591| (- 8589934592)) (* |aux_div_v_ULTIMATE.start_main_~b~0#1_43_50| (- 4294967296)) .cse1 (* |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72| (- 4294967296)) 1))) (let ((.cse48 (+ .cse46 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94_96_107_119_591_152| 4294967296)))) (let ((.cse53 (+ (* |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83| (- 4294967296)) (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94_96_107_119| (- 2)) (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94_96_107| (- 2)) (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94_96_107_119_591| 8589934592) (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94_96| (- 2)) .cse48))) (let ((.cse52 (+ (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94_96_107_119| 2) .cse53))) (let ((.cse47 (+ (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94_96_107| 2) .cse52))) (let ((.cse49 (+ .cse47 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94_96| 2)))) (let ((.cse54 (+ (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94| 8589934592) .cse49))) (let ((.cse51 (+ .cse54 (* |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83| 4294967296)))) (let ((.cse45 (+ .cse51 (* |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72| 4294967296)))) (let ((.cse44 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94| 4294967296)) (.cse50 (+ (* |aux_div_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61| 4294967296) .cse45))) (or (< (* (+ |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94| |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94_96_107_119_591|) 4294967296) (+ (* (mod (+ .cse34 |c_ULTIMATE.start_main_~r~0#1| 4294967295) 4294967296) (- 1)) (+ (* |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83| 2147483648) (+ (+ |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94_96_107| |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94_96|) .cse44)))) (> 0 .cse45) (> 0 .cse46) (> 0 .cse47) (>= .cse48 8589934592) (> 0 .cse48) (>= .cse49 8589934592) (>= .cse45 4294967296) (not (>= .cse14 .cse50)) (>= .cse47 2) (>= .cse50 4294967296) (>= .cse51 4294967296) (= .cse4 (mod (+ (* 4 |c_ULTIMATE.start_main_~q~0#1| |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94_96|) .cse41 |c_ULTIMATE.start_main_~r~0#1| (* 2 |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94_96|) 4294967295) 4294967296)) (> 0 .cse52) (>= .cse53 2) (> 0 .cse53) (> 0 .cse51) (> 0 .cse49) (>= .cse52 2) (> 0 .cse54) (>= .cse46 4294967296) (< .cse44 (+ (+ (+ (+ |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94_96_107| |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94_96_107_119|) |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_43_50_61_72_83_94_96|) .cse44) (- 4294967295))) (> 0 .cse50) (>= .cse54 4294967296))))))))))))))))))) is different from true [2023-02-18 17:04:51,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 17:04:51,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771780508] [2023-02-18 17:04:51,074 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-18 17:04:51,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [320014113] [2023-02-18 17:04:51,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [320014113] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 17:04:51,075 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-02-18 17:04:51,075 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2023-02-18 17:04:51,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047435630] [2023-02-18 17:04:51,076 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-02-18 17:04:51,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-02-18 17:04:51,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 17:04:51,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-02-18 17:04:51,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=462, Unknown=2, NotChecked=44, Total=600 [2023-02-18 17:04:51,077 INFO L87 Difference]: Start difference. First operand 77 states and 88 transitions. Second operand has 17 states, 17 states have (on average 2.176470588235294) internal successors, (37), 15 states have internal predecessors, (37), 4 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2023-02-18 17:05:02,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 17:05:02,189 INFO L93 Difference]: Finished difference Result 90 states and 102 transitions. [2023-02-18 17:05:02,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-02-18 17:05:02,190 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.176470588235294) internal successors, (37), 15 states have internal predecessors, (37), 4 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 46 [2023-02-18 17:05:02,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 17:05:02,190 INFO L225 Difference]: With dead ends: 90 [2023-02-18 17:05:02,190 INFO L226 Difference]: Without dead ends: 88 [2023-02-18 17:05:02,191 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 37 SyntacticMatches, 3 SemanticMatches, 30 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 20.1s TimeCoverageRelationStatistics Valid=141, Invalid=790, Unknown=3, NotChecked=58, Total=992 [2023-02-18 17:05:02,191 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 35 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 419 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2023-02-18 17:05:02,191 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 318 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 419 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2023-02-18 17:05:02,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2023-02-18 17:05:02,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 82. [2023-02-18 17:05:02,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 63 states have (on average 1.1428571428571428) internal successors, (72), 68 states have internal predecessors, (72), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10) [2023-02-18 17:05:02,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 93 transitions. [2023-02-18 17:05:02,201 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 93 transitions. Word has length 46 [2023-02-18 17:05:02,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 17:05:02,201 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 93 transitions. [2023-02-18 17:05:02,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.176470588235294) internal successors, (37), 15 states have internal predecessors, (37), 4 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2023-02-18 17:05:02,202 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 93 transitions. [2023-02-18 17:05:02,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-02-18 17:05:02,202 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 17:05:02,202 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 17:05:02,214 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-02-18 17:05:02,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-02-18 17:05:02,409 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 17:05:02,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 17:05:02,410 INFO L85 PathProgramCache]: Analyzing trace with hash 397465844, now seen corresponding path program 4 times [2023-02-18 17:05:02,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 17:05:02,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838373560] [2023-02-18 17:05:02,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 17:05:02,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 17:05:02,421 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-18 17:05:02,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1450837048] [2023-02-18 17:05:02,421 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-18 17:05:02,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 17:05:02,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 17:05:02,437 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 17:05:02,437 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-02-18 17:05:09,224 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-18 17:05:09,224 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 17:05:09,227 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 44 conjunts are in the unsatisfiable core [2023-02-18 17:05:09,228 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 17:05:11,130 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 7 proven. 29 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-02-18 17:05:11,130 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 17:05:22,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 17:05:22,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838373560] [2023-02-18 17:05:22,650 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-18 17:05:22,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1450837048] [2023-02-18 17:05:22,651 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1450837048] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 17:05:22,651 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-02-18 17:05:22,651 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2023-02-18 17:05:22,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486556311] [2023-02-18 17:05:22,651 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-02-18 17:05:22,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-02-18 17:05:22,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 17:05:22,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-02-18 17:05:22,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=410, Unknown=3, NotChecked=0, Total=506 [2023-02-18 17:05:22,652 INFO L87 Difference]: Start difference. First operand 82 states and 93 transitions. Second operand has 16 states, 16 states have (on average 2.3125) internal successors, (37), 14 states have internal predecessors, (37), 4 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2023-02-18 17:05:28,965 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-02-18 17:05:30,598 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-02-18 17:05:34,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 17:05:34,203 INFO L93 Difference]: Finished difference Result 121 states and 139 transitions. [2023-02-18 17:05:34,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-02-18 17:05:34,204 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.3125) internal successors, (37), 14 states have internal predecessors, (37), 4 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 49 [2023-02-18 17:05:34,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 17:05:34,205 INFO L225 Difference]: With dead ends: 121 [2023-02-18 17:05:34,205 INFO L226 Difference]: Without dead ends: 117 [2023-02-18 17:05:34,205 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 15.1s TimeCoverageRelationStatistics Valid=119, Invalid=580, Unknown=3, NotChecked=0, Total=702 [2023-02-18 17:05:34,205 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 33 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2023-02-18 17:05:34,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 393 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 8.2s Time] [2023-02-18 17:05:34,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2023-02-18 17:05:34,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 83. [2023-02-18 17:05:34,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 64 states have (on average 1.15625) internal successors, (74), 69 states have internal predecessors, (74), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10) [2023-02-18 17:05:34,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 95 transitions. [2023-02-18 17:05:34,216 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 95 transitions. Word has length 49 [2023-02-18 17:05:34,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 17:05:34,217 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 95 transitions. [2023-02-18 17:05:34,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.3125) internal successors, (37), 14 states have internal predecessors, (37), 4 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2023-02-18 17:05:34,217 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 95 transitions. [2023-02-18 17:05:34,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-02-18 17:05:34,218 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 17:05:34,218 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 17:05:34,224 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-02-18 17:05:34,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-02-18 17:05:34,425 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 17:05:34,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 17:05:34,426 INFO L85 PathProgramCache]: Analyzing trace with hash 1797561273, now seen corresponding path program 1 times [2023-02-18 17:05:34,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 17:05:34,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116075725] [2023-02-18 17:05:34,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 17:05:34,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 17:05:34,434 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-18 17:05:34,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [158147811] [2023-02-18 17:05:34,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 17:05:34,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 17:05:34,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 17:05:34,435 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 17:05:34,437 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-02-18 17:05:34,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 17:05:34,474 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 11 conjunts are in the unsatisfiable core [2023-02-18 17:05:34,475 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 17:05:34,489 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-02-18 17:05:34,489 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 17:05:34,528 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 4 proven. 26 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-02-18 17:05:34,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 17:05:34,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116075725] [2023-02-18 17:05:34,529 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-18 17:05:34,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [158147811] [2023-02-18 17:05:34,529 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [158147811] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 17:05:34,529 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-18 17:05:34,529 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 14 [2023-02-18 17:05:34,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219888898] [2023-02-18 17:05:34,529 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-18 17:05:34,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-02-18 17:05:34,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 17:05:34,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-02-18 17:05:34,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2023-02-18 17:05:34,531 INFO L87 Difference]: Start difference. First operand 83 states and 95 transitions. Second operand has 14 states, 14 states have (on average 3.7142857142857144) internal successors, (52), 14 states have internal predecessors, (52), 3 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-02-18 17:05:34,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 17:05:34,640 INFO L93 Difference]: Finished difference Result 279 states and 325 transitions. [2023-02-18 17:05:34,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-02-18 17:05:34,640 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.7142857142857144) internal successors, (52), 14 states have internal predecessors, (52), 3 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 51 [2023-02-18 17:05:34,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 17:05:34,641 INFO L225 Difference]: With dead ends: 279 [2023-02-18 17:05:34,641 INFO L226 Difference]: Without dead ends: 248 [2023-02-18 17:05:34,642 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=184, Invalid=322, Unknown=0, NotChecked=0, Total=506 [2023-02-18 17:05:34,645 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 100 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 17:05:34,646 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 211 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 17:05:34,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2023-02-18 17:05:34,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 100. [2023-02-18 17:05:34,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 81 states have (on average 1.1851851851851851) internal successors, (96), 86 states have internal predecessors, (96), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10) [2023-02-18 17:05:34,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 117 transitions. [2023-02-18 17:05:34,665 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 117 transitions. Word has length 51 [2023-02-18 17:05:34,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 17:05:34,666 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 117 transitions. [2023-02-18 17:05:34,666 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.7142857142857144) internal successors, (52), 14 states have internal predecessors, (52), 3 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-02-18 17:05:34,666 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 117 transitions. [2023-02-18 17:05:34,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-02-18 17:05:34,667 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 17:05:34,667 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 17:05:34,685 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-02-18 17:05:34,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-02-18 17:05:34,885 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 17:05:34,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 17:05:34,886 INFO L85 PathProgramCache]: Analyzing trace with hash 1519157991, now seen corresponding path program 5 times [2023-02-18 17:05:34,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 17:05:34,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497137494] [2023-02-18 17:05:34,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 17:05:34,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 17:05:34,901 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-18 17:05:34,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1836069264] [2023-02-18 17:05:34,901 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-18 17:05:34,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 17:05:34,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 17:05:34,902 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 17:05:34,904 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-02-18 17:05:49,777 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2023-02-18 17:05:49,777 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 17:05:49,782 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 50 conjunts are in the unsatisfiable core [2023-02-18 17:05:49,783 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 17:05:51,575 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 9 proven. 42 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-02-18 17:05:51,576 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 17:06:17,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 17:06:17,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497137494] [2023-02-18 17:06:17,035 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-18 17:06:17,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1836069264] [2023-02-18 17:06:17,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1836069264] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 17:06:17,035 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-02-18 17:06:17,035 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2023-02-18 17:06:17,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039638268] [2023-02-18 17:06:17,036 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-02-18 17:06:17,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-02-18 17:06:17,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 17:06:17,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-02-18 17:06:17,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=537, Unknown=1, NotChecked=0, Total=650 [2023-02-18 17:06:17,037 INFO L87 Difference]: Start difference. First operand 100 states and 117 transitions. Second operand has 19 states, 19 states have (on average 2.263157894736842) internal successors, (43), 17 states have internal predecessors, (43), 4 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2023-02-18 17:06:22,551 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-02-18 17:06:24,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 17:06:24,615 INFO L93 Difference]: Finished difference Result 142 states and 166 transitions. [2023-02-18 17:06:24,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-02-18 17:06:24,616 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.263157894736842) internal successors, (43), 17 states have internal predecessors, (43), 4 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 52 [2023-02-18 17:06:24,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 17:06:24,617 INFO L225 Difference]: With dead ends: 142 [2023-02-18 17:06:24,617 INFO L226 Difference]: Without dead ends: 138 [2023-02-18 17:06:24,617 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 43 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 23.6s TimeCoverageRelationStatistics Valid=149, Invalid=780, Unknown=1, NotChecked=0, Total=930 [2023-02-18 17:06:24,618 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 42 mSDsluCounter, 474 mSDsCounter, 0 mSdLazyCounter, 668 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 520 SdHoareTripleChecker+Invalid, 680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2023-02-18 17:06:24,618 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 520 Invalid, 680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 668 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2023-02-18 17:06:24,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2023-02-18 17:06:24,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 100. [2023-02-18 17:06:24,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 81 states have (on average 1.1851851851851851) internal successors, (96), 86 states have internal predecessors, (96), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10) [2023-02-18 17:06:24,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 117 transitions. [2023-02-18 17:06:24,632 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 117 transitions. Word has length 52 [2023-02-18 17:06:24,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 17:06:24,633 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 117 transitions. [2023-02-18 17:06:24,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.263157894736842) internal successors, (43), 17 states have internal predecessors, (43), 4 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2023-02-18 17:06:24,634 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 117 transitions. [2023-02-18 17:06:24,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-02-18 17:06:24,634 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 17:06:24,634 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 17:06:24,641 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-02-18 17:06:24,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 17:06:24,842 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 17:06:24,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 17:06:24,842 INFO L85 PathProgramCache]: Analyzing trace with hash 272650529, now seen corresponding path program 6 times [2023-02-18 17:06:24,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 17:06:24,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444207954] [2023-02-18 17:06:24,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 17:06:24,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 17:06:24,848 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-18 17:06:24,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1397744939] [2023-02-18 17:06:24,849 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-02-18 17:06:24,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 17:06:24,849 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 17:06:24,861 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 17:06:24,862 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-02-18 17:06:27,737 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2023-02-18 17:06:27,737 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 17:06:27,740 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 26 conjunts are in the unsatisfiable core [2023-02-18 17:06:27,741 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 17:06:40,116 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 17 proven. 22 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-02-18 17:06:40,116 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 17:06:43,571 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse44 (mod |c_ULTIMATE.start_main_~b~0#1| 4294967296))) (let ((.cse20 (div .cse44 2))) (let ((.cse33 (+ .cse20 1))) (let ((.cse111 (< .cse44 0)) (.cse0 (= 0 (mod |c_ULTIMATE.start_main_~b~0#1| 2))) (.cse99 (mod .cse20 4294967296)) (.cse45 (mod .cse20 2)) (.cse22 (mod .cse33 4294967296)) (.cse34 (mod .cse33 2))) (let ((.cse3 (not (= 0 .cse34))) (.cse7 (< .cse22 0)) (.cse23 (>= 0 2)) (.cse60 (not (= 0 .cse45))) (.cse59 (< .cse99 0)) (.cse46 (and .cse111 (not .cse0))) (.cse17 (mod |c_ULTIMATE.start_main_~r~0#1| 4294967296)) (.cse11 (* (mod |c_ULTIMATE.start_main_~B~0#1| 4294967296) (- 1))) (.cse1 (not .cse111))) (and (or .cse0 .cse1 (let ((.cse21 (div .cse22 2))) (let ((.cse6 (= 0 (mod .cse21 2))) (.cse8 (< (mod .cse21 4294967296) 0))) (let ((.cse5 (not .cse8)) (.cse2 (not .cse6)) (.cse4 (forall ((|aux_div_v_ULTIMATE.start_main_~b~0#1_76_50| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_83_85_204| Int) (|aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_83| Int) (|aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_83_85_204_108| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_83_85| Int) (|aux_div_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61| Int)) (let ((.cse14 (+ (* |aux_div_v_ULTIMATE.start_main_~b~0#1_76_50| (- 4294967296)) (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_83_85_204| (- 8589934592)) (* |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_83| (- 4294967296)) (* |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72| (- 8589934592)) (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_83_85_204_108| (- 2)) .cse20 (* |aux_div_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61| (- 4294967296)) 1))) (let ((.cse15 (+ (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_83_85_204_108| 2) .cse14))) (let ((.cse18 (+ .cse15 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_83_85_204| 8589934592) (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_83_85| (- 2))))) (let ((.cse19 (+ (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_83_85| 2) .cse18))) (let ((.cse9 (+ (* |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_83| 4294967296) .cse19))) (let ((.cse10 (+ (* |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72| 8589934592) .cse9))) (let ((.cse13 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_83_85_204| 4294967296)) (.cse16 (+ (* |aux_div_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61| 4294967296) .cse10))) (or (>= .cse9 8589934592) (>= .cse10 4294967296) (> 0 .cse9) (let ((.cse12 (* |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72| 4294967296))) (< (+ .cse11 (+ .cse12 (+ (* |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_83| 2147483648) (+ |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_83_85| (+ .cse13 |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_83_85_204_108| (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_83_85| (- 1)))))) (- 1)) .cse12)) (>= .cse14 2) (< |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_83_85| .cse13) (> 0 .cse15) (> 0 .cse16) (>= .cse15 8589934592) (> 0 .cse14) (not (>= .cse17 .cse16)) (> 0 .cse18) (> 0 .cse19) (>= .cse16 4294967296) (> 0 .cse10) (>= .cse19 4294967296) (>= .cse18 2)))))))))))) (and (or .cse2 .cse3 .cse4) (or .cse5 .cse6 .cse4 .cse7) (or .cse8 .cse4 .cse7) (or .cse3 .cse5 .cse6 .cse4) (or .cse3 .cse8 .cse4) (or .cse2 .cse4 .cse7)))))) (or .cse23 (and (or .cse0 .cse1 (forall ((|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85_370| Int) (|aux_div_v_ULTIMATE.start_main_~b~0#1_76_50| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85_370_207_129| Int) (|aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85| Int) (|aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85_370_207| Int) (|aux_div_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61| Int)) (let ((.cse24 (+ (* (+ (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85_370| (- 4294967296)) (* |aux_div_v_ULTIMATE.start_main_~b~0#1_76_50| (- 2147483648)) (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85_370_207_129| (- 2147483648)) (* |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72| (- 2147483648)) (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85_370_207| (- 4294967296)) (div .cse33 2) (* |aux_div_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61| (- 2147483648))) 2) 0))) (let ((.cse32 (* |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72| 4294967296)) (.cse31 (+ (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85_370_207_129| 4294967296) .cse24))) (let ((.cse29 (+ .cse32 .cse31 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85_370_207| 8589934592)))) (let ((.cse30 (+ .cse29 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85_370| 8589934592) (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85| (- 2)) (* |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72| (- 4294967296)) (* |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74| (- 2))))) (let ((.cse27 (+ (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85| 2) .cse30))) (let ((.cse26 (+ .cse27 (* |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74| 2)))) (let ((.cse25 (+ .cse32 .cse26))) (let ((.cse28 (+ (* |aux_div_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61| 4294967296) .cse25))) (or (>= .cse24 4294967296) (>= .cse25 4294967296) (>= .cse26 4294967296) (>= .cse27 2) (not (>= .cse17 .cse28)) (>= .cse28 4294967296) (> 0 .cse29) (> 0 .cse25) (< (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85_370| 4294967296) (+ .cse11 (+ (* |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72| 2147483648) (+ |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74| |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85|)) 1)) (> 0 .cse26) (>= .cse30 2) (> 0 .cse31) (< (* (+ |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85_370| |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85_370_207|) 4294967296) (+ |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74| (- 4294967295))) (> 0 .cse30) (> 0 .cse27) (> 0 .cse24) (>= .cse29 8589934592) (> 0 .cse28) (>= .cse31 8589934592))))))))))) (not (= .cse34 0))) (or (forall ((|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85_370| Int) (|aux_div_v_ULTIMATE.start_main_~b~0#1_76_50| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85_370_207_129| Int) (|aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85| Int) (|aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85_370_207| Int) (|aux_div_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61| Int)) (let ((.cse39 (+ (* (+ (div .cse44 4) (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85_370| (- 4294967296)) (* |aux_div_v_ULTIMATE.start_main_~b~0#1_76_50| (- 2147483648)) (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85_370_207_129| (- 2147483648)) (* |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72| (- 2147483648)) (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85_370_207| (- 4294967296)) (* |aux_div_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61| (- 2147483648))) 2) 0))) (let ((.cse43 (* |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72| 4294967296)) (.cse35 (+ (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85_370_207_129| 4294967296) .cse39))) (let ((.cse36 (+ .cse43 .cse35 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85_370_207| 8589934592)))) (let ((.cse42 (+ .cse36 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85_370| 8589934592) (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85| (- 2)) (* |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72| (- 4294967296)) (* |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74| (- 2))))) (let ((.cse38 (+ (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85| 2) .cse42))) (let ((.cse37 (+ .cse38 (* |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74| 2)))) (let ((.cse40 (+ .cse43 .cse37))) (let ((.cse41 (+ (* |aux_div_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61| 4294967296) .cse40))) (or (>= .cse35 8589934592) (>= .cse36 8589934592) (> 0 .cse37) (> 0 .cse38) (>= .cse39 4294967296) (>= .cse40 4294967296) (not (>= .cse17 .cse41)) (> 0 .cse35) (>= .cse38 2) (< (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85_370| 4294967296) (+ .cse11 (+ (* |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72| 2147483648) (+ |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74| |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85|)) 1)) (>= .cse42 2) (> 0 .cse41) (< (* (+ |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85_370| |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85_370_207|) 4294967296) (+ |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74| (- 4294967295))) (>= .cse41 4294967296) (>= .cse37 4294967296) (> 0 .cse42) (> 0 .cse36) (> 0 .cse40) (> 0 .cse39))))))))))) (not (= .cse45 0)) .cse46))) (or (forall ((|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85_370_207_129_141| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85_370| Int) (|aux_div_v_ULTIMATE.start_main_~b~0#1_76_50| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85_370_207_129| Int) (|aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85| Int) (|aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85_370_207| Int) (|aux_div_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61| Int)) (let ((.cse57 (* |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72| (- 4294967296)))) (let ((.cse55 (+ (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85_370_207_129_141| (- 4294967296)) (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85_370| (- 8589934592)) (* |aux_div_v_ULTIMATE.start_main_~b~0#1_76_50| (- 4294967296)) (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85_370_207_129| (- 4294967296)) .cse57 .cse20 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85_370_207| (- 8589934592)) (* |aux_div_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61| (- 4294967296))))) (let ((.cse54 (+ (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85_370_207_129_141| 4294967296) .cse55))) (let ((.cse56 (* |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72| 4294967296)) (.cse51 (+ (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85_370_207_129| 4294967296) .cse54))) (let ((.cse48 (+ .cse56 .cse51 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85_370_207| 8589934592)))) (let ((.cse52 (+ .cse48 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85_370| 8589934592) (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85| (- 2)) .cse57 (* |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74| (- 2))))) (let ((.cse53 (+ (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85| 2) .cse52))) (let ((.cse50 (+ .cse53 (* |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74| 2)))) (let ((.cse47 (+ .cse56 .cse50))) (let ((.cse49 (+ (* |aux_div_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61| 4294967296) .cse47))) (or (>= .cse47 4294967296) (> 0 .cse48) (not (>= .cse17 .cse49)) (> 0 .cse50) (>= .cse49 4294967296) (< (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85_370| 4294967296) (+ .cse11 (+ (* |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72| 2147483648) (+ |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74| |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85|)) 1)) (> 0 .cse51) (>= .cse52 2) (>= .cse50 4294967296) (> 0 .cse52) (>= .cse51 8589934592) (> 0 .cse47) (< (* (+ |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85_370| |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85_370_207|) 4294967296) (+ |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74| (- 4294967295))) (> 0 .cse53) (>= .cse48 8589934592) (>= .cse53 2) (> 0 .cse54) (>= .cse55 4294967296) (> 0 .cse49) (> 0 .cse55) (>= .cse54 4294967296))))))))))))) .cse46) (or (and (or (let ((.cse58 (forall ((|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85_370| Int) (|aux_div_v_ULTIMATE.start_main_~b~0#1_76_50| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85_370_207_129| Int) (|aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85| Int) (|aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74| Int) (|aux_div_aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85_370_207_129_132_144| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85_370_207| Int) (|aux_div_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61| Int)) (let ((.cse71 (* |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72| (- 4294967296)))) (let ((.cse61 (+ (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85_370| (- 8589934592)) (* |aux_div_v_ULTIMATE.start_main_~b~0#1_76_50| (- 4294967296)) (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85_370_207_129| (- 4294967296)) .cse71 (* |aux_div_aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85_370_207_129_132_144| (- 4)) .cse20 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85_370_207| (- 8589934592)) (* |aux_div_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61| (- 4294967296))))) (let ((.cse62 (+ (* (+ (* |aux_div_aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85_370_207_129_132_144| 2) 0) 2) .cse61))) (let ((.cse70 (* |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72| 4294967296)) (.cse69 (+ (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85_370_207_129| 4294967296) .cse62))) (let ((.cse64 (+ .cse70 .cse69 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85_370_207| 8589934592)))) (let ((.cse67 (+ .cse64 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85_370| 8589934592) (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85| (- 2)) .cse71 (* |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74| (- 2))))) (let ((.cse65 (+ (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85| 2) .cse67))) (let ((.cse68 (+ .cse65 (* |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74| 2)))) (let ((.cse66 (+ .cse70 .cse68))) (let ((.cse63 (+ (* |aux_div_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61| 4294967296) .cse66))) (or (> 0 .cse61) (>= .cse61 2) (> 0 .cse62) (>= .cse63 4294967296) (> 0 .cse64) (>= .cse65 2) (> 0 .cse66) (>= .cse66 4294967296) (> 0 .cse67) (> 0 .cse63) (> 0 .cse68) (< (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85_370| 4294967296) (+ .cse11 (+ (* |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72| 2147483648) (+ |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74| |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85|)) 1)) (>= .cse69 8589934592) (>= .cse67 2) (not (>= .cse17 .cse63)) (>= .cse68 4294967296) (>= .cse62 4294967296) (< (* (+ |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85_370| |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85_370_207|) 4294967296) (+ |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74| (- 4294967295))) (>= .cse64 8589934592) (> 0 .cse65) (> 0 .cse69))))))))))))))) (and (or .cse58 .cse59) (or .cse58 .cse60))) .cse46) (or (let ((.cse72 (forall ((|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85_370| Int) (|aux_div_v_ULTIMATE.start_main_~b~0#1_76_50| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85_370_207_129| Int) (|aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85| Int) (|aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74| Int) (|aux_div_aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85_370_207_129_132_144| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85_370_207| Int) (|aux_div_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61| Int)) (let ((.cse83 (* |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72| (- 4294967296)))) (let ((.cse76 (+ (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85_370| (- 8589934592)) (* |aux_div_v_ULTIMATE.start_main_~b~0#1_76_50| (- 4294967296)) (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85_370_207_129| (- 4294967296)) .cse83 (* |aux_div_aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85_370_207_129_132_144| (- 4)) .cse20 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85_370_207| (- 8589934592)) (* |aux_div_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61| (- 4294967296)) 1))) (let ((.cse81 (+ (* (+ (* |aux_div_aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85_370_207_129_132_144| 2) 0) 2) .cse76))) (let ((.cse82 (* |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72| 4294967296)) (.cse78 (+ (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85_370_207_129| 4294967296) .cse81))) (let ((.cse80 (+ .cse82 .cse78 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85_370_207| 8589934592)))) (let ((.cse73 (+ .cse80 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85_370| 8589934592) (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85| (- 2)) .cse83 (* |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74| (- 2))))) (let ((.cse77 (+ (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85| 2) .cse73))) (let ((.cse74 (+ .cse77 (* |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74| 2)))) (let ((.cse75 (+ .cse82 .cse74))) (let ((.cse79 (+ (* |aux_div_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61| 4294967296) .cse75))) (or (> 0 .cse73) (> 0 .cse74) (>= .cse73 2) (>= .cse75 4294967296) (> 0 .cse76) (> 0 .cse77) (>= .cse78 8589934592) (not (>= .cse17 .cse79)) (< (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85_370| 4294967296) (+ .cse11 (+ (* |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72| 2147483648) (+ |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74| |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85|)) 1)) (>= .cse76 2) (>= .cse79 4294967296) (< (* (+ |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85_370| |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85_370_207|) 4294967296) (+ |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74| (- 4294967295))) (> 0 .cse80) (> 0 .cse79) (> 0 .cse78) (>= .cse74 4294967296) (> 0 .cse75) (>= .cse77 2) (>= .cse81 4294967296) (> 0 .cse81) (>= .cse80 8589934592))))))))))))))) (and (or .cse3 .cse72) (or .cse7 .cse72))) .cse0 .cse1)) .cse23) (or (let ((.cse98 (div .cse99 2))) (let ((.cse86 (= 0 (mod .cse98 2))) (.cse87 (< (mod .cse98 4294967296) 0))) (let ((.cse85 (not .cse87)) (.cse88 (not .cse86)) (.cse84 (forall ((|aux_div_v_ULTIMATE.start_main_~b~0#1_76_50| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_83_85_204| Int) (|aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_83| Int) (|aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_83_85_204_108| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_83_85| Int) (|aux_div_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61| Int)) (let ((.cse90 (+ (* |aux_div_v_ULTIMATE.start_main_~b~0#1_76_50| (- 4294967296)) (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_83_85_204| (- 8589934592)) (* |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_83| (- 4294967296)) (* |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72| (- 8589934592)) (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_83_85_204_108| (- 2)) .cse20 (* |aux_div_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61| (- 4294967296))))) (let ((.cse93 (+ (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_83_85_204_108| 2) .cse90))) (let ((.cse96 (+ .cse93 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_83_85_204| 8589934592) (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_83_85| (- 2))))) (let ((.cse97 (+ (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_83_85| 2) .cse96))) (let ((.cse89 (+ (* |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_83| 4294967296) .cse97))) (let ((.cse94 (+ (* |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72| 8589934592) .cse89))) (let ((.cse92 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_83_85_204| 4294967296)) (.cse95 (+ (* |aux_div_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61| 4294967296) .cse94))) (or (>= .cse89 8589934592) (>= .cse90 2) (let ((.cse91 (* |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72| 4294967296))) (< (+ .cse11 (+ .cse91 (+ (* |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_83| 2147483648) (+ |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_83_85| (+ .cse92 |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_83_85_204_108| (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_83_85| (- 1)))))) (- 1)) .cse91)) (> 0 .cse93) (> 0 .cse90) (> 0 .cse94) (not (>= .cse17 .cse95)) (< |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_83_85| .cse92) (> 0 .cse96) (> 0 .cse95) (> 0 .cse97) (>= .cse93 8589934592) (>= .cse94 4294967296) (>= .cse95 4294967296) (> 0 .cse89) (>= .cse96 2) (>= .cse97 4294967296)))))))))))) (and (or .cse84 .cse85 .cse86 .cse60) (or .cse84 .cse85 .cse59 .cse86) (or .cse87 .cse84 .cse60) (or .cse88 .cse84 .cse59) (or .cse88 .cse84 .cse60) (or .cse87 .cse84 .cse59))))) .cse46) (or .cse0 (forall ((|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85_370_207_129_141| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85_370| Int) (|aux_div_v_ULTIMATE.start_main_~b~0#1_76_50| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85_370_207_129| Int) (|aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85| Int) (|aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85_370_207| Int) (|aux_div_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61| Int)) (let ((.cse110 (* |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72| (- 4294967296)))) (let ((.cse107 (+ (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85_370_207_129_141| (- 4294967296)) (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85_370| (- 8589934592)) (* |aux_div_v_ULTIMATE.start_main_~b~0#1_76_50| (- 4294967296)) (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85_370_207_129| (- 4294967296)) .cse110 .cse20 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85_370_207| (- 8589934592)) (* |aux_div_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61| (- 4294967296)) 1))) (let ((.cse100 (+ (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85_370_207_129_141| 4294967296) .cse107))) (let ((.cse109 (* |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72| 4294967296)) (.cse108 (+ (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85_370_207_129| 4294967296) .cse100))) (let ((.cse103 (+ .cse109 .cse108 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85_370_207| 8589934592)))) (let ((.cse105 (+ .cse103 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85_370| 8589934592) (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85| (- 2)) .cse110 (* |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74| (- 2))))) (let ((.cse106 (+ (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85| 2) .cse105))) (let ((.cse104 (+ .cse106 (* |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74| 2)))) (let ((.cse101 (+ .cse109 .cse104))) (let ((.cse102 (+ (* |aux_div_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61| 4294967296) .cse101))) (or (>= .cse100 4294967296) (>= .cse101 4294967296) (> 0 .cse102) (>= .cse102 4294967296) (>= .cse103 8589934592) (not (>= .cse17 .cse102)) (>= .cse104 4294967296) (> 0 .cse105) (>= .cse106 2) (< (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85_370| 4294967296) (+ .cse11 (+ (* |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72| 2147483648) (+ |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74| |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85|)) 1)) (> 0 .cse106) (> 0 .cse100) (> 0 .cse107) (>= .cse105 2) (> 0 .cse103) (< (* (+ |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85_370| |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74_85_370_207|) 4294967296) (+ |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~b~0#1_76_50_61_72_74| (- 4294967295))) (> 0 .cse104) (>= .cse107 4294967296) (> 0 .cse101) (>= .cse108 8589934592) (> 0 .cse108))))))))))))) .cse1))))))) is different from false [2023-02-18 17:06:44,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 17:06:44,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444207954] [2023-02-18 17:06:44,511 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-18 17:06:44,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1397744939] [2023-02-18 17:06:44,512 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1397744939] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 17:06:44,512 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-02-18 17:06:44,512 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2023-02-18 17:06:44,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588165240] [2023-02-18 17:06:44,512 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-02-18 17:06:44,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-02-18 17:06:44,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 17:06:44,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-02-18 17:06:44,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=185, Unknown=1, NotChecked=28, Total=272 [2023-02-18 17:06:44,513 INFO L87 Difference]: Start difference. First operand 100 states and 117 transitions. Second operand has 13 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 11 states have internal predecessors, (35), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-02-18 17:06:45,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 17:06:45,836 INFO L93 Difference]: Finished difference Result 145 states and 171 transitions. [2023-02-18 17:06:45,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-02-18 17:06:45,836 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 11 states have internal predecessors, (35), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 55 [2023-02-18 17:06:45,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 17:06:45,837 INFO L225 Difference]: With dead ends: 145 [2023-02-18 17:06:45,837 INFO L226 Difference]: Without dead ends: 100 [2023-02-18 17:06:45,837 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=62, Invalid=213, Unknown=1, NotChecked=30, Total=306 [2023-02-18 17:06:45,837 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 27 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-02-18 17:06:45,837 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 190 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-02-18 17:06:45,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2023-02-18 17:06:45,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2023-02-18 17:06:45,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 81 states have (on average 1.1728395061728396) internal successors, (95), 86 states have internal predecessors, (95), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10) [2023-02-18 17:06:45,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 116 transitions. [2023-02-18 17:06:45,849 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 116 transitions. Word has length 55 [2023-02-18 17:06:45,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 17:06:45,849 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 116 transitions. [2023-02-18 17:06:45,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 11 states have internal predecessors, (35), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-02-18 17:06:45,849 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 116 transitions. [2023-02-18 17:06:45,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-02-18 17:06:45,850 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 17:06:45,850 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 17:06:45,860 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-02-18 17:06:46,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-02-18 17:06:46,061 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 17:06:46,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 17:06:46,061 INFO L85 PathProgramCache]: Analyzing trace with hash -1290620908, now seen corresponding path program 7 times [2023-02-18 17:06:46,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 17:06:46,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644637609] [2023-02-18 17:06:46,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 17:06:46,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 17:06:46,077 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-18 17:06:46,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1486233417] [2023-02-18 17:06:46,087 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-02-18 17:06:46,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 17:06:46,087 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 17:06:46,088 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 17:06:46,090 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-02-18 17:07:03,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 17:07:03,047 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 57 conjunts are in the unsatisfiable core [2023-02-18 17:07:03,049 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 17:08:15,503 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 6 proven. 57 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-02-18 17:08:15,503 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 17:08:55,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 17:08:55,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644637609] [2023-02-18 17:08:55,591 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-18 17:08:55,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1486233417] [2023-02-18 17:08:55,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1486233417] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 17:08:55,591 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-02-18 17:08:55,591 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2023-02-18 17:08:55,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585186666] [2023-02-18 17:08:55,591 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-02-18 17:08:55,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-02-18 17:08:55,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 17:08:55,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-02-18 17:08:55,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=618, Unknown=10, NotChecked=0, Total=756 [2023-02-18 17:08:55,592 INFO L87 Difference]: Start difference. First operand 100 states and 116 transitions. Second operand has 21 states, 20 states have (on average 2.15) internal successors, (43), 18 states have internal predecessors, (43), 5 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-18 17:09:15,525 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-02-18 17:09:17,621 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-02-18 17:09:19,627 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-02-18 17:09:21,633 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-02-18 17:09:23,639 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-02-18 17:09:25,646 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-02-18 17:09:27,653 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-02-18 17:09:29,660 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-02-18 17:09:31,666 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-02-18 17:09:33,670 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-02-18 17:09:35,683 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-02-18 17:09:37,691 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-02-18 17:09:39,700 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-02-18 17:09:41,706 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-02-18 17:09:43,729 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-02-18 17:09:45,738 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-02-18 17:09:47,743 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-02-18 17:09:49,748 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-02-18 17:09:51,752 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-02-18 17:09:53,761 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-02-18 17:09:55,770 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-02-18 17:09:57,778 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-02-18 17:10:00,463 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-02-18 17:10:02,473 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-02-18 17:10:04,480 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-02-18 17:10:06,447 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-02-18 17:10:08,553 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-02-18 17:10:10,495 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-02-18 17:10:12,504 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-02-18 17:10:14,513 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-02-18 17:10:16,544 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-02-18 17:10:21,033 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-02-18 17:10:23,045 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-02-18 17:10:26,338 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-02-18 17:10:26,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 17:10:26,572 INFO L93 Difference]: Finished difference Result 140 states and 163 transitions. [2023-02-18 17:10:26,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-02-18 17:10:26,572 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 2.15) internal successors, (43), 18 states have internal predecessors, (43), 5 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 55 [2023-02-18 17:10:26,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 17:10:26,573 INFO L225 Difference]: With dead ends: 140 [2023-02-18 17:10:26,573 INFO L226 Difference]: Without dead ends: 138 [2023-02-18 17:10:26,573 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 44 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 59.6s TimeCoverageRelationStatistics Valid=165, Invalid=878, Unknown=13, NotChecked=0, Total=1056 [2023-02-18 17:10:26,574 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 45 mSDsluCounter, 517 mSDsCounter, 0 mSdLazyCounter, 644 mSolverCounterSat, 8 mSolverCounterUnsat, 32 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 75.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 565 SdHoareTripleChecker+Invalid, 684 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 644 IncrementalHoareTripleChecker+Invalid, 32 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 75.8s IncrementalHoareTripleChecker+Time [2023-02-18 17:10:26,574 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 565 Invalid, 684 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 644 Invalid, 32 Unknown, 0 Unchecked, 75.8s Time] [2023-02-18 17:10:26,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2023-02-18 17:10:26,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 123. [2023-02-18 17:10:26,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 99 states have (on average 1.1717171717171717) internal successors, (116), 105 states have internal predecessors, (116), 14 states have call successors, (14), 9 states have call predecessors, (14), 9 states have return successors, (13), 8 states have call predecessors, (13), 13 states have call successors, (13) [2023-02-18 17:10:26,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 143 transitions. [2023-02-18 17:10:26,596 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 143 transitions. Word has length 55 [2023-02-18 17:10:26,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 17:10:26,596 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 143 transitions. [2023-02-18 17:10:26,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 2.15) internal successors, (43), 18 states have internal predecessors, (43), 5 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-18 17:10:26,596 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 143 transitions. [2023-02-18 17:10:26,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-02-18 17:10:26,597 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 17:10:26,597 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 17:10:26,607 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-02-18 17:10:26,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-02-18 17:10:26,805 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 17:10:26,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 17:10:26,805 INFO L85 PathProgramCache]: Analyzing trace with hash -1292408368, now seen corresponding path program 1 times [2023-02-18 17:10:26,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 17:10:26,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300075592] [2023-02-18 17:10:26,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 17:10:26,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 17:10:26,831 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-18 17:10:26,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1605410494] [2023-02-18 17:10:26,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 17:10:26,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 17:10:26,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 17:10:26,833 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 17:10:26,834 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-02-18 17:10:26,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 17:10:26,890 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 19 conjunts are in the unsatisfiable core [2023-02-18 17:10:26,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 17:10:26,925 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 4 proven. 58 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-02-18 17:10:26,925 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 17:10:27,022 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 4 proven. 54 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-02-18 17:10:27,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 17:10:27,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300075592] [2023-02-18 17:10:27,023 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-18 17:10:27,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1605410494] [2023-02-18 17:10:27,023 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1605410494] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 17:10:27,023 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-18 17:10:27,023 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12] total 22 [2023-02-18 17:10:27,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975790780] [2023-02-18 17:10:27,023 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-18 17:10:27,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-02-18 17:10:27,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 17:10:27,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-02-18 17:10:27,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=195, Invalid=267, Unknown=0, NotChecked=0, Total=462 [2023-02-18 17:10:27,024 INFO L87 Difference]: Start difference. First operand 123 states and 143 transitions. Second operand has 22 states, 22 states have (on average 3.6363636363636362) internal successors, (80), 22 states have internal predecessors, (80), 7 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2023-02-18 17:10:27,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 17:10:27,254 INFO L93 Difference]: Finished difference Result 510 states and 592 transitions. [2023-02-18 17:10:27,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-02-18 17:10:27,254 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 3.6363636363636362) internal successors, (80), 22 states have internal predecessors, (80), 7 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) Word has length 55 [2023-02-18 17:10:27,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 17:10:27,256 INFO L225 Difference]: With dead ends: 510 [2023-02-18 17:10:27,256 INFO L226 Difference]: Without dead ends: 503 [2023-02-18 17:10:27,257 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=408, Invalid=782, Unknown=0, NotChecked=0, Total=1190 [2023-02-18 17:10:27,257 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 251 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 17:10:27,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 320 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 17:10:27,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2023-02-18 17:10:27,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 461. [2023-02-18 17:10:27,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 461 states, 357 states have (on average 1.1708683473389356) internal successors, (418), 385 states have internal predecessors, (418), 60 states have call successors, (60), 43 states have call predecessors, (60), 43 states have return successors, (59), 32 states have call predecessors, (59), 59 states have call successors, (59) [2023-02-18 17:10:27,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 537 transitions. [2023-02-18 17:10:27,309 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 537 transitions. Word has length 55 [2023-02-18 17:10:27,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 17:10:27,309 INFO L495 AbstractCegarLoop]: Abstraction has 461 states and 537 transitions. [2023-02-18 17:10:27,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 3.6363636363636362) internal successors, (80), 22 states have internal predecessors, (80), 7 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2023-02-18 17:10:27,309 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 537 transitions. [2023-02-18 17:10:27,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-02-18 17:10:27,310 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 17:10:27,310 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 17:10:27,317 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-02-18 17:10:27,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-02-18 17:10:27,517 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 17:10:27,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 17:10:27,518 INFO L85 PathProgramCache]: Analyzing trace with hash 484386454, now seen corresponding path program 1 times [2023-02-18 17:10:27,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 17:10:27,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659568733] [2023-02-18 17:10:27,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 17:10:27,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 17:10:27,545 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-18 17:10:27,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1507737617] [2023-02-18 17:10:27,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 17:10:27,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 17:10:27,546 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 17:10:27,548 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 17:10:27,555 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-02-18 17:11:33,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 17:11:33,702 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 52 conjunts are in the unsatisfiable core [2023-02-18 17:11:33,703 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 17:11:36,074 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (div (+ |c_ULTIMATE.start_main_~A~0#1| (- |c_ULTIMATE.start_main_~r~0#1|)) 16))) (let ((.cse2 (mod .cse0 134217728))) (let ((.cse4 (mod .cse2 268435456))) (and (<= 0 .cse0) (= |c_ULTIMATE.start_main_~q~0#1| (* 2 (+ 1 (* 2 0)))) (exists ((|aux_div_ULTIMATE.start_main_~B~0#1_44| Int) (|aux_div_aux_mod_ULTIMATE.start_main_~B~0#1_44_55| Int)) (let ((.cse6 (* |aux_div_aux_mod_ULTIMATE.start_main_~B~0#1_44_55| 134217728))) (let ((.cse3 (+ .cse6 (* |aux_div_ULTIMATE.start_main_~B~0#1_44| 134217728) .cse0))) (let ((.cse1 (+ .cse6 .cse0)) (.cse5 (mod .cse3 4294967296))) (and (< .cse1 134217728) (>= (mod (+ (* .cse2 16) |c_ULTIMATE.start_main_~r~0#1|) 4294967296) (* (mod .cse3 2147483648) 2)) (<= 0 .cse1) (not (= (* .cse4 16) .cse5)) (not (>= (mod (+ (* |aux_div_aux_mod_ULTIMATE.start_main_~B~0#1_44_55| 2147483648) (* .cse0 16) |c_ULTIMATE.start_main_~r~0#1|) 4294967296) (* .cse1 32))) (< .cse5 2147483647) (>= .cse5 1)))))) (= |c_ULTIMATE.start_main_~b~0#1| (* .cse4 8)) (= (mod (+ |c_ULTIMATE.start_main_~A~0#1| (* |c_ULTIMATE.start_main_~r~0#1| 15)) 16) 0) (< .cse0 134217728))))) is different from false [2023-02-18 17:11:42,183 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 6 proven. 50 refuted. 0 times theorem prover too weak. 5 trivial. 7 not checked. [2023-02-18 17:11:42,183 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 17:12:04,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 17:12:04,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659568733] [2023-02-18 17:12:04,809 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-18 17:12:04,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1507737617] [2023-02-18 17:12:04,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1507737617] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 17:12:04,818 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-02-18 17:12:04,818 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2023-02-18 17:12:04,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361381638] [2023-02-18 17:12:04,818 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-02-18 17:12:04,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-02-18 17:12:04,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 17:12:04,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-02-18 17:12:04,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=529, Unknown=4, NotChecked=48, Total=702 [2023-02-18 17:12:04,821 INFO L87 Difference]: Start difference. First operand 461 states and 537 transitions. Second operand has 20 states, 19 states have (on average 2.263157894736842) internal successors, (43), 17 states have internal predecessors, (43), 5 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-18 17:12:13,189 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (div (+ |c_ULTIMATE.start_main_~A~0#1| (- |c_ULTIMATE.start_main_~r~0#1|)) 16))) (let ((.cse2 (mod .cse0 134217728))) (let ((.cse4 (mod .cse2 268435456)) (.cse7 (mod |c_ULTIMATE.start_main_~B~0#1| 4294967296))) (and (<= 0 .cse0) (= |c_ULTIMATE.start_main_~q~0#1| (* 2 (+ 1 (* 2 0)))) (exists ((|aux_div_ULTIMATE.start_main_~B~0#1_44| Int) (|aux_div_aux_mod_ULTIMATE.start_main_~B~0#1_44_55| Int)) (let ((.cse6 (* |aux_div_aux_mod_ULTIMATE.start_main_~B~0#1_44_55| 134217728))) (let ((.cse3 (+ .cse6 (* |aux_div_ULTIMATE.start_main_~B~0#1_44| 134217728) .cse0))) (let ((.cse1 (+ .cse6 .cse0)) (.cse5 (mod .cse3 4294967296))) (and (< .cse1 134217728) (>= (mod (+ (* .cse2 16) |c_ULTIMATE.start_main_~r~0#1|) 4294967296) (* (mod .cse3 2147483648) 2)) (<= 0 .cse1) (not (= (* .cse4 16) .cse5)) (not (>= (mod (+ (* |aux_div_aux_mod_ULTIMATE.start_main_~B~0#1_44_55| 2147483648) (* .cse0 16) |c_ULTIMATE.start_main_~r~0#1|) 4294967296) (* .cse1 32))) (< .cse5 2147483647) (>= .cse5 1)))))) (= |c_ULTIMATE.start_main_~b~0#1| (* .cse4 8)) (= (mod (+ |c_ULTIMATE.start_main_~A~0#1| (* |c_ULTIMATE.start_main_~r~0#1| 15)) 16) 0) (< .cse7 2147483647) (< .cse0 134217728) (>= .cse7 1))))) is different from false [2023-02-18 17:12:13,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 17:12:13,263 INFO L93 Difference]: Finished difference Result 521 states and 617 transitions. [2023-02-18 17:12:13,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-02-18 17:12:13,263 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 2.263157894736842) internal successors, (43), 17 states have internal predecessors, (43), 5 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 55 [2023-02-18 17:12:13,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 17:12:13,278 INFO L225 Difference]: With dead ends: 521 [2023-02-18 17:12:13,279 INFO L226 Difference]: Without dead ends: 519 [2023-02-18 17:12:13,280 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 45 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 26.1s TimeCoverageRelationStatistics Valid=142, Invalid=672, Unknown=6, NotChecked=110, Total=930 [2023-02-18 17:12:13,280 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 59 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 102 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-02-18 17:12:13,280 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 440 Invalid, 584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 472 Invalid, 0 Unknown, 102 Unchecked, 1.9s Time] [2023-02-18 17:12:13,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2023-02-18 17:12:13,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 461. [2023-02-18 17:12:13,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 461 states, 357 states have (on average 1.1708683473389356) internal successors, (418), 385 states have internal predecessors, (418), 60 states have call successors, (60), 43 states have call predecessors, (60), 43 states have return successors, (59), 32 states have call predecessors, (59), 59 states have call successors, (59) [2023-02-18 17:12:13,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 537 transitions. [2023-02-18 17:12:13,334 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 537 transitions. Word has length 55 [2023-02-18 17:12:13,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 17:12:13,334 INFO L495 AbstractCegarLoop]: Abstraction has 461 states and 537 transitions. [2023-02-18 17:12:13,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 2.263157894736842) internal successors, (43), 17 states have internal predecessors, (43), 5 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-18 17:12:13,335 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 537 transitions. [2023-02-18 17:12:13,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-02-18 17:12:13,335 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 17:12:13,335 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 17:12:13,360 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-02-18 17:12:13,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-02-18 17:12:13,547 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 17:12:13,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 17:12:13,547 INFO L85 PathProgramCache]: Analyzing trace with hash -1232897836, now seen corresponding path program 8 times [2023-02-18 17:12:13,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 17:12:13,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427998616] [2023-02-18 17:12:13,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 17:12:13,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 17:12:13,558 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-18 17:12:13,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1523550255] [2023-02-18 17:12:13,558 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-18 17:12:13,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 17:12:13,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 17:12:13,560 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 17:12:13,562 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process