./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-acceleration/diamond_1-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd5acef-7c5a-4c36-9b09-3ba21063a1ca/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd5acef-7c5a-4c36-9b09-3ba21063a1ca/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd5acef-7c5a-4c36-9b09-3ba21063a1ca/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd5acef-7c5a-4c36-9b09-3ba21063a1ca/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-acceleration/diamond_1-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd5acef-7c5a-4c36-9b09-3ba21063a1ca/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd5acef-7c5a-4c36-9b09-3ba21063a1ca/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bd9be28702be20fbd75b67eebfdc5f85895ff340c238c235c391c2a8578e7b23 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 05:48:49,589 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 05:48:49,591 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 05:48:49,604 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 05:48:49,604 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 05:48:49,605 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 05:48:49,606 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 05:48:49,607 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 05:48:49,608 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 05:48:49,608 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 05:48:49,609 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 05:48:49,610 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 05:48:49,610 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 05:48:49,611 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 05:48:49,612 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 05:48:49,613 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 05:48:49,613 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 05:48:49,614 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 05:48:49,615 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 05:48:49,616 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 05:48:49,617 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 05:48:49,618 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 05:48:49,619 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 05:48:49,620 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 05:48:49,622 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 05:48:49,622 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 05:48:49,622 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 05:48:49,623 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 05:48:49,623 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 05:48:49,624 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 05:48:49,624 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 05:48:49,625 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 05:48:49,625 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 05:48:49,626 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 05:48:49,627 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 05:48:49,627 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 05:48:49,627 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 05:48:49,628 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 05:48:49,628 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 05:48:49,628 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 05:48:49,629 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 05:48:49,630 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd5acef-7c5a-4c36-9b09-3ba21063a1ca/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 05:48:49,645 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 05:48:49,645 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 05:48:49,646 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 05:48:49,646 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 05:48:49,646 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 05:48:49,646 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 05:48:49,647 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 05:48:49,647 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 05:48:49,647 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 05:48:49,647 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 05:48:49,647 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 05:48:49,647 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 05:48:49,647 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 05:48:49,648 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 05:48:49,648 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 05:48:49,648 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 05:48:49,648 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 05:48:49,648 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 05:48:49,649 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 05:48:49,649 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 05:48:49,649 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 05:48:49,650 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 05:48:49,650 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 05:48:49,650 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 05:48:49,650 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 05:48:49,650 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 05:48:49,650 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 05:48:49,650 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 05:48:49,651 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 05:48:49,651 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 05:48:49,651 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 05:48:49,651 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 05:48:49,651 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 05:48:49,652 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 05:48:49,652 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 05:48:49,652 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 05:48:49,652 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 05:48:49,652 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 05:48:49,652 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 05:48:49,652 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 05:48:49,653 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 05:48:49,653 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_acd5acef-7c5a-4c36-9b09-3ba21063a1ca/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd5acef-7c5a-4c36-9b09-3ba21063a1ca/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bd9be28702be20fbd75b67eebfdc5f85895ff340c238c235c391c2a8578e7b23 [2022-12-14 05:48:49,825 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 05:48:49,844 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 05:48:49,846 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 05:48:49,848 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 05:48:49,848 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 05:48:49,849 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd5acef-7c5a-4c36-9b09-3ba21063a1ca/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/loop-acceleration/diamond_1-1.c [2022-12-14 05:48:52,439 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 05:48:52,623 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 05:48:52,624 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd5acef-7c5a-4c36-9b09-3ba21063a1ca/sv-benchmarks/c/loop-acceleration/diamond_1-1.c [2022-12-14 05:48:52,628 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd5acef-7c5a-4c36-9b09-3ba21063a1ca/bin/utaipan-gh47qXpMRh/data/1333c5622/4760594787b04aa2805fd63eb8540959/FLAG09773e2fe [2022-12-14 05:48:52,638 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd5acef-7c5a-4c36-9b09-3ba21063a1ca/bin/utaipan-gh47qXpMRh/data/1333c5622/4760594787b04aa2805fd63eb8540959 [2022-12-14 05:48:52,640 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 05:48:52,641 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 05:48:52,642 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 05:48:52,642 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 05:48:52,646 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 05:48:52,646 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:48:52" (1/1) ... [2022-12-14 05:48:52,647 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@489aadea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:48:52, skipping insertion in model container [2022-12-14 05:48:52,647 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:48:52" (1/1) ... [2022-12-14 05:48:52,653 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 05:48:52,662 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 05:48:52,760 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_acd5acef-7c5a-4c36-9b09-3ba21063a1ca/sv-benchmarks/c/loop-acceleration/diamond_1-1.c[373,386] [2022-12-14 05:48:52,769 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 05:48:52,776 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 05:48:52,785 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_acd5acef-7c5a-4c36-9b09-3ba21063a1ca/sv-benchmarks/c/loop-acceleration/diamond_1-1.c[373,386] [2022-12-14 05:48:52,787 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 05:48:52,796 INFO L208 MainTranslator]: Completed translation [2022-12-14 05:48:52,797 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:48:52 WrapperNode [2022-12-14 05:48:52,797 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 05:48:52,797 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 05:48:52,798 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 05:48:52,798 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 05:48:52,803 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:48:52" (1/1) ... [2022-12-14 05:48:52,807 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:48:52" (1/1) ... [2022-12-14 05:48:52,819 INFO L138 Inliner]: procedures = 13, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 29 [2022-12-14 05:48:52,819 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 05:48:52,820 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 05:48:52,820 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 05:48:52,820 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 05:48:52,826 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:48:52" (1/1) ... [2022-12-14 05:48:52,826 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:48:52" (1/1) ... [2022-12-14 05:48:52,827 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:48:52" (1/1) ... [2022-12-14 05:48:52,827 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:48:52" (1/1) ... [2022-12-14 05:48:52,828 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:48:52" (1/1) ... [2022-12-14 05:48:52,831 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:48:52" (1/1) ... [2022-12-14 05:48:52,831 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:48:52" (1/1) ... [2022-12-14 05:48:52,832 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:48:52" (1/1) ... [2022-12-14 05:48:52,833 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 05:48:52,833 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 05:48:52,833 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 05:48:52,833 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 05:48:52,834 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:48:52" (1/1) ... [2022-12-14 05:48:52,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 05:48:52,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd5acef-7c5a-4c36-9b09-3ba21063a1ca/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:48:52,857 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd5acef-7c5a-4c36-9b09-3ba21063a1ca/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 05:48:52,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd5acef-7c5a-4c36-9b09-3ba21063a1ca/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 05:48:52,889 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 05:48:52,889 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 05:48:52,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 05:48:52,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 05:48:52,939 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 05:48:52,941 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 05:48:53,014 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 05:48:53,044 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 05:48:53,044 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 05:48:53,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:48:53 BoogieIcfgContainer [2022-12-14 05:48:53,046 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 05:48:53,049 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 05:48:53,049 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 05:48:53,052 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 05:48:53,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 05:48:52" (1/3) ... [2022-12-14 05:48:53,053 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@627820f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:48:53, skipping insertion in model container [2022-12-14 05:48:53,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:48:52" (2/3) ... [2022-12-14 05:48:53,053 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@627820f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:48:53, skipping insertion in model container [2022-12-14 05:48:53,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:48:53" (3/3) ... [2022-12-14 05:48:53,055 INFO L112 eAbstractionObserver]: Analyzing ICFG diamond_1-1.c [2022-12-14 05:48:53,073 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 05:48:53,073 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 05:48:53,120 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 05:48:53,126 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;@c0aba6a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 05:48:53,126 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 05:48:53,130 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:48:53,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 05:48:53,134 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:48:53,134 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 05:48:53,135 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:48:53,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:48:53,138 INFO L85 PathProgramCache]: Analyzing trace with hash 2066920, now seen corresponding path program 1 times [2022-12-14 05:48:53,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:48:53,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683818666] [2022-12-14 05:48:53,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:48:53,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:48:53,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:48:53,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:48:53,293 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:48:53,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683818666] [2022-12-14 05:48:53,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683818666] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:48:53,300 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:48:53,301 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 05:48:53,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288735094] [2022-12-14 05:48:53,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:48:53,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:48:53,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:48:53,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:48:53,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:48:53,335 INFO L87 Difference]: Start difference. First operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:48:53,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:48:53,357 INFO L93 Difference]: Finished difference Result 13 states and 15 transitions. [2022-12-14 05:48:53,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:48:53,359 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-12-14 05:48:53,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:48:53,365 INFO L225 Difference]: With dead ends: 13 [2022-12-14 05:48:53,365 INFO L226 Difference]: Without dead ends: 6 [2022-12-14 05:48:53,367 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:48:53,369 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 05:48:53,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 05:48:53,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2022-12-14 05:48:53,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2022-12-14 05:48:53,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:48:53,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2022-12-14 05:48:53,392 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 6 transitions. Word has length 4 [2022-12-14 05:48:53,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:48:53,392 INFO L495 AbstractCegarLoop]: Abstraction has 6 states and 6 transitions. [2022-12-14 05:48:53,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:48:53,392 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2022-12-14 05:48:53,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 05:48:53,392 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:48:53,393 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 05:48:53,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 05:48:53,393 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:48:53,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:48:53,394 INFO L85 PathProgramCache]: Analyzing trace with hash 64032200, now seen corresponding path program 1 times [2022-12-14 05:48:53,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:48:53,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061890925] [2022-12-14 05:48:53,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:48:53,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:48:53,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:48:53,537 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:48:53,537 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:48:53,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061890925] [2022-12-14 05:48:53,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061890925] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 05:48:53,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1257476869] [2022-12-14 05:48:53,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:48:53,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:48:53,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd5acef-7c5a-4c36-9b09-3ba21063a1ca/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:48:53,540 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd5acef-7c5a-4c36-9b09-3ba21063a1ca/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 05:48:53,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd5acef-7c5a-4c36-9b09-3ba21063a1ca/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 05:48:53,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:48:53,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 05:48:53,587 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:48:53,703 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:48:53,704 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 05:48:53,807 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:48:53,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1257476869] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 05:48:53,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1249730123] [2022-12-14 05:48:53,826 INFO L159 IcfgInterpreter]: Started Sifa with 5 locations of interest [2022-12-14 05:48:53,826 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 05:48:53,828 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 05:48:53,832 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 05:48:53,832 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 05:48:54,008 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 05:48:54,177 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '69#(and (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= (mod (mod |ULTIMATE.start_main_~y~0#1| 2) 4294967296) (mod (mod |ULTIMATE.start_main_~x~0#1| 2) 4294967296)) 1 0)) (<= 0 |ULTIMATE.start_main_~x~0#1|) (not (< (mod |ULTIMATE.start_main_~x~0#1| 4294967296) 99)) (<= |#NULL.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= 0 |#NULL.offset|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-12-14 05:48:54,177 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 05:48:54,178 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 05:48:54,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2022-12-14 05:48:54,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738623979] [2022-12-14 05:48:54,179 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 05:48:54,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 05:48:54,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:48:54,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 05:48:54,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-12-14 05:48:54,181 INFO L87 Difference]: Start difference. First operand 6 states and 6 transitions. Second operand has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:48:54,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:48:54,235 INFO L93 Difference]: Finished difference Result 12 states and 14 transitions. [2022-12-14 05:48:54,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 05:48:54,236 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-12-14 05:48:54,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:48:54,236 INFO L225 Difference]: With dead ends: 12 [2022-12-14 05:48:54,237 INFO L226 Difference]: Without dead ends: 9 [2022-12-14 05:48:54,237 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-12-14 05:48:54,238 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 05:48:54,239 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 05:48:54,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2022-12-14 05:48:54,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2022-12-14 05:48:54,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:48:54,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-12-14 05:48:54,242 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-12-14 05:48:54,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:48:54,243 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-12-14 05:48:54,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:48:54,243 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-12-14 05:48:54,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 05:48:54,243 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:48:54,243 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1] [2022-12-14 05:48:54,248 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd5acef-7c5a-4c36-9b09-3ba21063a1ca/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 05:48:54,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd5acef-7c5a-4c36-9b09-3ba21063a1ca/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:48:54,445 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:48:54,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:48:54,445 INFO L85 PathProgramCache]: Analyzing trace with hash 575767016, now seen corresponding path program 2 times [2022-12-14 05:48:54,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:48:54,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61136006] [2022-12-14 05:48:54,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:48:54,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:48:54,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:48:54,807 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:48:54,807 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:48:54,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61136006] [2022-12-14 05:48:54,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61136006] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 05:48:54,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1202883424] [2022-12-14 05:48:54,808 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 05:48:54,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:48:54,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd5acef-7c5a-4c36-9b09-3ba21063a1ca/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:48:54,809 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd5acef-7c5a-4c36-9b09-3ba21063a1ca/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 05:48:54,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd5acef-7c5a-4c36-9b09-3ba21063a1ca/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 05:48:54,850 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-12-14 05:48:54,850 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 05:48:54,851 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-14 05:48:54,852 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:48:55,082 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:48:55,083 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 05:48:55,432 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:48:55,432 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1202883424] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 05:48:55,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [76565348] [2022-12-14 05:48:55,433 INFO L159 IcfgInterpreter]: Started Sifa with 5 locations of interest [2022-12-14 05:48:55,434 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 05:48:55,434 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 05:48:55,434 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 05:48:55,434 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 05:48:55,504 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 05:48:55,727 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '160#(and (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= (mod (mod |ULTIMATE.start_main_~y~0#1| 2) 4294967296) (mod (mod |ULTIMATE.start_main_~x~0#1| 2) 4294967296)) 1 0)) (<= 0 |ULTIMATE.start_main_~x~0#1|) (not (< (mod |ULTIMATE.start_main_~x~0#1| 4294967296) 99)) (<= |#NULL.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= 0 |#NULL.offset|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-12-14 05:48:55,727 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 05:48:55,727 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 05:48:55,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2022-12-14 05:48:55,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837550112] [2022-12-14 05:48:55,728 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 05:48:55,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-14 05:48:55,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:48:55,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-14 05:48:55,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2022-12-14 05:48:55,729 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 13 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:48:56,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:48:56,600 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2022-12-14 05:48:56,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-14 05:48:56,600 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-12-14 05:48:56,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:48:56,601 INFO L225 Difference]: With dead ends: 18 [2022-12-14 05:48:56,601 INFO L226 Difference]: Without dead ends: 15 [2022-12-14 05:48:56,601 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 11 SyntacticMatches, 3 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=119, Invalid=261, Unknown=0, NotChecked=0, Total=380 [2022-12-14 05:48:56,602 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 05:48:56,602 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 05:48:56,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-12-14 05:48:56,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-12-14 05:48:56,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:48:56,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-12-14 05:48:56,606 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 8 [2022-12-14 05:48:56,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:48:56,606 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-12-14 05:48:56,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:48:56,607 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-12-14 05:48:56,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 05:48:56,607 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:48:56,607 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1] [2022-12-14 05:48:56,612 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd5acef-7c5a-4c36-9b09-3ba21063a1ca/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 05:48:56,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd5acef-7c5a-4c36-9b09-3ba21063a1ca/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:48:56,808 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:48:56,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:48:56,808 INFO L85 PathProgramCache]: Analyzing trace with hash -692324888, now seen corresponding path program 3 times [2022-12-14 05:48:56,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:48:56,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574522076] [2022-12-14 05:48:56,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:48:56,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:48:56,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:48:57,427 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:48:57,427 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:48:57,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574522076] [2022-12-14 05:48:57,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574522076] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 05:48:57,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1335119717] [2022-12-14 05:48:57,428 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-14 05:48:57,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:48:57,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd5acef-7c5a-4c36-9b09-3ba21063a1ca/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:48:57,429 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd5acef-7c5a-4c36-9b09-3ba21063a1ca/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 05:48:57,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd5acef-7c5a-4c36-9b09-3ba21063a1ca/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 05:48:57,473 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-14 05:48:57,473 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 05:48:57,474 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 13 conjunts are in the unsatisfiable core [2022-12-14 05:48:57,476 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:48:58,094 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:48:58,094 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 05:48:59,110 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:48:59,111 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1335119717] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 05:48:59,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [682930987] [2022-12-14 05:48:59,113 INFO L159 IcfgInterpreter]: Started Sifa with 5 locations of interest [2022-12-14 05:48:59,113 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 05:48:59,113 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 05:48:59,113 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 05:48:59,113 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 05:48:59,177 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 05:48:59,443 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '329#(and (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= (mod (mod |ULTIMATE.start_main_~y~0#1| 2) 4294967296) (mod (mod |ULTIMATE.start_main_~x~0#1| 2) 4294967296)) 1 0)) (<= 0 |ULTIMATE.start_main_~x~0#1|) (not (< (mod |ULTIMATE.start_main_~x~0#1| 4294967296) 99)) (<= |#NULL.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= 0 |#NULL.offset|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-12-14 05:48:59,443 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 05:48:59,443 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 05:48:59,444 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 24 [2022-12-14 05:48:59,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323967835] [2022-12-14 05:48:59,444 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 05:48:59,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-12-14 05:48:59,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:48:59,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-12-14 05:48:59,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=199, Invalid=557, Unknown=0, NotChecked=0, Total=756 [2022-12-14 05:48:59,446 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 25 states, 25 states have (on average 1.12) internal successors, (28), 24 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:49:28,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:49:28,463 INFO L93 Difference]: Finished difference Result 30 states and 41 transitions. [2022-12-14 05:49:28,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-12-14 05:49:28,463 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 1.12) internal successors, (28), 24 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-12-14 05:49:28,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:49:28,464 INFO L225 Difference]: With dead ends: 30 [2022-12-14 05:49:28,464 INFO L226 Difference]: Without dead ends: 27 [2022-12-14 05:49:28,464 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 17 SyntacticMatches, 9 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 30.2s TimeCoverageRelationStatistics Valid=449, Invalid=957, Unknown=0, NotChecked=0, Total=1406 [2022-12-14 05:49:28,465 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 05:49:28,465 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 05:49:28,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-12-14 05:49:28,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-12-14 05:49:28,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.0384615384615385) internal successors, (27), 26 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:49:28,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2022-12-14 05:49:28,471 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 14 [2022-12-14 05:49:28,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:49:28,471 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2022-12-14 05:49:28,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 1.12) internal successors, (28), 24 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:49:28,472 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2022-12-14 05:49:28,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-12-14 05:49:28,472 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:49:28,472 INFO L195 NwaCegarLoop]: trace histogram [22, 1, 1, 1, 1] [2022-12-14 05:49:28,476 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd5acef-7c5a-4c36-9b09-3ba21063a1ca/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-12-14 05:49:28,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd5acef-7c5a-4c36-9b09-3ba21063a1ca/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:49:28,673 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:49:28,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:49:28,674 INFO L85 PathProgramCache]: Analyzing trace with hash 719052264, now seen corresponding path program 4 times [2022-12-14 05:49:28,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:49:28,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026233652] [2022-12-14 05:49:28,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:49:28,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:49:28,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:49:30,340 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:49:30,341 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:49:30,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026233652] [2022-12-14 05:49:30,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026233652] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 05:49:30,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [110118249] [2022-12-14 05:49:30,341 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-12-14 05:49:30,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:49:30,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd5acef-7c5a-4c36-9b09-3ba21063a1ca/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:49:30,342 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd5acef-7c5a-4c36-9b09-3ba21063a1ca/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 05:49:30,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd5acef-7c5a-4c36-9b09-3ba21063a1ca/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 05:49:30,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:49:30,389 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 25 conjunts are in the unsatisfiable core [2022-12-14 05:49:30,390 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:49:31,863 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:49:31,863 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 05:49:35,591 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:49:35,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [110118249] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 05:49:35,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [352796359] [2022-12-14 05:49:35,593 INFO L159 IcfgInterpreter]: Started Sifa with 5 locations of interest [2022-12-14 05:49:35,593 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 05:49:35,593 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 05:49:35,593 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 05:49:35,593 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 05:49:35,640 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 05:49:36,096 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '654#(and (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= (mod (mod |ULTIMATE.start_main_~y~0#1| 2) 4294967296) (mod (mod |ULTIMATE.start_main_~x~0#1| 2) 4294967296)) 1 0)) (<= 0 |ULTIMATE.start_main_~x~0#1|) (not (< (mod |ULTIMATE.start_main_~x~0#1| 4294967296) 99)) (<= |#NULL.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= 0 |#NULL.offset|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-12-14 05:49:36,097 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 05:49:36,097 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 05:49:36,097 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 48 [2022-12-14 05:49:36,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586874933] [2022-12-14 05:49:36,097 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 05:49:36,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2022-12-14 05:49:36,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:49:36,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2022-12-14 05:49:36,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=679, Invalid=1973, Unknown=0, NotChecked=0, Total=2652 [2022-12-14 05:49:36,101 INFO L87 Difference]: Start difference. First operand 27 states and 27 transitions. Second operand has 49 states, 49 states have (on average 1.0612244897959184) internal successors, (52), 48 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:49:48,876 WARN L233 SmtUtils]: Spent 7.61s on a formula simplification. DAG size of input: 286 DAG size of output: 13 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 05:50:10,155 WARN L233 SmtUtils]: Spent 14.80s on a formula simplification. DAG size of input: 279 DAG size of output: 28 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 05:50:27,820 WARN L233 SmtUtils]: Spent 7.09s on a formula simplification. DAG size of input: 263 DAG size of output: 28 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 05:50:42,716 WARN L233 SmtUtils]: Spent 9.42s on a formula simplification. DAG size of input: 254 DAG size of output: 28 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 05:51:04,709 WARN L233 SmtUtils]: Spent 7.11s on a formula simplification. DAG size of input: 238 DAG size of output: 28 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 05:51:29,037 WARN L233 SmtUtils]: Spent 8.99s on a formula simplification. DAG size of input: 229 DAG size of output: 28 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 05:51:50,516 WARN L233 SmtUtils]: Spent 7.46s on a formula simplification. DAG size of input: 213 DAG size of output: 28 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 05:52:12,521 WARN L233 SmtUtils]: Spent 6.15s on a formula simplification. DAG size of input: 204 DAG size of output: 28 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 05:54:58,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:54:58,363 INFO L93 Difference]: Finished difference Result 54 states and 77 transitions. [2022-12-14 05:54:58,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-12-14 05:54:58,364 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 49 states have (on average 1.0612244897959184) internal successors, (52), 48 states have internal predecessors, (52), 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 26 [2022-12-14 05:54:58,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:54:58,364 INFO L225 Difference]: With dead ends: 54 [2022-12-14 05:54:58,364 INFO L226 Difference]: Without dead ends: 51 [2022-12-14 05:54:58,366 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 29 SyntacticMatches, 21 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 486 ImplicationChecksByTransitivity, 326.6s TimeCoverageRelationStatistics Valid=1744, Invalid=3644, Unknown=14, NotChecked=0, Total=5402 [2022-12-14 05:54:58,366 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 593 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-14 05:54:58,366 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 50 Invalid, 594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 593 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-14 05:54:58,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-12-14 05:54:58,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2022-12-14 05:54:58,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 50 states have (on average 1.02) internal successors, (51), 50 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:54:58,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 51 transitions. [2022-12-14 05:54:58,377 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 51 transitions. Word has length 26 [2022-12-14 05:54:58,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:54:58,377 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 51 transitions. [2022-12-14 05:54:58,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 1.0612244897959184) internal successors, (52), 48 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:54:58,378 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 51 transitions. [2022-12-14 05:54:58,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-12-14 05:54:58,378 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:54:58,378 INFO L195 NwaCegarLoop]: trace histogram [46, 1, 1, 1, 1] [2022-12-14 05:54:58,383 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd5acef-7c5a-4c36-9b09-3ba21063a1ca/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 05:54:58,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd5acef-7c5a-4c36-9b09-3ba21063a1ca/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:54:58,580 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:54:58,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:54:58,581 INFO L85 PathProgramCache]: Analyzing trace with hash 1934077416, now seen corresponding path program 5 times [2022-12-14 05:54:58,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:54:58,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258828246] [2022-12-14 05:54:58,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:54:58,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:54:58,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:55:04,036 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:55:04,036 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:55:04,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258828246] [2022-12-14 05:55:04,037 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258828246] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 05:55:04,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1352901822] [2022-12-14 05:55:04,037 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 05:55:04,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:55:04,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd5acef-7c5a-4c36-9b09-3ba21063a1ca/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:55:04,038 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd5acef-7c5a-4c36-9b09-3ba21063a1ca/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 05:55:04,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd5acef-7c5a-4c36-9b09-3ba21063a1ca/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 05:55:23,939 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 24 check-sat command(s) [2022-12-14 05:55:23,939 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 05:55:23,957 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 55 conjunts are in the unsatisfiable core [2022-12-14 05:55:23,961 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:55:28,304 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:55:28,304 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 05:56:04,585 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:56:04,585 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1352901822] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 05:56:04,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [606464241] [2022-12-14 05:56:04,587 INFO L159 IcfgInterpreter]: Started Sifa with 5 locations of interest [2022-12-14 05:56:04,587 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 05:56:04,587 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 05:56:04,587 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 05:56:04,587 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 05:56:04,635 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 05:56:05,896 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1292#(and (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= (mod (mod |ULTIMATE.start_main_~y~0#1| 2) 4294967296) (mod (mod |ULTIMATE.start_main_~x~0#1| 2) 4294967296)) 1 0)) (<= 0 |ULTIMATE.start_main_~x~0#1|) (not (< (mod |ULTIMATE.start_main_~x~0#1| 4294967296) 99)) (<= |#NULL.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= 0 |#NULL.offset|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-12-14 05:56:05,896 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 05:56:05,896 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 05:56:05,897 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 49] total 97 [2022-12-14 05:56:05,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342729033] [2022-12-14 05:56:05,897 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 05:56:05,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 98 states [2022-12-14 05:56:05,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:56:05,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 98 interpolants. [2022-12-14 05:56:05,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2432, Invalid=7667, Unknown=1, NotChecked=0, Total=10100 [2022-12-14 05:56:05,905 INFO L87 Difference]: Start difference. First operand 51 states and 51 transitions. Second operand has 98 states, 98 states have (on average 1.030612244897959) internal successors, (101), 97 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:56:09,744 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse21 (mod (mod |c_ULTIMATE.start_main_~y~0#1| 2) 4294967296)) (.cse26 (* (div |c_ULTIMATE.start_main_~x~0#1| 2) 2)) (.cse27 (+ |c_ULTIMATE.start_main_~x~0#1| 1))) (let ((.cse8 (< (+ (* 4294967296 (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 81)) 4294967296)) 4294967277) |c_ULTIMATE.start_main_~x~0#1|)) (.cse2 (< (+ (* (div (+ (- 69) |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 4294967296) 4294967265) |c_ULTIMATE.start_main_~x~0#1|)) (.cse0 (< (+ 4294967285 (* (div (+ (- 89) |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 4294967296)) |c_ULTIMATE.start_main_~x~0#1|)) (.cse6 (< (+ 4294967269 (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 73)) 4294967296) 4294967296)) |c_ULTIMATE.start_main_~x~0#1|)) (.cse12 (< (+ 4294967289 (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 93)) 4294967296) 4294967296)) |c_ULTIMATE.start_main_~x~0#1|)) (.cse3 (< (+ 4294967291 (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 95)) 4294967296) 4294967296)) |c_ULTIMATE.start_main_~x~0#1|)) (.cse13 (< (+ 4294967253 (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 57)) 4294967296) 4294967296)) |c_ULTIMATE.start_main_~x~0#1|)) (.cse7 (< (+ (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 85)) 4294967296) 4294967296) 4294967281) |c_ULTIMATE.start_main_~x~0#1|)) (.cse5 (< (+ (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 97)) 4294967296) 4294967296) 4294967293) |c_ULTIMATE.start_main_~x~0#1|)) (.cse9 (< (+ (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 59)) 4294967296) 4294967296) 4294967255) |c_ULTIMATE.start_main_~x~0#1|)) (.cse18 (< (+ (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 61)) 4294967296) 4294967296) 4294967257) |c_ULTIMATE.start_main_~x~0#1|)) (.cse14 (< (+ 4294967267 (* 4294967296 (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 71)) 4294967296))) |c_ULTIMATE.start_main_~x~0#1|)) (.cse15 (< (+ 4294967263 (* (div (+ (- 67) |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 4294967296)) |c_ULTIMATE.start_main_~x~0#1|)) (.cse24 (< (+ 4294967271 (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 75)) 4294967296) 4294967296)) |c_ULTIMATE.start_main_~x~0#1|)) (.cse16 (< (+ 4294967259 (* (div (+ (- 63) |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 4294967296)) |c_ULTIMATE.start_main_~x~0#1|)) (.cse23 (< (+ (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 91)) 4294967296) 4294967296) 4294967287) |c_ULTIMATE.start_main_~x~0#1|)) (.cse25 (< (+ 4294967261 (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 65)) 4294967296) 4294967296)) |c_ULTIMATE.start_main_~x~0#1|)) (.cse11 (< (+ 4294967251 (* (div (+ (- 55) |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 4294967296)) |c_ULTIMATE.start_main_~x~0#1|)) (.cse19 (< (+ 4294967279 (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 83)) 4294967296) 4294967296)) |c_ULTIMATE.start_main_~x~0#1|)) (.cse17 (< (+ 4294967275 (* (div (+ (- 79) |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 4294967296)) |c_ULTIMATE.start_main_~x~0#1|)) (.cse20 (< (+ 4294967283 (* (div (+ (- 87) |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 4294967296)) |c_ULTIMATE.start_main_~x~0#1|)) (.cse4 (< (+ .cse21 .cse26) .cse27)) (.cse22 (< (+ 4294967273 (* (div (+ (- 77) |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 4294967296)) |c_ULTIMATE.start_main_~x~0#1|)) (.cse10 (< (+ .cse21 (* 2 (div .cse27 2))) (+ |c_ULTIMATE.start_main_~x~0#1| 2))) (.cse1 (< |c_ULTIMATE.start_main_~x~0#1| (+ .cse21 (* (div (+ (- |c_ULTIMATE.start_main_~x~0#1|) (- 4294967295) .cse26) 4294967296) 4294967296) 4294967297 .cse26)))) (and (or .cse0 .cse1) (or .cse2 .cse1) (or .cse3 .cse4) (or .cse5 .cse1) (or .cse6 .cse4) (or .cse7 .cse1) (or .cse8 .cse1) (or .cse9 .cse1) (or .cse10 (< (+ 4294967286 (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 90)) 4294967296) 4294967296)) |c_ULTIMATE.start_main_~x~0#1|)) (or .cse10 (< (+ (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 60)) 4294967296) 4294967296) 4294967256) |c_ULTIMATE.start_main_~x~0#1|)) (or .cse11 .cse1) (or .cse10 (< (+ (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 84)) 4294967296) 4294967296) 4294967280) |c_ULTIMATE.start_main_~x~0#1|)) (or .cse12 .cse1) (or (< (+ 4294967282 (* (div (+ (- 86) |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 4294967296)) |c_ULTIMATE.start_main_~x~0#1|) .cse10) (or .cse8 .cse4) (or (< (+ 4294967276 (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 80)) 4294967296) 4294967296)) |c_ULTIMATE.start_main_~x~0#1|) .cse10) (or (< (+ (* (div (+ (- 53) |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 4294967296) 4294967249) |c_ULTIMATE.start_main_~x~0#1|) .cse1) (or (< (+ (* (div (+ (- 51) |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 4294967296) 4294967247) |c_ULTIMATE.start_main_~x~0#1|) .cse1) (or (< (+ (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 19)) 4294967296) 4294967296) 4294967215) |c_ULTIMATE.start_main_~x~0#1|) .cse1) (or (< (+ (* 4294967296 (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 39)) 4294967296)) 4294967235) |c_ULTIMATE.start_main_~x~0#1|) .cse1) (or .cse13 .cse1) (or (< (+ 4294967262 (* 4294967296 (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 66)) 4294967296))) |c_ULTIMATE.start_main_~x~0#1|) .cse10) (or .cse2 .cse4) (or .cse14 .cse4) (or .cse10 (< (+ 4294967272 (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 76)) 4294967296) 4294967296)) |c_ULTIMATE.start_main_~x~0#1|)) (or .cse0 .cse4) (or .cse1 .cse15) (or (< (+ 4294967231 (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 35)) 4294967296) 4294967296)) |c_ULTIMATE.start_main_~x~0#1|) .cse1) (or .cse6 .cse1) (or (< (+ (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 31)) 4294967296) 4294967296) 4294967227) |c_ULTIMATE.start_main_~x~0#1|) .cse1) (or (< (+ 4294967274 (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 78)) 4294967296) 4294967296)) |c_ULTIMATE.start_main_~x~0#1|) .cse10) (or .cse12 .cse4) (or .cse3 .cse1) (or (< (+ (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 49)) 4294967296) 4294967296) 4294967245) |c_ULTIMATE.start_main_~x~0#1|) .cse1) (or .cse16 .cse4) (or .cse13 .cse4) (or .cse7 .cse4) (or .cse1 (< (+ (* 4294967296 (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 25)) 4294967296)) 4294967221) |c_ULTIMATE.start_main_~x~0#1|)) (or .cse5 .cse4) (or .cse10 (< (+ 4294967260 (* (div (+ (- 64) |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 4294967296)) |c_ULTIMATE.start_main_~x~0#1|)) (or .cse10 (< (+ (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 82)) 4294967296) 4294967296) 4294967278) |c_ULTIMATE.start_main_~x~0#1|)) (or .cse17 .cse4) (or .cse9 .cse4) (or .cse10 (< (+ 4294967268 (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 72)) 4294967296) 4294967296)) |c_ULTIMATE.start_main_~x~0#1|)) (or .cse18 .cse4) (or .cse10 (< (+ 4294967266 (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 70)) 4294967296) 4294967296)) |c_ULTIMATE.start_main_~x~0#1|)) (or (< (+ (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 56)) 4294967296) 4294967296) 4294967252) |c_ULTIMATE.start_main_~x~0#1|) .cse10) (or .cse19 .cse4) (or (< (+ (* (div (+ (- 13) |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 4294967296) 4294967209) |c_ULTIMATE.start_main_~x~0#1|) .cse1) (or .cse20 .cse1) (or (< (+ 4294967241 (* (div (+ (- 45) |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 4294967296)) |c_ULTIMATE.start_main_~x~0#1|) .cse1) (or .cse18 .cse1) (or (< (mod |c_ULTIMATE.start_main_~x~0#1| 4294967296) 99) (= .cse21 (mod (mod |c_ULTIMATE.start_main_~x~0#1| 2) 4294967296))) (or (< (+ (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 37)) 4294967296) 4294967296) 4294967233) |c_ULTIMATE.start_main_~x~0#1|) .cse1) (or (< (+ (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 62)) 4294967296) 4294967296) 4294967258) |c_ULTIMATE.start_main_~x~0#1|) .cse10) (or .cse22 .cse4) (or .cse14 .cse1) (or .cse4 .cse15) (or (< (+ 4294967292 (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 96)) 4294967296) 4294967296)) |c_ULTIMATE.start_main_~x~0#1|) .cse10) (or (< (+ (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 33)) 4294967296) 4294967296) 4294967229) |c_ULTIMATE.start_main_~x~0#1|) .cse1) (or (< (+ (* (div (+ (- 88) |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 4294967296) 4294967284) |c_ULTIMATE.start_main_~x~0#1|) .cse10) (or (< (+ 4294967243 (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 47)) 4294967296) 4294967296)) |c_ULTIMATE.start_main_~x~0#1|) .cse1) (or (< (+ 4294967217 (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 21)) 4294967296) 4294967296)) |c_ULTIMATE.start_main_~x~0#1|) .cse1) (or (< (+ (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 15)) 4294967296) 4294967296) 4294967211) |c_ULTIMATE.start_main_~x~0#1|) .cse1) (or .cse23 .cse1) (or (< (+ (* (div (+ (- 9) |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 4294967296) 4294967205) |c_ULTIMATE.start_main_~x~0#1|) .cse1) (or .cse24 .cse4) (or .cse10 (< (+ (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 98)) 4294967296) 4294967296) 4294967294) |c_ULTIMATE.start_main_~x~0#1|)) (or .cse24 .cse1) (or .cse10 (< (+ (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 74)) 4294967296) 4294967296) 4294967270) |c_ULTIMATE.start_main_~x~0#1|)) (or .cse25 .cse1) (or .cse16 .cse1) (or .cse23 .cse4) (or .cse25 .cse4) (or .cse4 .cse11) (or (< (+ (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 27)) 4294967296) 4294967296) 4294967223) |c_ULTIMATE.start_main_~x~0#1|) .cse1) (or (< (+ 4294967254 (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 58)) 4294967296) 4294967296)) |c_ULTIMATE.start_main_~x~0#1|) .cse10) (or .cse10 (< (+ 4294967264 (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 68)) 4294967296) 4294967296)) |c_ULTIMATE.start_main_~x~0#1|)) (or (< (+ 4294967225 (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 29)) 4294967296) 4294967296)) |c_ULTIMATE.start_main_~x~0#1|) .cse1) (or (< (+ 4294967239 (* 4294967296 (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 43)) 4294967296))) |c_ULTIMATE.start_main_~x~0#1|) .cse1) (or .cse10 (< (+ 4294967288 (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 92)) 4294967296) 4294967296)) |c_ULTIMATE.start_main_~x~0#1|)) (or (< (+ (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 41)) 4294967296) 4294967296) 4294967237) |c_ULTIMATE.start_main_~x~0#1|) .cse1) (or .cse19 .cse1) (or .cse17 .cse1) (or .cse20 .cse4) (or .cse22 .cse1) (or .cse10 (< (+ 4294967250 (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 54)) 4294967296) 4294967296)) |c_ULTIMATE.start_main_~x~0#1|)) (or (< (+ 4294967213 (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 17)) 4294967296) 4294967296)) |c_ULTIMATE.start_main_~x~0#1|) .cse1) (or (< (+ (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 23)) 4294967296) 4294967296) 4294967219) |c_ULTIMATE.start_main_~x~0#1|) .cse1) (or .cse10 (< (+ 4294967290 (* 4294967296 (div (+ (- 94) |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) |c_ULTIMATE.start_main_~x~0#1|)) (or (< (+ (* (div (+ (- 11) |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 4294967296) 4294967207) |c_ULTIMATE.start_main_~x~0#1|) .cse1)))) is different from false [2022-12-14 05:59:07,642 WARN L233 SmtUtils]: Spent 1.92m on a formula simplification. DAG size of input: 584 DAG size of output: 66 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:02:13,504 WARN L233 SmtUtils]: Spent 1.92m on a formula simplification. DAG size of input: 575 DAG size of output: 66 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:02:16,550 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse21 (mod (mod |c_ULTIMATE.start_main_~y~0#1| 2) 4294967296)) (.cse26 (* (div |c_ULTIMATE.start_main_~x~0#1| 2) 2)) (.cse27 (+ |c_ULTIMATE.start_main_~x~0#1| 1))) (let ((.cse8 (< (+ (* 4294967296 (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 81)) 4294967296)) 4294967277) |c_ULTIMATE.start_main_~x~0#1|)) (.cse2 (< (+ (* (div (+ (- 69) |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 4294967296) 4294967265) |c_ULTIMATE.start_main_~x~0#1|)) (.cse0 (< (+ 4294967285 (* (div (+ (- 89) |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 4294967296)) |c_ULTIMATE.start_main_~x~0#1|)) (.cse6 (< (+ 4294967269 (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 73)) 4294967296) 4294967296)) |c_ULTIMATE.start_main_~x~0#1|)) (.cse12 (< (+ 4294967289 (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 93)) 4294967296) 4294967296)) |c_ULTIMATE.start_main_~x~0#1|)) (.cse3 (< (+ 4294967291 (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 95)) 4294967296) 4294967296)) |c_ULTIMATE.start_main_~x~0#1|)) (.cse13 (< (+ 4294967253 (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 57)) 4294967296) 4294967296)) |c_ULTIMATE.start_main_~x~0#1|)) (.cse7 (< (+ (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 85)) 4294967296) 4294967296) 4294967281) |c_ULTIMATE.start_main_~x~0#1|)) (.cse5 (< (+ (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 97)) 4294967296) 4294967296) 4294967293) |c_ULTIMATE.start_main_~x~0#1|)) (.cse9 (< (+ (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 59)) 4294967296) 4294967296) 4294967255) |c_ULTIMATE.start_main_~x~0#1|)) (.cse18 (< (+ (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 61)) 4294967296) 4294967296) 4294967257) |c_ULTIMATE.start_main_~x~0#1|)) (.cse14 (< (+ 4294967267 (* 4294967296 (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 71)) 4294967296))) |c_ULTIMATE.start_main_~x~0#1|)) (.cse15 (< (+ 4294967263 (* (div (+ (- 67) |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 4294967296)) |c_ULTIMATE.start_main_~x~0#1|)) (.cse24 (< (+ 4294967271 (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 75)) 4294967296) 4294967296)) |c_ULTIMATE.start_main_~x~0#1|)) (.cse16 (< (+ 4294967259 (* (div (+ (- 63) |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 4294967296)) |c_ULTIMATE.start_main_~x~0#1|)) (.cse23 (< (+ (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 91)) 4294967296) 4294967296) 4294967287) |c_ULTIMATE.start_main_~x~0#1|)) (.cse25 (< (+ 4294967261 (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 65)) 4294967296) 4294967296)) |c_ULTIMATE.start_main_~x~0#1|)) (.cse11 (< (+ 4294967251 (* (div (+ (- 55) |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 4294967296)) |c_ULTIMATE.start_main_~x~0#1|)) (.cse19 (< (+ 4294967279 (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 83)) 4294967296) 4294967296)) |c_ULTIMATE.start_main_~x~0#1|)) (.cse17 (< (+ 4294967275 (* (div (+ (- 79) |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 4294967296)) |c_ULTIMATE.start_main_~x~0#1|)) (.cse20 (< (+ 4294967283 (* (div (+ (- 87) |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 4294967296)) |c_ULTIMATE.start_main_~x~0#1|)) (.cse4 (< (+ .cse21 .cse26) .cse27)) (.cse22 (< (+ 4294967273 (* (div (+ (- 77) |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 4294967296)) |c_ULTIMATE.start_main_~x~0#1|)) (.cse10 (< (+ .cse21 (* 2 (div .cse27 2))) (+ |c_ULTIMATE.start_main_~x~0#1| 2))) (.cse1 (< |c_ULTIMATE.start_main_~x~0#1| (+ .cse21 (* (div (+ (- |c_ULTIMATE.start_main_~x~0#1|) (- 4294967295) .cse26) 4294967296) 4294967296) 4294967297 .cse26)))) (and (or .cse0 .cse1) (or .cse2 .cse1) (or .cse3 .cse4) (or .cse5 .cse1) (or .cse6 .cse4) (or .cse7 .cse1) (or .cse8 .cse1) (or .cse9 .cse1) (or .cse10 (< (+ 4294967286 (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 90)) 4294967296) 4294967296)) |c_ULTIMATE.start_main_~x~0#1|)) (or .cse10 (< (+ (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 60)) 4294967296) 4294967296) 4294967256) |c_ULTIMATE.start_main_~x~0#1|)) (or .cse11 .cse1) (or .cse10 (< (+ (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 84)) 4294967296) 4294967296) 4294967280) |c_ULTIMATE.start_main_~x~0#1|)) (or .cse12 .cse1) (or (< (+ 4294967282 (* (div (+ (- 86) |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 4294967296)) |c_ULTIMATE.start_main_~x~0#1|) .cse10) (or .cse8 .cse4) (or (< (+ 4294967276 (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 80)) 4294967296) 4294967296)) |c_ULTIMATE.start_main_~x~0#1|) .cse10) (or (< (+ (* (div (+ (- 53) |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 4294967296) 4294967249) |c_ULTIMATE.start_main_~x~0#1|) .cse1) (or (< (+ (* (div (+ (- 51) |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 4294967296) 4294967247) |c_ULTIMATE.start_main_~x~0#1|) .cse1) (or (< (+ (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 19)) 4294967296) 4294967296) 4294967215) |c_ULTIMATE.start_main_~x~0#1|) .cse1) (or (< (+ (* 4294967296 (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 39)) 4294967296)) 4294967235) |c_ULTIMATE.start_main_~x~0#1|) .cse1) (or .cse13 .cse1) (or (< (+ 4294967262 (* 4294967296 (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 66)) 4294967296))) |c_ULTIMATE.start_main_~x~0#1|) .cse10) (or .cse2 .cse4) (or .cse14 .cse4) (or .cse10 (< (+ 4294967272 (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 76)) 4294967296) 4294967296)) |c_ULTIMATE.start_main_~x~0#1|)) (or .cse0 .cse4) (or .cse1 .cse15) (or (< (+ 4294967231 (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 35)) 4294967296) 4294967296)) |c_ULTIMATE.start_main_~x~0#1|) .cse1) (or .cse6 .cse1) (or (< (+ (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 31)) 4294967296) 4294967296) 4294967227) |c_ULTIMATE.start_main_~x~0#1|) .cse1) (or (< (+ 4294967274 (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 78)) 4294967296) 4294967296)) |c_ULTIMATE.start_main_~x~0#1|) .cse10) (or .cse12 .cse4) (or .cse3 .cse1) (or (< (+ (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 49)) 4294967296) 4294967296) 4294967245) |c_ULTIMATE.start_main_~x~0#1|) .cse1) (or .cse16 .cse4) (or .cse13 .cse4) (or .cse7 .cse4) (or .cse1 (< (+ (* 4294967296 (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 25)) 4294967296)) 4294967221) |c_ULTIMATE.start_main_~x~0#1|)) (or .cse5 .cse4) (or .cse10 (< (+ 4294967260 (* (div (+ (- 64) |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 4294967296)) |c_ULTIMATE.start_main_~x~0#1|)) (or .cse10 (< (+ (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 82)) 4294967296) 4294967296) 4294967278) |c_ULTIMATE.start_main_~x~0#1|)) (or .cse17 .cse4) (or .cse9 .cse4) (or .cse10 (< (+ 4294967268 (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 72)) 4294967296) 4294967296)) |c_ULTIMATE.start_main_~x~0#1|)) (or .cse18 .cse4) (or .cse10 (< (+ 4294967266 (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 70)) 4294967296) 4294967296)) |c_ULTIMATE.start_main_~x~0#1|)) (or (< (+ (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 56)) 4294967296) 4294967296) 4294967252) |c_ULTIMATE.start_main_~x~0#1|) .cse10) (or .cse19 .cse4) (or (< (+ (* (div (+ (- 13) |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 4294967296) 4294967209) |c_ULTIMATE.start_main_~x~0#1|) .cse1) (or .cse20 .cse1) (or (< (+ 4294967241 (* (div (+ (- 45) |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 4294967296)) |c_ULTIMATE.start_main_~x~0#1|) .cse1) (or .cse18 .cse1) (or (< (mod |c_ULTIMATE.start_main_~x~0#1| 4294967296) 99) (= .cse21 (mod (mod |c_ULTIMATE.start_main_~x~0#1| 2) 4294967296))) (or (< (+ (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 37)) 4294967296) 4294967296) 4294967233) |c_ULTIMATE.start_main_~x~0#1|) .cse1) (not (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| 0)) (or (< (+ (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 62)) 4294967296) 4294967296) 4294967258) |c_ULTIMATE.start_main_~x~0#1|) .cse10) (or .cse22 .cse4) (or .cse14 .cse1) (or .cse4 .cse15) (or (< (+ 4294967292 (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 96)) 4294967296) 4294967296)) |c_ULTIMATE.start_main_~x~0#1|) .cse10) (or (< (+ (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 33)) 4294967296) 4294967296) 4294967229) |c_ULTIMATE.start_main_~x~0#1|) .cse1) (or (< (+ (* (div (+ (- 88) |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 4294967296) 4294967284) |c_ULTIMATE.start_main_~x~0#1|) .cse10) (or (< (+ 4294967243 (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 47)) 4294967296) 4294967296)) |c_ULTIMATE.start_main_~x~0#1|) .cse1) (or (< (+ 4294967217 (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 21)) 4294967296) 4294967296)) |c_ULTIMATE.start_main_~x~0#1|) .cse1) (or (< (+ (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 15)) 4294967296) 4294967296) 4294967211) |c_ULTIMATE.start_main_~x~0#1|) .cse1) (or .cse23 .cse1) (or (< (+ (* (div (+ (- 9) |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 4294967296) 4294967205) |c_ULTIMATE.start_main_~x~0#1|) .cse1) (or .cse24 .cse4) (or .cse10 (< (+ (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 98)) 4294967296) 4294967296) 4294967294) |c_ULTIMATE.start_main_~x~0#1|)) (or .cse24 .cse1) (or .cse10 (< (+ (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 74)) 4294967296) 4294967296) 4294967270) |c_ULTIMATE.start_main_~x~0#1|)) (or .cse25 .cse1) (or .cse16 .cse1) (or .cse23 .cse4) (or .cse25 .cse4) (or .cse4 .cse11) (or (< (+ (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 27)) 4294967296) 4294967296) 4294967223) |c_ULTIMATE.start_main_~x~0#1|) .cse1) (or (< (+ 4294967254 (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 58)) 4294967296) 4294967296)) |c_ULTIMATE.start_main_~x~0#1|) .cse10) (or .cse10 (< (+ 4294967264 (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 68)) 4294967296) 4294967296)) |c_ULTIMATE.start_main_~x~0#1|)) (or (< (+ 4294967225 (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 29)) 4294967296) 4294967296)) |c_ULTIMATE.start_main_~x~0#1|) .cse1) (or (< (+ 4294967239 (* 4294967296 (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 43)) 4294967296))) |c_ULTIMATE.start_main_~x~0#1|) .cse1) (or .cse10 (< (+ 4294967288 (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 92)) 4294967296) 4294967296)) |c_ULTIMATE.start_main_~x~0#1|)) (or (< (+ (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 41)) 4294967296) 4294967296) 4294967237) |c_ULTIMATE.start_main_~x~0#1|) .cse1) (or .cse19 .cse1) (or .cse17 .cse1) (or .cse20 .cse4) (or .cse22 .cse1) (or .cse10 (< (+ 4294967250 (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 54)) 4294967296) 4294967296)) |c_ULTIMATE.start_main_~x~0#1|)) (or (< (+ 4294967213 (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 17)) 4294967296) 4294967296)) |c_ULTIMATE.start_main_~x~0#1|) .cse1) (or (< (+ (* (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 23)) 4294967296) 4294967296) 4294967219) |c_ULTIMATE.start_main_~x~0#1|) .cse1) (or .cse10 (< (+ 4294967290 (* 4294967296 (div (+ (- 94) |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) |c_ULTIMATE.start_main_~x~0#1|)) (or (< (+ (* (div (+ (- 11) |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 4294967296) 4294967207) |c_ULTIMATE.start_main_~x~0#1|) .cse1)))) is different from false