./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops-crafted-1/mono-crafted_10.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d296b6-c13b-4014-bf26-f91a0b7f07d2/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d296b6-c13b-4014-bf26-f91a0b7f07d2/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_16d296b6-c13b-4014-bf26-f91a0b7f07d2/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d296b6-c13b-4014-bf26-f91a0b7f07d2/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/loops-crafted-1/mono-crafted_10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d296b6-c13b-4014-bf26-f91a0b7f07d2/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_16d296b6-c13b-4014-bf26-f91a0b7f07d2/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 8c5f43b3e9ff1d4598a5a525fe9e716f863331c4c517b4b8adb0491943243286 --- 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 07:51:57,424 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 07:51:57,425 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 07:51:57,438 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 07:51:57,438 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 07:51:57,439 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 07:51:57,439 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 07:51:57,440 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 07:51:57,441 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 07:51:57,442 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 07:51:57,442 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 07:51:57,443 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 07:51:57,443 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 07:51:57,444 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 07:51:57,445 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 07:51:57,445 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 07:51:57,446 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 07:51:57,446 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 07:51:57,447 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 07:51:57,448 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 07:51:57,449 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 07:51:57,450 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 07:51:57,450 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 07:51:57,451 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 07:51:57,453 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 07:51:57,453 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 07:51:57,453 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 07:51:57,454 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 07:51:57,454 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 07:51:57,454 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 07:51:57,454 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 07:51:57,455 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 07:51:57,455 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 07:51:57,456 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 07:51:57,456 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 07:51:57,457 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 07:51:57,457 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 07:51:57,457 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 07:51:57,457 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 07:51:57,458 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 07:51:57,458 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 07:51:57,459 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d296b6-c13b-4014-bf26-f91a0b7f07d2/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 07:51:57,472 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 07:51:57,472 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 07:51:57,472 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 07:51:57,472 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 07:51:57,473 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 07:51:57,473 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 07:51:57,473 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 07:51:57,473 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 07:51:57,473 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 07:51:57,473 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 07:51:57,479 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 07:51:57,479 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 07:51:57,480 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 07:51:57,480 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 07:51:57,480 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 07:51:57,480 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 07:51:57,480 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 07:51:57,480 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 07:51:57,481 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 07:51:57,481 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 07:51:57,481 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 07:51:57,481 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 07:51:57,481 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 07:51:57,481 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 07:51:57,481 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 07:51:57,482 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 07:51:57,482 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 07:51:57,482 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 07:51:57,482 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 07:51:57,482 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 07:51:57,482 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 07:51:57,482 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 07:51:57,482 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 07:51:57,482 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 07:51:57,483 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 07:51:57,483 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 07:51:57,483 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 07:51:57,483 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 07:51:57,483 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 07:51:57,483 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 07:51:57,483 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 07:51:57,483 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_16d296b6-c13b-4014-bf26-f91a0b7f07d2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d296b6-c13b-4014-bf26-f91a0b7f07d2/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8c5f43b3e9ff1d4598a5a525fe9e716f863331c4c517b4b8adb0491943243286 [2022-12-14 07:51:57,650 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 07:51:57,667 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 07:51:57,669 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 07:51:57,670 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 07:51:57,670 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 07:51:57,671 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d296b6-c13b-4014-bf26-f91a0b7f07d2/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/loops-crafted-1/mono-crafted_10.c [2022-12-14 07:52:00,180 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 07:52:00,354 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 07:52:00,355 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d296b6-c13b-4014-bf26-f91a0b7f07d2/sv-benchmarks/c/loops-crafted-1/mono-crafted_10.c [2022-12-14 07:52:00,360 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d296b6-c13b-4014-bf26-f91a0b7f07d2/bin/utaipan-gh47qXpMRh/data/fc5a4a2a4/a243893db94e46378b07c0ef0448d0eb/FLAG74d59aa5e [2022-12-14 07:52:00,374 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d296b6-c13b-4014-bf26-f91a0b7f07d2/bin/utaipan-gh47qXpMRh/data/fc5a4a2a4/a243893db94e46378b07c0ef0448d0eb [2022-12-14 07:52:00,376 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 07:52:00,377 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 07:52:00,378 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 07:52:00,378 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 07:52:00,381 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 07:52:00,381 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:52:00" (1/1) ... [2022-12-14 07:52:00,382 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e76e134 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:52:00, skipping insertion in model container [2022-12-14 07:52:00,382 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:52:00" (1/1) ... [2022-12-14 07:52:00,390 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 07:52:00,402 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 07:52:00,514 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_16d296b6-c13b-4014-bf26-f91a0b7f07d2/sv-benchmarks/c/loops-crafted-1/mono-crafted_10.c[319,332] [2022-12-14 07:52:00,526 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:52:00,534 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 07:52:00,543 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_16d296b6-c13b-4014-bf26-f91a0b7f07d2/sv-benchmarks/c/loops-crafted-1/mono-crafted_10.c[319,332] [2022-12-14 07:52:00,545 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:52:00,555 INFO L208 MainTranslator]: Completed translation [2022-12-14 07:52:00,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:52:00 WrapperNode [2022-12-14 07:52:00,556 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 07:52:00,557 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 07:52:00,557 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 07:52:00,557 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 07:52:00,563 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:52:00" (1/1) ... [2022-12-14 07:52:00,568 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:52:00" (1/1) ... [2022-12-14 07:52:00,580 INFO L138 Inliner]: procedures = 12, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 32 [2022-12-14 07:52:00,580 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 07:52:00,581 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 07:52:00,581 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 07:52:00,581 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 07:52:00,587 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:52:00" (1/1) ... [2022-12-14 07:52:00,587 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:52:00" (1/1) ... [2022-12-14 07:52:00,588 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:52:00" (1/1) ... [2022-12-14 07:52:00,588 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:52:00" (1/1) ... [2022-12-14 07:52:00,590 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:52:00" (1/1) ... [2022-12-14 07:52:00,592 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:52:00" (1/1) ... [2022-12-14 07:52:00,592 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:52:00" (1/1) ... [2022-12-14 07:52:00,593 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:52:00" (1/1) ... [2022-12-14 07:52:00,594 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 07:52:00,594 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 07:52:00,594 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 07:52:00,594 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 07:52:00,595 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:52:00" (1/1) ... [2022-12-14 07:52:00,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 07:52:00,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d296b6-c13b-4014-bf26-f91a0b7f07d2/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:52:00,616 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d296b6-c13b-4014-bf26-f91a0b7f07d2/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 07:52:00,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d296b6-c13b-4014-bf26-f91a0b7f07d2/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 07:52:00,645 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 07:52:00,646 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 07:52:00,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 07:52:00,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 07:52:00,697 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 07:52:00,698 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 07:52:00,759 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 07:52:00,784 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 07:52:00,784 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 07:52:00,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:52:00 BoogieIcfgContainer [2022-12-14 07:52:00,786 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 07:52:00,788 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 07:52:00,788 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 07:52:00,790 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 07:52:00,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 07:52:00" (1/3) ... [2022-12-14 07:52:00,791 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74a9ceab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:52:00, skipping insertion in model container [2022-12-14 07:52:00,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:52:00" (2/3) ... [2022-12-14 07:52:00,791 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74a9ceab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:52:00, skipping insertion in model container [2022-12-14 07:52:00,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:52:00" (3/3) ... [2022-12-14 07:52:00,792 INFO L112 eAbstractionObserver]: Analyzing ICFG mono-crafted_10.c [2022-12-14 07:52:00,805 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 07:52:00,805 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 07:52:00,837 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 07:52:00,841 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;@78157eb9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 07:52:00,842 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 07:52:00,844 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 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 07:52:00,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 07:52:00,849 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:52:00,849 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 07:52:00,849 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:52:00,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:52:00,853 INFO L85 PathProgramCache]: Analyzing trace with hash 2065030, now seen corresponding path program 1 times [2022-12-14 07:52:00,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:52:00,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522233695] [2022-12-14 07:52:00,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:52:00,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:52:00,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:52:01,065 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 07:52:01,066 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:52:01,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522233695] [2022-12-14 07:52:01,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522233695] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:52:01,067 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:52:01,067 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 07:52:01,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858488072] [2022-12-14 07:52:01,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:52:01,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:52:01,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:52:01,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:52:01,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:52:01,109 INFO L87 Difference]: Start difference. First operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 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) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 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 07:52:01,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:52:01,135 INFO L93 Difference]: Finished difference Result 13 states and 15 transitions. [2022-12-14 07:52:01,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:52:01,150 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 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 4 [2022-12-14 07:52:01,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:52:01,156 INFO L225 Difference]: With dead ends: 13 [2022-12-14 07:52:01,156 INFO L226 Difference]: Without dead ends: 6 [2022-12-14 07:52:01,158 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:52:01,161 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 07:52:01,161 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 07:52:01,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2022-12-14 07:52:01,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2022-12-14 07:52:01,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 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 07:52:01,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2022-12-14 07:52:01,185 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 6 transitions. Word has length 4 [2022-12-14 07:52:01,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:52:01,186 INFO L495 AbstractCegarLoop]: Abstraction has 6 states and 6 transitions. [2022-12-14 07:52:01,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 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 07:52:01,186 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2022-12-14 07:52:01,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 07:52:01,186 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:52:01,186 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 07:52:01,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 07:52:01,187 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:52:01,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:52:01,188 INFO L85 PathProgramCache]: Analyzing trace with hash 64119683, now seen corresponding path program 1 times [2022-12-14 07:52:01,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:52:01,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136037442] [2022-12-14 07:52:01,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:52:01,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:52:01,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:52:01,322 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 07:52:01,323 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:52:01,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136037442] [2022-12-14 07:52:01,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136037442] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 07:52:01,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [576520689] [2022-12-14 07:52:01,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:52:01,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:52:01,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d296b6-c13b-4014-bf26-f91a0b7f07d2/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:52:01,325 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d296b6-c13b-4014-bf26-f91a0b7f07d2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:52:01,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d296b6-c13b-4014-bf26-f91a0b7f07d2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 07:52:01,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:52:01,367 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-14 07:52:01,372 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:52:01,441 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 07:52:01,441 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 07:52:01,479 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 07:52:01,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [576520689] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 07:52:01,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1385183737] [2022-12-14 07:52:01,496 INFO L159 IcfgInterpreter]: Started Sifa with 5 locations of interest [2022-12-14 07:52:01,496 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 07:52:01,500 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 07:52:01,504 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 07:52:01,505 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 07:52:01,733 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 07:52:01,809 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '69#(and (not (< (mod |ULTIMATE.start_main_~x~0#1| 4294967296) (mod |ULTIMATE.start_main_~y~0#1| 4294967296))) (= |ULTIMATE.start_main_~y~0#1| 10000000) (<= 0 |ULTIMATE.start_main_~x~0#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= 5000000 |ULTIMATE.start_main_~z~0#1|) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0) (= (ite (= (mod |ULTIMATE.start_main_~x~0#1| 4294967296) (mod |ULTIMATE.start_main_~z~0#1| 4294967296)) 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond#1|))' at error location [2022-12-14 07:52:01,810 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 07:52:01,810 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 07:52:01,810 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2022-12-14 07:52:01,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194985734] [2022-12-14 07:52:01,811 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 07:52:01,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 07:52:01,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:52:01,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 07:52:01,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-12-14 07:52:01,812 INFO L87 Difference]: Start difference. First operand 6 states and 6 transitions. Second operand has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 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 07:52:01,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:52:01,861 INFO L93 Difference]: Finished difference Result 12 states and 14 transitions. [2022-12-14 07:52:01,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 07:52:01,862 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 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 5 [2022-12-14 07:52:01,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:52:01,862 INFO L225 Difference]: With dead ends: 12 [2022-12-14 07:52:01,862 INFO L226 Difference]: Without dead ends: 9 [2022-12-14 07:52:01,863 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2022-12-14 07:52:01,864 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 2 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 07:52:01,864 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 8 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 07:52:01,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2022-12-14 07:52:01,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2022-12-14 07:52:01,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 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 07:52:01,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-12-14 07:52:01,867 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-12-14 07:52:01,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:52:01,867 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-12-14 07:52:01,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 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 07:52:01,868 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-12-14 07:52:01,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 07:52:01,868 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:52:01,868 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1] [2022-12-14 07:52:01,874 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d296b6-c13b-4014-bf26-f91a0b7f07d2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 07:52:02,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d296b6-c13b-4014-bf26-f91a0b7f07d2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-12-14 07:52:02,071 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:52:02,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:52:02,073 INFO L85 PathProgramCache]: Analyzing trace with hash -967943738, now seen corresponding path program 2 times [2022-12-14 07:52:02,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:52:02,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814190508] [2022-12-14 07:52:02,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:52:02,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:52:02,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:52:02,351 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 07:52:02,351 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:52:02,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814190508] [2022-12-14 07:52:02,352 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814190508] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 07:52:02,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1033413013] [2022-12-14 07:52:02,352 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 07:52:02,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:52:02,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d296b6-c13b-4014-bf26-f91a0b7f07d2/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:52:02,353 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d296b6-c13b-4014-bf26-f91a0b7f07d2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:52:02,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d296b6-c13b-4014-bf26-f91a0b7f07d2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 07:52:02,403 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-12-14 07:52:02,403 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 07:52:02,404 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 13 conjunts are in the unsatisfiable core [2022-12-14 07:52:02,405 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:52:02,482 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 07:52:02,482 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 07:52:02,567 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 07:52:02,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1033413013] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 07:52:02,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [926554490] [2022-12-14 07:52:02,570 INFO L159 IcfgInterpreter]: Started Sifa with 5 locations of interest [2022-12-14 07:52:02,570 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 07:52:02,570 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 07:52:02,570 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 07:52:02,570 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 07:52:02,629 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 07:52:02,841 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '163#(and (not (< (mod |ULTIMATE.start_main_~x~0#1| 4294967296) (mod |ULTIMATE.start_main_~y~0#1| 4294967296))) (= |ULTIMATE.start_main_~y~0#1| 10000000) (<= 0 |ULTIMATE.start_main_~x~0#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= 5000000 |ULTIMATE.start_main_~z~0#1|) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0) (= (ite (= (mod |ULTIMATE.start_main_~x~0#1| 4294967296) (mod |ULTIMATE.start_main_~z~0#1| 4294967296)) 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond#1|))' at error location [2022-12-14 07:52:02,841 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 07:52:02,842 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 07:52:02,842 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 15 [2022-12-14 07:52:02,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805390514] [2022-12-14 07:52:02,842 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 07:52:02,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-14 07:52:02,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:52:02,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-14 07:52:02,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=248, Unknown=0, NotChecked=0, Total=342 [2022-12-14 07:52:02,844 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 16 states, 16 states have (on average 1.1875) internal successors, (19), 15 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 07:52:03,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:52:03,306 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2022-12-14 07:52:03,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-14 07:52:03,307 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 1.1875) internal successors, (19), 15 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 8 [2022-12-14 07:52:03,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:52:03,307 INFO L225 Difference]: With dead ends: 18 [2022-12-14 07:52:03,307 INFO L226 Difference]: Without dead ends: 15 [2022-12-14 07:52:03,308 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=158, Invalid=348, Unknown=0, NotChecked=0, Total=506 [2022-12-14 07:52:03,309 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 07:52:03,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 16 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 07:52:03,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-12-14 07:52:03,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-12-14 07:52:03,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 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 07:52:03,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-12-14 07:52:03,314 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 8 [2022-12-14 07:52:03,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:52:03,315 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-12-14 07:52:03,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 1.1875) internal successors, (19), 15 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 07:52:03,315 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-12-14 07:52:03,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 07:52:03,316 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:52:03,316 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1] [2022-12-14 07:52:03,321 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d296b6-c13b-4014-bf26-f91a0b7f07d2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 07:52:03,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d296b6-c13b-4014-bf26-f91a0b7f07d2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:52:03,518 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:52:03,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:52:03,520 INFO L85 PathProgramCache]: Analyzing trace with hash -313388890, now seen corresponding path program 3 times [2022-12-14 07:52:03,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:52:03,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551632722] [2022-12-14 07:52:03,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:52:03,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:52:03,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:52:03,848 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 07:52:03,848 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:52:03,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551632722] [2022-12-14 07:52:03,849 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551632722] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 07:52:03,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2035263399] [2022-12-14 07:52:03,849 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-14 07:52:03,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:52:03,849 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d296b6-c13b-4014-bf26-f91a0b7f07d2/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:52:03,850 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d296b6-c13b-4014-bf26-f91a0b7f07d2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:52:03,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d296b6-c13b-4014-bf26-f91a0b7f07d2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 07:52:03,894 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-14 07:52:03,895 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 07:52:03,896 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 25 conjunts are in the unsatisfiable core [2022-12-14 07:52:03,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:52:04,126 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 07:52:04,126 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 07:52:04,413 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 07:52:04,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2035263399] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 07:52:04,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [683232959] [2022-12-14 07:52:04,415 INFO L159 IcfgInterpreter]: Started Sifa with 5 locations of interest [2022-12-14 07:52:04,415 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 07:52:04,415 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 07:52:04,416 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 07:52:04,416 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 07:52:04,460 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 07:52:04,717 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '341#(and (not (< (mod |ULTIMATE.start_main_~x~0#1| 4294967296) (mod |ULTIMATE.start_main_~y~0#1| 4294967296))) (= |ULTIMATE.start_main_~y~0#1| 10000000) (<= 0 |ULTIMATE.start_main_~x~0#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= 5000000 |ULTIMATE.start_main_~z~0#1|) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0) (= (ite (= (mod |ULTIMATE.start_main_~x~0#1| 4294967296) (mod |ULTIMATE.start_main_~z~0#1| 4294967296)) 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond#1|))' at error location [2022-12-14 07:52:04,717 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 07:52:04,717 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 07:52:04,717 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 33 [2022-12-14 07:52:04,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454708235] [2022-12-14 07:52:04,718 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 07:52:04,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-12-14 07:52:04,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:52:04,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-12-14 07:52:04,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=334, Invalid=998, Unknown=0, NotChecked=0, Total=1332 [2022-12-14 07:52:04,719 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 34 states, 34 states have (on average 1.088235294117647) internal successors, (37), 33 states have internal predecessors, (37), 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 07:52:18,237 WARN L233 SmtUtils]: Spent 5.70s on a formula simplification that was a NOOP. DAG size: 47 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:52:32,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:52:32,787 INFO L93 Difference]: Finished difference Result 30 states and 41 transitions. [2022-12-14 07:52:32,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-12-14 07:52:32,788 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 1.088235294117647) internal successors, (37), 33 states have internal predecessors, (37), 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 14 [2022-12-14 07:52:32,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:52:32,788 INFO L225 Difference]: With dead ends: 30 [2022-12-14 07:52:32,788 INFO L226 Difference]: Without dead ends: 27 [2022-12-14 07:52:32,789 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 607 ImplicationChecksByTransitivity, 27.5s TimeCoverageRelationStatistics Valid=674, Invalid=1488, Unknown=0, NotChecked=0, Total=2162 [2022-12-14 07:52:32,790 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-12-14 07:52:32,790 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-12-14 07:52:32,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-12-14 07:52:32,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-12-14 07:52:32,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.0384615384615385) internal successors, (27), 26 states have internal predecessors, (27), 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 07:52:32,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2022-12-14 07:52:32,799 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 14 [2022-12-14 07:52:32,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:52:32,800 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2022-12-14 07:52:32,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 1.088235294117647) internal successors, (37), 33 states have internal predecessors, (37), 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 07:52:32,800 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2022-12-14 07:52:32,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-12-14 07:52:32,800 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:52:32,800 INFO L195 NwaCegarLoop]: trace histogram [22, 1, 1, 1, 1] [2022-12-14 07:52:32,806 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d296b6-c13b-4014-bf26-f91a0b7f07d2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 07:52:33,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d296b6-c13b-4014-bf26-f91a0b7f07d2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:52:33,001 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:52:33,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:52:33,002 INFO L85 PathProgramCache]: Analyzing trace with hash 292652646, now seen corresponding path program 4 times [2022-12-14 07:52:33,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:52:33,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096297802] [2022-12-14 07:52:33,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:52:33,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:52:33,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:52:33,737 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:52:33,737 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:52:33,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096297802] [2022-12-14 07:52:33,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096297802] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 07:52:33,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [198272361] [2022-12-14 07:52:33,738 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-12-14 07:52:33,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:52:33,738 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d296b6-c13b-4014-bf26-f91a0b7f07d2/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:52:33,739 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d296b6-c13b-4014-bf26-f91a0b7f07d2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:52:33,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d296b6-c13b-4014-bf26-f91a0b7f07d2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 07:52:33,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:52:33,886 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 50 conjunts are in the unsatisfiable core [2022-12-14 07:52:33,888 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:52:34,559 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:52:34,559 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 07:52:36,790 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:52:36,791 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [198272361] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 07:52:36,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [326645459] [2022-12-14 07:52:36,793 INFO L159 IcfgInterpreter]: Started Sifa with 5 locations of interest [2022-12-14 07:52:36,793 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 07:52:36,793 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 07:52:36,793 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 07:52:36,793 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 07:52:36,866 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 07:52:37,445 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '687#(and (not (< (mod |ULTIMATE.start_main_~x~0#1| 4294967296) (mod |ULTIMATE.start_main_~y~0#1| 4294967296))) (= |ULTIMATE.start_main_~y~0#1| 10000000) (<= 0 |ULTIMATE.start_main_~x~0#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= 5000000 |ULTIMATE.start_main_~z~0#1|) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0) (= (ite (= (mod |ULTIMATE.start_main_~x~0#1| 4294967296) (mod |ULTIMATE.start_main_~z~0#1| 4294967296)) 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond#1|))' at error location [2022-12-14 07:52:37,445 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 07:52:37,445 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 07:52:37,445 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 69 [2022-12-14 07:52:37,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217576817] [2022-12-14 07:52:37,445 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 07:52:37,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 70 states [2022-12-14 07:52:37,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:52:37,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2022-12-14 07:52:37,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1290, Invalid=3966, Unknown=0, NotChecked=0, Total=5256 [2022-12-14 07:52:37,451 INFO L87 Difference]: Start difference. First operand 27 states and 27 transitions. Second operand has 70 states, 70 states have (on average 1.042857142857143) internal successors, (73), 69 states have internal predecessors, (73), 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 07:52:39,772 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse14 (mod |c_ULTIMATE.start_main_~y~0#1| 4294967296))) (let ((.cse4 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 3) 4294967296) .cse14)) (.cse5 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 2) 4294967296) .cse14)) (.cse9 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 15) 4294967296) .cse14)) (.cse2 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 12) 4294967296) .cse14)) (.cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 9) 4294967296) .cse14)) (.cse13 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 21) 4294967296) .cse14)) (.cse7 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 20) 4294967296) .cse14)) (.cse17 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 10) 4294967296) .cse14)) (.cse16 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 11) 4294967296) .cse14)) (.cse6 (< (mod (+ 19 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) .cse14)) (.cse1 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 8) 4294967296) .cse14)) (.cse15 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 14) 4294967296) .cse14)) (.cse3 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 13) 4294967296) .cse14)) (.cse8 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 16) 4294967296) .cse14)) (.cse18 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 18) 4294967296) .cse14)) (.cse20 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 17) 4294967296) .cse14)) (.cse11 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 4) 4294967296) .cse14)) (.cse21 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 5) 4294967296) .cse14)) (.cse10 (< (mod |c_ULTIMATE.start_main_~x~0#1| 4294967296) .cse14)) (.cse12 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 1) 4294967296) .cse14)) (.cse19 (< (mod (+ 7 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) .cse14)) (.cse22 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 6) 4294967296) .cse14))) (and (or .cse0 (not .cse1)) (or (not .cse2) .cse3) (or .cse4 (not .cse5)) (or (not .cse6) .cse7) (or .cse8 (not .cse9)) .cse10 (or (not .cse4) .cse11) (or .cse5 (not .cse12)) (or (not .cse13) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 22) 4294967296) .cse14)) (or .cse9 (not .cse15)) (or .cse2 (not .cse16)) (or (not .cse0) .cse17) (or .cse13 (not .cse7)) (or (not .cse17) .cse16) (or (not .cse18) .cse6) (or (not .cse19) .cse1) (or .cse15 (not .cse3)) (or (not .cse8) .cse20) (or .cse18 (not .cse20)) (or .cse21 (not .cse11)) (or (not .cse21) .cse22) (or (not .cse10) .cse12) (or .cse19 (not .cse22))))) is different from false [2022-12-14 07:56:35,640 WARN L233 SmtUtils]: Spent 3.32m on a formula simplification. DAG size of input: 133 DAG size of output: 91 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:56:38,039 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse7 (mod |c_ULTIMATE.start_main_~y~0#1| 4294967296))) (let ((.cse4 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 3) 4294967296) .cse7)) (.cse5 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 2) 4294967296) .cse7)) (.cse9 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 15) 4294967296) .cse7)) (.cse2 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 12) 4294967296) .cse7)) (.cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 9) 4294967296) .cse7)) (.cse15 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 10) 4294967296) .cse7)) (.cse14 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 11) 4294967296) .cse7)) (.cse6 (< (mod (+ 19 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) .cse7)) (.cse1 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 8) 4294967296) .cse7)) (.cse13 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 14) 4294967296) .cse7)) (.cse3 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 13) 4294967296) .cse7)) (.cse8 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 16) 4294967296) .cse7)) (.cse16 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 18) 4294967296) .cse7)) (.cse18 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 17) 4294967296) .cse7)) (.cse11 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 4) 4294967296) .cse7)) (.cse19 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 5) 4294967296) .cse7)) (.cse10 (< (mod |c_ULTIMATE.start_main_~x~0#1| 4294967296) .cse7)) (.cse12 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 1) 4294967296) .cse7)) (.cse17 (< (mod (+ 7 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) .cse7)) (.cse20 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 6) 4294967296) .cse7))) (and (or .cse0 (not .cse1)) (or (not .cse2) .cse3) (or .cse4 (not .cse5)) (or (not .cse6) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 20) 4294967296) .cse7)) (or .cse8 (not .cse9)) .cse10 (or (not .cse4) .cse11) (or .cse5 (not .cse12)) (or .cse9 (not .cse13)) (or .cse2 (not .cse14)) (or (not .cse0) .cse15) (or (not .cse15) .cse14) (or (not .cse16) .cse6) (or (not .cse17) .cse1) (or .cse13 (not .cse3)) (or (not .cse8) .cse18) (or .cse16 (not .cse18)) (or .cse19 (not .cse11)) (or (not .cse19) .cse20) (or (not .cse10) .cse12) (or .cse17 (not .cse20))))) is different from false [2022-12-14 07:59:54,213 WARN L233 SmtUtils]: Spent 2.56m on a formula simplification. DAG size of input: 121 DAG size of output: 83 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:59:56,982 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse16 (mod |c_ULTIMATE.start_main_~y~0#1| 4294967296))) (let ((.cse4 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 3) 4294967296) .cse16)) (.cse5 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 2) 4294967296) .cse16)) (.cse7 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 15) 4294967296) .cse16)) (.cse2 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 12) 4294967296) .cse16)) (.cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 9) 4294967296) .cse16)) (.cse13 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 10) 4294967296) .cse16)) (.cse12 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 11) 4294967296) .cse16)) (.cse1 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 8) 4294967296) .cse16)) (.cse11 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 14) 4294967296) .cse16)) (.cse3 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 13) 4294967296) .cse16)) (.cse6 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 16) 4294967296) .cse16)) (.cse15 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 17) 4294967296) .cse16)) (.cse9 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 4) 4294967296) .cse16)) (.cse17 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 5) 4294967296) .cse16)) (.cse8 (< (mod |c_ULTIMATE.start_main_~x~0#1| 4294967296) .cse16)) (.cse10 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 1) 4294967296) .cse16)) (.cse14 (< (mod (+ 7 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) .cse16)) (.cse18 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 6) 4294967296) .cse16))) (and (or .cse0 (not .cse1)) (or (not .cse2) .cse3) (or .cse4 (not .cse5)) (or .cse6 (not .cse7)) .cse8 (or (not .cse4) .cse9) (or .cse5 (not .cse10)) (or .cse7 (not .cse11)) (or .cse2 (not .cse12)) (or (not .cse0) .cse13) (or (not .cse13) .cse12) (or (not .cse14) .cse1) (or .cse11 (not .cse3)) (or (not .cse6) .cse15) (or (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 18) 4294967296) .cse16) (not .cse15)) (or .cse17 (not .cse9)) (or (not .cse17) .cse18) (or (not .cse8) .cse10) (or .cse14 (not .cse18))))) is different from false [2022-12-14 08:02:31,724 WARN L233 SmtUtils]: Spent 1.99m on a formula simplification. DAG size of input: 109 DAG size of output: 75 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:04:29,335 WARN L233 SmtUtils]: Spent 1.58m on a formula simplification. DAG size of input: 103 DAG size of output: 71 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:04:31,571 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse9 (mod |c_ULTIMATE.start_main_~y~0#1| 4294967296))) (let ((.cse4 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 3) 4294967296) .cse9)) (.cse5 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 2) 4294967296) .cse9)) (.cse2 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 12) 4294967296) .cse9)) (.cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 9) 4294967296) .cse9)) (.cse12 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 10) 4294967296) .cse9)) (.cse11 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 11) 4294967296) .cse9)) (.cse1 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 8) 4294967296) .cse9)) (.cse10 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 14) 4294967296) .cse9)) (.cse3 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 13) 4294967296) .cse9)) (.cse7 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 4) 4294967296) .cse9)) (.cse14 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 5) 4294967296) .cse9)) (.cse6 (< (mod |c_ULTIMATE.start_main_~x~0#1| 4294967296) .cse9)) (.cse8 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 1) 4294967296) .cse9)) (.cse13 (< (mod (+ 7 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) .cse9)) (.cse15 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 6) 4294967296) .cse9))) (and (or .cse0 (not .cse1)) (or (not .cse2) .cse3) (or .cse4 (not .cse5)) .cse6 (or (not .cse4) .cse7) (or .cse5 (not .cse8)) (or (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 15) 4294967296) .cse9) (not .cse10)) (or .cse2 (not .cse11)) (or (not .cse0) .cse12) (or (not .cse12) .cse11) (or (not .cse13) .cse1) (or .cse10 (not .cse3)) (or .cse14 (not .cse7)) (or (not .cse14) .cse15) (or (not .cse6) .cse8) (or .cse13 (not .cse15))))) is different from false [2022-12-14 08:06:02,176 WARN L233 SmtUtils]: Spent 1.10m on a formula simplification. DAG size of input: 91 DAG size of output: 63 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:07:12,389 WARN L233 SmtUtils]: Spent 47.68s on a formula simplification. DAG size of input: 85 DAG size of output: 59 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)