./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops-crafted-1/mono-crafted_10.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a 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_8e104bc9-b5ab-40b5-9424-71f0f50886ff/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e104bc9-b5ab-40b5-9424-71f0f50886ff/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e104bc9-b5ab-40b5-9424-71f0f50886ff/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e104bc9-b5ab-40b5-9424-71f0f50886ff/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/loops-crafted-1/mono-crafted_10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e104bc9-b5ab-40b5-9424-71f0f50886ff/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e104bc9-b5ab-40b5-9424-71f0f50886ff/bin/utaipan-ByfvJB40ur --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8c5f43b3e9ff1d4598a5a525fe9e716f863331c4c517b4b8adb0491943243286 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-26 00:19:42,004 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:19:42,006 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:19:42,028 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:19:42,029 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:19:42,030 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:19:42,031 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:19:42,033 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:19:42,035 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:19:42,036 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:19:42,037 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:19:42,038 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:19:42,039 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:19:42,040 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:19:42,041 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:19:42,042 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:19:42,043 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:19:42,044 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:19:42,046 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:19:42,048 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:19:42,049 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:19:42,050 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:19:42,052 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:19:42,053 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:19:42,056 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:19:42,056 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:19:42,057 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:19:42,058 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:19:42,058 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:19:42,060 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:19:42,060 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:19:42,061 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:19:42,062 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:19:42,063 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:19:42,064 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:19:42,064 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:19:42,065 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:19:42,066 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:19:42,066 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:19:42,067 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:19:42,068 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:19:42,069 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e104bc9-b5ab-40b5-9424-71f0f50886ff/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-26 00:19:42,093 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:19:42,093 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:19:42,094 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:19:42,094 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:19:42,095 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:19:42,095 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:19:42,095 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:19:42,096 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:19:42,096 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:19:42,096 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:19:42,096 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:19:42,097 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:19:42,097 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:19:42,097 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:19:42,097 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:19:42,098 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:19:42,098 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:19:42,098 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:19:42,099 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:19:42,099 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-26 00:19:42,100 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:19:42,100 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-26 00:19:42,100 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:19:42,100 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:19:42,101 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:19:42,101 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:19:42,101 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-26 00:19:42,101 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:19:42,102 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:19:42,102 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:19:42,102 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:19:42,102 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:19:42,103 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:19:42,103 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:19:42,103 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:19:42,103 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:19:42,104 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:19:42,104 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:19:42,104 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:19:42,104 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:19:42,105 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:19:42,105 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_8e104bc9-b5ab-40b5-9424-71f0f50886ff/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e104bc9-b5ab-40b5-9424-71f0f50886ff/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8c5f43b3e9ff1d4598a5a525fe9e716f863331c4c517b4b8adb0491943243286 [2022-11-26 00:19:42,362 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:19:42,386 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:19:42,389 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:19:42,390 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:19:42,391 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:19:42,393 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e104bc9-b5ab-40b5-9424-71f0f50886ff/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/loops-crafted-1/mono-crafted_10.c [2022-11-26 00:19:45,489 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:19:45,693 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:19:45,693 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e104bc9-b5ab-40b5-9424-71f0f50886ff/sv-benchmarks/c/loops-crafted-1/mono-crafted_10.c [2022-11-26 00:19:45,699 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e104bc9-b5ab-40b5-9424-71f0f50886ff/bin/utaipan-ByfvJB40ur/data/6b77cb2eb/f0a48478231a43108d5d2296fa2a514b/FLAG98ede7571 [2022-11-26 00:19:45,715 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e104bc9-b5ab-40b5-9424-71f0f50886ff/bin/utaipan-ByfvJB40ur/data/6b77cb2eb/f0a48478231a43108d5d2296fa2a514b [2022-11-26 00:19:45,718 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:19:45,719 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:19:45,721 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:19:45,721 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:19:45,725 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:19:45,725 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:19:45" (1/1) ... [2022-11-26 00:19:45,727 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75485e88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:19:45, skipping insertion in model container [2022-11-26 00:19:45,727 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:19:45" (1/1) ... [2022-11-26 00:19:45,735 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:19:45,748 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:19:45,915 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_8e104bc9-b5ab-40b5-9424-71f0f50886ff/sv-benchmarks/c/loops-crafted-1/mono-crafted_10.c[319,332] [2022-11-26 00:19:45,928 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:19:45,938 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:19:45,949 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_8e104bc9-b5ab-40b5-9424-71f0f50886ff/sv-benchmarks/c/loops-crafted-1/mono-crafted_10.c[319,332] [2022-11-26 00:19:45,952 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:19:45,965 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:19:45,965 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:19:45 WrapperNode [2022-11-26 00:19:45,966 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:19:45,967 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:19:45,967 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:19:45,967 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:19:45,975 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:19:45" (1/1) ... [2022-11-26 00:19:45,982 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:19:45" (1/1) ... [2022-11-26 00:19:45,999 INFO L138 Inliner]: procedures = 12, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 32 [2022-11-26 00:19:46,000 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:19:46,000 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:19:46,001 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:19:46,001 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:19:46,010 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:19:45" (1/1) ... [2022-11-26 00:19:46,010 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:19:45" (1/1) ... [2022-11-26 00:19:46,011 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:19:45" (1/1) ... [2022-11-26 00:19:46,012 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:19:45" (1/1) ... [2022-11-26 00:19:46,014 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:19:45" (1/1) ... [2022-11-26 00:19:46,017 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:19:45" (1/1) ... [2022-11-26 00:19:46,018 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:19:45" (1/1) ... [2022-11-26 00:19:46,019 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:19:45" (1/1) ... [2022-11-26 00:19:46,021 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:19:46,022 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:19:46,022 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:19:46,022 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:19:46,023 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:19:45" (1/1) ... [2022-11-26 00:19:46,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:19:46,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e104bc9-b5ab-40b5-9424-71f0f50886ff/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:19:46,056 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e104bc9-b5ab-40b5-9424-71f0f50886ff/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:19:46,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e104bc9-b5ab-40b5-9424-71f0f50886ff/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:19:46,105 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:19:46,105 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:19:46,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:19:46,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:19:46,171 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:19:46,173 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:19:46,276 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:19:46,326 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:19:46,326 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-26 00:19:46,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:19:46 BoogieIcfgContainer [2022-11-26 00:19:46,329 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:19:46,331 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:19:46,331 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:19:46,334 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:19:46,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:19:45" (1/3) ... [2022-11-26 00:19:46,335 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bb8b7db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:19:46, skipping insertion in model container [2022-11-26 00:19:46,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:19:45" (2/3) ... [2022-11-26 00:19:46,335 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bb8b7db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:19:46, skipping insertion in model container [2022-11-26 00:19:46,336 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:19:46" (3/3) ... [2022-11-26 00:19:46,337 INFO L112 eAbstractionObserver]: Analyzing ICFG mono-crafted_10.c [2022-11-26 00:19:46,357 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:19:46,357 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-26 00:19:46,404 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:19:46,412 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;@5298c1ac, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:19:46,412 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-26 00:19:46,416 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) [2022-11-26 00:19:46,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-26 00:19:46,423 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:19:46,423 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-26 00:19:46,424 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:19:46,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:19:46,430 INFO L85 PathProgramCache]: Analyzing trace with hash 2065030, now seen corresponding path program 1 times [2022-11-26 00:19:46,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:19:46,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769873449] [2022-11-26 00:19:46,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:19:46,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:19:46,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:19:46,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:19:46,911 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:19:46,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769873449] [2022-11-26 00:19:46,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769873449] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:19:46,912 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:19:46,912 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:19:46,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666744875] [2022-11-26 00:19:46,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:19:46,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:19:46,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:19:46,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:19:46,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:19:46,950 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) [2022-11-26 00:19:47,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:19:47,004 INFO L93 Difference]: Finished difference Result 13 states and 15 transitions. [2022-11-26 00:19:47,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:19:47,007 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 [2022-11-26 00:19:47,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:19:47,014 INFO L225 Difference]: With dead ends: 13 [2022-11-26 00:19:47,031 INFO L226 Difference]: Without dead ends: 6 [2022-11-26 00:19:47,033 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 [2022-11-26 00:19:47,037 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 [2022-11-26 00:19:47,038 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] [2022-11-26 00:19:47,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2022-11-26 00:19:47,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2022-11-26 00:19:47,104 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) [2022-11-26 00:19:47,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2022-11-26 00:19:47,105 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 6 transitions. Word has length 4 [2022-11-26 00:19:47,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:19:47,106 INFO L495 AbstractCegarLoop]: Abstraction has 6 states and 6 transitions. [2022-11-26 00:19:47,106 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) [2022-11-26 00:19:47,107 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2022-11-26 00:19:47,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-26 00:19:47,107 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:19:47,107 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-26 00:19:47,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 00:19:47,108 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:19:47,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:19:47,109 INFO L85 PathProgramCache]: Analyzing trace with hash 64119683, now seen corresponding path program 1 times [2022-11-26 00:19:47,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:19:47,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250562520] [2022-11-26 00:19:47,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:19:47,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:19:47,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:19:47,268 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:19:47,268 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:19:47,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250562520] [2022-11-26 00:19:47,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250562520] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:19:47,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [384541700] [2022-11-26 00:19:47,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:19:47,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:19:47,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e104bc9-b5ab-40b5-9424-71f0f50886ff/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:19:47,274 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e104bc9-b5ab-40b5-9424-71f0f50886ff/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:19:47,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e104bc9-b5ab-40b5-9424-71f0f50886ff/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-26 00:19:47,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:19:47,361 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-26 00:19:47,366 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:19:47,511 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:19:47,511 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:19:47,578 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:19:47,580 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [384541700] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:19:47,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1453955381] [2022-11-26 00:19:47,612 INFO L159 IcfgInterpreter]: Started Sifa with 5 locations of interest [2022-11-26 00:19:47,612 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:19:47,620 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:19:47,624 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:19:47,627 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:19:48,044 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 00:19:48,157 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '69#(and (not (< (mod |ULTIMATE.start_main_~x~0#1| 4294967296) (mod |ULTIMATE.start_main_~y~0#1| 4294967296))) (= |ULTIMATE.start_main_~y~0#1| 10000000) (<= 0 |ULTIMATE.start_main_~x~0#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= 5000000 |ULTIMATE.start_main_~z~0#1|) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0) (= (ite (= (mod |ULTIMATE.start_main_~x~0#1| 4294967296) (mod |ULTIMATE.start_main_~z~0#1| 4294967296)) 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond#1|))' at error location [2022-11-26 00:19:48,158 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-26 00:19:48,158 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-26 00:19:48,161 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2022-11-26 00:19:48,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013807353] [2022-11-26 00:19:48,166 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-26 00:19:48,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-26 00:19:48,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:19:48,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-26 00:19:48,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-26 00:19:48,170 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) [2022-11-26 00:19:48,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:19:48,264 INFO L93 Difference]: Finished difference Result 12 states and 14 transitions. [2022-11-26 00:19:48,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-26 00:19:48,265 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 [2022-11-26 00:19:48,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:19:48,265 INFO L225 Difference]: With dead ends: 12 [2022-11-26 00:19:48,266 INFO L226 Difference]: Without dead ends: 9 [2022-11-26 00:19:48,266 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2022-11-26 00:19:48,268 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 2 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:19:48,269 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 8 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:19:48,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2022-11-26 00:19:48,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2022-11-26 00:19:48,272 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) [2022-11-26 00:19:48,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-26 00:19:48,273 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-26 00:19:48,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:19:48,273 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-26 00:19:48,273 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) [2022-11-26 00:19:48,273 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-26 00:19:48,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-26 00:19:48,274 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:19:48,274 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1] [2022-11-26 00:19:48,285 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e104bc9-b5ab-40b5-9424-71f0f50886ff/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-26 00:19:48,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e104bc9-b5ab-40b5-9424-71f0f50886ff/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:19:48,480 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:19:48,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:19:48,482 INFO L85 PathProgramCache]: Analyzing trace with hash -967943738, now seen corresponding path program 2 times [2022-11-26 00:19:48,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:19:48,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586744555] [2022-11-26 00:19:48,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:19:48,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:19:48,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:19:48,821 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:19:48,822 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:19:48,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586744555] [2022-11-26 00:19:48,826 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586744555] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:19:48,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [375593497] [2022-11-26 00:19:48,827 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-26 00:19:48,828 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:19:48,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e104bc9-b5ab-40b5-9424-71f0f50886ff/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:19:48,829 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e104bc9-b5ab-40b5-9424-71f0f50886ff/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:19:48,836 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e104bc9-b5ab-40b5-9424-71f0f50886ff/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-26 00:19:48,893 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-26 00:19:48,893 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:19:48,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-26 00:19:48,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:19:49,021 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:19:49,021 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:19:49,151 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:19:49,151 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [375593497] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:19:49,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [788508438] [2022-11-26 00:19:49,154 INFO L159 IcfgInterpreter]: Started Sifa with 5 locations of interest [2022-11-26 00:19:49,154 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:19:49,154 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:19:49,154 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:19:49,154 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:19:49,236 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 00:19:49,504 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '163#(and (not (< (mod |ULTIMATE.start_main_~x~0#1| 4294967296) (mod |ULTIMATE.start_main_~y~0#1| 4294967296))) (= |ULTIMATE.start_main_~y~0#1| 10000000) (<= 0 |ULTIMATE.start_main_~x~0#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= 5000000 |ULTIMATE.start_main_~z~0#1|) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0) (= (ite (= (mod |ULTIMATE.start_main_~x~0#1| 4294967296) (mod |ULTIMATE.start_main_~z~0#1| 4294967296)) 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond#1|))' at error location [2022-11-26 00:19:49,504 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-26 00:19:49,504 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-26 00:19:49,504 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 15 [2022-11-26 00:19:49,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387404749] [2022-11-26 00:19:49,505 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-26 00:19:49,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-26 00:19:49,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:19:49,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-26 00:19:49,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=248, Unknown=0, NotChecked=0, Total=342 [2022-11-26 00:19:49,507 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) [2022-11-26 00:19:50,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:19:50,143 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2022-11-26 00:19:50,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-26 00:19:50,144 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 [2022-11-26 00:19:50,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:19:50,145 INFO L225 Difference]: With dead ends: 18 [2022-11-26 00:19:50,145 INFO L226 Difference]: Without dead ends: 15 [2022-11-26 00:19:50,145 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 [2022-11-26 00:19:50,146 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:19:50,147 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 16 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:19:50,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-11-26 00:19:50,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-11-26 00:19:50,152 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) [2022-11-26 00:19:50,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-11-26 00:19:50,152 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 8 [2022-11-26 00:19:50,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:19:50,153 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-11-26 00:19:50,153 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) [2022-11-26 00:19:50,153 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-11-26 00:19:50,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-26 00:19:50,154 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:19:50,154 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1] [2022-11-26 00:19:50,163 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e104bc9-b5ab-40b5-9424-71f0f50886ff/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-26 00:19:50,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e104bc9-b5ab-40b5-9424-71f0f50886ff/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:19:50,360 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:19:50,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:19:50,361 INFO L85 PathProgramCache]: Analyzing trace with hash -313388890, now seen corresponding path program 3 times [2022-11-26 00:19:50,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:19:50,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538796915] [2022-11-26 00:19:50,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:19:50,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:19:50,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:19:50,803 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:19:50,803 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:19:50,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538796915] [2022-11-26 00:19:50,803 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538796915] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:19:50,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [416416369] [2022-11-26 00:19:50,804 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-26 00:19:50,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:19:50,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e104bc9-b5ab-40b5-9424-71f0f50886ff/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:19:50,807 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e104bc9-b5ab-40b5-9424-71f0f50886ff/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:19:50,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e104bc9-b5ab-40b5-9424-71f0f50886ff/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-26 00:19:50,897 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-26 00:19:50,897 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:19:50,899 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-26 00:19:50,901 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:19:51,232 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:19:51,234 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:19:51,672 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:19:51,673 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [416416369] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:19:51,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [963052019] [2022-11-26 00:19:51,675 INFO L159 IcfgInterpreter]: Started Sifa with 5 locations of interest [2022-11-26 00:19:51,675 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:19:51,675 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:19:51,675 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:19:51,675 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:19:51,782 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 00:19:52,196 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '341#(and (not (< (mod |ULTIMATE.start_main_~x~0#1| 4294967296) (mod |ULTIMATE.start_main_~y~0#1| 4294967296))) (= |ULTIMATE.start_main_~y~0#1| 10000000) (<= 0 |ULTIMATE.start_main_~x~0#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= 5000000 |ULTIMATE.start_main_~z~0#1|) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0) (= (ite (= (mod |ULTIMATE.start_main_~x~0#1| 4294967296) (mod |ULTIMATE.start_main_~z~0#1| 4294967296)) 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond#1|))' at error location [2022-11-26 00:19:52,196 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-26 00:19:52,196 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-26 00:19:52,197 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 33 [2022-11-26 00:19:52,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644048684] [2022-11-26 00:19:52,197 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-26 00:19:52,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-26 00:19:52,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:19:52,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-26 00:19:52,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=334, Invalid=998, Unknown=0, NotChecked=0, Total=1332 [2022-11-26 00:19:52,199 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) [2022-11-26 00:20:22,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:20:22,942 INFO L93 Difference]: Finished difference Result 30 states and 41 transitions. [2022-11-26 00:20:22,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-26 00:20:22,943 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 [2022-11-26 00:20:22,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:20:22,944 INFO L225 Difference]: With dead ends: 30 [2022-11-26 00:20:22,944 INFO L226 Difference]: Without dead ends: 27 [2022-11-26 00:20:22,945 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 607 ImplicationChecksByTransitivity, 31.4s TimeCoverageRelationStatistics Valid=674, Invalid=1488, Unknown=0, NotChecked=0, Total=2162 [2022-11-26 00:20:22,946 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:20:22,946 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-26 00:20:22,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-11-26 00:20:22,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-11-26 00:20:22,957 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) [2022-11-26 00:20:22,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2022-11-26 00:20:22,958 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 14 [2022-11-26 00:20:22,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:20:22,958 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2022-11-26 00:20:22,959 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) [2022-11-26 00:20:22,959 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2022-11-26 00:20:22,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-26 00:20:22,959 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:20:22,960 INFO L195 NwaCegarLoop]: trace histogram [22, 1, 1, 1, 1] [2022-11-26 00:20:22,970 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e104bc9-b5ab-40b5-9424-71f0f50886ff/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-26 00:20:23,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e104bc9-b5ab-40b5-9424-71f0f50886ff/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:20:23,165 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:20:23,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:20:23,166 INFO L85 PathProgramCache]: Analyzing trace with hash 292652646, now seen corresponding path program 4 times [2022-11-26 00:20:23,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:20:23,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406824675] [2022-11-26 00:20:23,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:20:23,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:20:23,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:20:24,425 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:20:24,425 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:20:24,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406824675] [2022-11-26 00:20:24,426 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406824675] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:20:24,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2077298370] [2022-11-26 00:20:24,426 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-26 00:20:24,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:20:24,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e104bc9-b5ab-40b5-9424-71f0f50886ff/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:20:24,427 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e104bc9-b5ab-40b5-9424-71f0f50886ff/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:20:24,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e104bc9-b5ab-40b5-9424-71f0f50886ff/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-26 00:20:24,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:20:24,621 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 50 conjunts are in the unsatisfiable core [2022-11-26 00:20:24,624 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:20:25,771 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:20:25,772 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:20:28,539 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:20:28,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2077298370] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:20:28,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1031401902] [2022-11-26 00:20:28,541 INFO L159 IcfgInterpreter]: Started Sifa with 5 locations of interest [2022-11-26 00:20:28,541 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:20:28,541 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:20:28,542 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:20:28,542 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:20:28,687 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 00:20:29,500 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '687#(and (not (< (mod |ULTIMATE.start_main_~x~0#1| 4294967296) (mod |ULTIMATE.start_main_~y~0#1| 4294967296))) (= |ULTIMATE.start_main_~y~0#1| 10000000) (<= 0 |ULTIMATE.start_main_~x~0#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= 5000000 |ULTIMATE.start_main_~z~0#1|) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0) (= (ite (= (mod |ULTIMATE.start_main_~x~0#1| 4294967296) (mod |ULTIMATE.start_main_~z~0#1| 4294967296)) 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond#1|))' at error location [2022-11-26 00:20:29,500 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-26 00:20:29,500 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-26 00:20:29,500 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 69 [2022-11-26 00:20:29,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507612780] [2022-11-26 00:20:29,501 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-26 00:20:29,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 70 states [2022-11-26 00:20:29,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:20:29,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2022-11-26 00:20:29,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1290, Invalid=3966, Unknown=0, NotChecked=0, Total=5256 [2022-11-26 00:20:29,505 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) [2022-11-26 00:20:31,970 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse14 (mod |c_ULTIMATE.start_main_~y~0#1| 4294967296))) (let ((.cse4 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 3) 4294967296) .cse14)) (.cse5 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 2) 4294967296) .cse14)) (.cse9 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 15) 4294967296) .cse14)) (.cse2 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 12) 4294967296) .cse14)) (.cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 9) 4294967296) .cse14)) (.cse13 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 21) 4294967296) .cse14)) (.cse7 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 20) 4294967296) .cse14)) (.cse17 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 10) 4294967296) .cse14)) (.cse16 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 11) 4294967296) .cse14)) (.cse6 (< (mod (+ 19 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) .cse14)) (.cse1 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 8) 4294967296) .cse14)) (.cse15 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 14) 4294967296) .cse14)) (.cse3 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 13) 4294967296) .cse14)) (.cse8 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 16) 4294967296) .cse14)) (.cse18 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 18) 4294967296) .cse14)) (.cse20 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 17) 4294967296) .cse14)) (.cse11 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 4) 4294967296) .cse14)) (.cse21 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 5) 4294967296) .cse14)) (.cse10 (< (mod |c_ULTIMATE.start_main_~x~0#1| 4294967296) .cse14)) (.cse12 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 1) 4294967296) .cse14)) (.cse19 (< (mod (+ 7 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) .cse14)) (.cse22 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 6) 4294967296) .cse14))) (and (or .cse0 (not .cse1)) (or (not .cse2) .cse3) (or .cse4 (not .cse5)) (or (not .cse6) .cse7) (or .cse8 (not .cse9)) .cse10 (or (not .cse4) .cse11) (or .cse5 (not .cse12)) (or (not .cse13) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 22) 4294967296) .cse14)) (or .cse9 (not .cse15)) (or .cse2 (not .cse16)) (or (not .cse0) .cse17) (or .cse13 (not .cse7)) (or (not .cse17) .cse16) (or (not .cse18) .cse6) (or (not .cse19) .cse1) (or .cse15 (not .cse3)) (or (not .cse8) .cse20) (or .cse18 (not .cse20)) (or .cse21 (not .cse11)) (or (not .cse21) .cse22) (or (not .cse10) .cse12) (or .cse19 (not .cse22))))) is different from false [2022-11-26 00:24:30,212 WARN L233 SmtUtils]: Spent 3.28m on a formula simplification. DAG size of input: 133 DAG size of output: 91 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:24:32,221 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 [] [2022-11-26 00:24:34,790 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse7 (mod |c_ULTIMATE.start_main_~y~0#1| 4294967296))) (let ((.cse4 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 3) 4294967296) .cse7)) (.cse5 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 2) 4294967296) .cse7)) (.cse9 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 15) 4294967296) .cse7)) (.cse2 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 12) 4294967296) .cse7)) (.cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 9) 4294967296) .cse7)) (.cse15 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 10) 4294967296) .cse7)) (.cse14 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 11) 4294967296) .cse7)) (.cse6 (< (mod (+ 19 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) .cse7)) (.cse1 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 8) 4294967296) .cse7)) (.cse13 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 14) 4294967296) .cse7)) (.cse3 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 13) 4294967296) .cse7)) (.cse8 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 16) 4294967296) .cse7)) (.cse16 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 18) 4294967296) .cse7)) (.cse18 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 17) 4294967296) .cse7)) (.cse11 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 4) 4294967296) .cse7)) (.cse19 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 5) 4294967296) .cse7)) (.cse10 (< (mod |c_ULTIMATE.start_main_~x~0#1| 4294967296) .cse7)) (.cse12 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 1) 4294967296) .cse7)) (.cse17 (< (mod (+ 7 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) .cse7)) (.cse20 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 6) 4294967296) .cse7))) (and (or .cse0 (not .cse1)) (or (not .cse2) .cse3) (or .cse4 (not .cse5)) (or (not .cse6) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 20) 4294967296) .cse7)) (or .cse8 (not .cse9)) .cse10 (or (not .cse4) .cse11) (or .cse5 (not .cse12)) (or .cse9 (not .cse13)) (or .cse2 (not .cse14)) (or (not .cse0) .cse15) (or (not .cse15) .cse14) (or (not .cse16) .cse6) (or (not .cse17) .cse1) (or .cse13 (not .cse3)) (or (not .cse8) .cse18) (or .cse16 (not .cse18)) (or .cse19 (not .cse11)) (or (not .cse19) .cse20) (or (not .cse10) .cse12) (or .cse17 (not .cse20))))) is different from false [2022-11-26 00:24:36,801 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse15 (mod |c_ULTIMATE.start_main_~y~0#1| 4294967296))) (let ((.cse4 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 3) 4294967296) .cse15)) (.cse5 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 2) 4294967296) .cse15)) (.cse7 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 15) 4294967296) .cse15)) (.cse2 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 12) 4294967296) .cse15)) (.cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 9) 4294967296) .cse15)) (.cse13 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 10) 4294967296) .cse15)) (.cse12 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 11) 4294967296) .cse15)) (.cse1 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 8) 4294967296) .cse15)) (.cse11 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 14) 4294967296) .cse15)) (.cse3 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 13) 4294967296) .cse15)) (.cse6 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 16) 4294967296) .cse15)) (.cse14 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 18) 4294967296) .cse15)) (.cse17 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 17) 4294967296) .cse15)) (.cse9 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 4) 4294967296) .cse15)) (.cse18 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 5) 4294967296) .cse15)) (.cse8 (< (mod |c_ULTIMATE.start_main_~x~0#1| 4294967296) .cse15)) (.cse10 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 1) 4294967296) .cse15)) (.cse16 (< (mod (+ 7 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) .cse15)) (.cse19 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 6) 4294967296) .cse15))) (and (or .cse0 (not .cse1)) (or (not .cse2) .cse3) (or .cse4 (not .cse5)) (or .cse6 (not .cse7)) .cse8 (or (not .cse4) .cse9) (or .cse5 (not .cse10)) (or .cse7 (not .cse11)) (or .cse2 (not .cse12)) (or (not .cse0) .cse13) (or (not .cse13) .cse12) (or (not .cse14) (< (mod (+ 19 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) .cse15)) (or (not .cse16) .cse1) (or .cse11 (not .cse3)) (or (not .cse6) .cse17) (or .cse14 (not .cse17)) (or .cse18 (not .cse9)) (or (not .cse18) .cse19) (or (not .cse8) .cse10) (or .cse16 (not .cse19))))) is different from false [2022-11-26 00:27:40,226 WARN L233 SmtUtils]: Spent 2.37m on a formula simplification. DAG size of input: 115 DAG size of output: 79 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:27:42,019 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-26 00:30:13,162 WARN L233 SmtUtils]: Spent 1.90m on a formula simplification. DAG size of input: 109 DAG size of output: 75 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:32:27,330 WARN L233 SmtUtils]: Spent 1.73m on a formula simplification. DAG size of input: 103 DAG size of output: 71 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:34:03,796 WARN L233 SmtUtils]: Spent 1.22m on a formula simplification. DAG size of input: 97 DAG size of output: 67 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)