./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test1-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a 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_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test1-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 470d7065e9fd450e98d72326ef313763cf0710ea45f0a443b018e8a49bdf7927 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 22:35:35,622 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 22:35:35,624 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 22:35:35,669 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 22:35:35,669 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 22:35:35,670 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 22:35:35,672 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 22:35:35,673 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 22:35:35,675 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 22:35:35,676 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 22:35:35,677 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 22:35:35,678 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 22:35:35,679 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 22:35:35,693 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 22:35:35,695 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 22:35:35,696 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 22:35:35,697 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 22:35:35,698 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 22:35:35,699 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 22:35:35,701 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 22:35:35,706 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 22:35:35,710 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 22:35:35,713 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 22:35:35,714 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 22:35:35,730 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 22:35:35,730 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 22:35:35,730 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 22:35:35,731 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 22:35:35,732 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 22:35:35,733 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 22:35:35,733 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 22:35:35,734 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 22:35:35,735 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 22:35:35,736 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 22:35:35,737 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 22:35:35,737 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 22:35:35,738 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 22:35:35,738 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 22:35:35,739 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 22:35:35,743 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 22:35:35,745 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 22:35:35,746 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-25 22:35:35,794 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 22:35:35,794 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 22:35:35,795 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 22:35:35,795 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 22:35:35,796 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 22:35:35,797 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 22:35:35,797 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 22:35:35,797 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 22:35:35,797 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 22:35:35,797 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 22:35:35,798 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 22:35:35,799 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 22:35:35,799 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 22:35:35,799 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 22:35:35,799 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 22:35:35,800 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 22:35:35,800 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 22:35:35,800 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 22:35:35,801 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 22:35:35,801 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 22:35:35,801 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 22:35:35,801 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 22:35:35,802 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 22:35:35,802 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 22:35:35,802 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 22:35:35,802 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 22:35:35,803 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 22:35:35,803 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 22:35:35,803 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 22:35:35,804 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 22:35:35,804 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 22:35:35,804 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 22:35:35,804 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 22:35:35,805 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 22:35:35,805 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:35:35,805 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 22:35:35,805 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 22:35:35,806 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 22:35:35,806 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 22:35:35,806 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 22:35:35,806 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 22:35:35,806 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 22:35:35,807 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 22:35:35,807 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_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 470d7065e9fd450e98d72326ef313763cf0710ea45f0a443b018e8a49bdf7927 [2022-11-25 22:35:36,130 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 22:35:36,164 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 22:35:36,166 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 22:35:36,167 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 22:35:36,168 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 22:35:36,169 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test1-1.i [2022-11-25 22:35:39,289 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 22:35:39,661 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 22:35:39,662 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test1-1.i [2022-11-25 22:35:39,686 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/data/0c9eb3ece/70277b4c202e45aeb371fb0928b81263/FLAG9b75ae0b7 [2022-11-25 22:35:39,905 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/data/0c9eb3ece/70277b4c202e45aeb371fb0928b81263 [2022-11-25 22:35:39,907 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 22:35:39,910 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 22:35:39,911 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 22:35:39,912 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 22:35:39,916 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 22:35:39,917 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:35:39" (1/1) ... [2022-11-25 22:35:39,918 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2285156d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:35:39, skipping insertion in model container [2022-11-25 22:35:39,919 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:35:39" (1/1) ... [2022-11-25 22:35:39,927 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 22:35:39,996 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 22:35:40,438 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_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test1-1.i[33021,33034] [2022-11-25 22:35:40,587 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:35:40,600 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 22:35:40,635 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_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test1-1.i[33021,33034] [2022-11-25 22:35:40,701 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:35:40,737 INFO L208 MainTranslator]: Completed translation [2022-11-25 22:35:40,738 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:35:40 WrapperNode [2022-11-25 22:35:40,738 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 22:35:40,739 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 22:35:40,739 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 22:35:40,739 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 22:35:40,747 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:35:40" (1/1) ... [2022-11-25 22:35:40,772 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:35:40" (1/1) ... [2022-11-25 22:35:40,835 INFO L138 Inliner]: procedures = 177, calls = 186, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 623 [2022-11-25 22:35:40,835 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 22:35:40,836 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 22:35:40,836 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 22:35:40,837 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 22:35:40,847 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:35:40" (1/1) ... [2022-11-25 22:35:40,848 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:35:40" (1/1) ... [2022-11-25 22:35:40,858 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:35:40" (1/1) ... [2022-11-25 22:35:40,858 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:35:40" (1/1) ... [2022-11-25 22:35:40,904 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:35:40" (1/1) ... [2022-11-25 22:35:40,913 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:35:40" (1/1) ... [2022-11-25 22:35:40,916 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:35:40" (1/1) ... [2022-11-25 22:35:40,920 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:35:40" (1/1) ... [2022-11-25 22:35:40,926 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 22:35:40,927 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 22:35:40,927 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 22:35:40,927 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 22:35:40,928 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:35:40" (1/1) ... [2022-11-25 22:35:40,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:35:40,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:35:40,973 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 22:35:41,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 22:35:41,037 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 22:35:41,038 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-25 22:35:41,038 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-25 22:35:41,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 22:35:41,038 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-25 22:35:41,038 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-25 22:35:41,039 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 22:35:41,039 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 22:35:41,039 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 22:35:41,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 22:35:41,039 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 22:35:41,040 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 22:35:41,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 22:35:41,041 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 22:35:41,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 22:35:41,275 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 22:35:41,278 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 22:35:42,460 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 22:35:42,714 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 22:35:42,715 INFO L300 CfgBuilder]: Removed 31 assume(true) statements. [2022-11-25 22:35:42,718 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:35:42 BoogieIcfgContainer [2022-11-25 22:35:42,718 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 22:35:42,721 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 22:35:42,721 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 22:35:42,725 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 22:35:42,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 10:35:39" (1/3) ... [2022-11-25 22:35:42,728 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@575fff61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:35:42, skipping insertion in model container [2022-11-25 22:35:42,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:35:40" (2/3) ... [2022-11-25 22:35:42,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@575fff61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:35:42, skipping insertion in model container [2022-11-25 22:35:42,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:35:42" (3/3) ... [2022-11-25 22:35:42,732 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test1-1.i [2022-11-25 22:35:42,753 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 22:35:42,755 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-25 22:35:42,828 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 22:35:42,836 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;@2261c122, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 22:35:42,837 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-25 22:35:42,842 INFO L276 IsEmpty]: Start isEmpty. Operand has 89 states, 67 states have (on average 1.8059701492537314) internal successors, (121), 83 states have internal predecessors, (121), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-25 22:35:42,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-25 22:35:42,849 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:35:42,850 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-25 22:35:42,851 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 22:35:42,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:35:42,860 INFO L85 PathProgramCache]: Analyzing trace with hash 531335, now seen corresponding path program 1 times [2022-11-25 22:35:42,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:35:42,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87246894] [2022-11-25 22:35:42,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:35:42,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:35:43,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:35:43,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:35:43,083 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:35:43,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87246894] [2022-11-25 22:35:43,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87246894] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:35:43,085 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:35:43,086 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 22:35:43,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157854166] [2022-11-25 22:35:43,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:35:43,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 22:35:43,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:35:43,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 22:35:43,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 22:35:43,150 INFO L87 Difference]: Start difference. First operand has 89 states, 67 states have (on average 1.8059701492537314) internal successors, (121), 83 states have internal predecessors, (121), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:35:43,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:35:43,646 INFO L93 Difference]: Finished difference Result 176 states and 293 transitions. [2022-11-25 22:35:43,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 22:35:43,653 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 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 3 [2022-11-25 22:35:43,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:35:43,672 INFO L225 Difference]: With dead ends: 176 [2022-11-25 22:35:43,672 INFO L226 Difference]: Without dead ends: 87 [2022-11-25 22:35:43,676 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 22:35:43,680 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-25 22:35:43,681 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 104 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-25 22:35:43,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2022-11-25 22:35:43,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2022-11-25 22:35:43,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 67 states have (on average 1.328358208955224) internal successors, (89), 81 states have internal predecessors, (89), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-25 22:35:43,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 115 transitions. [2022-11-25 22:35:43,732 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 115 transitions. Word has length 3 [2022-11-25 22:35:43,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:35:43,733 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 115 transitions. [2022-11-25 22:35:43,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:35:43,734 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 115 transitions. [2022-11-25 22:35:43,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-25 22:35:43,734 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:35:43,735 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-25 22:35:43,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 22:35:43,735 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 22:35:43,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:35:43,736 INFO L85 PathProgramCache]: Analyzing trace with hash 16527266, now seen corresponding path program 1 times [2022-11-25 22:35:43,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:35:43,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634750747] [2022-11-25 22:35:43,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:35:43,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:35:43,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:35:43,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:35:43,827 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:35:43,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634750747] [2022-11-25 22:35:43,828 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634750747] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:35:43,829 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:35:43,829 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 22:35:43,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810313514] [2022-11-25 22:35:43,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:35:43,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:35:43,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:35:43,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:35:43,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:35:43,835 INFO L87 Difference]: Start difference. First operand 87 states and 115 transitions. Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:35:45,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:35:45,984 INFO L93 Difference]: Finished difference Result 170 states and 226 transitions. [2022-11-25 22:35:45,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:35:45,991 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-11-25 22:35:45,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:35:45,993 INFO L225 Difference]: With dead ends: 170 [2022-11-25 22:35:45,995 INFO L226 Difference]: Without dead ends: 141 [2022-11-25 22:35:45,996 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:35:45,997 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 55 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:35:45,998 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 212 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-25 22:35:45,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2022-11-25 22:35:46,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 90. [2022-11-25 22:35:46,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 70 states have (on average 1.3142857142857143) internal successors, (92), 84 states have internal predecessors, (92), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-25 22:35:46,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 118 transitions. [2022-11-25 22:35:46,017 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 118 transitions. Word has length 4 [2022-11-25 22:35:46,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:35:46,017 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 118 transitions. [2022-11-25 22:35:46,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:35:46,018 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 118 transitions. [2022-11-25 22:35:46,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-25 22:35:46,019 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:35:46,019 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:35:46,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 22:35:46,020 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 22:35:46,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:35:46,020 INFO L85 PathProgramCache]: Analyzing trace with hash 372678044, now seen corresponding path program 1 times [2022-11-25 22:35:46,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:35:46,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100949915] [2022-11-25 22:35:46,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:35:46,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:35:46,195 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:35:46,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2040030052] [2022-11-25 22:35:46,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:35:46,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:35:46,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:35:46,203 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:35:46,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 22:35:47,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:35:47,058 INFO L263 TraceCheckSpWp]: Trace formula consists of 1548 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 22:35:47,065 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:35:47,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:35:47,214 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:35:47,214 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:35:47,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100949915] [2022-11-25 22:35:47,214 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:35:47,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2040030052] [2022-11-25 22:35:47,218 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2040030052] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:35:47,218 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:35:47,218 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 22:35:47,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429344983] [2022-11-25 22:35:47,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:35:47,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:35:47,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:35:47,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:35:47,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:35:47,221 INFO L87 Difference]: Start difference. First operand 90 states and 118 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:35:48,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:35:48,575 INFO L93 Difference]: Finished difference Result 90 states and 118 transitions. [2022-11-25 22:35:48,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:35:48,581 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 3 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) Word has length 27 [2022-11-25 22:35:48,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:35:48,583 INFO L225 Difference]: With dead ends: 90 [2022-11-25 22:35:48,583 INFO L226 Difference]: Without dead ends: 89 [2022-11-25 22:35:48,584 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:35:48,585 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 60 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-25 22:35:48,585 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 207 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-25 22:35:48,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2022-11-25 22:35:48,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2022-11-25 22:35:48,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 70 states have (on average 1.3) internal successors, (91), 83 states have internal predecessors, (91), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-25 22:35:48,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 117 transitions. [2022-11-25 22:35:48,613 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 117 transitions. Word has length 27 [2022-11-25 22:35:48,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:35:48,614 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 117 transitions. [2022-11-25 22:35:48,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:35:48,617 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 117 transitions. [2022-11-25 22:35:48,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-25 22:35:48,618 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:35:48,618 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:35:48,631 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 22:35:48,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:35:48,832 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 22:35:48,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:35:48,833 INFO L85 PathProgramCache]: Analyzing trace with hash -1331882116, now seen corresponding path program 1 times [2022-11-25 22:35:48,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:35:48,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474701325] [2022-11-25 22:35:48,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:35:48,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:35:49,009 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:35:49,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [933237964] [2022-11-25 22:35:49,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:35:49,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:35:49,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:35:49,017 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:35:49,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 22:35:49,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:35:49,913 INFO L263 TraceCheckSpWp]: Trace formula consists of 1549 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 22:35:49,917 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:35:50,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:35:50,012 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:35:50,013 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:35:50,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474701325] [2022-11-25 22:35:50,014 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:35:50,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [933237964] [2022-11-25 22:35:50,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [933237964] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:35:50,017 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:35:50,018 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 22:35:50,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385119329] [2022-11-25 22:35:50,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:35:50,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:35:50,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:35:50,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:35:50,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:35:50,020 INFO L87 Difference]: Start difference. First operand 89 states and 117 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 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) [2022-11-25 22:35:54,335 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 22:35:54,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:35:54,336 INFO L93 Difference]: Finished difference Result 139 states and 175 transitions. [2022-11-25 22:35:54,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:35:54,345 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 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 28 [2022-11-25 22:35:54,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:35:54,347 INFO L225 Difference]: With dead ends: 139 [2022-11-25 22:35:54,347 INFO L226 Difference]: Without dead ends: 138 [2022-11-25 22:35:54,347 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:35:54,348 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 29 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-11-25 22:35:54,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 317 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-11-25 22:35:54,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2022-11-25 22:35:54,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2022-11-25 22:35:54,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 116 states have (on average 1.2241379310344827) internal successors, (142), 129 states have internal predecessors, (142), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-25 22:35:54,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 174 transitions. [2022-11-25 22:35:54,380 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 174 transitions. Word has length 28 [2022-11-25 22:35:54,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:35:54,380 INFO L495 AbstractCegarLoop]: Abstraction has 138 states and 174 transitions. [2022-11-25 22:35:54,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 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) [2022-11-25 22:35:54,381 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 174 transitions. [2022-11-25 22:35:54,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-25 22:35:54,382 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:35:54,382 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:35:54,414 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 22:35:54,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:35:54,604 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 22:35:54,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:35:54,606 INFO L85 PathProgramCache]: Analyzing trace with hash -1191648227, now seen corresponding path program 1 times [2022-11-25 22:35:54,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:35:54,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772168734] [2022-11-25 22:35:54,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:35:54,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:35:54,762 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:35:54,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1374662440] [2022-11-25 22:35:54,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:35:54,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:35:54,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:35:54,764 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:35:54,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 22:35:55,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:35:55,703 INFO L263 TraceCheckSpWp]: Trace formula consists of 1572 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 22:35:55,706 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:35:55,798 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:35:55,798 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:35:55,894 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:35:55,895 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:35:55,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772168734] [2022-11-25 22:35:55,895 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:35:55,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1374662440] [2022-11-25 22:35:55,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1374662440] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:35:55,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [478177044] [2022-11-25 22:35:55,919 INFO L159 IcfgInterpreter]: Started Sifa with 31 locations of interest [2022-11-25 22:35:55,919 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 22:35:55,923 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 22:35:55,930 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 22:35:55,931 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 22:35:56,064 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-25 22:35:56,065 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 30 [2022-11-25 22:35:56,094 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-25 22:35:56,095 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 32 [2022-11-25 22:35:56,106 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-25 22:35:56,157 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-25 22:35:56,157 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-25 22:35:56,173 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-25 22:35:56,217 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-25 22:35:56,228 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-25 22:35:56,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:35:56,247 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2022-11-25 22:35:56,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:35:56,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:35:56,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:35:56,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:35:56,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:35:56,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:35:56,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:35:56,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:35:56,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:35:56,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:35:56,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:35:56,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:35:56,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:35:56,886 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-25 22:35:56,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:35:56,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:35:56,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:35:56,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:35:56,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:35:56,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:35:56,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:35:56,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:35:56,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:35:56,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:35:56,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:35:56,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:35:56,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:35:56,952 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9896988 treesize of output 5376290 [2022-11-25 22:35:57,010 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-25 22:35:57,038 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-25 22:35:57,074 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-25 22:35:57,118 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-25 22:35:57,119 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 30 [2022-11-25 22:35:57,175 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-25 22:35:57,175 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-25 22:35:57,202 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-25 22:35:57,213 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-25 22:35:57,249 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-25 22:35:57,259 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-25 22:35:57,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:35:57,275 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2022-11-25 22:35:57,749 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-25 22:35:57,773 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-25 22:35:57,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:35:57,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:35:57,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:35:57,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:35:57,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:35:57,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:35:57,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:35:57,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:35:57,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:35:57,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:35:57,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:35:57,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:35:57,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:35:57,836 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-25 22:35:57,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:35:57,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:35:57,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:35:57,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:35:57,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:35:57,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:35:57,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:35:57,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:35:57,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:35:57,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:35:57,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:35:57,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:35:57,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:35:57,896 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9896988 treesize of output 5376290 [2022-11-25 22:35:57,947 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 22:36:06,329 WARN L233 SmtUtils]: Spent 5.14s on a formula simplification. DAG size of input: 224 DAG size of output: 208 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 22:36:14,085 WARN L233 SmtUtils]: Spent 5.59s on a formula simplification. DAG size of input: 240 DAG size of output: 224 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 22:36:14,091 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [478177044] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:36:14,091 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-25 22:36:14,091 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [4, 4] total 14 [2022-11-25 22:36:14,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119284554] [2022-11-25 22:36:14,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:36:14,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 22:36:14,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:36:14,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 22:36:14,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=130, Unknown=2, NotChecked=0, Total=210 [2022-11-25 22:36:14,095 INFO L87 Difference]: Start difference. First operand 138 states and 174 transitions. Second operand has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 8 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:36:17,559 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 22:36:19,647 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 22:36:21,870 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 22:36:22,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:36:22,271 INFO L93 Difference]: Finished difference Result 264 states and 336 transitions. [2022-11-25 22:36:22,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 22:36:22,277 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 8 states have internal predecessors, (31), 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 31 [2022-11-25 22:36:22,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:36:22,279 INFO L225 Difference]: With dead ends: 264 [2022-11-25 22:36:22,279 INFO L226 Difference]: Without dead ends: 133 [2022-11-25 22:36:22,280 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 77 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 17.3s TimeCoverageRelationStatistics Valid=89, Invalid=149, Unknown=2, NotChecked=0, Total=240 [2022-11-25 22:36:22,281 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 2 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-11-25 22:36:22,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 253 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 126 Invalid, 2 Unknown, 0 Unchecked, 7.0s Time] [2022-11-25 22:36:22,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2022-11-25 22:36:22,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2022-11-25 22:36:22,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 111 states have (on average 1.2162162162162162) internal successors, (135), 124 states have internal predecessors, (135), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-25 22:36:22,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 167 transitions. [2022-11-25 22:36:22,307 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 167 transitions. Word has length 31 [2022-11-25 22:36:22,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:36:22,308 INFO L495 AbstractCegarLoop]: Abstraction has 133 states and 167 transitions. [2022-11-25 22:36:22,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 8 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:36:22,308 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 167 transitions. [2022-11-25 22:36:22,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-25 22:36:22,310 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:36:22,310 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:36:22,323 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-25 22:36:22,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:36:22,522 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 22:36:22,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:36:22,522 INFO L85 PathProgramCache]: Analyzing trace with hash -1649700214, now seen corresponding path program 1 times [2022-11-25 22:36:22,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:36:22,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889331266] [2022-11-25 22:36:22,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:36:22,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:36:22,610 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:36:22,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1526643177] [2022-11-25 22:36:22,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:36:22,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:36:22,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:36:22,616 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:36:22,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 22:36:23,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:36:23,354 INFO L263 TraceCheckSpWp]: Trace formula consists of 709 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 22:36:23,358 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:36:23,459 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 22:36:23,459 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:36:23,572 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 22:36:23,573 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:36:23,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889331266] [2022-11-25 22:36:23,573 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:36:23,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1526643177] [2022-11-25 22:36:23,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1526643177] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:36:23,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [83900852] [2022-11-25 22:36:23,577 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2022-11-25 22:36:23,577 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 22:36:23,577 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 22:36:23,578 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 22:36:23,578 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 22:36:23,648 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-25 22:36:23,648 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 32 [2022-11-25 22:36:23,698 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-25 22:36:23,698 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-25 22:36:23,711 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-25 22:36:23,721 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-25 22:36:23,732 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-25 22:36:23,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:23,757 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2022-11-25 22:36:23,770 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-25 22:36:23,812 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-25 22:36:24,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:24,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:24,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:24,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:24,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:24,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:24,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:24,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:24,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:24,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:24,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:24,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:24,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:24,189 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-25 22:36:24,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:24,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:24,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:24,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:24,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:24,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:24,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:24,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:24,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:24,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:24,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:24,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:24,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:24,265 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9896988 treesize of output 5376290 [2022-11-25 22:36:24,318 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-25 22:36:24,350 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-25 22:36:24,396 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-25 22:36:24,411 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-25 22:36:24,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:24,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:24,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:24,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:24,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:24,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:24,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:24,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:24,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:24,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:24,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:24,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:24,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:24,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:24,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:24,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:24,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:24,487 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-25 22:36:24,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:24,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:24,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:24,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:24,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:24,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:24,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:24,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:24,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:24,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:24,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:24,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:24,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:24,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:24,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:24,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:24,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:24,555 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-25 22:36:24,638 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-25 22:36:24,717 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-11-25 22:36:24,717 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 66 [2022-11-25 22:36:24,809 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-25 22:36:24,809 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 44 treesize of output 77 [2022-11-25 22:36:24,844 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-25 22:36:24,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:24,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:24,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:24,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:24,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:24,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:24,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:24,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:24,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:24,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:24,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:24,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:24,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:24,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:24,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:24,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:24,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:24,899 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-25 22:36:26,129 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-25 22:36:26,134 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-25 22:36:26,186 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-25 22:36:26,187 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-25 22:36:26,199 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-25 22:36:26,211 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-25 22:36:26,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:26,242 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2022-11-25 22:36:26,259 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-25 22:36:26,269 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-25 22:36:26,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:26,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:26,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:26,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:26,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:26,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:26,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:26,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:26,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:26,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:26,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:26,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:26,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:26,706 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-25 22:36:26,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:26,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:26,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:26,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:26,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:26,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:26,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:26,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:26,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:26,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:26,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:26,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:26,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:26,750 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9896988 treesize of output 5376290 [2022-11-25 22:36:26,788 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-25 22:36:26,806 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-25 22:36:26,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:26,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:26,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:26,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:26,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:26,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:26,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:26,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:26,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:26,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:26,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:26,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:26,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:26,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:26,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:26,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:26,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:26,918 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-25 22:36:26,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:26,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:26,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:26,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:26,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:26,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:26,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:26,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:26,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:26,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:26,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:26,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:26,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:26,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:26,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:26,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:26,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:26,979 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-25 22:36:27,012 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-25 22:36:27,028 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-25 22:36:27,118 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-25 22:36:27,200 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-25 22:36:27,200 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 44 treesize of output 77 [2022-11-25 22:36:27,217 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 36 [2022-11-25 22:36:27,244 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-25 22:36:27,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:27,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:27,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:27,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:27,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:27,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:27,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:27,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:27,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:27,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:27,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:27,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:27,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:27,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:27,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:27,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:27,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:27,294 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-25 22:36:27,403 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 241 for LOIs [2022-11-25 22:36:27,548 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 22:36:35,692 WARN L233 SmtUtils]: Spent 5.02s on a formula simplification. DAG size of input: 224 DAG size of output: 208 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 22:36:43,970 WARN L233 SmtUtils]: Spent 6.12s on a formula simplification. DAG size of input: 240 DAG size of output: 224 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 22:36:55,159 WARN L233 SmtUtils]: Spent 7.01s on a formula simplification. DAG size of input: 251 DAG size of output: 236 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 22:37:07,941 WARN L233 SmtUtils]: Spent 6.53s on a formula simplification. DAG size of input: 273 DAG size of output: 250 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 22:37:22,912 WARN L233 SmtUtils]: Spent 8.73s on a formula simplification. DAG size of input: 273 DAG size of output: 250 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 22:37:23,779 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [83900852] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:37:23,779 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-25 22:37:23,779 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [5, 5] total 20 [2022-11-25 22:37:23,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691910671] [2022-11-25 22:37:23,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:37:23,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-25 22:37:23,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:37:23,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-25 22:37:23,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=260, Unknown=10, NotChecked=0, Total=380 [2022-11-25 22:37:23,782 INFO L87 Difference]: Start difference. First operand 133 states and 167 transitions. Second operand has 14 states, 13 states have (on average 2.923076923076923) internal successors, (38), 12 states have internal predecessors, (38), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 22:37:27,050 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 22:37:29,232 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 22:37:31,243 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 22:37:33,407 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 22:37:35,420 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 22:37:37,433 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 22:37:39,511 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 22:37:41,527 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 22:37:43,542 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 22:37:47,567 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 22:37:47,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:37:47,567 INFO L93 Difference]: Finished difference Result 251 states and 320 transitions. [2022-11-25 22:37:47,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 22:37:47,576 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.923076923076923) internal successors, (38), 12 states have internal predecessors, (38), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 44 [2022-11-25 22:37:47,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:37:47,577 INFO L225 Difference]: With dead ends: 251 [2022-11-25 22:37:47,577 INFO L226 Difference]: Without dead ends: 135 [2022-11-25 22:37:47,578 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 109 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 57.2s TimeCoverageRelationStatistics Valid=121, Invalid=289, Unknown=10, NotChecked=0, Total=420 [2022-11-25 22:37:47,579 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 0 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 1 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.8s IncrementalHoareTripleChecker+Time [2022-11-25 22:37:47,579 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 409 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 224 Invalid, 10 Unknown, 0 Unchecked, 22.8s Time] [2022-11-25 22:37:47,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2022-11-25 22:37:47,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 135. [2022-11-25 22:37:47,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 113 states have (on average 1.2123893805309736) internal successors, (137), 125 states have internal predecessors, (137), 16 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-25 22:37:47,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 169 transitions. [2022-11-25 22:37:47,631 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 169 transitions. Word has length 44 [2022-11-25 22:37:47,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:37:47,632 INFO L495 AbstractCegarLoop]: Abstraction has 135 states and 169 transitions. [2022-11-25 22:37:47,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.923076923076923) internal successors, (38), 12 states have internal predecessors, (38), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 22:37:47,632 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 169 transitions. [2022-11-25 22:37:47,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-25 22:37:47,634 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:37:47,634 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:37:47,650 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-25 22:37:47,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:37:47,843 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 22:37:47,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:37:47,843 INFO L85 PathProgramCache]: Analyzing trace with hash -850590074, now seen corresponding path program 1 times [2022-11-25 22:37:47,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:37:47,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793933330] [2022-11-25 22:37:47,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:37:47,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:37:47,919 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:37:47,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1147150606] [2022-11-25 22:37:47,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:37:47,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:37:47,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:37:47,922 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:37:47,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-25 22:37:48,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:37:48,642 INFO L263 TraceCheckSpWp]: Trace formula consists of 724 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 22:37:48,644 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:37:48,752 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-25 22:37:48,752 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:37:48,883 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-25 22:37:48,883 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:37:48,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793933330] [2022-11-25 22:37:48,884 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:37:48,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1147150606] [2022-11-25 22:37:48,884 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1147150606] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:37:48,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [497682728] [2022-11-25 22:37:48,887 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2022-11-25 22:37:48,887 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 22:37:48,888 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 22:37:48,889 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 22:37:48,889 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 22:37:48,949 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-25 22:37:48,949 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 32 [2022-11-25 22:37:49,014 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-25 22:37:49,014 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-25 22:37:49,026 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-25 22:37:49,035 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-25 22:37:49,047 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-25 22:37:49,070 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-25 22:37:49,078 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-25 22:37:49,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:49,097 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2022-11-25 22:37:49,421 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-25 22:37:49,436 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-25 22:37:49,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:49,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:49,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:49,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:49,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:49,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:49,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:49,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:49,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:49,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:49,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:49,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:49,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:49,489 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-25 22:37:49,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:49,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:49,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:49,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:49,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:49,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:49,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:49,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:49,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:49,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:49,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:49,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:49,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:49,537 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-11-25 22:37:49,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:49,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:49,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:49,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:49,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:49,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:49,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:49,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:49,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:49,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:49,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:49,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:49,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:49,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:49,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:49,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:49,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:49,671 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-25 22:37:49,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:49,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:49,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:49,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:49,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:49,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:49,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:49,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:49,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:49,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:49,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:49,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:49,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:49,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:49,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:49,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:49,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:49,726 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-25 22:37:49,757 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-25 22:37:49,773 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-25 22:37:49,821 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-25 22:37:49,855 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-25 22:37:49,952 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-25 22:37:49,952 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 44 treesize of output 77 [2022-11-25 22:37:49,973 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 36 [2022-11-25 22:37:50,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:50,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:50,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:50,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:50,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:50,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:50,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:50,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:50,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:50,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:50,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:50,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:50,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:50,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:50,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:50,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:50,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:50,036 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-25 22:37:50,246 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-25 22:37:50,252 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-25 22:37:50,258 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-25 22:37:50,288 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 63 [2022-11-25 22:37:50,298 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 65 [2022-11-25 22:37:50,308 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 63 [2022-11-25 22:37:50,332 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-25 22:37:50,339 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-25 22:37:50,347 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-25 22:37:50,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:50,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:50,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:50,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:50,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:50,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:50,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:50,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:50,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:50,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:50,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:50,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:50,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:50,450 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 25 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075032 treesize of output 5376218 [2022-11-25 22:37:50,480 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2022-11-25 22:37:50,502 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2022-11-25 22:37:50,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:50,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:50,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:50,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:50,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:50,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:50,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:50,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:50,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:50,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:50,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:50,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:50,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:37:50,738 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 25 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075032 treesize of output 5376218 [2022-11-25 22:37:50,779 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2022-11-25 22:37:50,801 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2022-11-25 22:37:52,257 INFO L217 Elim1Store]: Index analysis took 1084 ms [2022-11-25 22:37:59,566 WARN L233 SmtUtils]: Spent 7.31s on a formula simplification. DAG size of input: 78 DAG size of output: 27 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-25 22:37:59,566 INFO L321 Elim1Store]: treesize reduction 128, result has 22.4 percent of original size [2022-11-25 22:37:59,567 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 10752687 treesize of output 10752705 [2022-11-25 22:38:01,578 INFO L217 Elim1Store]: Index analysis took 1328 ms [2022-11-25 22:38:01,599 INFO L321 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2022-11-25 22:38:01,600 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 10752682 treesize of output 10752685 [2022-11-25 22:38:11,630 INFO L217 Elim1Store]: Index analysis took 641 ms [2022-11-25 22:38:58,616 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-25 22:38:58,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:38:58,811 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: line 130059 column 7: canceled at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:192) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne3(DualJunctionSaa.java:172) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne2(DualJunctionSaa.java:151) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne1(DualJunctionSaa.java:140) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne0(DualJunctionSaa.java:124) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne(DualJunctionSaa.java:108) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryExhaustivelyToEliminate(DualJunctionSaa.java:93) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:88) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToEliminateOne(QuantifierPusher.java:627) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyNewEliminationTechniquesExhaustively(QuantifierPusher.java:606) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyDualJunctionEliminationTechniques(QuantifierPusher.java:528) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:332) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:188) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:295) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:281) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.newQuantifier(SymbolicTools.java:285) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.projectExistentially(SymbolicTools.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermDomainOperationProvider.projectExistentially(TermDomainOperationProvider.java:1) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateTransformer.strongestPostcondition(PredicateTransformer.java:131) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.post(SymbolicTools.java:119) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretInternal(DagInterpreter.java:227) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:209) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:187) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:165) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpretForSingleMarker(DagInterpreter.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.FixpointLoopSummarizer.summarizeInternal(FixpointLoopSummarizer.java:125) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.FixpointLoopSummarizer.summarize(FixpointLoopSummarizer.java:98) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretLoop(DagInterpreter.java:177) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:168) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:136) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: line 130059 column 7: canceled at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1458) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:658) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:239) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:258) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.push(Scriptor.java:133) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.push(DiffWrapperScript.java:90) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.push(HistoryRecordingScript.java:107) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.UndoableWrapperScript.push(UndoableWrapperScript.java:54) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.pushContext(SimplifyDDA.java:736) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA$Simplifier.walk(SimplifyDDA.java:389) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.simplifyOnce(SimplifyDDA.java:648) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.simplify.SimplifyDDAWithTimeout.getSimplifiedTerm(SimplifyDDAWithTimeout.java:180) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:198) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:265) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1(Elim1Store.java:318) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:427) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:190) ... 65 more [2022-11-25 22:38:58,818 INFO L158 Benchmark]: Toolchain (without parser) took 198908.56ms. Allocated memory was 155.2MB in the beginning and 12.3GB in the end (delta: 12.2GB). Free memory was 118.6MB in the beginning and 8.7GB in the end (delta: -8.6GB). Peak memory consumption was 3.7GB. Max. memory is 16.1GB. [2022-11-25 22:38:58,819 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 119.5MB. Free memory was 83.7MB in the beginning and 83.7MB in the end (delta: 27.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 22:38:58,819 INFO L158 Benchmark]: CACSL2BoogieTranslator took 826.76ms. Allocated memory is still 155.2MB. Free memory was 118.6MB in the beginning and 91.6MB in the end (delta: 27.0MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-11-25 22:38:58,819 INFO L158 Benchmark]: Boogie Procedure Inliner took 96.82ms. Allocated memory is still 155.2MB. Free memory was 91.6MB in the beginning and 86.7MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 22:38:58,820 INFO L158 Benchmark]: Boogie Preprocessor took 89.97ms. Allocated memory is still 155.2MB. Free memory was 86.7MB in the beginning and 81.1MB in the end (delta: 5.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-25 22:38:58,820 INFO L158 Benchmark]: RCFGBuilder took 1791.22ms. Allocated memory is still 155.2MB. Free memory was 81.1MB in the beginning and 58.9MB in the end (delta: 22.2MB). Peak memory consumption was 41.3MB. Max. memory is 16.1GB. [2022-11-25 22:38:58,820 INFO L158 Benchmark]: TraceAbstraction took 196096.64ms. Allocated memory was 155.2MB in the beginning and 12.3GB in the end (delta: 12.2GB). Free memory was 57.9MB in the beginning and 8.7GB in the end (delta: -8.7GB). Peak memory consumption was 3.7GB. Max. memory is 16.1GB. [2022-11-25 22:38:58,822 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 119.5MB. Free memory was 83.7MB in the beginning and 83.7MB in the end (delta: 27.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 826.76ms. Allocated memory is still 155.2MB. Free memory was 118.6MB in the beginning and 91.6MB in the end (delta: 27.0MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 96.82ms. Allocated memory is still 155.2MB. Free memory was 91.6MB in the beginning and 86.7MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 89.97ms. Allocated memory is still 155.2MB. Free memory was 86.7MB in the beginning and 81.1MB in the end (delta: 5.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 1791.22ms. Allocated memory is still 155.2MB. Free memory was 81.1MB in the beginning and 58.9MB in the end (delta: 22.2MB). Peak memory consumption was 41.3MB. Max. memory is 16.1GB. * TraceAbstraction took 196096.64ms. Allocated memory was 155.2MB in the beginning and 12.3GB in the end (delta: 12.2GB). Free memory was 57.9MB in the beginning and 8.7GB in the end (delta: -8.7GB). Peak memory consumption was 3.7GB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: line 130059 column 7: canceled de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: line 130059 column 7: canceled: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:192) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-11-25 22:38:59,055 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2022-11-25 22:38:59,103 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test1-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 470d7065e9fd450e98d72326ef313763cf0710ea45f0a443b018e8a49bdf7927 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 22:39:01,822 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 22:39:01,825 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 22:39:01,867 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 22:39:01,868 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 22:39:01,869 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 22:39:01,871 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 22:39:01,873 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 22:39:01,875 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 22:39:01,876 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 22:39:01,878 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 22:39:01,879 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 22:39:01,880 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 22:39:01,881 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 22:39:01,882 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 22:39:01,884 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 22:39:01,885 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 22:39:01,886 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 22:39:01,888 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 22:39:01,890 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 22:39:01,892 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 22:39:01,893 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 22:39:01,894 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 22:39:01,895 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 22:39:01,899 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 22:39:01,900 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 22:39:01,900 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 22:39:01,901 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 22:39:01,902 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 22:39:01,903 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 22:39:01,903 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 22:39:01,904 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 22:39:01,905 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 22:39:01,906 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 22:39:01,908 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 22:39:01,908 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 22:39:01,909 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 22:39:01,909 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 22:39:01,910 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 22:39:01,911 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 22:39:01,912 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 22:39:01,913 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-32bit-Taipan_Bitvector.epf [2022-11-25 22:39:01,942 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 22:39:01,942 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 22:39:01,943 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 22:39:01,943 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 22:39:01,944 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 22:39:01,944 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 22:39:01,945 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 22:39:01,945 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 22:39:01,945 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 22:39:01,945 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 22:39:01,946 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 22:39:01,946 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 22:39:01,947 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 22:39:01,947 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 22:39:01,947 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 22:39:01,948 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 22:39:01,948 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 22:39:01,948 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 22:39:01,948 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 22:39:01,949 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 22:39:01,949 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 22:39:01,949 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-25 22:39:01,949 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 22:39:01,950 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-25 22:39:01,950 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 22:39:01,950 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 22:39:01,950 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 22:39:01,951 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 22:39:01,951 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 22:39:01,951 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 22:39:01,951 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 22:39:01,952 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:39:01,952 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 22:39:01,952 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 22:39:01,953 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 22:39:01,953 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-25 22:39:01,953 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-25 22:39:01,953 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 22:39:01,954 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 22:39:01,954 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 22:39:01,954 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 470d7065e9fd450e98d72326ef313763cf0710ea45f0a443b018e8a49bdf7927 [2022-11-25 22:39:02,357 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 22:39:02,395 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 22:39:02,403 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 22:39:02,404 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 22:39:02,406 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 22:39:02,409 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test1-1.i [2022-11-25 22:39:05,863 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 22:39:06,254 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 22:39:06,255 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test1-1.i [2022-11-25 22:39:06,290 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/data/8082fee0b/d8a8cb69584548ea8f7dfcff26b6907c/FLAG8f959bf64 [2022-11-25 22:39:06,316 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/data/8082fee0b/d8a8cb69584548ea8f7dfcff26b6907c [2022-11-25 22:39:06,326 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 22:39:06,328 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 22:39:06,329 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 22:39:06,330 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 22:39:06,336 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 22:39:06,337 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:39:06" (1/1) ... [2022-11-25 22:39:06,339 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64eb3e77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:39:06, skipping insertion in model container [2022-11-25 22:39:06,340 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:39:06" (1/1) ... [2022-11-25 22:39:06,349 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 22:39:06,430 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 22:39:07,067 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_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test1-1.i[33021,33034] [2022-11-25 22:39:07,256 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:39:07,276 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-25 22:39:07,294 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 22:39:07,326 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_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test1-1.i[33021,33034] [2022-11-25 22:39:07,417 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:39:07,423 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 22:39:07,453 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_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test1-1.i[33021,33034] [2022-11-25 22:39:07,510 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:39:07,556 INFO L208 MainTranslator]: Completed translation [2022-11-25 22:39:07,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:39:07 WrapperNode [2022-11-25 22:39:07,557 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 22:39:07,558 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 22:39:07,559 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 22:39:07,559 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 22:39:07,568 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:39:07" (1/1) ... [2022-11-25 22:39:07,595 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:39:07" (1/1) ... [2022-11-25 22:39:07,672 INFO L138 Inliner]: procedures = 180, calls = 186, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 624 [2022-11-25 22:39:07,687 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 22:39:07,688 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 22:39:07,688 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 22:39:07,689 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 22:39:07,715 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:39:07" (1/1) ... [2022-11-25 22:39:07,715 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:39:07" (1/1) ... [2022-11-25 22:39:07,722 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:39:07" (1/1) ... [2022-11-25 22:39:07,723 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:39:07" (1/1) ... [2022-11-25 22:39:07,754 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:39:07" (1/1) ... [2022-11-25 22:39:07,762 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:39:07" (1/1) ... [2022-11-25 22:39:07,765 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:39:07" (1/1) ... [2022-11-25 22:39:07,769 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:39:07" (1/1) ... [2022-11-25 22:39:07,775 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 22:39:07,776 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 22:39:07,776 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 22:39:07,777 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 22:39:07,778 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:39:07" (1/1) ... [2022-11-25 22:39:07,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:39:07,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:39:07,811 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 22:39:07,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 22:39:07,857 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-25 22:39:07,857 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-25 22:39:07,858 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-25 22:39:07,858 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-25 22:39:07,858 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-25 22:39:07,858 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-25 22:39:07,859 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 22:39:07,859 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 22:39:07,859 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 22:39:07,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 22:39:07,860 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 22:39:07,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 22:39:07,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-25 22:39:07,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-25 22:39:07,861 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 22:39:07,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 22:39:08,050 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 22:39:08,052 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 22:39:16,905 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 22:39:16,917 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 22:39:16,917 INFO L300 CfgBuilder]: Removed 31 assume(true) statements. [2022-11-25 22:39:16,921 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:39:16 BoogieIcfgContainer [2022-11-25 22:39:16,921 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 22:39:16,926 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 22:39:16,926 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 22:39:16,930 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 22:39:16,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 10:39:06" (1/3) ... [2022-11-25 22:39:16,933 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ab60577 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:39:16, skipping insertion in model container [2022-11-25 22:39:16,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:39:07" (2/3) ... [2022-11-25 22:39:16,936 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ab60577 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:39:16, skipping insertion in model container [2022-11-25 22:39:16,938 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:39:16" (3/3) ... [2022-11-25 22:39:16,943 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test1-1.i [2022-11-25 22:39:16,965 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 22:39:16,965 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-25 22:39:17,044 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 22:39:17,053 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;@ca705f6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 22:39:17,053 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-25 22:39:17,061 INFO L276 IsEmpty]: Start isEmpty. Operand has 136 states, 114 states have (on average 1.6842105263157894) internal successors, (192), 130 states have internal predecessors, (192), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-25 22:39:17,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-25 22:39:17,068 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:39:17,069 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-25 22:39:17,070 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 22:39:17,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:39:17,079 INFO L85 PathProgramCache]: Analyzing trace with hash 1126628338, now seen corresponding path program 1 times [2022-11-25 22:39:17,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:39:17,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1432077179] [2022-11-25 22:39:17,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:39:17,095 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:39:17,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:39:17,102 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 22:39:17,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-25 22:39:17,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:39:17,305 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-25 22:39:17,311 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:39:17,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:39:17,336 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:39:17,337 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:39:17,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1432077179] [2022-11-25 22:39:17,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1432077179] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:39:17,338 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:39:17,339 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 22:39:17,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725387331] [2022-11-25 22:39:17,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:39:17,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 22:39:17,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:39:17,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 22:39:17,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 22:39:17,401 INFO L87 Difference]: Start difference. First operand has 136 states, 114 states have (on average 1.6842105263157894) internal successors, (192), 130 states have internal predecessors, (192), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 1 states have (on average 6.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:39:17,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:39:17,487 INFO L93 Difference]: Finished difference Result 268 states and 444 transitions. [2022-11-25 22:39:17,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 22:39:17,490 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 6.0) internal successors, (6), 2 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) Word has length 6 [2022-11-25 22:39:17,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:39:17,502 INFO L225 Difference]: With dead ends: 268 [2022-11-25 22:39:17,502 INFO L226 Difference]: Without dead ends: 130 [2022-11-25 22:39:17,507 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 22:39:17,511 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 22:39:17,513 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 22:39:17,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2022-11-25 22:39:17,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2022-11-25 22:39:17,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 111 states have (on average 1.3513513513513513) internal successors, (150), 124 states have internal predecessors, (150), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-25 22:39:17,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 176 transitions. [2022-11-25 22:39:17,588 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 176 transitions. Word has length 6 [2022-11-25 22:39:17,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:39:17,589 INFO L495 AbstractCegarLoop]: Abstraction has 130 states and 176 transitions. [2022-11-25 22:39:17,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 6.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:39:17,590 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 176 transitions. [2022-11-25 22:39:17,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-25 22:39:17,591 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:39:17,592 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-25 22:39:17,614 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-25 22:39:17,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:39:17,806 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 22:39:17,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:39:17,807 INFO L85 PathProgramCache]: Analyzing trace with hash 1126331241, now seen corresponding path program 1 times [2022-11-25 22:39:17,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:39:17,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1885952707] [2022-11-25 22:39:17,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:39:17,808 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:39:17,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:39:17,812 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 22:39:17,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-25 22:39:18,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:39:18,047 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 22:39:18,049 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:39:18,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:39:18,095 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:39:18,095 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:39:18,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1885952707] [2022-11-25 22:39:18,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1885952707] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:39:18,100 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:39:18,102 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 22:39:18,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166248281] [2022-11-25 22:39:18,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:39:18,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:39:18,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:39:18,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:39:18,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:39:18,107 INFO L87 Difference]: Start difference. First operand 130 states and 176 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:39:19,387 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-25 22:39:20,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:39:20,278 INFO L93 Difference]: Finished difference Result 254 states and 346 transitions. [2022-11-25 22:39:20,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:39:20,279 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 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) Word has length 6 [2022-11-25 22:39:20,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:39:20,281 INFO L225 Difference]: With dead ends: 254 [2022-11-25 22:39:20,282 INFO L226 Difference]: Without dead ends: 220 [2022-11-25 22:39:20,282 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:39:20,284 INFO L413 NwaCegarLoop]: 174 mSDtfsCounter, 106 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:39:20,285 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 340 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-25 22:39:20,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2022-11-25 22:39:20,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 135. [2022-11-25 22:39:20,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 116 states have (on average 1.3362068965517242) internal successors, (155), 129 states have internal predecessors, (155), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-25 22:39:20,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 181 transitions. [2022-11-25 22:39:20,306 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 181 transitions. Word has length 6 [2022-11-25 22:39:20,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:39:20,306 INFO L495 AbstractCegarLoop]: Abstraction has 135 states and 181 transitions. [2022-11-25 22:39:20,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:39:20,307 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 181 transitions. [2022-11-25 22:39:20,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-25 22:39:20,309 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:39:20,309 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:39:20,327 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-25 22:39:20,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:39:20,527 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 22:39:20,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:39:20,528 INFO L85 PathProgramCache]: Analyzing trace with hash -1695874247, now seen corresponding path program 1 times [2022-11-25 22:39:20,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:39:20,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1770275856] [2022-11-25 22:39:20,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:39:20,530 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:39:20,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:39:20,532 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 22:39:20,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-25 22:39:21,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:39:21,771 INFO L263 TraceCheckSpWp]: Trace formula consists of 1047 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 22:39:21,776 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:39:21,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:39:21,833 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:39:21,834 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:39:21,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1770275856] [2022-11-25 22:39:21,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1770275856] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:39:21,835 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:39:21,835 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:39:21,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331216398] [2022-11-25 22:39:21,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:39:21,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:39:21,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:39:21,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:39:21,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:39:21,838 INFO L87 Difference]: Start difference. First operand 135 states and 181 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:39:22,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:39:22,013 INFO L93 Difference]: Finished difference Result 270 states and 365 transitions. [2022-11-25 22:39:22,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:39:22,014 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 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 57 [2022-11-25 22:39:22,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:39:22,016 INFO L225 Difference]: With dead ends: 270 [2022-11-25 22:39:22,017 INFO L226 Difference]: Without dead ends: 142 [2022-11-25 22:39:22,018 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:39:22,019 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 135 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:39:22,020 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 327 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 22:39:22,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2022-11-25 22:39:22,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 138. [2022-11-25 22:39:22,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 119 states have (on average 1.2605042016806722) internal successors, (150), 132 states have internal predecessors, (150), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-25 22:39:22,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 176 transitions. [2022-11-25 22:39:22,052 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 176 transitions. Word has length 57 [2022-11-25 22:39:22,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:39:22,053 INFO L495 AbstractCegarLoop]: Abstraction has 138 states and 176 transitions. [2022-11-25 22:39:22,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:39:22,054 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 176 transitions. [2022-11-25 22:39:22,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-25 22:39:22,056 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:39:22,056 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:39:22,096 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-25 22:39:22,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:39:22,282 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 22:39:22,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:39:22,283 INFO L85 PathProgramCache]: Analyzing trace with hash 988991685, now seen corresponding path program 1 times [2022-11-25 22:39:22,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:39:22,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1794815270] [2022-11-25 22:39:22,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:39:22,284 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:39:22,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:39:22,287 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 22:39:22,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-25 22:39:23,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:39:23,530 INFO L263 TraceCheckSpWp]: Trace formula consists of 1041 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 22:39:23,533 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:39:23,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:39:23,911 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:39:23,911 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:39:23,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1794815270] [2022-11-25 22:39:23,911 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1794815270] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:39:23,911 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:39:23,912 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 22:39:23,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112654219] [2022-11-25 22:39:23,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:39:23,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:39:23,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:39:23,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:39:23,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:39:23,915 INFO L87 Difference]: Start difference. First operand 138 states and 176 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:39:24,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:39:24,500 INFO L93 Difference]: Finished difference Result 308 states and 389 transitions. [2022-11-25 22:39:24,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:39:24,506 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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 57 [2022-11-25 22:39:24,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:39:24,508 INFO L225 Difference]: With dead ends: 308 [2022-11-25 22:39:24,508 INFO L226 Difference]: Without dead ends: 177 [2022-11-25 22:39:24,509 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:39:24,510 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 11 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-25 22:39:24,511 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 312 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-25 22:39:24,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2022-11-25 22:39:24,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2022-11-25 22:39:24,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 158 states have (on average 1.2215189873417722) internal successors, (193), 171 states have internal predecessors, (193), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-25 22:39:24,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 219 transitions. [2022-11-25 22:39:24,531 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 219 transitions. Word has length 57 [2022-11-25 22:39:24,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:39:24,532 INFO L495 AbstractCegarLoop]: Abstraction has 177 states and 219 transitions. [2022-11-25 22:39:24,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:39:24,533 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 219 transitions. [2022-11-25 22:39:24,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-11-25 22:39:24,535 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:39:24,535 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:39:24,574 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-25 22:39:24,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:39:24,762 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 22:39:24,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:39:24,762 INFO L85 PathProgramCache]: Analyzing trace with hash 548813316, now seen corresponding path program 1 times [2022-11-25 22:39:24,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:39:24,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1808896335] [2022-11-25 22:39:24,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:39:24,764 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:39:24,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:39:24,766 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 22:39:24,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-25 22:39:25,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:39:25,544 INFO L263 TraceCheckSpWp]: Trace formula consists of 693 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 22:39:25,548 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:39:25,583 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:39:25,583 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:39:25,583 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:39:25,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1808896335] [2022-11-25 22:39:25,587 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1808896335] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:39:25,588 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:39:25,588 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:39:25,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645618612] [2022-11-25 22:39:25,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:39:25,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:39:25,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:39:25,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:39:25,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:39:25,590 INFO L87 Difference]: Start difference. First operand 177 states and 219 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 22:39:25,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:39:25,661 INFO L93 Difference]: Finished difference Result 311 states and 394 transitions. [2022-11-25 22:39:25,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:39:25,662 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 72 [2022-11-25 22:39:25,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:39:25,664 INFO L225 Difference]: With dead ends: 311 [2022-11-25 22:39:25,664 INFO L226 Difference]: Without dead ends: 180 [2022-11-25 22:39:25,665 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:39:25,666 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 2 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 22:39:25,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 482 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 22:39:25,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2022-11-25 22:39:25,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 180. [2022-11-25 22:39:25,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 160 states have (on average 1.225) internal successors, (196), 174 states have internal predecessors, (196), 13 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (14), 4 states have call predecessors, (14), 13 states have call successors, (14) [2022-11-25 22:39:25,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 223 transitions. [2022-11-25 22:39:25,682 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 223 transitions. Word has length 72 [2022-11-25 22:39:25,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:39:25,683 INFO L495 AbstractCegarLoop]: Abstraction has 180 states and 223 transitions. [2022-11-25 22:39:25,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 22:39:25,684 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 223 transitions. [2022-11-25 22:39:25,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-25 22:39:25,686 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:39:25,686 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:39:25,709 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-25 22:39:25,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:39:25,909 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 22:39:25,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:39:25,910 INFO L85 PathProgramCache]: Analyzing trace with hash 881968866, now seen corresponding path program 1 times [2022-11-25 22:39:25,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:39:25,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [59128571] [2022-11-25 22:39:25,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:39:25,911 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:39:25,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:39:25,912 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 22:39:25,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-25 22:39:26,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:39:26,730 INFO L263 TraceCheckSpWp]: Trace formula consists of 715 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 22:39:26,733 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:39:26,791 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 22:39:26,796 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:39:26,960 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 22:39:26,961 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:39:26,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [59128571] [2022-11-25 22:39:26,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [59128571] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:39:26,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [775810997] [2022-11-25 22:39:26,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:39:26,962 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-25 22:39:26,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/cvc4 [2022-11-25 22:39:26,965 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-25 22:39:26,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2022-11-25 22:39:28,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:39:28,469 INFO L263 TraceCheckSpWp]: Trace formula consists of 715 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 22:39:28,473 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:39:28,511 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 22:39:28,512 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:39:28,594 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 22:39:28,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [775810997] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:39:28,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [806005962] [2022-11-25 22:39:28,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:39:28,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:39:28,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:39:28,600 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:39:28,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-25 22:39:29,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:39:29,447 INFO L263 TraceCheckSpWp]: Trace formula consists of 715 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 22:39:29,451 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:39:29,732 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-25 22:39:29,732 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:39:29,732 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [806005962] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:39:29,732 INFO L184 FreeRefinementEngine]: Found 1 perfect and 4 imperfect interpolant sequences. [2022-11-25 22:39:29,733 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5, 5, 5, 5] total 10 [2022-11-25 22:39:29,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136715384] [2022-11-25 22:39:29,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:39:29,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:39:29,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:39:29,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:39:29,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-11-25 22:39:29,735 INFO L87 Difference]: Start difference. First operand 180 states and 223 transitions. Second operand has 4 states, 3 states have (on average 22.0) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 22:39:31,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:39:31,058 INFO L93 Difference]: Finished difference Result 227 states and 284 transitions. [2022-11-25 22:39:31,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:39:31,059 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 22.0) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 74 [2022-11-25 22:39:31,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:39:31,061 INFO L225 Difference]: With dead ends: 227 [2022-11-25 22:39:31,061 INFO L226 Difference]: Without dead ends: 226 [2022-11-25 22:39:31,062 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 366 GetRequests, 357 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-11-25 22:39:31,063 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 37 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-25 22:39:31,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 475 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-25 22:39:31,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2022-11-25 22:39:31,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2022-11-25 22:39:31,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 203 states have (on average 1.2266009852216748) internal successors, (249), 217 states have internal predecessors, (249), 16 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (18), 7 states have call predecessors, (18), 16 states have call successors, (18) [2022-11-25 22:39:31,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 283 transitions. [2022-11-25 22:39:31,081 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 283 transitions. Word has length 74 [2022-11-25 22:39:31,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:39:31,082 INFO L495 AbstractCegarLoop]: Abstraction has 226 states and 283 transitions. [2022-11-25 22:39:31,082 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 22.0) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 22:39:31,082 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 283 transitions. [2022-11-25 22:39:31,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-25 22:39:31,084 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:39:31,085 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:39:31,112 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-25 22:39:31,320 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-25 22:39:31,516 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2022-11-25 22:39:31,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt [2022-11-25 22:39:31,708 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 22:39:31,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:39:31,708 INFO L85 PathProgramCache]: Analyzing trace with hash 1992697225, now seen corresponding path program 1 times [2022-11-25 22:39:31,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:39:31,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1606479733] [2022-11-25 22:39:31,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:39:31,709 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:39:31,709 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:39:31,710 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 22:39:31,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-25 22:39:32,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:39:32,684 INFO L263 TraceCheckSpWp]: Trace formula consists of 745 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 22:39:32,688 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:39:32,740 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 22:39:32,740 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:39:32,905 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 22:39:32,906 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:39:32,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1606479733] [2022-11-25 22:39:32,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1606479733] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:39:32,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [467723094] [2022-11-25 22:39:32,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:39:32,906 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-25 22:39:32,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/cvc4 [2022-11-25 22:39:32,908 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-25 22:39:32,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2022-11-25 22:39:34,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:39:34,532 INFO L263 TraceCheckSpWp]: Trace formula consists of 745 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 22:39:34,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:39:34,557 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 22:39:34,558 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:39:34,633 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 22:39:34,634 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [467723094] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:39:34,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [22098283] [2022-11-25 22:39:34,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:39:34,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:39:34,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:39:34,636 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:39:34,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-25 22:39:35,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:39:35,534 INFO L263 TraceCheckSpWp]: Trace formula consists of 745 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 22:39:35,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:39:35,567 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 22:39:35,567 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:39:35,732 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 22:39:35,732 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [22098283] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:39:35,733 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-25 22:39:35,733 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 11 [2022-11-25 22:39:35,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034197291] [2022-11-25 22:39:35,734 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-25 22:39:35,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-25 22:39:35,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:39:35,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-25 22:39:35,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2022-11-25 22:39:35,737 INFO L87 Difference]: Start difference. First operand 226 states and 283 transitions. Second operand has 11 states, 11 states have (on average 8.0) internal successors, (88), 11 states have internal predecessors, (88), 2 states have call successors, (4), 2 states have call predecessors, (4), 5 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-25 22:39:36,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:39:36,346 INFO L93 Difference]: Finished difference Result 418 states and 544 transitions. [2022-11-25 22:39:36,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 22:39:36,348 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.0) internal successors, (88), 11 states have internal predecessors, (88), 2 states have call successors, (4), 2 states have call predecessors, (4), 5 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 78 [2022-11-25 22:39:36,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:39:36,351 INFO L225 Difference]: With dead ends: 418 [2022-11-25 22:39:36,351 INFO L226 Difference]: Without dead ends: 241 [2022-11-25 22:39:36,352 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 473 GetRequests, 453 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=156, Invalid=306, Unknown=0, NotChecked=0, Total=462 [2022-11-25 22:39:36,353 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 20 mSDsluCounter, 790 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 952 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 22:39:36,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 952 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 22:39:36,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2022-11-25 22:39:36,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 237. [2022-11-25 22:39:36,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 213 states have (on average 1.2535211267605635) internal successors, (267), 227 states have internal predecessors, (267), 16 states have call successors, (16), 3 states have call predecessors, (16), 4 states have return successors, (18), 7 states have call predecessors, (18), 16 states have call successors, (18) [2022-11-25 22:39:36,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 301 transitions. [2022-11-25 22:39:36,377 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 301 transitions. Word has length 78 [2022-11-25 22:39:36,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:39:36,380 INFO L495 AbstractCegarLoop]: Abstraction has 237 states and 301 transitions. [2022-11-25 22:39:36,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.0) internal successors, (88), 11 states have internal predecessors, (88), 2 states have call successors, (4), 2 states have call predecessors, (4), 5 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-25 22:39:36,380 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 301 transitions. [2022-11-25 22:39:36,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-25 22:39:36,392 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:39:36,392 INFO L195 NwaCegarLoop]: trace histogram [8, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:39:36,418 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2022-11-25 22:39:36,626 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-25 22:39:36,827 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-25 22:39:37,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:39:37,009 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 22:39:37,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:39:37,010 INFO L85 PathProgramCache]: Analyzing trace with hash 1553229867, now seen corresponding path program 2 times [2022-11-25 22:39:37,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:39:37,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1446331800] [2022-11-25 22:39:37,011 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 22:39:37,011 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:39:37,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:39:37,013 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 22:39:37,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-25 22:39:38,087 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 22:39:38,087 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 22:39:38,135 INFO L263 TraceCheckSpWp]: Trace formula consists of 811 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 22:39:38,137 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:39:38,262 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 32 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-25 22:39:38,262 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:39:38,644 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 4 proven. 37 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-25 22:39:38,644 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:39:38,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1446331800] [2022-11-25 22:39:38,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1446331800] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:39:38,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1269427871] [2022-11-25 22:39:38,645 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 22:39:38,645 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-25 22:39:38,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/cvc4 [2022-11-25 22:39:38,646 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-25 22:39:38,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b93e0bb-6d9a-45ea-a1e4-d1a83571e125/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process