./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-acceleration/phases_1-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a 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_9d2e8e0d-08e0-40f8-92a3-e17a651a286a/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d2e8e0d-08e0-40f8-92a3-e17a651a286a/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d2e8e0d-08e0-40f8-92a3-e17a651a286a/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d2e8e0d-08e0-40f8-92a3-e17a651a286a/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-acceleration/phases_1-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d2e8e0d-08e0-40f8-92a3-e17a651a286a/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d2e8e0d-08e0-40f8-92a3-e17a651a286a/bin/utaipan-7li7fVZpFI --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 bc900b1bfcaecf91bc89637deaef4e1ddf2476faf43fa7e6f1e197c315ae3982 --- 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-5e519f3 [2022-11-03 03:45:24,981 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 03:45:24,984 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 03:45:25,024 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 03:45:25,025 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 03:45:25,029 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 03:45:25,032 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 03:45:25,035 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 03:45:25,040 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 03:45:25,040 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 03:45:25,041 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 03:45:25,042 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 03:45:25,043 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 03:45:25,044 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 03:45:25,044 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 03:45:25,045 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 03:45:25,046 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 03:45:25,047 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 03:45:25,049 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 03:45:25,056 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 03:45:25,060 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 03:45:25,066 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 03:45:25,070 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 03:45:25,071 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 03:45:25,079 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 03:45:25,079 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 03:45:25,079 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 03:45:25,080 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 03:45:25,081 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 03:45:25,082 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 03:45:25,082 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 03:45:25,083 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 03:45:25,083 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 03:45:25,084 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 03:45:25,085 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 03:45:25,085 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 03:45:25,086 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 03:45:25,086 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 03:45:25,086 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 03:45:25,087 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 03:45:25,088 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 03:45:25,091 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d2e8e0d-08e0-40f8-92a3-e17a651a286a/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-03 03:45:25,131 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 03:45:25,132 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 03:45:25,132 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 03:45:25,132 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 03:45:25,133 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 03:45:25,133 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 03:45:25,133 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 03:45:25,133 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 03:45:25,134 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 03:45:25,135 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 03:45:25,136 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 03:45:25,136 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 03:45:25,136 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 03:45:25,137 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 03:45:25,137 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 03:45:25,137 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 03:45:25,137 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 03:45:25,137 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 03:45:25,138 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 03:45:25,138 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 03:45:25,138 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 03:45:25,139 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 03:45:25,139 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 03:45:25,141 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 03:45:25,141 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 03:45:25,141 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 03:45:25,141 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 03:45:25,141 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 03:45:25,142 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 03:45:25,142 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 03:45:25,142 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 03:45:25,142 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 03:45:25,143 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:45:25,150 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 03:45:25,151 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 03:45:25,152 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 03:45:25,152 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 03:45:25,152 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 03:45:25,152 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 03:45:25,153 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 03:45:25,153 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 03:45:25,153 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_9d2e8e0d-08e0-40f8-92a3-e17a651a286a/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d2e8e0d-08e0-40f8-92a3-e17a651a286a/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bc900b1bfcaecf91bc89637deaef4e1ddf2476faf43fa7e6f1e197c315ae3982 [2022-11-03 03:45:25,454 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 03:45:25,475 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 03:45:25,478 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 03:45:25,479 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 03:45:25,480 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 03:45:25,481 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d2e8e0d-08e0-40f8-92a3-e17a651a286a/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/loop-acceleration/phases_1-1.c [2022-11-03 03:45:25,568 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d2e8e0d-08e0-40f8-92a3-e17a651a286a/bin/utaipan-7li7fVZpFI/data/0faff20b7/df06d2bed36740fcbacc9342983cb4d2/FLAGf37391031 [2022-11-03 03:45:26,105 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 03:45:26,106 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d2e8e0d-08e0-40f8-92a3-e17a651a286a/sv-benchmarks/c/loop-acceleration/phases_1-1.c [2022-11-03 03:45:26,112 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d2e8e0d-08e0-40f8-92a3-e17a651a286a/bin/utaipan-7li7fVZpFI/data/0faff20b7/df06d2bed36740fcbacc9342983cb4d2/FLAGf37391031 [2022-11-03 03:45:26,478 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d2e8e0d-08e0-40f8-92a3-e17a651a286a/bin/utaipan-7li7fVZpFI/data/0faff20b7/df06d2bed36740fcbacc9342983cb4d2 [2022-11-03 03:45:26,485 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 03:45:26,488 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 03:45:26,491 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 03:45:26,491 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 03:45:26,495 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 03:45:26,496 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:45:26" (1/1) ... [2022-11-03 03:45:26,498 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78a5a42a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:26, skipping insertion in model container [2022-11-03 03:45:26,499 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:45:26" (1/1) ... [2022-11-03 03:45:26,511 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 03:45:26,529 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 03:45:26,726 WARN L230 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_9d2e8e0d-08e0-40f8-92a3-e17a651a286a/sv-benchmarks/c/loop-acceleration/phases_1-1.c[322,335] [2022-11-03 03:45:26,738 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:45:26,746 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 03:45:26,757 WARN L230 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_9d2e8e0d-08e0-40f8-92a3-e17a651a286a/sv-benchmarks/c/loop-acceleration/phases_1-1.c[322,335] [2022-11-03 03:45:26,760 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:45:26,773 INFO L208 MainTranslator]: Completed translation [2022-11-03 03:45:26,773 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:26 WrapperNode [2022-11-03 03:45:26,773 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 03:45:26,774 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 03:45:26,774 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 03:45:26,774 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 03:45:26,782 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:26" (1/1) ... [2022-11-03 03:45:26,788 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:26" (1/1) ... [2022-11-03 03:45:26,805 INFO L138 Inliner]: procedures = 12, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 27 [2022-11-03 03:45:26,806 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 03:45:26,807 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 03:45:26,807 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 03:45:26,808 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 03:45:26,817 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:26" (1/1) ... [2022-11-03 03:45:26,817 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:26" (1/1) ... [2022-11-03 03:45:26,819 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:26" (1/1) ... [2022-11-03 03:45:26,819 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:26" (1/1) ... [2022-11-03 03:45:26,829 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:26" (1/1) ... [2022-11-03 03:45:26,832 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:26" (1/1) ... [2022-11-03 03:45:26,836 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:26" (1/1) ... [2022-11-03 03:45:26,837 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:26" (1/1) ... [2022-11-03 03:45:26,841 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 03:45:26,842 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 03:45:26,842 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 03:45:26,842 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 03:45:26,844 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:26" (1/1) ... [2022-11-03 03:45:26,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:45:26,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d2e8e0d-08e0-40f8-92a3-e17a651a286a/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:45:26,874 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d2e8e0d-08e0-40f8-92a3-e17a651a286a/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 03:45:26,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d2e8e0d-08e0-40f8-92a3-e17a651a286a/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 03:45:26,911 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 03:45:26,911 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 03:45:26,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 03:45:26,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 03:45:26,968 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 03:45:26,970 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 03:45:27,066 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 03:45:27,094 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 03:45:27,095 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-03 03:45:27,097 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:45:27 BoogieIcfgContainer [2022-11-03 03:45:27,098 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 03:45:27,100 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 03:45:27,100 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 03:45:27,104 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 03:45:27,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:45:26" (1/3) ... [2022-11-03 03:45:27,105 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ea48ab9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:45:27, skipping insertion in model container [2022-11-03 03:45:27,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:26" (2/3) ... [2022-11-03 03:45:27,106 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ea48ab9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:45:27, skipping insertion in model container [2022-11-03 03:45:27,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:45:27" (3/3) ... [2022-11-03 03:45:27,107 INFO L112 eAbstractionObserver]: Analyzing ICFG phases_1-1.c [2022-11-03 03:45:27,124 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 03:45:27,125 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 03:45:27,173 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 03:45:27,181 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;@3e589582, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 03:45:27,181 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 03:45:27,186 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) [2022-11-03 03:45:27,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-03 03:45:27,193 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:45:27,193 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-03 03:45:27,194 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:45:27,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:45:27,201 INFO L85 PathProgramCache]: Analyzing trace with hash 2037129, now seen corresponding path program 1 times [2022-11-03 03:45:27,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:45:27,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934996392] [2022-11-03 03:45:27,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:45:27,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:45:27,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:45:27,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:45:27,479 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:45:27,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934996392] [2022-11-03 03:45:27,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934996392] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:45:27,480 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:45:27,480 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 03:45:27,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644897284] [2022-11-03 03:45:27,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:45:27,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:45:27,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:45:27,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:45:27,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:45:27,517 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) [2022-11-03 03:45:27,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:45:27,594 INFO L93 Difference]: Finished difference Result 13 states and 15 transitions. [2022-11-03 03:45:27,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:45:27,597 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 [2022-11-03 03:45:27,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:45:27,605 INFO L225 Difference]: With dead ends: 13 [2022-11-03 03:45:27,605 INFO L226 Difference]: Without dead ends: 6 [2022-11-03 03:45:27,608 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 [2022-11-03 03:45:27,616 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:45:27,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 03:45:27,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2022-11-03 03:45:27,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2022-11-03 03:45:27,656 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) [2022-11-03 03:45:27,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2022-11-03 03:45:27,657 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 6 transitions. Word has length 4 [2022-11-03 03:45:27,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:45:27,658 INFO L495 AbstractCegarLoop]: Abstraction has 6 states and 6 transitions. [2022-11-03 03:45:27,659 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) [2022-11-03 03:45:27,659 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2022-11-03 03:45:27,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-03 03:45:27,659 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:45:27,660 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-03 03:45:27,660 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 03:45:27,660 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:45:27,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:45:27,661 INFO L85 PathProgramCache]: Analyzing trace with hash 63108679, now seen corresponding path program 1 times [2022-11-03 03:45:27,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:45:27,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240845892] [2022-11-03 03:45:27,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:45:27,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:45:27,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:45:27,957 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:45:27,958 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:45:27,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240845892] [2022-11-03 03:45:27,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240845892] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 03:45:27,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2147090822] [2022-11-03 03:45:27,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:45:27,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:45:27,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d2e8e0d-08e0-40f8-92a3-e17a651a286a/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:45:27,962 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d2e8e0d-08e0-40f8-92a3-e17a651a286a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:45:28,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d2e8e0d-08e0-40f8-92a3-e17a651a286a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 03:45:28,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:45:28,092 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-03 03:45:28,096 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:45:28,194 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:45:28,194 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:45:28,508 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:45:28,512 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2147090822] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:45:28,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2055569069] [2022-11-03 03:45:28,538 INFO L159 IcfgInterpreter]: Started Sifa with 5 locations of interest [2022-11-03 03:45:28,539 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 03:45:28,543 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 03:45:28,553 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 03:45:28,554 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 03:45:29,086 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 03:45:29,174 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '70#(and (<= 0 |ULTIMATE.start_main_~x~0#1|) (= (ite (= (mod |ULTIMATE.start_main_~x~0#1| 2) 0) 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (not (< (mod |ULTIMATE.start_main_~x~0#1| 4294967296) 268435455)) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-03 03:45:29,175 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 03:45:29,175 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 03:45:29,175 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 4] total 7 [2022-11-03 03:45:29,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158650065] [2022-11-03 03:45:29,176 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 03:45:29,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-03 03:45:29,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:45:29,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-03 03:45:29,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-11-03 03:45:29,179 INFO L87 Difference]: Start difference. First operand 6 states and 6 transitions. Second operand has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 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) [2022-11-03 03:45:29,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:45:29,317 INFO L93 Difference]: Finished difference Result 14 states and 17 transitions. [2022-11-03 03:45:29,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-03 03:45:29,319 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 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) Word has length 5 [2022-11-03 03:45:29,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:45:29,320 INFO L225 Difference]: With dead ends: 14 [2022-11-03 03:45:29,320 INFO L226 Difference]: Without dead ends: 10 [2022-11-03 03:45:29,320 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-11-03 03:45:29,321 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 3 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:45:29,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 7 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 03:45:29,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2022-11-03 03:45:29,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2022-11-03 03:45:29,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 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) [2022-11-03 03:45:29,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2022-11-03 03:45:29,327 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 5 [2022-11-03 03:45:29,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:45:29,328 INFO L495 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2022-11-03 03:45:29,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 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) [2022-11-03 03:45:29,328 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2022-11-03 03:45:29,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-03 03:45:29,329 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:45:29,329 INFO L195 NwaCegarLoop]: trace histogram [5, 1, 1, 1, 1] [2022-11-03 03:45:29,362 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d2e8e0d-08e0-40f8-92a3-e17a651a286a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-03 03:45:29,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d2e8e0d-08e0-40f8-92a3-e17a651a286a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:45:29,530 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:45:29,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:45:29,531 INFO L85 PathProgramCache]: Analyzing trace with hash -1818646841, now seen corresponding path program 2 times [2022-11-03 03:45:29,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:45:29,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825882786] [2022-11-03 03:45:29,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:45:29,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:45:29,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:45:30,075 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:45:30,076 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:45:30,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825882786] [2022-11-03 03:45:30,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825882786] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 03:45:30,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1299545779] [2022-11-03 03:45:30,082 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-03 03:45:30,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:45:30,082 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d2e8e0d-08e0-40f8-92a3-e17a651a286a/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:45:30,083 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d2e8e0d-08e0-40f8-92a3-e17a651a286a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:45:30,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d2e8e0d-08e0-40f8-92a3-e17a651a286a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 03:45:30,181 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-11-03 03:45:30,182 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 03:45:30,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-03 03:45:30,185 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:45:30,390 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:45:30,390 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:45:33,197 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:45:33,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1299545779] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:45:33,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [757864323] [2022-11-03 03:45:33,199 INFO L159 IcfgInterpreter]: Started Sifa with 5 locations of interest [2022-11-03 03:45:33,199 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 03:45:33,200 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 03:45:33,200 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 03:45:33,200 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 03:45:33,358 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 03:45:33,995 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '177#(and (<= 0 |ULTIMATE.start_main_~x~0#1|) (= (ite (= (mod |ULTIMATE.start_main_~x~0#1| 2) 0) 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (not (< (mod |ULTIMATE.start_main_~x~0#1| 4294967296) 268435455)) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-03 03:45:33,995 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 03:45:33,995 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 03:45:33,995 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 8] total 15 [2022-11-03 03:45:33,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032130177] [2022-11-03 03:45:33,996 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 03:45:33,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-03 03:45:33,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:45:33,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-03 03:45:33,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=246, Unknown=0, NotChecked=0, Total=342 [2022-11-03 03:45:33,998 INFO L87 Difference]: Start difference. First operand 10 states and 10 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) [2022-11-03 03:45:43,156 WARN L234 SmtUtils]: Spent 8.43s on a formula simplification. DAG size of input: 103 DAG size of output: 24 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:46:01,572 WARN L234 SmtUtils]: Spent 9.71s on a formula simplification. DAG size of input: 106 DAG size of output: 27 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:46:03,666 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (< (mod |c_ULTIMATE.start_main_~x~0#1| 4294967296) 268435455))) (and (or .cse0 (= (mod |c_ULTIMATE.start_main_~x~0#1| 2) 0)) (let ((.cse1 (+ |c_ULTIMATE.start_main_~x~0#1| (- 268435449)))) (or (< (+ (* 2 (div .cse1 2)) 268435449) |c_ULTIMATE.start_main_~x~0#1|) (< (+ (* (div .cse1 4294967296) 4294967296) 4294967289) |c_ULTIMATE.start_main_~x~0#1|) (< (+ (* (div (+ |c_ULTIMATE.start_main_~x~0#1| 4) 4294967296) 4294967296) 268435450) |c_ULTIMATE.start_main_~x~0#1|))) (or (< (+ (* 4294967296 (div (+ |c_ULTIMATE.start_main_~x~0#1| 2) 4294967296)) 268435452) |c_ULTIMATE.start_main_~x~0#1|) (< (+ 4294967291 (* 4294967296 (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 268435451)) 4294967296))) |c_ULTIMATE.start_main_~x~0#1|) (let ((.cse2 (+ |c_ULTIMATE.start_main_~x~0#1| 1))) (< (* 2 (div .cse2 2)) .cse2))) (or (< |c_ULTIMATE.start_main_~x~0#1| (+ 1 (* (div |c_ULTIMATE.start_main_~x~0#1| 2) 2))) (< (+ (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 268435453)) 4294967296) 4294967296) 4294967293) |c_ULTIMATE.start_main_~x~0#1|) (not .cse0)))) is different from false [2022-11-03 03:46:37,589 WARN L234 SmtUtils]: Spent 21.98s on a formula simplification that was a NOOP. DAG size: 99 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:46:39,595 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-03 03:46:39,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:46:39,743 INFO L93 Difference]: Finished difference Result 22 states and 28 transitions. [2022-11-03 03:46:39,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-03 03:46:39,745 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 9 [2022-11-03 03:46:39,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:46:39,746 INFO L225 Difference]: With dead ends: 22 [2022-11-03 03:46:39,746 INFO L226 Difference]: Without dead ends: 17 [2022-11-03 03:46:39,746 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 64.9s TimeCoverageRelationStatistics Valid=184, Invalid=414, Unknown=6, NotChecked=46, Total=650 [2022-11-03 03:46:39,747 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 27 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 25 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 2 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-11-03 03:46:39,748 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 6 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 57 Invalid, 1 Unknown, 2 Unchecked, 2.6s Time] [2022-11-03 03:46:39,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-03 03:46:39,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-11-03 03:46:39,754 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) [2022-11-03 03:46:39,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2022-11-03 03:46:39,755 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 9 [2022-11-03 03:46:39,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:46:39,755 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2022-11-03 03:46:39,755 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) [2022-11-03 03:46:39,755 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2022-11-03 03:46:39,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-03 03:46:39,756 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:46:39,756 INFO L195 NwaCegarLoop]: trace histogram [12, 1, 1, 1, 1] [2022-11-03 03:46:39,767 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d2e8e0d-08e0-40f8-92a3-e17a651a286a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-03 03:46:39,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d2e8e0d-08e0-40f8-92a3-e17a651a286a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:46:39,961 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:46:39,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:46:39,962 INFO L85 PathProgramCache]: Analyzing trace with hash 904893449, now seen corresponding path program 3 times [2022-11-03 03:46:39,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:46:39,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127737792] [2022-11-03 03:46:39,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:46:39,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:46:39,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:46:40,888 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:46:40,888 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:46:40,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127737792] [2022-11-03 03:46:40,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127737792] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 03:46:40,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1766867419] [2022-11-03 03:46:40,889 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-03 03:46:40,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:46:40,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d2e8e0d-08e0-40f8-92a3-e17a651a286a/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:46:40,894 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d2e8e0d-08e0-40f8-92a3-e17a651a286a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:46:40,914 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d2e8e0d-08e0-40f8-92a3-e17a651a286a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-03 03:46:40,995 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-03 03:46:40,996 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 03:46:40,998 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 29 conjunts are in the unsatisfiable core [2022-11-03 03:46:41,001 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:46:41,430 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:46:41,433 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:46:52,330 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 77 refuted. 1 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:46:52,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1766867419] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:46:52,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [347043460] [2022-11-03 03:46:52,334 INFO L159 IcfgInterpreter]: Started Sifa with 5 locations of interest [2022-11-03 03:46:52,334 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 03:46:52,335 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 03:46:52,335 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 03:46:52,335 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 03:46:52,550 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 03:46:55,352 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '379#(and (<= 0 |ULTIMATE.start_main_~x~0#1|) (= (ite (= (mod |ULTIMATE.start_main_~x~0#1| 2) 0) 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (not (< (mod |ULTIMATE.start_main_~x~0#1| 4294967296) 268435455)) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-03 03:46:55,352 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 03:46:55,352 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 03:46:55,352 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 15] total 29 [2022-11-03 03:46:55,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824814792] [2022-11-03 03:46:55,353 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 03:46:55,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-11-03 03:46:55,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:46:55,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-11-03 03:46:55,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=284, Invalid=769, Unknown=3, NotChecked=0, Total=1056 [2022-11-03 03:46:55,355 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand has 30 states, 30 states have (on average 1.1) internal successors, (33), 29 states have internal predecessors, (33), 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) [2022-11-03 03:46:57,518 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (< (mod |c_ULTIMATE.start_main_~x~0#1| 4294967296) 268435455))) (and (or .cse0 (= (mod |c_ULTIMATE.start_main_~x~0#1| 2) 0)) (or (< (+ (* (div (+ (- 268435445) |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 4294967296) 4294967285) |c_ULTIMATE.start_main_~x~0#1|) (let ((.cse1 (+ 7 |c_ULTIMATE.start_main_~x~0#1|))) (< (* 2 (div .cse1 2)) .cse1)) (< (+ 268435446 (* (div (+ |c_ULTIMATE.start_main_~x~0#1| 8) 4294967296) 4294967296)) |c_ULTIMATE.start_main_~x~0#1|)) (or (let ((.cse2 (+ |c_ULTIMATE.start_main_~x~0#1| 9))) (< (* (div .cse2 2) 2) .cse2)) (< (+ 4294967283 (* 4294967296 (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 268435443)) 4294967296))) |c_ULTIMATE.start_main_~x~0#1|) (< (+ (* (div (+ |c_ULTIMATE.start_main_~x~0#1| 10) 4294967296) 4294967296) 268435444) |c_ULTIMATE.start_main_~x~0#1|)) (let ((.cse3 (+ |c_ULTIMATE.start_main_~x~0#1| (- 268435439)))) (or (< (+ (* (div (+ |c_ULTIMATE.start_main_~x~0#1| 14) 4294967296) 4294967296) 268435440) |c_ULTIMATE.start_main_~x~0#1|) (< (+ (* (div .cse3 2) 2) 268435439) |c_ULTIMATE.start_main_~x~0#1|) (< (+ (* (div .cse3 4294967296) 4294967296) 4294967279) |c_ULTIMATE.start_main_~x~0#1|))) (let ((.cse4 (+ |c_ULTIMATE.start_main_~x~0#1| (- 268435441)))) (or (< (+ 268435441 (* (div .cse4 2) 2)) |c_ULTIMATE.start_main_~x~0#1|) (< (+ (* 4294967296 (div .cse4 4294967296)) 4294967281) |c_ULTIMATE.start_main_~x~0#1|) (< (+ 268435442 (* (div (+ |c_ULTIMATE.start_main_~x~0#1| 12) 4294967296) 4294967296)) |c_ULTIMATE.start_main_~x~0#1|))) (let ((.cse5 (+ (- 268435431) |c_ULTIMATE.start_main_~x~0#1|))) (or (< (+ 268435431 (* (div .cse5 2) 2)) |c_ULTIMATE.start_main_~x~0#1|) (< (+ 4294967271 (* (div .cse5 4294967296) 4294967296)) |c_ULTIMATE.start_main_~x~0#1|) (< (+ 268435432 (* 4294967296 (div (+ |c_ULTIMATE.start_main_~x~0#1| 22) 4294967296))) |c_ULTIMATE.start_main_~x~0#1|))) (let ((.cse6 (+ |c_ULTIMATE.start_main_~x~0#1| (- 268435435)))) (or (< (+ (* (div .cse6 4294967296) 4294967296) 4294967275) |c_ULTIMATE.start_main_~x~0#1|) (< (+ (* 4294967296 (div (+ |c_ULTIMATE.start_main_~x~0#1| 18) 4294967296)) 268435436) |c_ULTIMATE.start_main_~x~0#1|) (< (+ 268435435 (* 2 (div .cse6 2))) |c_ULTIMATE.start_main_~x~0#1|))) (or (< (+ (* 4294967296 (div (+ |c_ULTIMATE.start_main_~x~0#1| 2) 4294967296)) 268435452) |c_ULTIMATE.start_main_~x~0#1|) (< (+ 4294967291 (* 4294967296 (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 268435451)) 4294967296))) |c_ULTIMATE.start_main_~x~0#1|) (let ((.cse7 (+ |c_ULTIMATE.start_main_~x~0#1| 1))) (< (* 2 (div .cse7 2)) .cse7))) (let ((.cse8 (+ |c_ULTIMATE.start_main_~x~0#1| (- 268435433)))) (or (< (+ (* 4294967296 (div (+ |c_ULTIMATE.start_main_~x~0#1| 20) 4294967296)) 268435434) |c_ULTIMATE.start_main_~x~0#1|) (< (+ 268435433 (* 2 (div .cse8 2))) |c_ULTIMATE.start_main_~x~0#1|) (< (+ 4294967273 (* (div .cse8 4294967296) 4294967296)) |c_ULTIMATE.start_main_~x~0#1|))) (or (let ((.cse9 (+ |c_ULTIMATE.start_main_~x~0#1| 3))) (< (* (div .cse9 2) 2) .cse9)) (< (+ (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 268435449)) 4294967296) 4294967296) 4294967289) |c_ULTIMATE.start_main_~x~0#1|) (< (+ (* (div (+ |c_ULTIMATE.start_main_~x~0#1| 4) 4294967296) 4294967296) 268435450) |c_ULTIMATE.start_main_~x~0#1|)) (or (let ((.cse10 (+ |c_ULTIMATE.start_main_~x~0#1| 5))) (< (* (div .cse10 2) 2) .cse10)) (< (+ (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 268435447)) 4294967296) 4294967296) 4294967287) |c_ULTIMATE.start_main_~x~0#1|) (< (+ 268435448 (* (div (+ |c_ULTIMATE.start_main_~x~0#1| 6) 4294967296) 4294967296)) |c_ULTIMATE.start_main_~x~0#1|)) (or (< |c_ULTIMATE.start_main_~x~0#1| (+ 1 (* (div |c_ULTIMATE.start_main_~x~0#1| 2) 2))) (< (+ (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 268435453)) 4294967296) 4294967296) 4294967293) |c_ULTIMATE.start_main_~x~0#1|) (not .cse0)) (let ((.cse11 (+ |c_ULTIMATE.start_main_~x~0#1| (- 268435437)))) (or (< (+ 268435438 (* (div (+ |c_ULTIMATE.start_main_~x~0#1| 16) 4294967296) 4294967296)) |c_ULTIMATE.start_main_~x~0#1|) (< (+ (* (div .cse11 4294967296) 4294967296) 4294967277) |c_ULTIMATE.start_main_~x~0#1|) (< (+ (* (div .cse11 2) 2) 268435437) |c_ULTIMATE.start_main_~x~0#1|))))) is different from false [2022-11-03 03:51:05,104 WARN L234 SmtUtils]: Spent 3.58m on a formula simplification. DAG size of input: 223 DAG size of output: 24 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:51:07,200 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (< (mod |c_ULTIMATE.start_main_~x~0#1| 4294967296) 268435455))) (and (or .cse0 (= (mod |c_ULTIMATE.start_main_~x~0#1| 2) 0)) (or (< (+ (* (div (+ (- 268435445) |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 4294967296) 4294967285) |c_ULTIMATE.start_main_~x~0#1|) (let ((.cse1 (+ 7 |c_ULTIMATE.start_main_~x~0#1|))) (< (* 2 (div .cse1 2)) .cse1)) (< (+ 268435446 (* (div (+ |c_ULTIMATE.start_main_~x~0#1| 8) 4294967296) 4294967296)) |c_ULTIMATE.start_main_~x~0#1|)) (or (let ((.cse2 (+ |c_ULTIMATE.start_main_~x~0#1| 9))) (< (* (div .cse2 2) 2) .cse2)) (< (+ 4294967283 (* 4294967296 (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 268435443)) 4294967296))) |c_ULTIMATE.start_main_~x~0#1|) (< (+ (* (div (+ |c_ULTIMATE.start_main_~x~0#1| 10) 4294967296) 4294967296) 268435444) |c_ULTIMATE.start_main_~x~0#1|)) (let ((.cse3 (+ |c_ULTIMATE.start_main_~x~0#1| (- 268435439)))) (or (< (+ (* (div (+ |c_ULTIMATE.start_main_~x~0#1| 14) 4294967296) 4294967296) 268435440) |c_ULTIMATE.start_main_~x~0#1|) (< (+ (* (div .cse3 2) 2) 268435439) |c_ULTIMATE.start_main_~x~0#1|) (< (+ (* (div .cse3 4294967296) 4294967296) 4294967279) |c_ULTIMATE.start_main_~x~0#1|))) (let ((.cse4 (+ |c_ULTIMATE.start_main_~x~0#1| (- 268435441)))) (or (< (+ 268435441 (* (div .cse4 2) 2)) |c_ULTIMATE.start_main_~x~0#1|) (< (+ (* 4294967296 (div .cse4 4294967296)) 4294967281) |c_ULTIMATE.start_main_~x~0#1|) (< (+ 268435442 (* (div (+ |c_ULTIMATE.start_main_~x~0#1| 12) 4294967296) 4294967296)) |c_ULTIMATE.start_main_~x~0#1|))) (let ((.cse5 (+ |c_ULTIMATE.start_main_~x~0#1| (- 268435435)))) (or (< (+ (* (div .cse5 4294967296) 4294967296) 4294967275) |c_ULTIMATE.start_main_~x~0#1|) (< (+ (* 4294967296 (div (+ |c_ULTIMATE.start_main_~x~0#1| 18) 4294967296)) 268435436) |c_ULTIMATE.start_main_~x~0#1|) (< (+ 268435435 (* 2 (div .cse5 2))) |c_ULTIMATE.start_main_~x~0#1|))) (or (< (+ (* 4294967296 (div (+ |c_ULTIMATE.start_main_~x~0#1| 2) 4294967296)) 268435452) |c_ULTIMATE.start_main_~x~0#1|) (< (+ 4294967291 (* 4294967296 (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 268435451)) 4294967296))) |c_ULTIMATE.start_main_~x~0#1|) (let ((.cse6 (+ |c_ULTIMATE.start_main_~x~0#1| 1))) (< (* 2 (div .cse6 2)) .cse6))) (or (let ((.cse7 (+ |c_ULTIMATE.start_main_~x~0#1| 3))) (< (* (div .cse7 2) 2) .cse7)) (< (+ (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 268435449)) 4294967296) 4294967296) 4294967289) |c_ULTIMATE.start_main_~x~0#1|) (< (+ (* (div (+ |c_ULTIMATE.start_main_~x~0#1| 4) 4294967296) 4294967296) 268435450) |c_ULTIMATE.start_main_~x~0#1|)) (or (let ((.cse8 (+ |c_ULTIMATE.start_main_~x~0#1| 5))) (< (* (div .cse8 2) 2) .cse8)) (< (+ (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 268435447)) 4294967296) 4294967296) 4294967287) |c_ULTIMATE.start_main_~x~0#1|) (< (+ 268435448 (* (div (+ |c_ULTIMATE.start_main_~x~0#1| 6) 4294967296) 4294967296)) |c_ULTIMATE.start_main_~x~0#1|)) (or (< |c_ULTIMATE.start_main_~x~0#1| (+ 1 (* (div |c_ULTIMATE.start_main_~x~0#1| 2) 2))) (< (+ (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 268435453)) 4294967296) 4294967296) 4294967293) |c_ULTIMATE.start_main_~x~0#1|) (not .cse0)) (let ((.cse9 (+ |c_ULTIMATE.start_main_~x~0#1| (- 268435437)))) (or (< (+ 268435438 (* (div (+ |c_ULTIMATE.start_main_~x~0#1| 16) 4294967296) 4294967296)) |c_ULTIMATE.start_main_~x~0#1|) (< (+ (* (div .cse9 4294967296) 4294967296) 4294967277) |c_ULTIMATE.start_main_~x~0#1|) (< (+ (* (div .cse9 2) 2) 268435437) |c_ULTIMATE.start_main_~x~0#1|))))) is different from false [2022-11-03 03:56:43,430 WARN L234 SmtUtils]: Spent 5.07m on a formula simplification. DAG size of input: 246 DAG size of output: 245 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:56:45,447 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (< (mod |c_ULTIMATE.start_main_~x~0#1| 4294967296) 268435455))) (and (or .cse0 (= (mod |c_ULTIMATE.start_main_~x~0#1| 2) 0)) (or (< (+ (* (div (+ (- 268435445) |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 4294967296) 4294967285) |c_ULTIMATE.start_main_~x~0#1|) (let ((.cse1 (+ 7 |c_ULTIMATE.start_main_~x~0#1|))) (< (* 2 (div .cse1 2)) .cse1)) (< (+ 268435446 (* (div (+ |c_ULTIMATE.start_main_~x~0#1| 8) 4294967296) 4294967296)) |c_ULTIMATE.start_main_~x~0#1|)) (or (let ((.cse2 (+ |c_ULTIMATE.start_main_~x~0#1| 9))) (< (* (div .cse2 2) 2) .cse2)) (< (+ 4294967283 (* 4294967296 (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 268435443)) 4294967296))) |c_ULTIMATE.start_main_~x~0#1|) (< (+ (* (div (+ |c_ULTIMATE.start_main_~x~0#1| 10) 4294967296) 4294967296) 268435444) |c_ULTIMATE.start_main_~x~0#1|)) (let ((.cse3 (+ |c_ULTIMATE.start_main_~x~0#1| (- 268435439)))) (or (< (+ (* (div (+ |c_ULTIMATE.start_main_~x~0#1| 14) 4294967296) 4294967296) 268435440) |c_ULTIMATE.start_main_~x~0#1|) (< (+ (* (div .cse3 2) 2) 268435439) |c_ULTIMATE.start_main_~x~0#1|) (< (+ (* (div .cse3 4294967296) 4294967296) 4294967279) |c_ULTIMATE.start_main_~x~0#1|))) (let ((.cse4 (+ |c_ULTIMATE.start_main_~x~0#1| (- 268435441)))) (or (< (+ 268435441 (* (div .cse4 2) 2)) |c_ULTIMATE.start_main_~x~0#1|) (< (+ (* 4294967296 (div .cse4 4294967296)) 4294967281) |c_ULTIMATE.start_main_~x~0#1|) (< (+ 268435442 (* (div (+ |c_ULTIMATE.start_main_~x~0#1| 12) 4294967296) 4294967296)) |c_ULTIMATE.start_main_~x~0#1|))) (or (< (+ (* 4294967296 (div (+ |c_ULTIMATE.start_main_~x~0#1| 2) 4294967296)) 268435452) |c_ULTIMATE.start_main_~x~0#1|) (< (+ 4294967291 (* 4294967296 (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 268435451)) 4294967296))) |c_ULTIMATE.start_main_~x~0#1|) (let ((.cse5 (+ |c_ULTIMATE.start_main_~x~0#1| 1))) (< (* 2 (div .cse5 2)) .cse5))) (or (let ((.cse6 (+ |c_ULTIMATE.start_main_~x~0#1| 3))) (< (* (div .cse6 2) 2) .cse6)) (< (+ (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 268435449)) 4294967296) 4294967296) 4294967289) |c_ULTIMATE.start_main_~x~0#1|) (< (+ (* (div (+ |c_ULTIMATE.start_main_~x~0#1| 4) 4294967296) 4294967296) 268435450) |c_ULTIMATE.start_main_~x~0#1|)) (or (let ((.cse7 (+ |c_ULTIMATE.start_main_~x~0#1| 5))) (< (* (div .cse7 2) 2) .cse7)) (< (+ (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 268435447)) 4294967296) 4294967296) 4294967287) |c_ULTIMATE.start_main_~x~0#1|) (< (+ 268435448 (* (div (+ |c_ULTIMATE.start_main_~x~0#1| 6) 4294967296) 4294967296)) |c_ULTIMATE.start_main_~x~0#1|)) (or (< |c_ULTIMATE.start_main_~x~0#1| (+ 1 (* (div |c_ULTIMATE.start_main_~x~0#1| 2) 2))) (< (+ (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 268435453)) 4294967296) 4294967296) 4294967293) |c_ULTIMATE.start_main_~x~0#1|) (not .cse0)) (let ((.cse8 (+ |c_ULTIMATE.start_main_~x~0#1| (- 268435437)))) (or (< (+ 268435438 (* (div (+ |c_ULTIMATE.start_main_~x~0#1| 16) 4294967296) 4294967296)) |c_ULTIMATE.start_main_~x~0#1|) (< (+ (* (div .cse8 4294967296) 4294967296) 4294967277) |c_ULTIMATE.start_main_~x~0#1|) (< (+ (* (div .cse8 2) 2) 268435437) |c_ULTIMATE.start_main_~x~0#1|))))) is different from false [2022-11-03 03:56:47,480 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (< (mod |c_ULTIMATE.start_main_~x~0#1| 4294967296) 268435455))) (and (or .cse0 (= (mod |c_ULTIMATE.start_main_~x~0#1| 2) 0)) (or (< (+ (* (div (+ (- 268435445) |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 4294967296) 4294967285) |c_ULTIMATE.start_main_~x~0#1|) (let ((.cse1 (+ 7 |c_ULTIMATE.start_main_~x~0#1|))) (< (* 2 (div .cse1 2)) .cse1)) (< (+ 268435446 (* (div (+ |c_ULTIMATE.start_main_~x~0#1| 8) 4294967296) 4294967296)) |c_ULTIMATE.start_main_~x~0#1|)) (or (let ((.cse2 (+ |c_ULTIMATE.start_main_~x~0#1| 9))) (< (* (div .cse2 2) 2) .cse2)) (< (+ 4294967283 (* 4294967296 (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 268435443)) 4294967296))) |c_ULTIMATE.start_main_~x~0#1|) (< (+ (* (div (+ |c_ULTIMATE.start_main_~x~0#1| 10) 4294967296) 4294967296) 268435444) |c_ULTIMATE.start_main_~x~0#1|)) (let ((.cse3 (+ |c_ULTIMATE.start_main_~x~0#1| (- 268435439)))) (or (< (+ (* (div (+ |c_ULTIMATE.start_main_~x~0#1| 14) 4294967296) 4294967296) 268435440) |c_ULTIMATE.start_main_~x~0#1|) (< (+ (* (div .cse3 2) 2) 268435439) |c_ULTIMATE.start_main_~x~0#1|) (< (+ (* (div .cse3 4294967296) 4294967296) 4294967279) |c_ULTIMATE.start_main_~x~0#1|))) (let ((.cse4 (+ |c_ULTIMATE.start_main_~x~0#1| (- 268435441)))) (or (< (+ 268435441 (* (div .cse4 2) 2)) |c_ULTIMATE.start_main_~x~0#1|) (< (+ (* 4294967296 (div .cse4 4294967296)) 4294967281) |c_ULTIMATE.start_main_~x~0#1|) (< (+ 268435442 (* (div (+ |c_ULTIMATE.start_main_~x~0#1| 12) 4294967296) 4294967296)) |c_ULTIMATE.start_main_~x~0#1|))) (or (< (+ (* 4294967296 (div (+ |c_ULTIMATE.start_main_~x~0#1| 2) 4294967296)) 268435452) |c_ULTIMATE.start_main_~x~0#1|) (< (+ 4294967291 (* 4294967296 (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 268435451)) 4294967296))) |c_ULTIMATE.start_main_~x~0#1|) (let ((.cse5 (+ |c_ULTIMATE.start_main_~x~0#1| 1))) (< (* 2 (div .cse5 2)) .cse5))) (or (let ((.cse6 (+ |c_ULTIMATE.start_main_~x~0#1| 3))) (< (* (div .cse6 2) 2) .cse6)) (< (+ (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 268435449)) 4294967296) 4294967296) 4294967289) |c_ULTIMATE.start_main_~x~0#1|) (< (+ (* (div (+ |c_ULTIMATE.start_main_~x~0#1| 4) 4294967296) 4294967296) 268435450) |c_ULTIMATE.start_main_~x~0#1|)) (or (let ((.cse7 (+ |c_ULTIMATE.start_main_~x~0#1| 5))) (< (* (div .cse7 2) 2) .cse7)) (< (+ (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 268435447)) 4294967296) 4294967296) 4294967287) |c_ULTIMATE.start_main_~x~0#1|) (< (+ 268435448 (* (div (+ |c_ULTIMATE.start_main_~x~0#1| 6) 4294967296) 4294967296)) |c_ULTIMATE.start_main_~x~0#1|)) (or (< |c_ULTIMATE.start_main_~x~0#1| (+ 1 (* (div |c_ULTIMATE.start_main_~x~0#1| 2) 2))) (< (+ (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 268435453)) 4294967296) 4294967296) 4294967293) |c_ULTIMATE.start_main_~x~0#1|) (not .cse0)))) is different from false [2022-11-03 03:58:11,059 WARN L234 SmtUtils]: Spent 52.85s on a formula simplification. DAG size of input: 143 DAG size of output: 24 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:59:13,448 WARN L234 SmtUtils]: Spent 36.39s on a formula simplification. DAG size of input: 123 DAG size of output: 24 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:59:46,827 WARN L234 SmtUtils]: Spent 12.88s on a formula simplification. DAG size of input: 103 DAG size of output: 24 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:00:13,272 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []