./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops-crafted-1/vnew2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0da7079-8f69-4fd2-869b-5963173193c6/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0da7079-8f69-4fd2-869b-5963173193c6/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0da7079-8f69-4fd2-869b-5963173193c6/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0da7079-8f69-4fd2-869b-5963173193c6/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/loops-crafted-1/vnew2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0da7079-8f69-4fd2-869b-5963173193c6/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0da7079-8f69-4fd2-869b-5963173193c6/bin/utaipan-gh47qXpMRh --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6cb26fc448cefa547e2463448c16c0efba841bf620bbd2ba420ae15e288e3a3f --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 08:35:50,425 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 08:35:50,426 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 08:35:50,439 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 08:35:50,440 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 08:35:50,440 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 08:35:50,441 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 08:35:50,442 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 08:35:50,443 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 08:35:50,444 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 08:35:50,445 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 08:35:50,445 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 08:35:50,446 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 08:35:50,446 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 08:35:50,447 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 08:35:50,448 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 08:35:50,448 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 08:35:50,457 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 08:35:50,458 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 08:35:50,460 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 08:35:50,461 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 08:35:50,463 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 08:35:50,464 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 08:35:50,464 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 08:35:50,467 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 08:35:50,467 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 08:35:50,468 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 08:35:50,468 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 08:35:50,469 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 08:35:50,470 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 08:35:50,470 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 08:35:50,471 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 08:35:50,475 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 08:35:50,476 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 08:35:50,476 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 08:35:50,477 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 08:35:50,477 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 08:35:50,477 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 08:35:50,478 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 08:35:50,478 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 08:35:50,479 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 08:35:50,480 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0da7079-8f69-4fd2-869b-5963173193c6/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 08:35:50,515 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 08:35:50,515 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 08:35:50,516 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 08:35:50,516 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 08:35:50,516 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 08:35:50,516 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 08:35:50,517 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 08:35:50,517 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 08:35:50,517 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 08:35:50,517 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 08:35:50,517 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 08:35:50,517 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 08:35:50,517 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 08:35:50,518 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 08:35:50,518 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 08:35:50,518 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 08:35:50,518 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 08:35:50,518 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 08:35:50,519 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 08:35:50,519 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 08:35:50,519 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 08:35:50,519 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 08:35:50,519 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 08:35:50,520 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 08:35:50,520 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 08:35:50,520 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 08:35:50,520 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 08:35:50,520 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 08:35:50,520 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 08:35:50,520 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 08:35:50,521 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 08:35:50,521 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 08:35:50,521 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:35:50,521 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 08:35:50,521 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 08:35:50,521 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 08:35:50,521 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 08:35:50,522 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 08:35:50,522 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 08:35:50,522 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 08:35:50,522 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 08:35:50,522 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0da7079-8f69-4fd2-869b-5963173193c6/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0da7079-8f69-4fd2-869b-5963173193c6/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6cb26fc448cefa547e2463448c16c0efba841bf620bbd2ba420ae15e288e3a3f [2022-12-14 08:35:50,709 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 08:35:50,728 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 08:35:50,731 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 08:35:50,732 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 08:35:50,732 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 08:35:50,733 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0da7079-8f69-4fd2-869b-5963173193c6/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/loops-crafted-1/vnew2.c [2022-12-14 08:35:53,375 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 08:35:53,506 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 08:35:53,506 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0da7079-8f69-4fd2-869b-5963173193c6/sv-benchmarks/c/loops-crafted-1/vnew2.c [2022-12-14 08:35:53,510 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0da7079-8f69-4fd2-869b-5963173193c6/bin/utaipan-gh47qXpMRh/data/8b806a783/45514858232d4966867b2a2ec2c82ffd/FLAG2523b4d78 [2022-12-14 08:35:53,936 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0da7079-8f69-4fd2-869b-5963173193c6/bin/utaipan-gh47qXpMRh/data/8b806a783/45514858232d4966867b2a2ec2c82ffd [2022-12-14 08:35:53,938 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 08:35:53,939 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 08:35:53,941 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 08:35:53,941 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 08:35:53,943 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 08:35:53,944 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:35:53" (1/1) ... [2022-12-14 08:35:53,945 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@501ceedf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:35:53, skipping insertion in model container [2022-12-14 08:35:53,945 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:35:53" (1/1) ... [2022-12-14 08:35:53,951 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 08:35:53,961 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 08:35:54,060 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0da7079-8f69-4fd2-869b-5963173193c6/sv-benchmarks/c/loops-crafted-1/vnew2.c[403,416] [2022-12-14 08:35:54,070 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:35:54,084 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 08:35:54,096 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0da7079-8f69-4fd2-869b-5963173193c6/sv-benchmarks/c/loops-crafted-1/vnew2.c[403,416] [2022-12-14 08:35:54,100 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:35:54,110 INFO L208 MainTranslator]: Completed translation [2022-12-14 08:35:54,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:35:54 WrapperNode [2022-12-14 08:35:54,110 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 08:35:54,111 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 08:35:54,111 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 08:35:54,111 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 08:35:54,116 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:35:54" (1/1) ... [2022-12-14 08:35:54,121 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:35:54" (1/1) ... [2022-12-14 08:35:54,133 INFO L138 Inliner]: procedures = 14, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 48 [2022-12-14 08:35:54,133 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 08:35:54,133 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 08:35:54,134 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 08:35:54,134 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 08:35:54,140 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:35:54" (1/1) ... [2022-12-14 08:35:54,140 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:35:54" (1/1) ... [2022-12-14 08:35:54,141 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:35:54" (1/1) ... [2022-12-14 08:35:54,141 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:35:54" (1/1) ... [2022-12-14 08:35:54,143 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:35:54" (1/1) ... [2022-12-14 08:35:54,145 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:35:54" (1/1) ... [2022-12-14 08:35:54,145 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:35:54" (1/1) ... [2022-12-14 08:35:54,146 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:35:54" (1/1) ... [2022-12-14 08:35:54,147 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 08:35:54,147 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 08:35:54,148 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 08:35:54,148 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 08:35:54,148 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:35:54" (1/1) ... [2022-12-14 08:35:54,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:35:54,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0da7079-8f69-4fd2-869b-5963173193c6/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:35:54,170 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0da7079-8f69-4fd2-869b-5963173193c6/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 08:35:54,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0da7079-8f69-4fd2-869b-5963173193c6/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 08:35:54,207 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 08:35:54,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 08:35:54,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 08:35:54,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 08:35:54,260 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 08:35:54,261 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 08:35:54,345 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 08:35:54,359 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 08:35:54,359 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 08:35:54,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:35:54 BoogieIcfgContainer [2022-12-14 08:35:54,361 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 08:35:54,363 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 08:35:54,363 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 08:35:54,365 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 08:35:54,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 08:35:53" (1/3) ... [2022-12-14 08:35:54,366 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6863ba48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:35:54, skipping insertion in model container [2022-12-14 08:35:54,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:35:54" (2/3) ... [2022-12-14 08:35:54,367 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6863ba48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:35:54, skipping insertion in model container [2022-12-14 08:35:54,367 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:35:54" (3/3) ... [2022-12-14 08:35:54,368 INFO L112 eAbstractionObserver]: Analyzing ICFG vnew2.c [2022-12-14 08:35:54,382 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 08:35:54,383 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 08:35:54,417 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 08:35:54,421 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@485af164, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 08:35:54,422 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 08:35:54,425 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:35:54,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 08:35:54,429 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:35:54,429 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-14 08:35:54,430 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:35:54,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:35:54,434 INFO L85 PathProgramCache]: Analyzing trace with hash 2069066476, now seen corresponding path program 1 times [2022-12-14 08:35:54,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:35:54,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108155055] [2022-12-14 08:35:54,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:35:54,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:35:54,511 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 08:35:54,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2134084629] [2022-12-14 08:35:54,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:35:54,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:35:54,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0da7079-8f69-4fd2-869b-5963173193c6/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:35:54,513 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0da7079-8f69-4fd2-869b-5963173193c6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:35:54,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0da7079-8f69-4fd2-869b-5963173193c6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 08:35:54,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:35:54,567 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-14 08:35:54,571 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:35:54,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:35:54,638 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 08:35:54,639 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:35:54,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108155055] [2022-12-14 08:35:54,639 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 08:35:54,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2134084629] [2022-12-14 08:35:54,640 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2134084629] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:35:54,640 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:35:54,640 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 08:35:54,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816462422] [2022-12-14 08:35:54,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:35:54,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 08:35:54,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:35:54,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 08:35:54,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 08:35:54,674 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:35:54,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:35:54,724 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2022-12-14 08:35:54,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 08:35:54,726 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-12-14 08:35:54,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:35:54,731 INFO L225 Difference]: With dead ends: 26 [2022-12-14 08:35:54,731 INFO L226 Difference]: Without dead ends: 8 [2022-12-14 08:35:54,733 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 08:35:54,736 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 9 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 08:35:54,736 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 20 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 08:35:54,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2022-12-14 08:35:54,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2022-12-14 08:35:54,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:35:54,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2022-12-14 08:35:54,756 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 6 [2022-12-14 08:35:54,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:35:54,757 INFO L495 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2022-12-14 08:35:54,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:35:54,757 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2022-12-14 08:35:54,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 08:35:54,757 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:35:54,757 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:35:54,763 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0da7079-8f69-4fd2-869b-5963173193c6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 08:35:54,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0da7079-8f69-4fd2-869b-5963173193c6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-12-14 08:35:54,960 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:35:54,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:35:54,962 INFO L85 PathProgramCache]: Analyzing trace with hash -307761058, now seen corresponding path program 1 times [2022-12-14 08:35:54,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:35:54,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782774927] [2022-12-14 08:35:54,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:35:54,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:35:55,029 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 08:35:55,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [188523784] [2022-12-14 08:35:55,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:35:55,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:35:55,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0da7079-8f69-4fd2-869b-5963173193c6/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:35:55,035 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0da7079-8f69-4fd2-869b-5963173193c6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:35:55,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0da7079-8f69-4fd2-869b-5963173193c6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 08:35:55,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:35:55,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 22 conjunts are in the unsatisfiable core [2022-12-14 08:35:55,220 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:35:55,347 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:35:55,347 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 08:35:55,588 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:35:55,588 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:35:55,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782774927] [2022-12-14 08:35:55,589 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 08:35:55,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [188523784] [2022-12-14 08:35:55,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [188523784] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 08:35:55,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [964283530] [2022-12-14 08:35:55,604 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2022-12-14 08:35:55,604 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 08:35:55,607 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 08:35:55,612 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 08:35:55,612 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 08:35:55,759 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 08:35:56,027 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '127#(and (<= 0 |ULTIMATE.start_main_~k~0#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (and (= (mod |ULTIMATE.start_main_~j~0#1| 4294967296) (mod |ULTIMATE.start_main_~k~0#1| 4294967296)) (= (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (mod |ULTIMATE.start_main_~j~0#1| 4294967296)) (not (= (mod (mod (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (mod (+ ~SIZE~0 2) 4294967296)) 4294967296) 0))) 1 0)) (= ~SIZE~0 20000001) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (< 0 (mod |ULTIMATE.start_main_~n~0#1| 4294967296)) (not (< (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (mod |ULTIMATE.start_main_~n~0#1| 4294967296))) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-12-14 08:35:56,028 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 08:35:56,028 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-14 08:35:56,028 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2022-12-14 08:35:56,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779287955] [2022-12-14 08:35:56,028 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-14 08:35:56,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 08:35:56,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:35:56,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 08:35:56,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=208, Unknown=0, NotChecked=0, Total=272 [2022-12-14 08:35:56,031 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand has 12 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 11 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:35:59,643 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 [] [2022-12-14 08:36:00,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:36:00,851 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2022-12-14 08:36:00,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-14 08:36:00,851 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 11 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-12-14 08:36:00,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:36:00,852 INFO L225 Difference]: With dead ends: 19 [2022-12-14 08:36:00,852 INFO L226 Difference]: Without dead ends: 11 [2022-12-14 08:36:00,852 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2022-12-14 08:36:00,854 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 23 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-12-14 08:36:00,854 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 11 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 38 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-12-14 08:36:00,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-12-14 08:36:00,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2022-12-14 08:36:00,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:36:00,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2022-12-14 08:36:00,859 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 7 [2022-12-14 08:36:00,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:36:00,859 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2022-12-14 08:36:00,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 11 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:36:00,859 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2022-12-14 08:36:00,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 08:36:00,860 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:36:00,860 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1] [2022-12-14 08:36:00,865 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0da7079-8f69-4fd2-869b-5963173193c6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 08:36:01,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0da7079-8f69-4fd2-869b-5963173193c6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:36:01,062 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:36:01,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:36:01,064 INFO L85 PathProgramCache]: Analyzing trace with hash -1421852820, now seen corresponding path program 2 times [2022-12-14 08:36:01,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:36:01,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412250821] [2022-12-14 08:36:01,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:36:01,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:36:01,113 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 08:36:01,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1887218317] [2022-12-14 08:36:01,113 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 08:36:01,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:36:01,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0da7079-8f69-4fd2-869b-5963173193c6/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:36:01,115 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0da7079-8f69-4fd2-869b-5963173193c6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:36:01,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0da7079-8f69-4fd2-869b-5963173193c6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 08:36:01,173 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-12-14 08:36:01,173 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 08:36:01,175 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 40 conjunts are in the unsatisfiable core [2022-12-14 08:36:01,176 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:36:01,321 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:36:01,321 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 08:36:01,808 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:36:01,808 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:36:01,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412250821] [2022-12-14 08:36:01,809 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 08:36:01,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1887218317] [2022-12-14 08:36:01,809 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1887218317] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 08:36:01,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1212881321] [2022-12-14 08:36:01,811 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2022-12-14 08:36:01,811 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 08:36:01,812 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 08:36:01,812 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 08:36:01,812 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 08:36:01,876 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 08:36:02,314 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '256#(and (<= 0 |ULTIMATE.start_main_~k~0#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (and (= (mod |ULTIMATE.start_main_~j~0#1| 4294967296) (mod |ULTIMATE.start_main_~k~0#1| 4294967296)) (= (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (mod |ULTIMATE.start_main_~j~0#1| 4294967296)) (not (= (mod (mod (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (mod (+ ~SIZE~0 2) 4294967296)) 4294967296) 0))) 1 0)) (= ~SIZE~0 20000001) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (< 0 (mod |ULTIMATE.start_main_~n~0#1| 4294967296)) (not (< (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (mod |ULTIMATE.start_main_~n~0#1| 4294967296))) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-12-14 08:36:02,315 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 08:36:02,315 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-14 08:36:02,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2022-12-14 08:36:02,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262267379] [2022-12-14 08:36:02,315 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-14 08:36:02,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-14 08:36:02,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:36:02,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-14 08:36:02,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=397, Unknown=0, NotChecked=0, Total=506 [2022-12-14 08:36:02,317 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand has 18 states, 18 states have (on average 1.0555555555555556) internal successors, (19), 17 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:39:38,377 WARN L233 SmtUtils]: Spent 3.50m on a formula simplification. DAG size of input: 94 DAG size of output: 73 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:39:40,388 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-12-14 08:39:42,394 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-12-14 08:40:54,136 WARN L233 SmtUtils]: Spent 1.01m on a formula simplification. DAG size of input: 73 DAG size of output: 66 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:40:57,012 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-12-14 08:40:59,017 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-12-14 08:41:00,524 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-12-14 08:41:25,826 WARN L233 SmtUtils]: Spent 16.55s on a formula simplification. DAG size of input: 57 DAG size of output: 52 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:41:27,833 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-12-14 08:42:46,607 WARN L233 SmtUtils]: Spent 1.10m on a formula simplification. DAG size of input: 78 DAG size of output: 67 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:42:48,060 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-12-14 08:45:18,728 WARN L233 SmtUtils]: Spent 2.43m on a formula simplification. DAG size of input: 96 DAG size of output: 78 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:45:20,733 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-12-14 08:45:22,743 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-12-14 08:45:24,749 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-12-14 08:45:38,002 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-12-14 08:45:40,007 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-12-14 08:46:17,757 WARN L233 SmtUtils]: Spent 27.29s on a formula simplification. DAG size of input: 62 DAG size of output: 55 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:46:19,762 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-12-14 08:47:17,209 WARN L233 SmtUtils]: Spent 47.31s on a formula simplification. DAG size of input: 80 DAG size of output: 71 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:47:19,223 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-12-14 08:47:22,345 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-12-14 08:47:32,233 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-12-14 08:48:04,705 WARN L233 SmtUtils]: Spent 18.43s on a formula simplification. DAG size of input: 64 DAG size of output: 59 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:48:07,479 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 [] [2022-12-14 08:48:26,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:48:26,432 INFO L93 Difference]: Finished difference Result 31 states and 36 transitions. [2022-12-14 08:48:26,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-12-14 08:48:26,433 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 1.0555555555555556) internal successors, (19), 17 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-12-14 08:48:26,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:48:26,433 INFO L225 Difference]: With dead ends: 31 [2022-12-14 08:48:26,433 INFO L226 Difference]: Without dead ends: 17 [2022-12-14 08:48:26,434 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 268 ImplicationChecksByTransitivity, 707.7s TimeCoverageRelationStatistics Valid=357, Invalid=1013, Unknown=36, NotChecked=0, Total=1406 [2022-12-14 08:48:26,434 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 62 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 7 mSolverCounterUnsat, 14 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 14 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.2s IncrementalHoareTripleChecker+Time [2022-12-14 08:48:26,434 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 20 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 100 Invalid, 14 Unknown, 0 Unchecked, 37.2s Time] [2022-12-14 08:48:26,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-12-14 08:48:26,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-12-14 08:48:26,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.0625) internal successors, (17), 16 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:48:26,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2022-12-14 08:48:26,439 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 10 [2022-12-14 08:48:26,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:48:26,439 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2022-12-14 08:48:26,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 1.0555555555555556) internal successors, (19), 17 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:48:26,439 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2022-12-14 08:48:26,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-14 08:48:26,440 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:48:26,440 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1] [2022-12-14 08:48:26,444 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0da7079-8f69-4fd2-869b-5963173193c6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 08:48:26,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0da7079-8f69-4fd2-869b-5963173193c6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:48:26,641 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:48:26,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:48:26,643 INFO L85 PathProgramCache]: Analyzing trace with hash 655374892, now seen corresponding path program 3 times [2022-12-14 08:48:26,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:48:26,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248402375] [2022-12-14 08:48:26,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:48:26,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:48:26,689 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 08:48:26,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1187861129] [2022-12-14 08:48:26,689 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-14 08:48:26,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:48:26,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0da7079-8f69-4fd2-869b-5963173193c6/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:48:26,691 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0da7079-8f69-4fd2-869b-5963173193c6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:48:26,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0da7079-8f69-4fd2-869b-5963173193c6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 08:48:26,774 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-14 08:48:26,774 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 08:48:26,776 WARN L261 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 76 conjunts are in the unsatisfiable core [2022-12-14 08:48:26,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:48:26,985 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:48:26,985 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 08:48:34,272 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:48:34,273 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:48:34,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248402375] [2022-12-14 08:48:34,273 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 08:48:34,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1187861129] [2022-12-14 08:48:34,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1187861129] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 08:48:34,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1885956525] [2022-12-14 08:48:34,274 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2022-12-14 08:48:34,274 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 08:48:34,274 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 08:48:34,274 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 08:48:34,274 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 08:48:34,324 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 08:48:38,479 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '481#(and (<= 0 |ULTIMATE.start_main_~k~0#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (and (= (mod |ULTIMATE.start_main_~j~0#1| 4294967296) (mod |ULTIMATE.start_main_~k~0#1| 4294967296)) (= (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (mod |ULTIMATE.start_main_~j~0#1| 4294967296)) (not (= (mod (mod (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (mod (+ ~SIZE~0 2) 4294967296)) 4294967296) 0))) 1 0)) (= ~SIZE~0 20000001) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (< 0 (mod |ULTIMATE.start_main_~n~0#1| 4294967296)) (not (< (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (mod |ULTIMATE.start_main_~n~0#1| 4294967296))) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-12-14 08:48:38,479 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 08:48:38,479 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-14 08:48:38,479 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 29 [2022-12-14 08:48:38,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902127014] [2022-12-14 08:48:38,479 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-14 08:48:38,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-12-14 08:48:38,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:48:38,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-12-14 08:48:38,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=937, Unknown=0, NotChecked=0, Total=1190 [2022-12-14 08:48:38,482 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand has 30 states, 30 states have (on average 1.0333333333333334) internal successors, (31), 29 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:48:40,590 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse1 (mod |c_ULTIMATE.start_main_~j~0#1| 4294967296)) (.cse0 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296)) (.cse3 (mod (+ |c_ULTIMATE.start_main_~i~0#1| 27) 4294967296)) (.cse13 (mod (+ 21 |c_ULTIMATE.start_main_~i~0#1|) 4294967296)) (.cse5 (mod (+ |c_ULTIMATE.start_main_~i~0#1| 24) 4294967296)) (.cse8 (mod (+ 9 |c_ULTIMATE.start_main_~i~0#1|) 4294967296)) (.cse17 (mod (+ 12 |c_ULTIMATE.start_main_~i~0#1|) 4294967296)) (.cse19 (mod (+ 15 |c_ULTIMATE.start_main_~i~0#1|) 4294967296)) (.cse14 (mod (+ |c_ULTIMATE.start_main_~i~0#1| 18) 4294967296)) (.cse6 (mod (+ 3 |c_ULTIMATE.start_main_~i~0#1|) 4294967296)) (.cse10 (mod (+ 6 |c_ULTIMATE.start_main_~i~0#1|) 4294967296)) (.cse4 (mod (+ 2 c_~SIZE~0) 4294967296))) (and (= .cse0 .cse1) (or (let ((.cse2 (mod (+ |c_ULTIMATE.start_main_~j~0#1| 27) 4294967296))) (and (= (mod (+ 27 |c_ULTIMATE.start_main_~k~0#1|) 4294967296) .cse2) (= .cse3 .cse2) (not (= (mod (mod .cse3 .cse4) 4294967296) 0)))) (< .cse3 (+ .cse5 1))) (or (< .cse6 (+ .cse0 1)) (let ((.cse7 (mod (+ |c_ULTIMATE.start_main_~j~0#1| 3) 4294967296))) (and (= .cse7 (mod (+ 3 |c_ULTIMATE.start_main_~k~0#1|) 4294967296)) (not (= (mod (mod .cse6 .cse4) 4294967296) 0)) (= .cse6 .cse7)))) (or (let ((.cse9 (mod (+ |c_ULTIMATE.start_main_~j~0#1| 9) 4294967296))) (and (= .cse8 .cse9) (not (= (mod (mod .cse8 .cse4) 4294967296) 0)) (= (mod (+ 9 |c_ULTIMATE.start_main_~k~0#1|) 4294967296) .cse9))) (< .cse8 (+ .cse10 1))) (= .cse1 (mod |c_ULTIMATE.start_main_~k~0#1| 4294967296)) (not (= (mod (mod .cse0 .cse4) 4294967296) 0)) (let ((.cse11 (mod (+ 30 |c_ULTIMATE.start_main_~i~0#1|) 4294967296))) (or (< .cse11 (+ .cse3 1)) (let ((.cse12 (mod (+ |c_ULTIMATE.start_main_~j~0#1| 30) 4294967296))) (and (= (mod (+ 30 |c_ULTIMATE.start_main_~k~0#1|) 4294967296) .cse12) (= .cse11 .cse12) (not (= (mod (mod .cse11 .cse4) 4294967296) 0)))))) (or (< .cse13 (+ .cse14 1)) (let ((.cse15 (mod (+ |c_ULTIMATE.start_main_~j~0#1| 21) 4294967296))) (and (= (mod (+ 21 |c_ULTIMATE.start_main_~k~0#1|) 4294967296) .cse15) (not (= (mod (mod .cse13 .cse4) 4294967296) 0)) (= .cse15 .cse13)))) (or (< .cse5 (+ .cse13 1)) (let ((.cse16 (mod (+ |c_ULTIMATE.start_main_~j~0#1| 24) 4294967296))) (and (not (= (mod (mod .cse5 .cse4) 4294967296) 0)) (= .cse16 (mod (+ |c_ULTIMATE.start_main_~k~0#1| 24) 4294967296)) (= .cse16 .cse5)))) (or (< .cse17 (+ .cse8 1)) (let ((.cse18 (mod (+ |c_ULTIMATE.start_main_~j~0#1| 12) 4294967296))) (and (= .cse17 .cse18) (not (= (mod (mod .cse17 .cse4) 4294967296) 0)) (= (mod (+ 12 |c_ULTIMATE.start_main_~k~0#1|) 4294967296) .cse18)))) (or (let ((.cse20 (mod (+ |c_ULTIMATE.start_main_~j~0#1| 15) 4294967296))) (and (= .cse19 .cse20) (= .cse20 (mod (+ 15 |c_ULTIMATE.start_main_~k~0#1|) 4294967296)) (not (= (mod (mod .cse19 .cse4) 4294967296) 0)))) (< .cse19 (+ .cse17 1))) (= 20000001 c_~SIZE~0) (or (< .cse14 (+ .cse19 1)) (let ((.cse21 (mod (+ |c_ULTIMATE.start_main_~j~0#1| 18) 4294967296))) (and (not (= (mod (mod .cse14 .cse4) 4294967296) 0)) (= .cse21 .cse14) (= .cse21 (mod (+ 18 |c_ULTIMATE.start_main_~k~0#1|) 4294967296))))) (or (< .cse10 (+ .cse6 1)) (let ((.cse22 (mod (+ |c_ULTIMATE.start_main_~j~0#1| 6) 4294967296))) (and (= .cse22 (mod (+ 6 |c_ULTIMATE.start_main_~k~0#1|) 4294967296)) (= .cse22 .cse10) (not (= (mod (mod .cse10 .cse4) 4294967296) 0))))))) is different from false [2022-12-14 08:48:43,046 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse5 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296)) (.cse10 (mod (+ 21 |c_ULTIMATE.start_main_~i~0#1|) 4294967296)) (.cse3 (mod (+ |c_ULTIMATE.start_main_~i~0#1| 24) 4294967296)) (.cse7 (mod (+ 9 |c_ULTIMATE.start_main_~i~0#1|) 4294967296)) (.cse15 (mod (+ 12 |c_ULTIMATE.start_main_~i~0#1|) 4294967296)) (.cse17 (mod (+ 15 |c_ULTIMATE.start_main_~i~0#1|) 4294967296)) (.cse11 (mod (+ |c_ULTIMATE.start_main_~i~0#1| 18) 4294967296)) (.cse4 (mod (+ 3 |c_ULTIMATE.start_main_~i~0#1|) 4294967296)) (.cse9 (mod (+ 6 |c_ULTIMATE.start_main_~i~0#1|) 4294967296)) (.cse2 (mod (+ 2 c_~SIZE~0) 4294967296))) (and (let ((.cse1 (mod (+ |c_ULTIMATE.start_main_~i~0#1| 27) 4294967296))) (or (let ((.cse0 (mod (+ |c_ULTIMATE.start_main_~j~0#1| 27) 4294967296))) (and (= (mod (+ 27 |c_ULTIMATE.start_main_~k~0#1|) 4294967296) .cse0) (= .cse1 .cse0) (not (= (mod (mod .cse1 .cse2) 4294967296) 0)))) (< .cse1 (+ .cse3 1)))) (or (< .cse4 (+ .cse5 1)) (let ((.cse6 (mod (+ |c_ULTIMATE.start_main_~j~0#1| 3) 4294967296))) (and (= .cse6 (mod (+ 3 |c_ULTIMATE.start_main_~k~0#1|) 4294967296)) (not (= (mod (mod .cse4 .cse2) 4294967296) 0)) (= .cse4 .cse6)))) (or (let ((.cse8 (mod (+ |c_ULTIMATE.start_main_~j~0#1| 9) 4294967296))) (and (= .cse7 .cse8) (not (= (mod (mod .cse7 .cse2) 4294967296) 0)) (= (mod (+ 9 |c_ULTIMATE.start_main_~k~0#1|) 4294967296) .cse8))) (< .cse7 (+ .cse9 1))) (or (< .cse10 (+ .cse11 1)) (let ((.cse12 (mod (+ |c_ULTIMATE.start_main_~j~0#1| 21) 4294967296))) (and (= (mod (+ 21 |c_ULTIMATE.start_main_~k~0#1|) 4294967296) .cse12) (not (= (mod (mod .cse10 .cse2) 4294967296) 0)) (= .cse12 .cse10)))) (or (< .cse5 (mod |c_ULTIMATE.start_main_~n~0#1| 4294967296)) (let ((.cse13 (mod |c_ULTIMATE.start_main_~j~0#1| 4294967296))) (and (= .cse5 .cse13) (= .cse13 (mod |c_ULTIMATE.start_main_~k~0#1| 4294967296)) (not (= (mod (mod .cse5 .cse2) 4294967296) 0))))) (or (< .cse3 (+ .cse10 1)) (let ((.cse14 (mod (+ |c_ULTIMATE.start_main_~j~0#1| 24) 4294967296))) (and (not (= (mod (mod .cse3 .cse2) 4294967296) 0)) (= .cse14 (mod (+ |c_ULTIMATE.start_main_~k~0#1| 24) 4294967296)) (= .cse14 .cse3)))) (or (< .cse15 (+ .cse7 1)) (let ((.cse16 (mod (+ |c_ULTIMATE.start_main_~j~0#1| 12) 4294967296))) (and (= .cse15 .cse16) (not (= (mod (mod .cse15 .cse2) 4294967296) 0)) (= (mod (+ 12 |c_ULTIMATE.start_main_~k~0#1|) 4294967296) .cse16)))) (or (let ((.cse18 (mod (+ |c_ULTIMATE.start_main_~j~0#1| 15) 4294967296))) (and (= .cse17 .cse18) (= .cse18 (mod (+ 15 |c_ULTIMATE.start_main_~k~0#1|) 4294967296)) (not (= (mod (mod .cse17 .cse2) 4294967296) 0)))) (< .cse17 (+ .cse15 1))) (or (< .cse11 (+ .cse17 1)) (let ((.cse19 (mod (+ |c_ULTIMATE.start_main_~j~0#1| 18) 4294967296))) (and (not (= (mod (mod .cse11 .cse2) 4294967296) 0)) (= .cse19 .cse11) (= .cse19 (mod (+ 18 |c_ULTIMATE.start_main_~k~0#1|) 4294967296))))) (or (< .cse9 (+ .cse4 1)) (let ((.cse20 (mod (+ |c_ULTIMATE.start_main_~j~0#1| 6) 4294967296))) (and (= .cse20 (mod (+ 6 |c_ULTIMATE.start_main_~k~0#1|) 4294967296)) (= .cse20 .cse9) (not (= (mod (mod .cse9 .cse2) 4294967296) 0))))))) is different from false