./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_valuebound2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5317dae Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_valuebound2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 185af411ffb66b9762afca1cabf119211700e2cdb0b48054cece4906f7290e44 --- Real Ultimate output --- This is Ultimate 0.2.2-?-b5317da-m [2023-02-16 01:49:31,042 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-16 01:49:31,044 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-16 01:49:31,074 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-16 01:49:31,075 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-16 01:49:31,077 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-16 01:49:31,078 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-16 01:49:31,080 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-16 01:49:31,081 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-16 01:49:31,085 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-16 01:49:31,086 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-16 01:49:31,087 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-16 01:49:31,087 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-16 01:49:31,089 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-16 01:49:31,090 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-16 01:49:31,091 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-16 01:49:31,091 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-16 01:49:31,092 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-16 01:49:31,093 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-16 01:49:31,096 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-16 01:49:31,097 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-16 01:49:31,098 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-16 01:49:31,099 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-16 01:49:31,099 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-16 01:49:31,105 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-16 01:49:31,105 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-16 01:49:31,106 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-16 01:49:31,107 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-16 01:49:31,107 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-16 01:49:31,107 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-16 01:49:31,108 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-16 01:49:31,108 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-16 01:49:31,109 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-16 01:49:31,110 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-16 01:49:31,111 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-16 01:49:31,111 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-16 01:49:31,111 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-16 01:49:31,111 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-16 01:49:31,112 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-16 01:49:31,113 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-16 01:49:31,113 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-16 01:49:31,114 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-02-16 01:49:31,135 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-16 01:49:31,136 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-16 01:49:31,136 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-16 01:49:31,136 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-16 01:49:31,137 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-16 01:49:31,137 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-16 01:49:31,137 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-16 01:49:31,137 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-16 01:49:31,138 INFO L138 SettingsManager]: * Use SBE=true [2023-02-16 01:49:31,138 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-16 01:49:31,138 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-16 01:49:31,138 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-16 01:49:31,138 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-16 01:49:31,139 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-16 01:49:31,139 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-16 01:49:31,139 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-16 01:49:31,139 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-16 01:49:31,139 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-16 01:49:31,139 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-16 01:49:31,139 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-16 01:49:31,140 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-16 01:49:31,140 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-16 01:49:31,140 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-16 01:49:31,140 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-16 01:49:31,140 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-16 01:49:31,140 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-16 01:49:31,140 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-16 01:49:31,140 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-16 01:49:31,141 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-16 01:49:31,141 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-16 01:49:31,141 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-16 01:49:31,141 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-16 01:49:31,141 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-16 01:49:31,141 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-16 01:49:31,142 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-16 01:49:31,142 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 185af411ffb66b9762afca1cabf119211700e2cdb0b48054cece4906f7290e44 [2023-02-16 01:49:31,337 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-16 01:49:31,353 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-16 01:49:31,355 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-16 01:49:31,355 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-16 01:49:31,356 INFO L275 PluginConnector]: CDTParser initialized [2023-02-16 01:49:31,357 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_valuebound2.c [2023-02-16 01:49:32,343 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-16 01:49:32,500 INFO L351 CDTParser]: Found 1 translation units. [2023-02-16 01:49:32,500 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_valuebound2.c [2023-02-16 01:49:32,504 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb2a1bbe0/c9cd6f57f4614e48bde654f5752aebd1/FLAG7b49f1ea5 [2023-02-16 01:49:32,521 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb2a1bbe0/c9cd6f57f4614e48bde654f5752aebd1 [2023-02-16 01:49:32,523 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-16 01:49:32,524 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-16 01:49:32,526 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-16 01:49:32,526 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-16 01:49:32,528 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-16 01:49:32,528 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 01:49:32" (1/1) ... [2023-02-16 01:49:32,529 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a03fa86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 01:49:32, skipping insertion in model container [2023-02-16 01:49:32,529 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 01:49:32" (1/1) ... [2023-02-16 01:49:32,534 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-16 01:49:32,551 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-16 01:49:32,656 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/dijkstra-u_valuebound2.c[525,538] [2023-02-16 01:49:32,685 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-16 01:49:32,692 INFO L203 MainTranslator]: Completed pre-run [2023-02-16 01:49:32,700 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/dijkstra-u_valuebound2.c[525,538] [2023-02-16 01:49:32,715 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-16 01:49:32,728 INFO L208 MainTranslator]: Completed translation [2023-02-16 01:49:32,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 01:49:32 WrapperNode [2023-02-16 01:49:32,728 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-16 01:49:32,729 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-16 01:49:32,729 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-16 01:49:32,729 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-16 01:49:32,734 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 01:49:32" (1/1) ... [2023-02-16 01:49:32,738 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 01:49:32" (1/1) ... [2023-02-16 01:49:32,766 INFO L138 Inliner]: procedures = 14, calls = 18, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 53 [2023-02-16 01:49:32,767 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-16 01:49:32,767 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-16 01:49:32,767 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-16 01:49:32,767 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-16 01:49:32,773 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 01:49:32" (1/1) ... [2023-02-16 01:49:32,774 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 01:49:32" (1/1) ... [2023-02-16 01:49:32,780 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 01:49:32" (1/1) ... [2023-02-16 01:49:32,781 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 01:49:32" (1/1) ... [2023-02-16 01:49:32,789 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 01:49:32" (1/1) ... [2023-02-16 01:49:32,791 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 01:49:32" (1/1) ... [2023-02-16 01:49:32,795 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 01:49:32" (1/1) ... [2023-02-16 01:49:32,798 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 01:49:32" (1/1) ... [2023-02-16 01:49:32,799 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-16 01:49:32,800 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-16 01:49:32,800 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-16 01:49:32,800 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-16 01:49:32,802 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 01:49:32" (1/1) ... [2023-02-16 01:49:32,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-16 01:49:32,813 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 01:49:32,822 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-02-16 01:49:32,844 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-02-16 01:49:32,861 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-16 01:49:32,861 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-02-16 01:49:32,861 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-02-16 01:49:32,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-16 01:49:32,862 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-16 01:49:32,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-16 01:49:32,862 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-02-16 01:49:32,862 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-02-16 01:49:32,901 INFO L235 CfgBuilder]: Building ICFG [2023-02-16 01:49:32,903 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-16 01:49:33,049 INFO L276 CfgBuilder]: Performing block encoding [2023-02-16 01:49:33,053 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-16 01:49:33,054 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2023-02-16 01:49:33,055 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 01:49:33 BoogieIcfgContainer [2023-02-16 01:49:33,055 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-16 01:49:33,057 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-16 01:49:33,057 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-16 01:49:33,059 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-16 01:49:33,060 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.02 01:49:32" (1/3) ... [2023-02-16 01:49:33,060 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@256f87d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 01:49:33, skipping insertion in model container [2023-02-16 01:49:33,060 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 01:49:32" (2/3) ... [2023-02-16 01:49:33,061 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@256f87d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 01:49:33, skipping insertion in model container [2023-02-16 01:49:33,061 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 01:49:33" (3/3) ... [2023-02-16 01:49:33,062 INFO L112 eAbstractionObserver]: Analyzing ICFG dijkstra-u_valuebound2.c [2023-02-16 01:49:33,076 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-16 01:49:33,076 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-02-16 01:49:33,113 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-16 01:49:33,118 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;@55ec8756, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-16 01:49:33,119 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-02-16 01:49:33,122 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 19 states have internal predecessors, (28), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-02-16 01:49:33,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-02-16 01:49:33,127 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 01:49:33,128 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 01:49:33,129 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 01:49:33,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 01:49:33,133 INFO L85 PathProgramCache]: Analyzing trace with hash -645822239, now seen corresponding path program 1 times [2023-02-16 01:49:33,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 01:49:33,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897356900] [2023-02-16 01:49:33,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 01:49:33,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 01:49:33,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 01:49:33,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 01:49:33,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897356900] [2023-02-16 01:49:33,244 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-02-16 01:49:33,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1208708487] [2023-02-16 01:49:33,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 01:49:33,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 01:49:33,245 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 01:49:33,247 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 01:49:33,248 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-16 01:49:33,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 01:49:33,288 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 1 conjunts are in the unsatisfiable core [2023-02-16 01:49:33,291 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 01:49:33,317 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-02-16 01:49:33,319 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-16 01:49:33,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1208708487] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 01:49:33,320 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 01:49:33,320 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-16 01:49:33,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476403455] [2023-02-16 01:49:33,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 01:49:33,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-02-16 01:49:33,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 01:49:33,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-02-16 01:49:33,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-16 01:49:33,362 INFO L87 Difference]: Start difference. First operand has 33 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 19 states have internal predecessors, (28), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) 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) [2023-02-16 01:49:33,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 01:49:33,379 INFO L93 Difference]: Finished difference Result 63 states and 107 transitions. [2023-02-16 01:49:33,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-02-16 01:49:33,381 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 [2023-02-16 01:49:33,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 01:49:33,385 INFO L225 Difference]: With dead ends: 63 [2023-02-16 01:49:33,385 INFO L226 Difference]: Without dead ends: 29 [2023-02-16 01:49:33,388 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 [2023-02-16 01:49:33,391 INFO L413 NwaCegarLoop]: 44 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, 44 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 01:49:33,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 01:49:33,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2023-02-16 01:49:33,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2023-02-16 01:49:33,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 16 states have internal predecessors, (19), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-02-16 01:49:33,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 40 transitions. [2023-02-16 01:49:33,416 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 40 transitions. Word has length 19 [2023-02-16 01:49:33,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 01:49:33,416 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 40 transitions. [2023-02-16 01:49:33,416 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) [2023-02-16 01:49:33,419 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 40 transitions. [2023-02-16 01:49:33,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-02-16 01:49:33,419 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 01:49:33,420 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 01:49:33,426 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-02-16 01:49:33,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-02-16 01:49:33,621 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 01:49:33,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 01:49:33,622 INFO L85 PathProgramCache]: Analyzing trace with hash -1757085840, now seen corresponding path program 1 times [2023-02-16 01:49:33,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 01:49:33,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106270711] [2023-02-16 01:49:33,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 01:49:33,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 01:49:33,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 01:49:34,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-16 01:49:34,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 01:49:34,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-16 01:49:34,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 01:49:34,076 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-02-16 01:49:34,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 01:49:34,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106270711] [2023-02-16 01:49:34,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106270711] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 01:49:34,080 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 01:49:34,080 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-02-16 01:49:34,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291970882] [2023-02-16 01:49:34,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 01:49:34,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-16 01:49:34,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 01:49:34,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-16 01:49:34,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-02-16 01:49:34,085 INFO L87 Difference]: Start difference. First operand 29 states and 40 transitions. Second operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 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) [2023-02-16 01:49:34,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 01:49:34,319 INFO L93 Difference]: Finished difference Result 64 states and 94 transitions. [2023-02-16 01:49:34,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-02-16 01:49:34,321 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 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 20 [2023-02-16 01:49:34,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 01:49:34,322 INFO L225 Difference]: With dead ends: 64 [2023-02-16 01:49:34,322 INFO L226 Difference]: Without dead ends: 46 [2023-02-16 01:49:34,322 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-02-16 01:49:34,323 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 10 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-16 01:49:34,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 157 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-16 01:49:34,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2023-02-16 01:49:34,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 43. [2023-02-16 01:49:34,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 23 states have internal predecessors, (27), 17 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-02-16 01:49:34,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 60 transitions. [2023-02-16 01:49:34,339 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 60 transitions. Word has length 20 [2023-02-16 01:49:34,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 01:49:34,339 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 60 transitions. [2023-02-16 01:49:34,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 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) [2023-02-16 01:49:34,339 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 60 transitions. [2023-02-16 01:49:34,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-02-16 01:49:34,340 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 01:49:34,340 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 01:49:34,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-16 01:49:34,342 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 01:49:34,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 01:49:34,343 INFO L85 PathProgramCache]: Analyzing trace with hash -332038773, now seen corresponding path program 1 times [2023-02-16 01:49:34,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 01:49:34,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287588054] [2023-02-16 01:49:34,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 01:49:34,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 01:49:34,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 01:49:34,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-16 01:49:34,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 01:49:34,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-16 01:49:34,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 01:49:34,631 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-02-16 01:49:34,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 01:49:34,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287588054] [2023-02-16 01:49:34,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287588054] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 01:49:34,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1502063518] [2023-02-16 01:49:34,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 01:49:34,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 01:49:34,633 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 01:49:34,634 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 01:49:34,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 01:49:34,680 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-16 01:49:34,681 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 15 conjunts are in the unsatisfiable core [2023-02-16 01:49:34,682 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 01:49:34,806 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-02-16 01:49:34,806 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 01:49:34,913 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-02-16 01:49:34,913 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1502063518] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 01:49:34,914 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 01:49:34,914 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2023-02-16 01:49:34,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716551091] [2023-02-16 01:49:34,914 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 01:49:34,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-02-16 01:49:34,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 01:49:34,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-02-16 01:49:34,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2023-02-16 01:49:34,916 INFO L87 Difference]: Start difference. First operand 43 states and 60 transitions. Second operand has 15 states, 15 states have (on average 1.8666666666666667) internal successors, (28), 13 states have internal predecessors, (28), 4 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-02-16 01:49:37,677 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-02-16 01:49:39,763 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-02-16 01:49:42,583 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-16 01:49:44,885 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-02-16 01:49:46,970 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-02-16 01:49:49,052 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-16 01:49:50,936 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-16 01:49:53,434 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.41s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-02-16 01:49:56,481 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-02-16 01:49:58,482 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-02-16 01:50:00,484 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-02-16 01:50:02,779 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-02-16 01:50:04,099 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-16 01:50:07,325 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-02-16 01:50:09,327 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-02-16 01:50:11,681 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-02-16 01:50:16,312 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-16 01:50:19,747 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-02-16 01:50:20,911 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-16 01:50:25,021 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-02-16 01:50:26,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 01:50:26,140 INFO L93 Difference]: Finished difference Result 145 states and 234 transitions. [2023-02-16 01:50:26,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-02-16 01:50:26,141 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 1.8666666666666667) internal successors, (28), 13 states have internal predecessors, (28), 4 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2023-02-16 01:50:26,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 01:50:26,143 INFO L225 Difference]: With dead ends: 145 [2023-02-16 01:50:26,144 INFO L226 Difference]: Without dead ends: 123 [2023-02-16 01:50:26,144 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=115, Invalid=347, Unknown=0, NotChecked=0, Total=462 [2023-02-16 01:50:26,145 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 45 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 539 mSolverCounterSat, 166 mSolverCounterUnsat, 16 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 50.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 449 SdHoareTripleChecker+Invalid, 721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 166 IncrementalHoareTripleChecker+Valid, 539 IncrementalHoareTripleChecker+Invalid, 16 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 51.0s IncrementalHoareTripleChecker+Time [2023-02-16 01:50:26,145 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 449 Invalid, 721 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [166 Valid, 539 Invalid, 16 Unknown, 0 Unchecked, 51.0s Time] [2023-02-16 01:50:26,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2023-02-16 01:50:26,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 69. [2023-02-16 01:50:26,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 38 states have (on average 1.263157894736842) internal successors, (48), 42 states have internal predecessors, (48), 26 states have call successors, (26), 4 states have call predecessors, (26), 4 states have return successors, (24), 22 states have call predecessors, (24), 24 states have call successors, (24) [2023-02-16 01:50:26,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 98 transitions. [2023-02-16 01:50:26,171 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 98 transitions. Word has length 22 [2023-02-16 01:50:26,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 01:50:26,172 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 98 transitions. [2023-02-16 01:50:26,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 1.8666666666666667) internal successors, (28), 13 states have internal predecessors, (28), 4 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-02-16 01:50:26,172 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 98 transitions. [2023-02-16 01:50:26,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-02-16 01:50:26,174 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 01:50:26,174 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 01:50:26,181 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-02-16 01:50:26,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-02-16 01:50:26,375 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 01:50:26,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 01:50:26,376 INFO L85 PathProgramCache]: Analyzing trace with hash 1041809680, now seen corresponding path program 1 times [2023-02-16 01:50:26,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 01:50:26,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000636209] [2023-02-16 01:50:26,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 01:50:26,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 01:50:26,382 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-16 01:50:26,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1080852787] [2023-02-16 01:50:26,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 01:50:26,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 01:50:26,383 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 01:50:26,383 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 01:50:26,385 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-16 01:50:26,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 01:50:26,428 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 17 conjunts are in the unsatisfiable core [2023-02-16 01:50:26,431 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 01:50:26,582 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-02-16 01:50:26,583 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 01:50:34,526 WARN L837 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~r~0#1| Int) (|ULTIMATE.start_main_~n~0#1| Int)) (or (= 0 (mod (+ (* 12 |c_ULTIMATE.start_main_~h~0#1| |ULTIMATE.start_main_~r~0#1| |c_ULTIMATE.start_main_~q~0#1|) (* 4294967280 |c_ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~r~0#1| |c_ULTIMATE.start_main_~q~0#1|) (* 4294967295 |c_ULTIMATE.start_main_~h~0#1| |c_ULTIMATE.start_main_~q~0#1| |c_ULTIMATE.start_main_~q~0#1|) (* 4294967292 |c_ULTIMATE.start_main_~p~0#1| |c_ULTIMATE.start_main_~q~0#1| |c_ULTIMATE.start_main_~q~0#1|) (* 4294967284 |c_ULTIMATE.start_main_~h~0#1| |c_ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~n~0#1|) (* |c_ULTIMATE.start_main_~h~0#1| |c_ULTIMATE.start_main_~h~0#1| |c_ULTIMATE.start_main_~h~0#1|) (* 16 |c_ULTIMATE.start_main_~p~0#1| |c_ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~n~0#1|)) 4294967296)) (not (= (mod (+ (* |ULTIMATE.start_main_~r~0#1| |c_ULTIMATE.start_main_~q~0#1|) (* |c_ULTIMATE.start_main_~p~0#1| |c_ULTIMATE.start_main_~p~0#1|)) 4294967296) (mod (* |c_ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~n~0#1|) 4294967296))))) is different from false [2023-02-16 01:50:35,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 01:50:35,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000636209] [2023-02-16 01:50:35,542 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-16 01:50:35,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1080852787] [2023-02-16 01:50:35,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1080852787] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 01:50:35,542 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-02-16 01:50:35,542 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-02-16 01:50:35,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974834828] [2023-02-16 01:50:35,542 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-02-16 01:50:35,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-02-16 01:50:35,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 01:50:35,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-02-16 01:50:35,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=68, Unknown=2, NotChecked=16, Total=110 [2023-02-16 01:50:35,543 INFO L87 Difference]: Start difference. First operand 69 states and 98 transitions. Second operand has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-02-16 01:50:38,467 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-02-16 01:50:40,468 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-02-16 01:50:41,556 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-02-16 01:50:44,499 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-02-16 01:50:46,864 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-16 01:50:47,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 01:50:47,383 INFO L93 Difference]: Finished difference Result 86 states and 118 transitions. [2023-02-16 01:50:47,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-02-16 01:50:47,384 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 30 [2023-02-16 01:50:47,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 01:50:47,384 INFO L225 Difference]: With dead ends: 86 [2023-02-16 01:50:47,384 INFO L226 Difference]: Without dead ends: 63 [2023-02-16 01:50:47,385 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=37, Invalid=97, Unknown=2, NotChecked=20, Total=156 [2023-02-16 01:50:47,385 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 15 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 14 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time [2023-02-16 01:50:47,385 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 94 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 128 Invalid, 4 Unknown, 0 Unchecked, 11.7s Time] [2023-02-16 01:50:47,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2023-02-16 01:50:47,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2023-02-16 01:50:47,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 34 states have (on average 1.2647058823529411) internal successors, (43), 37 states have internal predecessors, (43), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2023-02-16 01:50:47,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 91 transitions. [2023-02-16 01:50:47,395 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 91 transitions. Word has length 30 [2023-02-16 01:50:47,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 01:50:47,395 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 91 transitions. [2023-02-16 01:50:47,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-02-16 01:50:47,395 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 91 transitions. [2023-02-16 01:50:47,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-02-16 01:50:47,396 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 01:50:47,396 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 01:50:47,401 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-02-16 01:50:47,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 01:50:47,597 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 01:50:47,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 01:50:47,598 INFO L85 PathProgramCache]: Analyzing trace with hash -1015454531, now seen corresponding path program 1 times [2023-02-16 01:50:47,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 01:50:47,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60295936] [2023-02-16 01:50:47,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 01:50:47,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 01:50:47,612 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-16 01:50:47,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [274247621] [2023-02-16 01:50:47,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 01:50:47,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 01:50:47,613 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 01:50:47,614 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 01:50:47,615 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-02-16 01:50:47,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 01:50:47,650 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 10 conjunts are in the unsatisfiable core [2023-02-16 01:50:47,652 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 01:50:47,709 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-02-16 01:50:47,709 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 01:50:47,797 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-16 01:50:47,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 01:50:47,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60295936] [2023-02-16 01:50:47,797 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-16 01:50:47,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [274247621] [2023-02-16 01:50:47,798 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [274247621] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 01:50:47,798 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-16 01:50:47,798 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2023-02-16 01:50:47,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823166769] [2023-02-16 01:50:47,798 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-16 01:50:47,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-02-16 01:50:47,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 01:50:47,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-02-16 01:50:47,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-02-16 01:50:47,799 INFO L87 Difference]: Start difference. First operand 63 states and 91 transitions. Second operand has 11 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 9 states have internal predecessors, (31), 4 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) [2023-02-16 01:50:52,888 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-02-16 01:50:54,894 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-02-16 01:50:56,896 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-02-16 01:51:00,719 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-02-16 01:51:02,159 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-02-16 01:51:05,219 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-02-16 01:51:07,221 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-02-16 01:51:12,999 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-16 01:51:15,000 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-16 01:51:17,092 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-02-16 01:51:17,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 01:51:17,134 INFO L93 Difference]: Finished difference Result 86 states and 121 transitions. [2023-02-16 01:51:17,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-02-16 01:51:17,134 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 9 states have internal predecessors, (31), 4 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) Word has length 29 [2023-02-16 01:51:17,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 01:51:17,135 INFO L225 Difference]: With dead ends: 86 [2023-02-16 01:51:17,135 INFO L226 Difference]: Without dead ends: 54 [2023-02-16 01:51:17,136 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 46 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2023-02-16 01:51:17,136 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 9 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 3 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.3s IncrementalHoareTripleChecker+Time [2023-02-16 01:51:17,136 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 171 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 221 Invalid, 9 Unknown, 0 Unchecked, 29.3s Time] [2023-02-16 01:51:17,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2023-02-16 01:51:17,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 52. [2023-02-16 01:51:17,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 24 states have (on average 1.0833333333333333) internal successors, (26), 26 states have internal predecessors, (26), 24 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-02-16 01:51:17,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 72 transitions. [2023-02-16 01:51:17,144 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 72 transitions. Word has length 29 [2023-02-16 01:51:17,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 01:51:17,145 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 72 transitions. [2023-02-16 01:51:17,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 9 states have internal predecessors, (31), 4 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) [2023-02-16 01:51:17,145 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 72 transitions. [2023-02-16 01:51:17,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-02-16 01:51:17,145 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 01:51:17,146 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 01:51:17,157 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-02-16 01:51:17,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 01:51:17,352 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 01:51:17,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 01:51:17,353 INFO L85 PathProgramCache]: Analyzing trace with hash 1797429611, now seen corresponding path program 1 times [2023-02-16 01:51:17,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 01:51:17,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862537485] [2023-02-16 01:51:17,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 01:51:17,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 01:51:17,357 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-16 01:51:17,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [970159592] [2023-02-16 01:51:17,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 01:51:17,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 01:51:17,358 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 01:51:17,359 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 01:51:17,361 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-02-16 01:51:17,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 01:51:17,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 15 conjunts are in the unsatisfiable core [2023-02-16 01:51:17,402 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 01:51:17,474 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-02-16 01:51:17,474 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 01:51:19,486 WARN L859 $PredicateComparison]: unable to prove that (= 0 (mod (+ (* 16 |c_ULTIMATE.start_main_~p~0#1| |c_ULTIMATE.start_main_~q~0#1| |c_ULTIMATE.start_main_~n~0#1|) (* 4294967295 |c_ULTIMATE.start_main_~h~0#1| |c_ULTIMATE.start_main_~q~0#1| |c_ULTIMATE.start_main_~q~0#1|) (* 4294967292 |c_ULTIMATE.start_main_~p~0#1| |c_ULTIMATE.start_main_~q~0#1| |c_ULTIMATE.start_main_~q~0#1|) (* |c_ULTIMATE.start_main_~h~0#1| |c_ULTIMATE.start_main_~h~0#1| |c_ULTIMATE.start_main_~h~0#1|) (* 4294967280 |c_ULTIMATE.start_main_~p~0#1| |c_ULTIMATE.start_main_~q~0#1| |c_ULTIMATE.start_main_~r~0#1|) (* 12 |c_ULTIMATE.start_main_~h~0#1| |c_ULTIMATE.start_main_~q~0#1| |c_ULTIMATE.start_main_~r~0#1|) (* 4294967284 |c_ULTIMATE.start_main_~h~0#1| |c_ULTIMATE.start_main_~q~0#1| |c_ULTIMATE.start_main_~n~0#1|)) 4294967296)) is different from true [2023-02-16 01:51:27,970 WARN L837 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~q~0#1| Int) (|ULTIMATE.start_main_~r~0#1| Int) (|ULTIMATE.start_main_~n~0#1| Int)) (or (= 0 (mod (+ (* 4294967284 |c_ULTIMATE.start_main_~h~0#1| |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~n~0#1|) (* 4294967280 |c_ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~r~0#1|) (* 16 |c_ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~n~0#1|) (* 12 |c_ULTIMATE.start_main_~h~0#1| |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~r~0#1|) (* 4294967295 |c_ULTIMATE.start_main_~h~0#1| |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~q~0#1|) (* |c_ULTIMATE.start_main_~h~0#1| |c_ULTIMATE.start_main_~h~0#1| |c_ULTIMATE.start_main_~h~0#1|) (* 4294967292 |c_ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~q~0#1|)) 4294967296)) (not (= (mod (+ (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~r~0#1|) (* |c_ULTIMATE.start_main_~p~0#1| |c_ULTIMATE.start_main_~p~0#1|)) 4294967296) (mod (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~n~0#1|) 4294967296))))) is different from false [2023-02-16 01:51:28,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 01:51:28,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862537485] [2023-02-16 01:51:28,753 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-16 01:51:28,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [970159592] [2023-02-16 01:51:28,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [970159592] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 01:51:28,753 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-02-16 01:51:28,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-02-16 01:51:28,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690540123] [2023-02-16 01:51:28,753 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-02-16 01:51:28,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-02-16 01:51:28,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 01:51:28,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-02-16 01:51:28,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=56, Unknown=2, NotChecked=30, Total=110 [2023-02-16 01:51:28,754 INFO L87 Difference]: Start difference. First operand 52 states and 72 transitions. Second operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-02-16 01:51:30,761 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-02-16 01:51:33,942 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-02-16 01:51:35,943 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-02-16 01:51:37,944 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-02-16 01:51:39,538 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-02-16 01:51:44,548 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-16 01:51:47,052 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-02-16 01:51:47,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 01:51:47,055 INFO L93 Difference]: Finished difference Result 62 states and 80 transitions. [2023-02-16 01:51:47,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-02-16 01:51:47,056 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 32 [2023-02-16 01:51:47,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 01:51:47,056 INFO L225 Difference]: With dead ends: 62 [2023-02-16 01:51:47,056 INFO L226 Difference]: Without dead ends: 60 [2023-02-16 01:51:47,057 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=35, Invalid=81, Unknown=2, NotChecked=38, Total=156 [2023-02-16 01:51:47,057 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 10 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 3 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.3s IncrementalHoareTripleChecker+Time [2023-02-16 01:51:47,057 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 127 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 177 Invalid, 6 Unknown, 0 Unchecked, 18.3s Time] [2023-02-16 01:51:47,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2023-02-16 01:51:47,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2023-02-16 01:51:47,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 30 states have (on average 1.0666666666666667) internal successors, (32), 32 states have internal predecessors, (32), 24 states have call successors, (24), 5 states have call predecessors, (24), 5 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-02-16 01:51:47,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 78 transitions. [2023-02-16 01:51:47,066 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 78 transitions. Word has length 32 [2023-02-16 01:51:47,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 01:51:47,067 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 78 transitions. [2023-02-16 01:51:47,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-02-16 01:51:47,067 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 78 transitions. [2023-02-16 01:51:47,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-02-16 01:51:47,068 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 01:51:47,068 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 01:51:47,079 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-02-16 01:51:47,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 01:51:47,277 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 01:51:47,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 01:51:47,281 INFO L85 PathProgramCache]: Analyzing trace with hash 1526883210, now seen corresponding path program 1 times [2023-02-16 01:51:47,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 01:51:47,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323515252] [2023-02-16 01:51:47,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 01:51:47,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 01:51:47,288 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-16 01:51:47,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2080769193] [2023-02-16 01:51:47,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 01:51:47,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 01:51:47,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 01:51:47,293 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 01:51:47,294 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-02-16 01:51:47,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 01:51:47,375 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 37 conjunts are in the unsatisfiable core [2023-02-16 01:51:47,377 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 01:51:47,614 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 26 proven. 8 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-02-16 01:51:47,615 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 01:53:32,603 WARN L837 $PredicateComparison]: unable to prove that (forall ((|aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_16_62_64| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_14_62_73_75_184_98| Int) (|aux_mod_v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_12_224| Int) (|v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_14| Int) (|aux_div_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_16_62_64| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_14_62_73_75_184_98_230_121| Int) (|aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_14_62_73_75_184_98_230_121| Int) (|aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_14_62_73_75_184| Int) (|aux_div_aux_mod_v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_14_62_73| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_14_62_73_75_184_98_230| Int) (|aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_14_62_73_75| Int)) (let ((.cse4 (* |aux_div_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_16_62_64| 2)) (.cse19 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_14_62_73_75_184_98_230_121| 4)) (.cse20 (* |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_14_62_73_75_184| 4294967296)) (.cse21 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_14_62_73_75_184_98_230| 4294967296))) (let ((.cse0 (+ .cse19 |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_14_62_73_75_184_98_230_121| .cse20 (* |aux_div_aux_mod_v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_14_62_73| 4294967296) .cse21)) (.cse3 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_14_62_73_75_184_98| 4)) (.cse16 (+ |aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_16_62_64| .cse4)) (.cse5 (* 4294967295 |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_14| |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_14_62_73_75_184_98_230_121|)) (.cse6 (* |aux_mod_v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_12_224| |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_14_62_73_75_184_98_230_121|)) (.cse7 (* 4 |aux_div_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_16_62_64| |aux_div_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_16_62_64|)) (.cse8 (* 4 |aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_16_62_64| |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_14_62_73_75_184_98_230_121|)) (.cse9 (* 4294967292 |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_14| |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_14_62_73_75_184_98_230_121|)) (.cse10 (* 8 |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_14_62_73_75_184_98_230_121| |aux_div_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_16_62_64|)) (.cse11 (* 4 |aux_mod_v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_12_224| |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_14_62_73_75_184_98_230_121|)) (.cse12 (* |aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_16_62_64| |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_14_62_73_75_184_98_230_121|)) (.cse13 (* 4 |aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_16_62_64| |aux_div_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_16_62_64|)) (.cse14 (* 2 |aux_div_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_16_62_64| |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_14_62_73_75_184_98_230_121|)) (.cse15 (* |aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_16_62_64| |aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_16_62_64|)) (.cse2 (+ .cse19 |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_14_62_73_75_184_98_230_121| .cse21)) (.cse1 (+ .cse19 |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_14_62_73_75_184_98_230_121|)) (.cse18 (* |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_14_62_73_75| 4)) (.cse17 (+ .cse19 |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_14_62_73_75_184_98_230_121| .cse20 .cse21))) (or (<= 4294967296 .cse0) (>= |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_14_62_73_75_184_98_230_121| 4) (< .cse1 0) (< .cse2 .cse3) (< .cse0 0) (>= |aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_16_62_64| 2) (<= 4294967296 .cse2) (< |aux_mod_v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_12_224| (mod (+ .cse4 (* |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_14_62_73_75| 3)) 4294967296)) (<= (+ .cse3 4) .cse2) (= 0 (mod (+ .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 (* 4 |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_14_62_73_75_184_98_230_121| |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_14_62_73_75_184_98_230_121|) .cse11 .cse12 .cse13 .cse14 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_14_62_73_75_184_98_230_121| |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_14_62_73_75_184_98_230_121|) .cse15) 4294967296)) (< .cse16 0) (>= |aux_mod_v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_12_224| 4294967296) (<= 4294967296 .cse16) (<= 4294967296 .cse17) (not (= 0 (mod (+ .cse5 .cse6 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_14_62_73_75_184_98| |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_14_62_73_75_184_98_230_121|) .cse7 .cse8 .cse9 .cse10 (* 4 |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_14_62_73_75_184_98| |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_14_62_73_75_184_98_230_121|) .cse11 .cse12 .cse13 .cse14 .cse15) 4294967296))) (< .cse17 .cse18) (> 0 |aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_16_62_64|) (> 0 |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_14_62_73_75_184_98_230_121|) (< .cse2 0) (<= 4294967296 .cse1) (< .cse17 0) (<= (+ .cse18 4) .cse17))))) is different from false [2023-02-16 01:53:34,606 WARN L859 $PredicateComparison]: unable to prove that (forall ((|aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_16_62_64| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_14_62_73_75_184_98| Int) (|aux_mod_v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_12_224| Int) (|v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_14| Int) (|aux_div_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_16_62_64| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_14_62_73_75_184_98_230_121| Int) (|aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_14_62_73_75_184_98_230_121| Int) (|aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_14_62_73_75_184| Int) (|aux_div_aux_mod_v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_14_62_73| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_14_62_73_75_184_98_230| Int) (|aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_14_62_73_75| Int)) (let ((.cse4 (* |aux_div_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_16_62_64| 2)) (.cse19 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_14_62_73_75_184_98_230_121| 4)) (.cse20 (* |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_14_62_73_75_184| 4294967296)) (.cse21 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_14_62_73_75_184_98_230| 4294967296))) (let ((.cse0 (+ .cse19 |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_14_62_73_75_184_98_230_121| .cse20 (* |aux_div_aux_mod_v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_14_62_73| 4294967296) .cse21)) (.cse3 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_14_62_73_75_184_98| 4)) (.cse16 (+ |aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_16_62_64| .cse4)) (.cse5 (* 4294967295 |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_14| |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_14_62_73_75_184_98_230_121|)) (.cse6 (* |aux_mod_v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_12_224| |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_14_62_73_75_184_98_230_121|)) (.cse7 (* 4 |aux_div_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_16_62_64| |aux_div_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_16_62_64|)) (.cse8 (* 4 |aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_16_62_64| |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_14_62_73_75_184_98_230_121|)) (.cse9 (* 4294967292 |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_14| |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_14_62_73_75_184_98_230_121|)) (.cse10 (* 8 |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_14_62_73_75_184_98_230_121| |aux_div_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_16_62_64|)) (.cse11 (* 4 |aux_mod_v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_12_224| |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_14_62_73_75_184_98_230_121|)) (.cse12 (* |aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_16_62_64| |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_14_62_73_75_184_98_230_121|)) (.cse13 (* 4 |aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_16_62_64| |aux_div_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_16_62_64|)) (.cse14 (* 2 |aux_div_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_16_62_64| |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_14_62_73_75_184_98_230_121|)) (.cse15 (* |aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_16_62_64| |aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_16_62_64|)) (.cse2 (+ .cse19 |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_14_62_73_75_184_98_230_121| .cse21)) (.cse1 (+ .cse19 |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_14_62_73_75_184_98_230_121|)) (.cse18 (* |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_14_62_73_75| 4)) (.cse17 (+ .cse19 |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_14_62_73_75_184_98_230_121| .cse20 .cse21))) (or (<= 4294967296 .cse0) (>= |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_14_62_73_75_184_98_230_121| 4) (< .cse1 0) (< .cse2 .cse3) (< .cse0 0) (>= |aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_16_62_64| 2) (<= 4294967296 .cse2) (< |aux_mod_v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_12_224| (mod (+ .cse4 (* |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_14_62_73_75| 3)) 4294967296)) (<= (+ .cse3 4) .cse2) (= 0 (mod (+ .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 (* 4 |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_14_62_73_75_184_98_230_121| |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_14_62_73_75_184_98_230_121|) .cse11 .cse12 .cse13 .cse14 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_14_62_73_75_184_98_230_121| |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_14_62_73_75_184_98_230_121|) .cse15) 4294967296)) (< .cse16 0) (>= |aux_mod_v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_12_224| 4294967296) (<= 4294967296 .cse16) (<= 4294967296 .cse17) (not (= 0 (mod (+ .cse5 .cse6 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_14_62_73_75_184_98| |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_14_62_73_75_184_98_230_121|) .cse7 .cse8 .cse9 .cse10 (* 4 |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_14_62_73_75_184_98| |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_14_62_73_75_184_98_230_121|) .cse11 .cse12 .cse13 .cse14 .cse15) 4294967296))) (< .cse17 .cse18) (> 0 |aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_16_62_64|) (> 0 |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_14_62_73_75_184_98_230_121|) (< .cse2 0) (<= 4294967296 .cse1) (< .cse17 0) (<= (+ .cse18 4) .cse17))))) is different from true