./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops-crafted-1/mono-crafted_8.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96192f2e-db72-4599-8df9-7cb9f6d718c1/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96192f2e-db72-4599-8df9-7cb9f6d718c1/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96192f2e-db72-4599-8df9-7cb9f6d718c1/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96192f2e-db72-4599-8df9-7cb9f6d718c1/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/loops-crafted-1/mono-crafted_8.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96192f2e-db72-4599-8df9-7cb9f6d718c1/bin/utaipan-g80aRyZoba/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96192f2e-db72-4599-8df9-7cb9f6d718c1/bin/utaipan-g80aRyZoba --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 e1972ee33272415a52c6f0d8a1f799e9d488ad771872c0cf36a214b07ea597fd --- 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-b5237d8 [2022-11-22 01:07:49,001 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:07:49,003 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:07:49,031 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:07:49,032 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:07:49,036 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:07:49,038 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:07:49,042 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:07:49,044 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:07:49,050 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:07:49,052 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:07:49,054 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:07:49,054 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:07:49,060 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:07:49,061 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:07:49,063 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:07:49,065 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:07:49,066 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:07:49,069 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:07:49,075 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:07:49,077 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:07:49,079 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:07:49,081 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:07:49,082 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:07:49,092 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:07:49,092 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:07:49,093 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:07:49,095 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:07:49,097 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:07:49,098 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:07:49,099 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:07:49,100 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:07:49,102 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:07:49,104 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:07:49,105 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:07:49,105 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:07:49,106 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:07:49,107 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:07:49,107 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:07:49,109 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:07:49,110 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:07:49,111 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96192f2e-db72-4599-8df9-7cb9f6d718c1/bin/utaipan-g80aRyZoba/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-22 01:07:49,155 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:07:49,155 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:07:49,156 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:07:49,156 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:07:49,157 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:07:49,157 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:07:49,158 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:07:49,158 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:07:49,158 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:07:49,159 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:07:49,160 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:07:49,160 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:07:49,160 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:07:49,161 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:07:49,161 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:07:49,161 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:07:49,162 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:07:49,162 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:07:49,163 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:07:49,164 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 01:07:49,164 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:07:49,164 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 01:07:49,164 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:07:49,165 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:07:49,165 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:07:49,165 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:07:49,166 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 01:07:49,167 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:07:49,167 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:07:49,167 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:07:49,167 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:07:49,168 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:07:49,168 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:07:49,169 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:07:49,169 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:07:49,169 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:07:49,170 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:07:49,170 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:07:49,170 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:07:49,170 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:07:49,171 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:07:49,171 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_96192f2e-db72-4599-8df9-7cb9f6d718c1/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96192f2e-db72-4599-8df9-7cb9f6d718c1/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e1972ee33272415a52c6f0d8a1f799e9d488ad771872c0cf36a214b07ea597fd [2022-11-22 01:07:49,481 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:07:49,516 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:07:49,531 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:07:49,533 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:07:49,533 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:07:49,534 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96192f2e-db72-4599-8df9-7cb9f6d718c1/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/loops-crafted-1/mono-crafted_8.c [2022-11-22 01:07:52,595 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:07:52,779 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:07:52,779 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96192f2e-db72-4599-8df9-7cb9f6d718c1/sv-benchmarks/c/loops-crafted-1/mono-crafted_8.c [2022-11-22 01:07:52,786 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96192f2e-db72-4599-8df9-7cb9f6d718c1/bin/utaipan-g80aRyZoba/data/def79c41d/6236a845a3fc4a43a15bdcd01775ff27/FLAG15d54a33d [2022-11-22 01:07:52,803 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96192f2e-db72-4599-8df9-7cb9f6d718c1/bin/utaipan-g80aRyZoba/data/def79c41d/6236a845a3fc4a43a15bdcd01775ff27 [2022-11-22 01:07:52,806 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:07:52,807 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:07:52,809 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:07:52,809 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:07:52,815 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:07:52,816 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:07:52" (1/1) ... [2022-11-22 01:07:52,817 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b3369cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:52, skipping insertion in model container [2022-11-22 01:07:52,818 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:07:52" (1/1) ... [2022-11-22 01:07:52,826 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:07:52,841 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:07:52,993 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_96192f2e-db72-4599-8df9-7cb9f6d718c1/sv-benchmarks/c/loops-crafted-1/mono-crafted_8.c[318,331] [2022-11-22 01:07:53,015 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:07:53,031 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:07:53,045 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_96192f2e-db72-4599-8df9-7cb9f6d718c1/sv-benchmarks/c/loops-crafted-1/mono-crafted_8.c[318,331] [2022-11-22 01:07:53,051 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:07:53,065 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:07:53,066 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:53 WrapperNode [2022-11-22 01:07:53,066 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:07:53,068 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:07:53,068 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:07:53,068 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:07:53,076 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:53" (1/1) ... [2022-11-22 01:07:53,085 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:53" (1/1) ... [2022-11-22 01:07:53,105 INFO L138 Inliner]: procedures = 12, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 32 [2022-11-22 01:07:53,106 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:07:53,107 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:07:53,107 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:07:53,107 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:07:53,117 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:53" (1/1) ... [2022-11-22 01:07:53,118 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:53" (1/1) ... [2022-11-22 01:07:53,120 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:53" (1/1) ... [2022-11-22 01:07:53,121 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:53" (1/1) ... [2022-11-22 01:07:53,126 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:53" (1/1) ... [2022-11-22 01:07:53,129 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:53" (1/1) ... [2022-11-22 01:07:53,136 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:53" (1/1) ... [2022-11-22 01:07:53,137 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:53" (1/1) ... [2022-11-22 01:07:53,144 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:07:53,145 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:07:53,145 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:07:53,146 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:07:53,146 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:53" (1/1) ... [2022-11-22 01:07:53,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:07:53,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96192f2e-db72-4599-8df9-7cb9f6d718c1/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:07:53,182 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96192f2e-db72-4599-8df9-7cb9f6d718c1/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:07:53,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96192f2e-db72-4599-8df9-7cb9f6d718c1/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:07:53,243 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:07:53,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:07:53,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:07:53,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 01:07:53,324 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:07:53,326 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:07:53,468 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:07:53,543 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:07:53,544 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-22 01:07:53,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:07:53 BoogieIcfgContainer [2022-11-22 01:07:53,557 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:07:53,559 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:07:53,559 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:07:53,562 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:07:53,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:07:52" (1/3) ... [2022-11-22 01:07:53,563 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5da00224 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:07:53, skipping insertion in model container [2022-11-22 01:07:53,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:53" (2/3) ... [2022-11-22 01:07:53,564 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5da00224 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:07:53, skipping insertion in model container [2022-11-22 01:07:53,564 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:07:53" (3/3) ... [2022-11-22 01:07:53,565 INFO L112 eAbstractionObserver]: Analyzing ICFG mono-crafted_8.c [2022-11-22 01:07:53,587 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:07:53,588 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 01:07:53,638 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:07:53,646 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;@7530e7ca, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:07:53,646 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 01:07:53,651 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) [2022-11-22 01:07:53,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-22 01:07:53,658 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:07:53,659 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-22 01:07:53,660 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:07:53,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:07:53,666 INFO L85 PathProgramCache]: Analyzing trace with hash 2065030, now seen corresponding path program 1 times [2022-11-22 01:07:53,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:07:53,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904344071] [2022-11-22 01:07:53,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:07:53,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:07:53,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:07:54,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:07:54,069 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:07:54,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904344071] [2022-11-22 01:07:54,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904344071] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:07:54,071 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:07:54,071 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 01:07:54,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782080492] [2022-11-22 01:07:54,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:07:54,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:07:54,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:07:54,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:07:54,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:07:54,157 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) [2022-11-22 01:07:54,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:07:54,194 INFO L93 Difference]: Finished difference Result 13 states and 15 transitions. [2022-11-22 01:07:54,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:07:54,197 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 [2022-11-22 01:07:54,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:07:54,205 INFO L225 Difference]: With dead ends: 13 [2022-11-22 01:07:54,218 INFO L226 Difference]: Without dead ends: 6 [2022-11-22 01:07:54,221 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 [2022-11-22 01:07:54,225 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 [2022-11-22 01:07:54,239 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] [2022-11-22 01:07:54,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2022-11-22 01:07:54,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2022-11-22 01:07:54,281 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) [2022-11-22 01:07:54,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2022-11-22 01:07:54,283 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 6 transitions. Word has length 4 [2022-11-22 01:07:54,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:07:54,283 INFO L495 AbstractCegarLoop]: Abstraction has 6 states and 6 transitions. [2022-11-22 01:07:54,284 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) [2022-11-22 01:07:54,284 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2022-11-22 01:07:54,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-22 01:07:54,285 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:07:54,285 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-22 01:07:54,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 01:07:54,286 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:07:54,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:07:54,286 INFO L85 PathProgramCache]: Analyzing trace with hash 64119683, now seen corresponding path program 1 times [2022-11-22 01:07:54,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:07:54,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489473293] [2022-11-22 01:07:54,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:07:54,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:07:54,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:07:54,523 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:07:54,523 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:07:54,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489473293] [2022-11-22 01:07:54,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489473293] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:07:54,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2015527958] [2022-11-22 01:07:54,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:07:54,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:07:54,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96192f2e-db72-4599-8df9-7cb9f6d718c1/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:07:54,529 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96192f2e-db72-4599-8df9-7cb9f6d718c1/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:07:54,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96192f2e-db72-4599-8df9-7cb9f6d718c1/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 01:07:54,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:07:54,626 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-22 01:07:54,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:07:54,756 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:07:54,756 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:07:54,808 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:07:54,809 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2015527958] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:07:54,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1591892565] [2022-11-22 01:07:54,830 INFO L159 IcfgInterpreter]: Started Sifa with 5 locations of interest [2022-11-22 01:07:54,830 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:07:54,834 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:07:54,840 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:07:54,841 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:07:55,042 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:07:55,304 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_#in~cond#1| (ite (= (mod |ULTIMATE.start_main_~z~0#1| 4294967296) 0) 1 0)) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= |ULTIMATE.start_main_~z~0#1| 5000000) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-22 01:07:55,305 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:07:55,305 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:07:55,305 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2022-11-22 01:07:55,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477662897] [2022-11-22 01:07:55,306 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 01:07:55,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-22 01:07:55,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:07:55,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-22 01:07:55,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-22 01:07:55,309 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) [2022-11-22 01:07:55,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:07:55,390 INFO L93 Difference]: Finished difference Result 12 states and 14 transitions. [2022-11-22 01:07:55,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 01:07:55,392 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 [2022-11-22 01:07:55,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:07:55,393 INFO L225 Difference]: With dead ends: 12 [2022-11-22 01:07:55,393 INFO L226 Difference]: Without dead ends: 9 [2022-11-22 01:07:55,394 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2022-11-22 01:07:55,395 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 2 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:07:55,396 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 8 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:07:55,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2022-11-22 01:07:55,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2022-11-22 01:07:55,400 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) [2022-11-22 01:07:55,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-22 01:07:55,400 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-22 01:07:55,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:07:55,401 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-22 01:07:55,401 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) [2022-11-22 01:07:55,401 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-22 01:07:55,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-22 01:07:55,402 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:07:55,402 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1] [2022-11-22 01:07:55,415 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96192f2e-db72-4599-8df9-7cb9f6d718c1/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-22 01:07:55,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96192f2e-db72-4599-8df9-7cb9f6d718c1/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:07:55,609 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:07:55,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:07:55,610 INFO L85 PathProgramCache]: Analyzing trace with hash -967943738, now seen corresponding path program 2 times [2022-11-22 01:07:55,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:07:55,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304933723] [2022-11-22 01:07:55,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:07:55,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:07:55,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:07:56,044 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:07:56,045 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:07:56,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304933723] [2022-11-22 01:07:56,049 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304933723] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:07:56,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [964277833] [2022-11-22 01:07:56,050 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-22 01:07:56,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:07:56,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96192f2e-db72-4599-8df9-7cb9f6d718c1/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:07:56,055 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96192f2e-db72-4599-8df9-7cb9f6d718c1/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:07:56,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96192f2e-db72-4599-8df9-7cb9f6d718c1/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-22 01:07:56,128 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-22 01:07:56,128 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 01:07:56,130 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-22 01:07:56,131 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:07:56,265 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:07:56,266 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:07:56,384 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:07:56,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [964277833] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:07:56,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [909238573] [2022-11-22 01:07:56,387 INFO L159 IcfgInterpreter]: Started Sifa with 5 locations of interest [2022-11-22 01:07:56,387 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:07:56,387 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:07:56,388 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:07:56,388 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:07:56,491 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:07:56,771 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_#in~cond#1| (ite (= (mod |ULTIMATE.start_main_~z~0#1| 4294967296) 0) 1 0)) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= |ULTIMATE.start_main_~z~0#1| 5000000) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-22 01:07:56,771 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:07:56,771 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:07:56,772 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 15 [2022-11-22 01:07:56,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397460359] [2022-11-22 01:07:56,772 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 01:07:56,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-22 01:07:56,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:07:56,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-22 01:07:56,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=248, Unknown=0, NotChecked=0, Total=342 [2022-11-22 01:07:56,774 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) [2022-11-22 01:07:57,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:07:57,405 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2022-11-22 01:07:57,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-22 01:07:57,406 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 [2022-11-22 01:07:57,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:07:57,406 INFO L225 Difference]: With dead ends: 18 [2022-11-22 01:07:57,406 INFO L226 Difference]: Without dead ends: 15 [2022-11-22 01:07:57,407 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=158, Invalid=348, Unknown=0, NotChecked=0, Total=506 [2022-11-22 01:07:57,408 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:07:57,408 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 16 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:07:57,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-11-22 01:07:57,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-11-22 01:07:57,414 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) [2022-11-22 01:07:57,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-11-22 01:07:57,415 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 8 [2022-11-22 01:07:57,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:07:57,415 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-11-22 01:07:57,416 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) [2022-11-22 01:07:57,416 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-11-22 01:07:57,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-22 01:07:57,416 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:07:57,417 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1] [2022-11-22 01:07:57,428 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96192f2e-db72-4599-8df9-7cb9f6d718c1/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-22 01:07:57,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96192f2e-db72-4599-8df9-7cb9f6d718c1/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:07:57,622 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:07:57,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:07:57,622 INFO L85 PathProgramCache]: Analyzing trace with hash -313388890, now seen corresponding path program 3 times [2022-11-22 01:07:57,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:07:57,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811683909] [2022-11-22 01:07:57,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:07:57,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:07:57,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:07:58,177 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:07:58,177 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:07:58,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811683909] [2022-11-22 01:07:58,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811683909] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:07:58,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1065547167] [2022-11-22 01:07:58,178 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-22 01:07:58,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:07:58,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96192f2e-db72-4599-8df9-7cb9f6d718c1/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:07:58,179 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96192f2e-db72-4599-8df9-7cb9f6d718c1/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:07:58,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96192f2e-db72-4599-8df9-7cb9f6d718c1/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-22 01:07:58,270 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-22 01:07:58,271 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 01:07:58,272 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-22 01:07:58,274 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:07:58,646 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:07:58,647 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:07:59,134 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:07:59,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1065547167] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:07:59,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1811400026] [2022-11-22 01:07:59,137 INFO L159 IcfgInterpreter]: Started Sifa with 5 locations of interest [2022-11-22 01:07:59,137 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:07:59,138 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:07:59,138 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:07:59,138 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:07:59,329 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:07:59,705 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_#in~cond#1| (ite (= (mod |ULTIMATE.start_main_~z~0#1| 4294967296) 0) 1 0)) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= |ULTIMATE.start_main_~z~0#1| 5000000) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-22 01:07:59,705 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:07:59,705 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:07:59,705 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 33 [2022-11-22 01:07:59,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103437445] [2022-11-22 01:07:59,706 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 01:07:59,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-22 01:07:59,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:07:59,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-22 01:07:59,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=334, Invalid=998, Unknown=0, NotChecked=0, Total=1332 [2022-11-22 01:07:59,708 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) [2022-11-22 01:08:15,370 WARN L233 SmtUtils]: Spent 10.78s 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) [2022-11-22 01:08:26,220 WARN L233 SmtUtils]: Spent 6.59s on a formula simplification that was a NOOP. DAG size: 43 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 01:08:39,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:08:39,088 INFO L93 Difference]: Finished difference Result 30 states and 41 transitions. [2022-11-22 01:08:39,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-22 01:08:39,089 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 [2022-11-22 01:08:39,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:08:39,090 INFO L225 Difference]: With dead ends: 30 [2022-11-22 01:08:39,090 INFO L226 Difference]: Without dead ends: 27 [2022-11-22 01:08:39,091 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 606 ImplicationChecksByTransitivity, 39.7s TimeCoverageRelationStatistics Valid=674, Invalid=1488, Unknown=0, NotChecked=0, Total=2162 [2022-11-22 01:08:39,092 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-22 01:08:39,092 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-22 01:08:39,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-11-22 01:08:39,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-11-22 01:08:39,103 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) [2022-11-22 01:08:39,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2022-11-22 01:08:39,104 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 14 [2022-11-22 01:08:39,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:08:39,105 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2022-11-22 01:08:39,105 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) [2022-11-22 01:08:39,105 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2022-11-22 01:08:39,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-22 01:08:39,106 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:08:39,106 INFO L195 NwaCegarLoop]: trace histogram [22, 1, 1, 1, 1] [2022-11-22 01:08:39,119 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96192f2e-db72-4599-8df9-7cb9f6d718c1/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-22 01:08:39,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96192f2e-db72-4599-8df9-7cb9f6d718c1/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:08:39,313 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:08:39,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:08:39,314 INFO L85 PathProgramCache]: Analyzing trace with hash 292652646, now seen corresponding path program 4 times [2022-11-22 01:08:39,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:08:39,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988329257] [2022-11-22 01:08:39,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:08:39,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:08:39,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:08:40,573 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:08:40,573 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:08:40,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988329257] [2022-11-22 01:08:40,574 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988329257] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:08:40,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [104510440] [2022-11-22 01:08:40,574 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-22 01:08:40,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:08:40,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96192f2e-db72-4599-8df9-7cb9f6d718c1/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:08:40,576 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96192f2e-db72-4599-8df9-7cb9f6d718c1/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:08:40,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96192f2e-db72-4599-8df9-7cb9f6d718c1/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-22 01:08:40,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:08:40,828 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 51 conjunts are in the unsatisfiable core [2022-11-22 01:08:40,830 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:08:42,056 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:08:42,056 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:08:46,296 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:08:46,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [104510440] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:08:46,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [963214009] [2022-11-22 01:08:46,298 INFO L159 IcfgInterpreter]: Started Sifa with 5 locations of interest [2022-11-22 01:08:46,299 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:08:46,299 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:08:46,299 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:08:46,300 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:08:46,422 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:08:47,638 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_#in~cond#1| (ite (= (mod |ULTIMATE.start_main_~z~0#1| 4294967296) 0) 1 0)) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= |ULTIMATE.start_main_~z~0#1| 5000000) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-22 01:08:47,639 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:08:47,639 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:08:47,639 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 69 [2022-11-22 01:08:47,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921385357] [2022-11-22 01:08:47,640 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 01:08:47,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 70 states [2022-11-22 01:08:47,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:08:47,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2022-11-22 01:08:47,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1286, Invalid=3970, Unknown=0, NotChecked=0, Total=5256 [2022-11-22 01:08:47,644 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) [2022-11-22 01:08:50,149 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse5 (mod |c_ULTIMATE.start_main_~y~0#1| 4294967296))) (let ((.cse28 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 4) 4294967296) .cse5)) (.cse1 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 3) 4294967296) .cse5)) (.cse10 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 15) 4294967296) .cse5)) (.cse38 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 16) 4294967296) .cse5)) (.cse32 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 12) 4294967296) .cse5)) (.cse31 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 13) 4294967296) .cse5)) (.cse7 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 14) 4294967296) .cse5)) (.cse2 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 2) 4294967296) .cse5)) (.cse20 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 8) 4294967296) .cse5)) (.cse12 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 9) 4294967296) .cse5)) (.cse29 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 10) 4294967296) .cse5)) (.cse34 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 6) 4294967296) .cse5)) (.cse39 (< (mod (+ 7 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) .cse5)) (.cse37 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 1) 4294967296) .cse5)) (.cse14 (< (mod |c_ULTIMATE.start_main_~x~0#1| 4294967296) .cse5)) (.cse23 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 17) 4294967296) .cse5)) (.cse35 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 18) 4294967296) .cse5)) (.cse25 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 5) 4294967296) .cse5)) (.cse15 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 11) 4294967296) .cse5))) (let ((.cse8 (not .cse15)) (.cse11 (not .cse25)) (.cse3 (not .cse35)) (.cse19 (not .cse23)) (.cse0 (not .cse14)) (.cse27 (not .cse37)) (.cse16 (not .cse39)) (.cse13 (not .cse34)) (.cse6 (not .cse29)) (.cse30 (not .cse12)) (.cse17 (not .cse20)) (.cse26 (not .cse2)) (.cse24 (not .cse7)) (.cse22 (not .cse31)) (.cse9 (not .cse32)) (.cse18 (not .cse38)) (.cse4 (< (mod (+ 19 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) .cse5)) (.cse36 (not .cse10)) (.cse33 (not .cse1)) (.cse21 (not .cse28))) (and (or .cse0 .cse1) .cse2 (or .cse3 (not .cse4) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 22) 4294967296) .cse5)) (or .cse6 .cse7 .cse8) (or .cse9 .cse8 .cse10) (or .cse11 .cse12 .cse13) .cse14 (or .cse15 .cse16 .cse17) (or .cse18 .cse19 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 20) 4294967296) .cse5)) (or .cse11 .cse20 .cse21) (or .cse22 .cse23 .cse24) (or .cse25 .cse26 .cse27) (or .cse3 .cse19 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 21) 4294967296) .cse5)) (or .cse0 .cse28 .cse27) (or .cse16 .cse13 .cse29) (or .cse6 .cse30 .cse31) (or .cse32 .cse30 .cse17) (or .cse33 .cse26 .cse34) (or .cse35 .cse24 .cse36) .cse37 (or .cse22 .cse9 .cse38) (or .cse18 .cse4 .cse36) (or .cse33 .cse39 .cse21))))) is different from false [2022-11-22 01:08:52,168 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse17 (mod |c_ULTIMATE.start_main_~y~0#1| 4294967296))) (let ((.cse27 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 4) 4294967296) .cse17)) (.cse1 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 3) 4294967296) .cse17)) (.cse7 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 15) 4294967296) .cse17)) (.cse36 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 16) 4294967296) .cse17)) (.cse31 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 12) 4294967296) .cse17)) (.cse30 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 13) 4294967296) .cse17)) (.cse4 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 14) 4294967296) .cse17)) (.cse2 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 2) 4294967296) .cse17)) (.cse18 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 8) 4294967296) .cse17)) (.cse9 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 9) 4294967296) .cse17)) (.cse28 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 10) 4294967296) .cse17)) (.cse33 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 6) 4294967296) .cse17)) (.cse37 (< (mod (+ 7 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) .cse17)) (.cse35 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 1) 4294967296) .cse17)) (.cse11 (< (mod |c_ULTIMATE.start_main_~x~0#1| 4294967296) .cse17)) (.cse21 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 17) 4294967296) .cse17)) (.cse23 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 5) 4294967296) .cse17)) (.cse12 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 11) 4294967296) .cse17))) (let ((.cse5 (not .cse12)) (.cse8 (not .cse23)) (.cse16 (not .cse21)) (.cse0 (not .cse11)) (.cse25 (not .cse35)) (.cse13 (not .cse37)) (.cse10 (not .cse33)) (.cse3 (not .cse28)) (.cse29 (not .cse9)) (.cse14 (not .cse18)) (.cse24 (not .cse2)) (.cse26 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 18) 4294967296) .cse17)) (.cse22 (not .cse4)) (.cse20 (not .cse30)) (.cse6 (not .cse31)) (.cse15 (not .cse36)) (.cse34 (not .cse7)) (.cse32 (not .cse1)) (.cse19 (not .cse27))) (and (or .cse0 .cse1) .cse2 (or .cse3 .cse4 .cse5) (or .cse6 .cse5 .cse7) (or .cse8 .cse9 .cse10) .cse11 (or .cse12 .cse13 .cse14) (or .cse15 .cse16 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 20) 4294967296) .cse17)) (or .cse8 .cse18 .cse19) (or .cse20 .cse21 .cse22) (or .cse23 .cse24 .cse25) (or (not .cse26) .cse16 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 21) 4294967296) .cse17)) (or .cse0 .cse27 .cse25) (or .cse13 .cse10 .cse28) (or .cse3 .cse29 .cse30) (or .cse31 .cse29 .cse14) (or .cse32 .cse24 .cse33) (or .cse26 .cse22 .cse34) .cse35 (or .cse20 .cse6 .cse36) (or .cse15 (< (mod (+ 19 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) .cse17) .cse34) (or .cse32 .cse37 .cse19))))) is different from false [2022-11-22 01:08:54,182 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse17 (mod |c_ULTIMATE.start_main_~y~0#1| 4294967296))) (let ((.cse25 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 4) 4294967296) .cse17)) (.cse1 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 3) 4294967296) .cse17)) (.cse7 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 15) 4294967296) .cse17)) (.cse34 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 16) 4294967296) .cse17)) (.cse29 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 12) 4294967296) .cse17)) (.cse28 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 13) 4294967296) .cse17)) (.cse4 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 14) 4294967296) .cse17)) (.cse2 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 2) 4294967296) .cse17)) (.cse18 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 8) 4294967296) .cse17)) (.cse9 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 9) 4294967296) .cse17)) (.cse26 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 10) 4294967296) .cse17)) (.cse31 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 6) 4294967296) .cse17)) (.cse35 (< (mod (+ 7 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) .cse17)) (.cse33 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 1) 4294967296) .cse17)) (.cse11 (< (mod |c_ULTIMATE.start_main_~x~0#1| 4294967296) .cse17)) (.cse22 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 5) 4294967296) .cse17)) (.cse12 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 11) 4294967296) .cse17))) (let ((.cse5 (not .cse12)) (.cse8 (not .cse22)) (.cse16 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 17) 4294967296) .cse17)) (.cse0 (not .cse11)) (.cse24 (not .cse33)) (.cse13 (not .cse35)) (.cse10 (not .cse31)) (.cse3 (not .cse26)) (.cse27 (not .cse9)) (.cse14 (not .cse18)) (.cse23 (not .cse2)) (.cse21 (not .cse4)) (.cse20 (not .cse28)) (.cse6 (not .cse29)) (.cse15 (not .cse34)) (.cse32 (not .cse7)) (.cse30 (not .cse1)) (.cse19 (not .cse25))) (and (or .cse0 .cse1) .cse2 (or .cse3 .cse4 .cse5) (or .cse6 .cse5 .cse7) (or .cse8 .cse9 .cse10) .cse11 (or .cse12 .cse13 .cse14) (or .cse15 (not .cse16) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 20) 4294967296) .cse17)) (or .cse8 .cse18 .cse19) (or .cse20 .cse16 .cse21) (or .cse22 .cse23 .cse24) (or .cse0 .cse25 .cse24) (or .cse13 .cse10 .cse26) (or .cse3 .cse27 .cse28) (or .cse29 .cse27 .cse14) (or .cse30 .cse23 .cse31) (or (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 18) 4294967296) .cse17) .cse21 .cse32) .cse33 (or .cse20 .cse6 .cse34) (or .cse15 (< (mod (+ 19 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) .cse17) .cse32) (or .cse30 .cse35 .cse19))))) is different from false [2022-11-22 01:12:05,806 WARN L233 SmtUtils]: Spent 2.40m on a formula simplification. DAG size of input: 117 DAG size of output: 83 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 01:12:07,840 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-22 01:12:09,445 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-22 01:14:58,549 WARN L233 SmtUtils]: Spent 2.17m on a formula simplification. DAG size of input: 111 DAG size of output: 79 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 01:15:00,881 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-22 01:17:25,702 WARN L233 SmtUtils]: Spent 1.77m on a formula simplification. DAG size of input: 105 DAG size of output: 75 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 01:19:22,795 WARN L233 SmtUtils]: Spent 1.34m on a formula simplification. DAG size of input: 99 DAG size of output: 71 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 01:20:54,829 WARN L233 SmtUtils]: Spent 1.13m on a formula simplification. DAG size of input: 93 DAG size of output: 67 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 01:22:12,922 WARN L233 SmtUtils]: Spent 58.38s on a formula simplification. DAG size of input: 87 DAG size of output: 63 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 01:22:14,201 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-22 01:23:16,312 WARN L233 SmtUtils]: Spent 43.18s on a formula simplification. DAG size of input: 81 DAG size of output: 59 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)