./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 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_8119d5fb-5bb5-497c-9d9e-61497928d957/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8119d5fb-5bb5-497c-9d9e-61497928d957/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8119d5fb-5bb5-497c-9d9e-61497928d957/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8119d5fb-5bb5-497c-9d9e-61497928d957/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8119d5fb-5bb5-497c-9d9e-61497928d957/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8119d5fb-5bb5-497c-9d9e-61497928d957/bin/utaipan-g80aRyZoba --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 133ba40f5b51c272364c51a4e246bcd97a40cd88b0bcd4bd92df8f8d6bb23a52 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-22 00:20:03,744 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 00:20:03,747 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 00:20:03,769 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 00:20:03,769 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 00:20:03,771 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 00:20:03,772 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 00:20:03,774 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 00:20:03,776 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 00:20:03,777 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 00:20:03,778 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 00:20:03,779 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 00:20:03,780 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 00:20:03,781 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 00:20:03,782 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 00:20:03,784 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 00:20:03,785 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 00:20:03,786 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 00:20:03,788 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 00:20:03,790 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 00:20:03,792 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 00:20:03,794 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 00:20:03,795 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 00:20:03,797 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 00:20:03,801 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 00:20:03,801 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 00:20:03,802 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 00:20:03,803 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 00:20:03,803 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 00:20:03,804 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 00:20:03,805 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 00:20:03,806 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 00:20:03,807 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 00:20:03,808 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 00:20:03,809 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 00:20:03,810 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 00:20:03,811 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 00:20:03,811 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 00:20:03,811 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 00:20:03,813 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 00:20:03,814 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 00:20:03,815 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8119d5fb-5bb5-497c-9d9e-61497928d957/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-22 00:20:03,837 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 00:20:03,837 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 00:20:03,838 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 00:20:03,838 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 00:20:03,839 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 00:20:03,839 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 00:20:03,839 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 00:20:03,840 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 00:20:03,840 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 00:20:03,840 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 00:20:03,840 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 00:20:03,841 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 00:20:03,841 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 00:20:03,841 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 00:20:03,841 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 00:20:03,842 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 00:20:03,842 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 00:20:03,842 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 00:20:03,843 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 00:20:03,843 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 00:20:03,843 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 00:20:03,844 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 00:20:03,844 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 00:20:03,844 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 00:20:03,844 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 00:20:03,845 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 00:20:03,845 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 00:20:03,845 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-22 00:20:03,845 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 00:20:03,845 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 00:20:03,846 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 00:20:03,846 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 00:20:03,846 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 00:20:03,846 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 00:20:03,847 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:20:03,847 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 00:20:03,847 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 00:20:03,847 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 00:20:03,848 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 00:20:03,848 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 00:20:03,848 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 00:20:03,848 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 00:20:03,849 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 00:20:03,849 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_8119d5fb-5bb5-497c-9d9e-61497928d957/bin/utaipan-g80aRyZoba/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8119d5fb-5bb5-497c-9d9e-61497928d957/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 133ba40f5b51c272364c51a4e246bcd97a40cd88b0bcd4bd92df8f8d6bb23a52 [2022-11-22 00:20:04,072 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 00:20:04,092 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 00:20:04,094 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 00:20:04,096 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 00:20:04,096 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 00:20:04,097 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8119d5fb-5bb5-497c-9d9e-61497928d957/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c [2022-11-22 00:20:07,217 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 00:20:07,395 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 00:20:07,396 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8119d5fb-5bb5-497c-9d9e-61497928d957/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c [2022-11-22 00:20:07,403 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8119d5fb-5bb5-497c-9d9e-61497928d957/bin/utaipan-g80aRyZoba/data/20b883956/61e9ae2b725b44ab9a42bd44110423aa/FLAG43ebfbeb5 [2022-11-22 00:20:07,421 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8119d5fb-5bb5-497c-9d9e-61497928d957/bin/utaipan-g80aRyZoba/data/20b883956/61e9ae2b725b44ab9a42bd44110423aa [2022-11-22 00:20:07,424 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 00:20:07,426 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 00:20:07,427 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 00:20:07,428 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 00:20:07,431 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 00:20:07,432 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:20:07" (1/1) ... [2022-11-22 00:20:07,433 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e32cf70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:20:07, skipping insertion in model container [2022-11-22 00:20:07,434 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:20:07" (1/1) ... [2022-11-22 00:20:07,441 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 00:20:07,467 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 00:20:07,659 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_8119d5fb-5bb5-497c-9d9e-61497928d957/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[1224,1237] [2022-11-22 00:20:07,662 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_8119d5fb-5bb5-497c-9d9e-61497928d957/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[1636,1649] [2022-11-22 00:20:07,663 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_8119d5fb-5bb5-497c-9d9e-61497928d957/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[1851,1864] [2022-11-22 00:20:07,666 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_8119d5fb-5bb5-497c-9d9e-61497928d957/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[2384,2397] [2022-11-22 00:20:07,668 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_8119d5fb-5bb5-497c-9d9e-61497928d957/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[2599,2612] [2022-11-22 00:20:07,670 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_8119d5fb-5bb5-497c-9d9e-61497928d957/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[2901,2914] [2022-11-22 00:20:07,672 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_8119d5fb-5bb5-497c-9d9e-61497928d957/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[3116,3129] [2022-11-22 00:20:07,674 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_8119d5fb-5bb5-497c-9d9e-61497928d957/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[3386,3399] [2022-11-22 00:20:07,676 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_8119d5fb-5bb5-497c-9d9e-61497928d957/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[3604,3617] [2022-11-22 00:20:07,679 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_8119d5fb-5bb5-497c-9d9e-61497928d957/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[4088,4101] [2022-11-22 00:20:07,680 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_8119d5fb-5bb5-497c-9d9e-61497928d957/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[4306,4319] [2022-11-22 00:20:07,682 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_8119d5fb-5bb5-497c-9d9e-61497928d957/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[4802,4815] [2022-11-22 00:20:07,685 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_8119d5fb-5bb5-497c-9d9e-61497928d957/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[5203,5216] [2022-11-22 00:20:07,687 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_8119d5fb-5bb5-497c-9d9e-61497928d957/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[5421,5434] [2022-11-22 00:20:07,688 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_8119d5fb-5bb5-497c-9d9e-61497928d957/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[5792,5805] [2022-11-22 00:20:07,690 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_8119d5fb-5bb5-497c-9d9e-61497928d957/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[6010,6023] [2022-11-22 00:20:07,691 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_8119d5fb-5bb5-497c-9d9e-61497928d957/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[6296,6309] [2022-11-22 00:20:07,693 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_8119d5fb-5bb5-497c-9d9e-61497928d957/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[6514,6527] [2022-11-22 00:20:07,695 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:20:07,709 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 00:20:07,745 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_8119d5fb-5bb5-497c-9d9e-61497928d957/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[1224,1237] [2022-11-22 00:20:07,749 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_8119d5fb-5bb5-497c-9d9e-61497928d957/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[1636,1649] [2022-11-22 00:20:07,757 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_8119d5fb-5bb5-497c-9d9e-61497928d957/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[1851,1864] [2022-11-22 00:20:07,760 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8119d5fb-5bb5-497c-9d9e-61497928d957/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[2384,2397] [2022-11-22 00:20:07,761 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_8119d5fb-5bb5-497c-9d9e-61497928d957/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[2599,2612] [2022-11-22 00:20:07,763 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_8119d5fb-5bb5-497c-9d9e-61497928d957/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[2901,2914] [2022-11-22 00:20:07,767 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_8119d5fb-5bb5-497c-9d9e-61497928d957/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[3116,3129] [2022-11-22 00:20:07,771 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_8119d5fb-5bb5-497c-9d9e-61497928d957/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[3386,3399] [2022-11-22 00:20:07,772 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_8119d5fb-5bb5-497c-9d9e-61497928d957/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[3604,3617] [2022-11-22 00:20:07,776 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_8119d5fb-5bb5-497c-9d9e-61497928d957/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[4088,4101] [2022-11-22 00:20:07,777 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_8119d5fb-5bb5-497c-9d9e-61497928d957/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[4306,4319] [2022-11-22 00:20:07,779 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_8119d5fb-5bb5-497c-9d9e-61497928d957/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[4802,4815] [2022-11-22 00:20:07,781 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_8119d5fb-5bb5-497c-9d9e-61497928d957/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[5203,5216] [2022-11-22 00:20:07,782 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_8119d5fb-5bb5-497c-9d9e-61497928d957/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[5421,5434] [2022-11-22 00:20:07,783 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_8119d5fb-5bb5-497c-9d9e-61497928d957/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[5792,5805] [2022-11-22 00:20:07,791 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_8119d5fb-5bb5-497c-9d9e-61497928d957/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[6010,6023] [2022-11-22 00:20:07,799 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_8119d5fb-5bb5-497c-9d9e-61497928d957/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[6296,6309] [2022-11-22 00:20:07,800 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_8119d5fb-5bb5-497c-9d9e-61497928d957/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[6514,6527] [2022-11-22 00:20:07,802 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:20:07,816 INFO L208 MainTranslator]: Completed translation [2022-11-22 00:20:07,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:20:07 WrapperNode [2022-11-22 00:20:07,816 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 00:20:07,818 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 00:20:07,818 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 00:20:07,818 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 00:20:07,826 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:20:07" (1/1) ... [2022-11-22 00:20:07,849 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:20:07" (1/1) ... [2022-11-22 00:20:07,881 INFO L138 Inliner]: procedures = 14, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 254 [2022-11-22 00:20:07,882 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 00:20:07,883 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 00:20:07,883 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 00:20:07,883 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 00:20:07,891 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:20:07" (1/1) ... [2022-11-22 00:20:07,891 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:20:07" (1/1) ... [2022-11-22 00:20:07,893 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:20:07" (1/1) ... [2022-11-22 00:20:07,894 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:20:07" (1/1) ... [2022-11-22 00:20:07,898 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:20:07" (1/1) ... [2022-11-22 00:20:07,901 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:20:07" (1/1) ... [2022-11-22 00:20:07,902 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:20:07" (1/1) ... [2022-11-22 00:20:07,903 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:20:07" (1/1) ... [2022-11-22 00:20:07,906 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 00:20:07,907 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 00:20:07,907 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 00:20:07,907 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 00:20:07,911 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:20:07" (1/1) ... [2022-11-22 00:20:07,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:20:07,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8119d5fb-5bb5-497c-9d9e-61497928d957/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:20:07,958 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8119d5fb-5bb5-497c-9d9e-61497928d957/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 00:20:07,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8119d5fb-5bb5-497c-9d9e-61497928d957/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 00:20:08,012 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 00:20:08,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 00:20:08,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 00:20:08,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 00:20:08,117 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 00:20:08,118 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 00:20:08,391 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 00:20:08,417 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 00:20:08,417 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-22 00:20:08,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:20:08 BoogieIcfgContainer [2022-11-22 00:20:08,454 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 00:20:08,457 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 00:20:08,458 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 00:20:08,461 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 00:20:08,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:20:07" (1/3) ... [2022-11-22 00:20:08,462 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bde4d8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:20:08, skipping insertion in model container [2022-11-22 00:20:08,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:20:07" (2/3) ... [2022-11-22 00:20:08,463 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bde4d8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:20:08, skipping insertion in model container [2022-11-22 00:20:08,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:20:08" (3/3) ... [2022-11-22 00:20:08,476 INFO L112 eAbstractionObserver]: Analyzing ICFG apache-get-tag.i.v+lhb-reducer.c [2022-11-22 00:20:08,526 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 00:20:08,526 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-11-22 00:20:08,573 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 00:20:08,578 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;@66c87159, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 00:20:08,578 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-11-22 00:20:08,582 INFO L276 IsEmpty]: Start isEmpty. Operand has 57 states, 46 states have (on average 1.8695652173913044) internal successors, (86), 56 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:20:08,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-22 00:20:08,589 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:20:08,589 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-22 00:20:08,590 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-22 00:20:08,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:20:08,600 INFO L85 PathProgramCache]: Analyzing trace with hash 207737, now seen corresponding path program 1 times [2022-11-22 00:20:08,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:20:08,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358861387] [2022-11-22 00:20:08,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:20:08,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:20:08,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:20:08,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:20:08,798 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:20:08,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358861387] [2022-11-22 00:20:08,799 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358861387] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:20:08,800 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:20:08,800 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-22 00:20:08,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4242549] [2022-11-22 00:20:08,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:20:08,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:20:08,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:20:08,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:20:08,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:20:08,838 INFO L87 Difference]: Start difference. First operand has 57 states, 46 states have (on average 1.8695652173913044) internal successors, (86), 56 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.5) 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) [2022-11-22 00:20:08,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:20:08,909 INFO L93 Difference]: Finished difference Result 59 states and 87 transitions. [2022-11-22 00:20:08,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:20:08,918 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) 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 [2022-11-22 00:20:08,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:20:08,926 INFO L225 Difference]: With dead ends: 59 [2022-11-22 00:20:08,939 INFO L226 Difference]: Without dead ends: 45 [2022-11-22 00:20:08,942 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:20:08,945 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 64 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 00:20:08,946 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 42 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 00:20:08,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-11-22 00:20:08,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2022-11-22 00:20:08,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 36 states have (on average 1.3611111111111112) internal successors, (49), 44 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:20:08,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 49 transitions. [2022-11-22 00:20:09,000 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 49 transitions. Word has length 3 [2022-11-22 00:20:09,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:20:09,001 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 49 transitions. [2022-11-22 00:20:09,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) 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) [2022-11-22 00:20:09,003 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 49 transitions. [2022-11-22 00:20:09,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-22 00:20:09,005 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:20:09,006 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-22 00:20:09,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 00:20:09,013 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-22 00:20:09,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:20:09,014 INFO L85 PathProgramCache]: Analyzing trace with hash 6439886, now seen corresponding path program 1 times [2022-11-22 00:20:09,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:20:09,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133581734] [2022-11-22 00:20:09,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:20:09,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:20:09,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:20:09,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:20:09,101 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:20:09,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133581734] [2022-11-22 00:20:09,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133581734] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:20:09,102 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:20:09,102 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 00:20:09,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609963181] [2022-11-22 00:20:09,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:20:09,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:20:09,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:20:09,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:20:09,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:20:09,105 INFO L87 Difference]: Start difference. First operand 45 states and 49 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:20:09,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:20:09,135 INFO L93 Difference]: Finished difference Result 45 states and 49 transitions. [2022-11-22 00:20:09,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:20:09,136 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-11-22 00:20:09,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:20:09,137 INFO L225 Difference]: With dead ends: 45 [2022-11-22 00:20:09,137 INFO L226 Difference]: Without dead ends: 44 [2022-11-22 00:20:09,138 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:20:09,139 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 0 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 00:20:09,140 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 79 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 00:20:09,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-11-22 00:20:09,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2022-11-22 00:20:09,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 36 states have (on average 1.3333333333333333) internal successors, (48), 43 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:20:09,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 48 transitions. [2022-11-22 00:20:09,146 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 48 transitions. Word has length 4 [2022-11-22 00:20:09,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:20:09,147 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 48 transitions. [2022-11-22 00:20:09,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:20:09,147 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 48 transitions. [2022-11-22 00:20:09,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-22 00:20:09,148 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:20:09,148 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:20:09,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 00:20:09,149 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-22 00:20:09,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:20:09,150 INFO L85 PathProgramCache]: Analyzing trace with hash -815022600, now seen corresponding path program 1 times [2022-11-22 00:20:09,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:20:09,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569402454] [2022-11-22 00:20:09,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:20:09,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:20:09,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:20:09,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:20:09,225 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:20:09,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569402454] [2022-11-22 00:20:09,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569402454] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:20:09,226 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:20:09,226 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 00:20:09,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776519481] [2022-11-22 00:20:09,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:20:09,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:20:09,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:20:09,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:20:09,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:20:09,229 INFO L87 Difference]: Start difference. First operand 44 states and 48 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:20:09,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:20:09,300 INFO L93 Difference]: Finished difference Result 54 states and 58 transitions. [2022-11-22 00:20:09,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:20:09,300 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-22 00:20:09,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:20:09,301 INFO L225 Difference]: With dead ends: 54 [2022-11-22 00:20:09,302 INFO L226 Difference]: Without dead ends: 50 [2022-11-22 00:20:09,302 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:20:09,303 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 6 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:20:09,304 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 42 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 00:20:09,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-11-22 00:20:09,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2022-11-22 00:20:09,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 42 states have (on average 1.2857142857142858) internal successors, (54), 49 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:20:09,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 54 transitions. [2022-11-22 00:20:09,313 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 54 transitions. Word has length 10 [2022-11-22 00:20:09,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:20:09,313 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 54 transitions. [2022-11-22 00:20:09,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:20:09,314 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 54 transitions. [2022-11-22 00:20:09,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-22 00:20:09,315 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:20:09,315 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:20:09,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 00:20:09,315 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-22 00:20:09,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:20:09,317 INFO L85 PathProgramCache]: Analyzing trace with hash -2044534159, now seen corresponding path program 1 times [2022-11-22 00:20:09,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:20:09,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749710604] [2022-11-22 00:20:09,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:20:09,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:20:09,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:20:09,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:20:09,461 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:20:09,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749710604] [2022-11-22 00:20:09,461 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749710604] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:20:09,462 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:20:09,462 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 00:20:09,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967646814] [2022-11-22 00:20:09,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:20:09,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 00:20:09,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:20:09,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 00:20:09,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-22 00:20:09,464 INFO L87 Difference]: Start difference. First operand 50 states and 54 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:20:09,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:20:09,607 INFO L93 Difference]: Finished difference Result 79 states and 90 transitions. [2022-11-22 00:20:09,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 00:20:09,608 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-11-22 00:20:09,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:20:09,611 INFO L225 Difference]: With dead ends: 79 [2022-11-22 00:20:09,612 INFO L226 Difference]: Without dead ends: 75 [2022-11-22 00:20:09,612 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-22 00:20:09,617 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 41 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:20:09,623 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 28 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 00:20:09,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2022-11-22 00:20:09,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 71. [2022-11-22 00:20:09,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 63 states have (on average 1.2380952380952381) internal successors, (78), 70 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:20:09,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 78 transitions. [2022-11-22 00:20:09,641 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 78 transitions. Word has length 17 [2022-11-22 00:20:09,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:20:09,642 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 78 transitions. [2022-11-22 00:20:09,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:20:09,642 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 78 transitions. [2022-11-22 00:20:09,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-22 00:20:09,643 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:20:09,643 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:20:09,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 00:20:09,644 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-22 00:20:09,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:20:09,645 INFO L85 PathProgramCache]: Analyzing trace with hash 1043950612, now seen corresponding path program 1 times [2022-11-22 00:20:09,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:20:09,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689517588] [2022-11-22 00:20:09,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:20:09,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:20:09,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:20:09,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:20:09,722 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:20:09,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689517588] [2022-11-22 00:20:09,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689517588] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:20:09,723 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:20:09,723 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 00:20:09,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233194442] [2022-11-22 00:20:09,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:20:09,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 00:20:09,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:20:09,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 00:20:09,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 00:20:09,725 INFO L87 Difference]: Start difference. First operand 71 states and 78 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:20:09,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:20:09,803 INFO L93 Difference]: Finished difference Result 71 states and 78 transitions. [2022-11-22 00:20:09,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 00:20:09,803 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 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 18 [2022-11-22 00:20:09,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:20:09,804 INFO L225 Difference]: With dead ends: 71 [2022-11-22 00:20:09,804 INFO L226 Difference]: Without dead ends: 67 [2022-11-22 00:20:09,805 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 00:20:09,806 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 28 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:20:09,806 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 21 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 00:20:09,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-11-22 00:20:09,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2022-11-22 00:20:09,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 63 states have (on average 1.1746031746031746) internal successors, (74), 66 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:20:09,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 74 transitions. [2022-11-22 00:20:09,822 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 74 transitions. Word has length 18 [2022-11-22 00:20:09,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:20:09,822 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 74 transitions. [2022-11-22 00:20:09,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:20:09,823 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 74 transitions. [2022-11-22 00:20:09,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-22 00:20:09,825 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:20:09,826 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] [2022-11-22 00:20:09,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 00:20:09,826 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-22 00:20:09,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:20:09,827 INFO L85 PathProgramCache]: Analyzing trace with hash 830810215, now seen corresponding path program 1 times [2022-11-22 00:20:09,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:20:09,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272153686] [2022-11-22 00:20:09,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:20:09,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:20:09,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:20:09,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:20:09,971 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:20:09,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272153686] [2022-11-22 00:20:09,972 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272153686] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:20:09,972 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:20:09,972 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 00:20:09,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71502785] [2022-11-22 00:20:09,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:20:09,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 00:20:09,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:20:09,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 00:20:09,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-22 00:20:09,974 INFO L87 Difference]: Start difference. First operand 67 states and 74 transitions. Second operand has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:20:10,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:20:10,095 INFO L93 Difference]: Finished difference Result 101 states and 111 transitions. [2022-11-22 00:20:10,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 00:20:10,096 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 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 23 [2022-11-22 00:20:10,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:20:10,097 INFO L225 Difference]: With dead ends: 101 [2022-11-22 00:20:10,097 INFO L226 Difference]: Without dead ends: 97 [2022-11-22 00:20:10,098 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-22 00:20:10,098 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 63 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:20:10,099 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 33 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 00:20:10,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2022-11-22 00:20:10,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 93. [2022-11-22 00:20:10,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 89 states have (on average 1.1573033707865168) internal successors, (103), 92 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:20:10,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 103 transitions. [2022-11-22 00:20:10,115 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 103 transitions. Word has length 23 [2022-11-22 00:20:10,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:20:10,115 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 103 transitions. [2022-11-22 00:20:10,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:20:10,116 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 103 transitions. [2022-11-22 00:20:10,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-22 00:20:10,117 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:20:10,117 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-22 00:20:10,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-22 00:20:10,117 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-22 00:20:10,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:20:10,118 INFO L85 PathProgramCache]: Analyzing trace with hash -819026521, now seen corresponding path program 1 times [2022-11-22 00:20:10,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:20:10,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975930212] [2022-11-22 00:20:10,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:20:10,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:20:10,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:20:10,259 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:20:10,260 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:20:10,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975930212] [2022-11-22 00:20:10,260 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975930212] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 00:20:10,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1459529544] [2022-11-22 00:20:10,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:20:10,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:20:10,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8119d5fb-5bb5-497c-9d9e-61497928d957/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:20:10,265 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8119d5fb-5bb5-497c-9d9e-61497928d957/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:20:10,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8119d5fb-5bb5-497c-9d9e-61497928d957/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 00:20:10,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:20:10,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-22 00:20:10,397 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:20:10,482 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:20:10,482 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 00:20:10,567 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:20:10,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1459529544] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 00:20:10,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [768520145] [2022-11-22 00:20:10,588 INFO L159 IcfgInterpreter]: Started Sifa with 25 locations of interest [2022-11-22 00:20:10,588 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 00:20:10,592 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 00:20:10,609 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 00:20:10,609 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 00:20:14,721 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 00:20:20,911 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [768520145] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:20:20,911 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-22 00:20:20,912 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [5, 5, 5] total 30 [2022-11-22 00:20:20,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894102537] [2022-11-22 00:20:20,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:20:20,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-22 00:20:20,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:20:20,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-22 00:20:20,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=191, Invalid=739, Unknown=0, NotChecked=0, Total=930 [2022-11-22 00:20:20,915 INFO L87 Difference]: Start difference. First operand 93 states and 103 transitions. Second operand has 22 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 21 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:20:31,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:20:31,571 INFO L93 Difference]: Finished difference Result 136 states and 150 transitions. [2022-11-22 00:20:31,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-11-22 00:20:31,577 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 21 states have internal predecessors, (25), 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 30 [2022-11-22 00:20:31,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:20:31,578 INFO L225 Difference]: With dead ends: 136 [2022-11-22 00:20:31,579 INFO L226 Difference]: Without dead ends: 134 [2022-11-22 00:20:31,580 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 62 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 963 ImplicationChecksByTransitivity, 15.4s TimeCoverageRelationStatistics Valid=431, Invalid=2325, Unknown=0, NotChecked=0, Total=2756 [2022-11-22 00:20:31,580 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 74 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 723 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 770 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 723 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-22 00:20:31,581 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 53 Invalid, 770 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 723 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-22 00:20:31,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2022-11-22 00:20:31,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 106. [2022-11-22 00:20:31,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 102 states have (on average 1.1666666666666667) internal successors, (119), 105 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:20:31,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 119 transitions. [2022-11-22 00:20:31,627 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 119 transitions. Word has length 30 [2022-11-22 00:20:31,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:20:31,628 INFO L495 AbstractCegarLoop]: Abstraction has 106 states and 119 transitions. [2022-11-22 00:20:31,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 21 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:20:31,629 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 119 transitions. [2022-11-22 00:20:31,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-22 00:20:31,632 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:20:31,632 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] [2022-11-22 00:20:31,651 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8119d5fb-5bb5-497c-9d9e-61497928d957/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-22 00:20:31,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8119d5fb-5bb5-497c-9d9e-61497928d957/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:20:31,842 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-22 00:20:31,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:20:31,842 INFO L85 PathProgramCache]: Analyzing trace with hash -2105234546, now seen corresponding path program 1 times [2022-11-22 00:20:31,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:20:31,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349304659] [2022-11-22 00:20:31,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:20:31,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:20:31,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:20:31,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:20:31,971 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:20:31,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349304659] [2022-11-22 00:20:31,972 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349304659] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:20:31,972 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:20:31,972 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 00:20:31,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713119708] [2022-11-22 00:20:31,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:20:31,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 00:20:31,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:20:31,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 00:20:31,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-22 00:20:31,974 INFO L87 Difference]: Start difference. First operand 106 states and 119 transitions. Second operand has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:20:32,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:20:32,126 INFO L93 Difference]: Finished difference Result 163 states and 182 transitions. [2022-11-22 00:20:32,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 00:20:32,127 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 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 30 [2022-11-22 00:20:32,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:20:32,128 INFO L225 Difference]: With dead ends: 163 [2022-11-22 00:20:32,128 INFO L226 Difference]: Without dead ends: 159 [2022-11-22 00:20:32,129 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-22 00:20:32,129 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 111 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:20:32,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 39 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 00:20:32,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2022-11-22 00:20:32,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 146. [2022-11-22 00:20:32,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 142 states have (on average 1.1549295774647887) internal successors, (164), 145 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:20:32,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 164 transitions. [2022-11-22 00:20:32,148 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 164 transitions. Word has length 30 [2022-11-22 00:20:32,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:20:32,149 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 164 transitions. [2022-11-22 00:20:32,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:20:32,149 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 164 transitions. [2022-11-22 00:20:32,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-11-22 00:20:32,151 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:20:32,151 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] [2022-11-22 00:20:32,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-22 00:20:32,151 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-22 00:20:32,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:20:32,152 INFO L85 PathProgramCache]: Analyzing trace with hash -1587241879, now seen corresponding path program 1 times [2022-11-22 00:20:32,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:20:32,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867240422] [2022-11-22 00:20:32,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:20:32,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:20:32,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:20:32,247 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:20:32,248 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:20:32,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867240422] [2022-11-22 00:20:32,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867240422] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 00:20:32,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [882681756] [2022-11-22 00:20:32,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:20:32,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:20:32,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8119d5fb-5bb5-497c-9d9e-61497928d957/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:20:32,250 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8119d5fb-5bb5-497c-9d9e-61497928d957/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:20:32,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8119d5fb-5bb5-497c-9d9e-61497928d957/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-22 00:20:32,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:20:32,334 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-22 00:20:32,336 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:20:32,420 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:20:32,420 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 00:20:32,528 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:20:32,529 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [882681756] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 00:20:32,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1463625621] [2022-11-22 00:20:32,536 INFO L159 IcfgInterpreter]: Started Sifa with 33 locations of interest [2022-11-22 00:20:32,537 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 00:20:32,537 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 00:20:32,537 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 00:20:32,537 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 00:20:33,304 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 00:20:39,219 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1463625621] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:20:39,219 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-22 00:20:39,220 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [6, 6, 6] total 40 [2022-11-22 00:20:39,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418917619] [2022-11-22 00:20:39,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:20:39,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-11-22 00:20:39,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:20:39,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-11-22 00:20:39,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=274, Invalid=1366, Unknown=0, NotChecked=0, Total=1640 [2022-11-22 00:20:39,222 INFO L87 Difference]: Start difference. First operand 146 states and 164 transitions. Second operand has 30 states, 29 states have (on average 1.1379310344827587) internal successors, (33), 29 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:20:41,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:20:41,990 INFO L93 Difference]: Finished difference Result 210 states and 236 transitions. [2022-11-22 00:20:41,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-22 00:20:41,991 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 1.1379310344827587) internal successors, (33), 29 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-11-22 00:20:41,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:20:41,992 INFO L225 Difference]: With dead ends: 210 [2022-11-22 00:20:41,992 INFO L226 Difference]: Without dead ends: 207 [2022-11-22 00:20:41,994 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 73 SyntacticMatches, 3 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1008 ImplicationChecksByTransitivity, 7.8s TimeCoverageRelationStatistics Valid=363, Invalid=2087, Unknown=0, NotChecked=0, Total=2450 [2022-11-22 00:20:41,994 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 72 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 640 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-22 00:20:41,995 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 70 Invalid, 656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 640 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-22 00:20:41,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2022-11-22 00:20:42,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 139. [2022-11-22 00:20:42,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 136 states have (on average 1.1691176470588236) internal successors, (159), 138 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:20:42,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 159 transitions. [2022-11-22 00:20:42,031 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 159 transitions. Word has length 37 [2022-11-22 00:20:42,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:20:42,031 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 159 transitions. [2022-11-22 00:20:42,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 1.1379310344827587) internal successors, (33), 29 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:20:42,032 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 159 transitions. [2022-11-22 00:20:42,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-11-22 00:20:42,033 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:20:42,033 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-22 00:20:42,047 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8119d5fb-5bb5-497c-9d9e-61497928d957/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-22 00:20:42,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8119d5fb-5bb5-497c-9d9e-61497928d957/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:20:42,240 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-22 00:20:42,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:20:42,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1049860256, now seen corresponding path program 1 times [2022-11-22 00:20:42,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:20:42,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068748756] [2022-11-22 00:20:42,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:20:42,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:20:42,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:20:42,336 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:20:42,336 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:20:42,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068748756] [2022-11-22 00:20:42,337 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068748756] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 00:20:42,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [571068968] [2022-11-22 00:20:42,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:20:42,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:20:42,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8119d5fb-5bb5-497c-9d9e-61497928d957/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:20:42,339 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8119d5fb-5bb5-497c-9d9e-61497928d957/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:20:42,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8119d5fb-5bb5-497c-9d9e-61497928d957/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-22 00:20:42,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:20:42,407 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-22 00:20:42,409 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:20:42,462 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:20:42,462 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 00:20:42,563 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:20:42,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [571068968] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 00:20:42,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [100878854] [2022-11-22 00:20:42,566 INFO L159 IcfgInterpreter]: Started Sifa with 32 locations of interest [2022-11-22 00:20:42,566 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 00:20:42,566 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 00:20:42,567 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 00:20:42,567 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 00:20:46,205 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 00:20:55,455 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [100878854] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:20:55,455 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-22 00:20:55,455 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [6, 6, 6] total 37 [2022-11-22 00:20:55,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051913636] [2022-11-22 00:20:55,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:20:55,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-11-22 00:20:55,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:20:55,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-11-22 00:20:55,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=296, Invalid=1110, Unknown=0, NotChecked=0, Total=1406 [2022-11-22 00:20:55,458 INFO L87 Difference]: Start difference. First operand 139 states and 159 transitions. Second operand has 27 states, 26 states have (on average 1.2307692307692308) internal successors, (32), 26 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:21:10,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:21:10,671 INFO L93 Difference]: Finished difference Result 193 states and 219 transitions. [2022-11-22 00:21:10,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-11-22 00:21:10,672 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 1.2307692307692308) internal successors, (32), 26 states have internal predecessors, (32), 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 37 [2022-11-22 00:21:10,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:21:10,673 INFO L225 Difference]: With dead ends: 193 [2022-11-22 00:21:10,673 INFO L226 Difference]: Without dead ends: 191 [2022-11-22 00:21:10,675 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 76 SyntacticMatches, 3 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1376 ImplicationChecksByTransitivity, 22.6s TimeCoverageRelationStatistics Valid=536, Invalid=3004, Unknown=0, NotChecked=0, Total=3540 [2022-11-22 00:21:10,676 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 80 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 1029 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 1078 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1029 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-22 00:21:10,676 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 102 Invalid, 1078 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1029 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-22 00:21:10,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2022-11-22 00:21:10,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 142. [2022-11-22 00:21:10,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 139 states have (on average 1.1798561151079137) internal successors, (164), 141 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:21:10,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 164 transitions. [2022-11-22 00:21:10,703 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 164 transitions. Word has length 37 [2022-11-22 00:21:10,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:21:10,704 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 164 transitions. [2022-11-22 00:21:10,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 1.2307692307692308) internal successors, (32), 26 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:21:10,704 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 164 transitions. [2022-11-22 00:21:10,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-22 00:21:10,705 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:21:10,705 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:21:10,718 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8119d5fb-5bb5-497c-9d9e-61497928d957/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-22 00:21:10,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8119d5fb-5bb5-497c-9d9e-61497928d957/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:21:10,911 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-22 00:21:10,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:21:10,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1405280403, now seen corresponding path program 1 times [2022-11-22 00:21:10,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:21:10,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804914766] [2022-11-22 00:21:10,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:21:10,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:21:10,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:21:11,047 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:21:11,047 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:21:11,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804914766] [2022-11-22 00:21:11,048 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804914766] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 00:21:11,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1128703469] [2022-11-22 00:21:11,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:21:11,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:21:11,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8119d5fb-5bb5-497c-9d9e-61497928d957/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:21:11,060 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8119d5fb-5bb5-497c-9d9e-61497928d957/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:21:11,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8119d5fb-5bb5-497c-9d9e-61497928d957/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-22 00:21:11,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:21:11,134 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-22 00:21:11,135 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:21:11,191 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:21:11,191 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 00:21:11,283 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:21:11,284 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1128703469] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 00:21:11,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1826006675] [2022-11-22 00:21:11,291 INFO L159 IcfgInterpreter]: Started Sifa with 25 locations of interest [2022-11-22 00:21:11,291 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 00:21:11,291 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 00:21:11,291 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 00:21:11,292 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 00:21:13,180 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 00:21:17,892 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3457#(and (<= 0 |ULTIMATE.start_main_~__tmp_5~0#1|) (<= |ULTIMATE.start_main_~__tmp_6~0#1| 1) (< 2147483646 |ULTIMATE.start_main_~main__t~0#1|) (<= 0 (+ |ULTIMATE.start_main_~main____CPAchecker_TMP_0~0#1| 2147483648)) (<= 0 |ULTIMATE.start_main_~main____CPAchecker_TMP_2~0#1|) (<= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~0#1|) (<= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~4#1|) (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~1#1| 1) (<= 0 (+ |ULTIMATE.start_main_~main____CPAchecker_TMP_4~0#1| 2147483648)) (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~4#1| 1) (<= 0 (+ ~__tmp_259_0~0 2147483648)) (<= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~1#1|) (<= |ULTIMATE.start_main_~main__tagbuf_len~0#1| 2147483646) (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~0#1| 1) (<= |ULTIMATE.start_main_~__tmp_5~0#1| 1) (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~5#1| 1) (<= 1 |ULTIMATE.start_main_~main____CPAchecker_TMP_5~0#1|) (<= |ULTIMATE.start_main_~main____CPAchecker_TMP_3~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_main_~main____CPAchecker_TMP_3~0#1| 2147483648)) (<= |ULTIMATE.start_main_~main__t~0#1| 2147483647) (<= |ULTIMATE.start_main_~main____CPAchecker_TMP_0~0#1| 2147483647) (<= 0 |ULTIMATE.start_main_~__tmp_6~0#1|) (= ~__return_305~0 0) (<= |ULTIMATE.start_main_~__tmp_1~0#1| 1) (<= |ULTIMATE.start_main_~main____CPAchecker_TMP_4~0#1| 2147483647) (<= 0 |ULTIMATE.start_main_~__tmp_1~0#1|) (<= |ULTIMATE.start_main_~main____CPAchecker_TMP_2~0#1| 0) (<= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~5#1|) (<= 0 |ULTIMATE.start_main_~main__tagbuf_len~0#1|) (= |#NULL.offset| 0) (<= |ULTIMATE.start_main_~__tmp_2~0#1| 1) (<= ~__tmp_259_0~0 2147483647) (<= 0 |#StackHeapBarrier|) (= ~__return_main~0 0) (<= |ULTIMATE.start_main_~main____CPAchecker_TMP_5~0#1| 2147483647) (= ~__tmp_383_0~0 0) (= |#NULL.base| 0) (<= 0 |ULTIMATE.start_main_~__tmp_2~0#1|))' at error location [2022-11-22 00:21:17,892 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 00:21:17,892 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 00:21:17,892 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2022-11-22 00:21:17,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116445116] [2022-11-22 00:21:17,892 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 00:21:17,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-22 00:21:17,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:21:17,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-22 00:21:17,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=240, Invalid=950, Unknown=0, NotChecked=0, Total=1190 [2022-11-22 00:21:17,899 INFO L87 Difference]: Start difference. First operand 142 states and 164 transitions. Second operand has 13 states, 12 states have (on average 7.083333333333333) internal successors, (85), 13 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:21:18,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:21:18,335 INFO L93 Difference]: Finished difference Result 524 states and 611 transitions. [2022-11-22 00:21:18,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-22 00:21:18,335 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 7.083333333333333) internal successors, (85), 13 states have internal predecessors, (85), 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 38 [2022-11-22 00:21:18,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:21:18,338 INFO L225 Difference]: With dead ends: 524 [2022-11-22 00:21:18,338 INFO L226 Difference]: Without dead ends: 521 [2022-11-22 00:21:18,339 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 527 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=240, Invalid=950, Unknown=0, NotChecked=0, Total=1190 [2022-11-22 00:21:18,339 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 512 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 512 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 00:21:18,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [512 Valid, 80 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 00:21:18,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2022-11-22 00:21:18,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 382. [2022-11-22 00:21:18,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 379 states have (on average 1.1451187335092348) internal successors, (434), 381 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:21:18,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 434 transitions. [2022-11-22 00:21:18,403 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 434 transitions. Word has length 38 [2022-11-22 00:21:18,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:21:18,404 INFO L495 AbstractCegarLoop]: Abstraction has 382 states and 434 transitions. [2022-11-22 00:21:18,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 7.083333333333333) internal successors, (85), 13 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:21:18,404 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 434 transitions. [2022-11-22 00:21:18,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-22 00:21:18,406 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:21:18,407 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:21:18,413 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8119d5fb-5bb5-497c-9d9e-61497928d957/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-22 00:21:18,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8119d5fb-5bb5-497c-9d9e-61497928d957/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-22 00:21:18,613 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-22 00:21:18,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:21:18,613 INFO L85 PathProgramCache]: Analyzing trace with hash 1021909275, now seen corresponding path program 1 times [2022-11-22 00:21:18,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:21:18,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832595410] [2022-11-22 00:21:18,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:21:18,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:21:18,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:21:18,930 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:21:18,930 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:21:18,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832595410] [2022-11-22 00:21:18,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832595410] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 00:21:18,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1554480277] [2022-11-22 00:21:18,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:21:18,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:21:18,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8119d5fb-5bb5-497c-9d9e-61497928d957/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:21:18,932 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8119d5fb-5bb5-497c-9d9e-61497928d957/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:21:18,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8119d5fb-5bb5-497c-9d9e-61497928d957/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-22 00:21:19,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:21:19,027 INFO L263 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-22 00:21:19,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:21:19,143 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:21:19,143 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 00:21:19,412 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:21:19,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1554480277] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 00:21:19,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [746859733] [2022-11-22 00:21:19,417 INFO L159 IcfgInterpreter]: Started Sifa with 34 locations of interest [2022-11-22 00:21:19,418 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 00:21:19,419 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 00:21:19,419 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 00:21:19,419 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 00:21:22,294 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 00:21:32,416 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5001#(and (<= 0 |ULTIMATE.start_main_~__tmp_5~0#1|) (<= |ULTIMATE.start_main_~__tmp_9~0#1| 1) (<= |ULTIMATE.start_main_~__tmp_6~0#1| 1) (< 2147483646 |ULTIMATE.start_main_~main__t~0#1|) (<= 0 (+ |ULTIMATE.start_main_~main____CPAchecker_TMP_0~0#1| 2147483648)) (<= ~__tmp_383_0~0 0) (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~9#1| 1) (<= |ULTIMATE.start_main_~main____CPAchecker_TMP_0~1#1| 2147483647) (<= 0 |ULTIMATE.start_main_~__tmp_17~0#1|) (<= 0 ~__tmp_383_0~0) (<= 0 |ULTIMATE.start_main_~__tmp_18~0#1|) (<= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~16#1|) (<= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~4#1|) (<= 0 (+ |ULTIMATE.start_main_~main____CPAchecker_TMP_4~0#1| 2147483648)) (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~4#1| 1) (<= |ULTIMATE.start_main_~__tmp_14~0#1| 1) (<= 0 |ULTIMATE.start_main_~__tmp_9~0#1|) (<= 0 |ULTIMATE.start_main_~__tmp_14~0#1|) (<= 0 (+ ~__tmp_259_0~0 2147483648)) (<= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~9#1|) (<= |ULTIMATE.start_main_~main__tagbuf_len~0#1| 2147483646) (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~8#1| 1) (<= |ULTIMATE.start_main_~__tmp_10~0#1| 1) (<= |ULTIMATE.start_main_~__tmp_5~0#1| 1) (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~5#1| 1) (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~13#1| 1) (<= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~13#1|) (<= |ULTIMATE.start_main_~main____CPAchecker_TMP_2~0#1| 2147483645) (<= |ULTIMATE.start_main_~__tmp_18~0#1| 1) (<= |ULTIMATE.start_main_~main____CPAchecker_TMP_3~0#1| 2147483647) (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~12#1| 1) (<= 0 (+ |ULTIMATE.start_main_~main____CPAchecker_TMP_3~0#1| 2147483648)) (<= |ULTIMATE.start_main_~main__t~0#1| 2147483647) (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~16#1| 1) (= |ULTIMATE.start_main_~main__t~0#1| |ULTIMATE.start_main_~main____CPAchecker_TMP_7~0#1|) (not (= |ULTIMATE.start_main_~__VERIFIER_assert__cond~9#1| 0)) (<= |ULTIMATE.start_main_~main____CPAchecker_TMP_0~0#1| 2147483647) (<= 0 |ULTIMATE.start_main_~__tmp_6~0#1|) (= ~__return_305~0 0) (<= 1 |ULTIMATE.start_main_~main____CPAchecker_TMP_2~0#1|) (<= |ULTIMATE.start_main_~main____CPAchecker_TMP_4~0#1| 2147483647) (<= |ULTIMATE.start_main_~main____CPAchecker_TMP_5~0#1| 2147483646) (<= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~5#1|) (<= 0 |ULTIMATE.start_main_~main____CPAchecker_TMP_1~0#1|) (<= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~17#1|) (<= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~8#1|) (<= |ULTIMATE.start_main_~__tmp_17~0#1| 1) (<= 0 |ULTIMATE.start_main_~main__tagbuf_len~0#1|) (<= 0 |ULTIMATE.start_main_~__tmp_13~0#1|) (= |#NULL.offset| 0) (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~17#1| 1) (<= 2 |ULTIMATE.start_main_~main____CPAchecker_TMP_5~0#1|) (<= 0 (+ |ULTIMATE.start_main_~main____CPAchecker_TMP_0~1#1| 2147483648)) (<= |ULTIMATE.start_main_~__tmp_13~0#1| 1) (<= ~__tmp_259_0~0 2147483647) (<= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~12#1|) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~main____CPAchecker_TMP_1~0#1| 2147483644) (= ~__return_main~0 0) (<= 0 |ULTIMATE.start_main_~__tmp_10~0#1|) (= |#NULL.base| 0))' at error location [2022-11-22 00:21:32,416 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 00:21:32,416 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 00:21:32,416 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 24 [2022-11-22 00:21:32,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184951831] [2022-11-22 00:21:32,417 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 00:21:32,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-22 00:21:32,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:21:32,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-22 00:21:32,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=538, Invalid=2432, Unknown=0, NotChecked=0, Total=2970 [2022-11-22 00:21:32,419 INFO L87 Difference]: Start difference. First operand 382 states and 434 transitions. Second operand has 25 states, 24 states have (on average 6.708333333333333) internal successors, (161), 25 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:21:33,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:21:33,425 INFO L93 Difference]: Finished difference Result 1106 states and 1289 transitions. [2022-11-22 00:21:33,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-22 00:21:33,425 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 6.708333333333333) internal successors, (161), 25 states have internal predecessors, (161), 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 76 [2022-11-22 00:21:33,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:21:33,429 INFO L225 Difference]: With dead ends: 1106 [2022-11-22 00:21:33,430 INFO L226 Difference]: Without dead ends: 1103 [2022-11-22 00:21:33,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 180 SyntacticMatches, 5 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1652 ImplicationChecksByTransitivity, 10.3s TimeCoverageRelationStatistics Valid=538, Invalid=2432, Unknown=0, NotChecked=0, Total=2970 [2022-11-22 00:21:33,432 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 1354 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 566 mSolverCounterSat, 227 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1354 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 793 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 227 IncrementalHoareTripleChecker+Valid, 566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-22 00:21:33,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1354 Valid, 152 Invalid, 793 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [227 Valid, 566 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-22 00:21:33,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1103 states. [2022-11-22 00:21:33,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1103 to 862. [2022-11-22 00:21:33,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 862 states, 859 states have (on average 1.1338766006984866) internal successors, (974), 861 states have internal predecessors, (974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:21:33,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 862 states to 862 states and 974 transitions. [2022-11-22 00:21:33,559 INFO L78 Accepts]: Start accepts. Automaton has 862 states and 974 transitions. Word has length 76 [2022-11-22 00:21:33,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:21:33,560 INFO L495 AbstractCegarLoop]: Abstraction has 862 states and 974 transitions. [2022-11-22 00:21:33,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 6.708333333333333) internal successors, (161), 25 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:21:33,560 INFO L276 IsEmpty]: Start isEmpty. Operand 862 states and 974 transitions. [2022-11-22 00:21:33,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-11-22 00:21:33,563 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:21:33,564 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:21:33,571 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8119d5fb-5bb5-497c-9d9e-61497928d957/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-22 00:21:33,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8119d5fb-5bb5-497c-9d9e-61497928d957/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-22 00:21:33,775 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-22 00:21:33,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:21:33,775 INFO L85 PathProgramCache]: Analyzing trace with hash 1424713051, now seen corresponding path program 2 times [2022-11-22 00:21:33,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:21:33,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777360396] [2022-11-22 00:21:33,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:21:33,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:21:33,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:21:34,710 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 0 proven. 581 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:21:34,711 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:21:34,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777360396] [2022-11-22 00:21:34,711 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777360396] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 00:21:34,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1376235487] [2022-11-22 00:21:34,711 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-22 00:21:34,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:21:34,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8119d5fb-5bb5-497c-9d9e-61497928d957/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:21:34,716 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8119d5fb-5bb5-497c-9d9e-61497928d957/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:21:34,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8119d5fb-5bb5-497c-9d9e-61497928d957/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-22 00:21:34,800 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-22 00:21:34,800 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 00:21:34,802 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-22 00:21:34,812 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:21:35,152 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 18 proven. 18 refuted. 0 times theorem prover too weak. 545 trivial. 0 not checked. [2022-11-22 00:21:35,152 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 00:21:35,510 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 545 trivial. 0 not checked. [2022-11-22 00:21:35,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1376235487] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 00:21:35,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1718961848] [2022-11-22 00:21:35,517 INFO L159 IcfgInterpreter]: Started Sifa with 34 locations of interest [2022-11-22 00:21:35,521 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 00:21:35,522 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 00:21:35,522 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 00:21:35,523 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 00:21:38,536 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 00:21:50,238 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '8254#(and (<= 0 |ULTIMATE.start_main_~__tmp_5~0#1|) (<= |ULTIMATE.start_main_~__tmp_9~0#1| 1) (<= |ULTIMATE.start_main_~__tmp_6~0#1| 1) (< 2147483646 |ULTIMATE.start_main_~main__t~0#1|) (<= 0 (+ |ULTIMATE.start_main_~main____CPAchecker_TMP_0~0#1| 2147483648)) (<= ~__tmp_383_0~0 0) (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~9#1| 1) (<= |ULTIMATE.start_main_~main____CPAchecker_TMP_0~1#1| 2147483647) (<= 0 |ULTIMATE.start_main_~__tmp_17~0#1|) (<= 0 ~__tmp_383_0~0) (<= 0 |ULTIMATE.start_main_~__tmp_18~0#1|) (<= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~16#1|) (<= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~4#1|) (<= 0 (+ |ULTIMATE.start_main_~main____CPAchecker_TMP_4~0#1| 2147483648)) (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~4#1| 1) (<= |ULTIMATE.start_main_~__tmp_14~0#1| 1) (<= 0 |ULTIMATE.start_main_~__tmp_9~0#1|) (<= 0 |ULTIMATE.start_main_~__tmp_14~0#1|) (<= 0 (+ ~__tmp_259_0~0 2147483648)) (<= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~9#1|) (<= |ULTIMATE.start_main_~main__tagbuf_len~0#1| 2147483646) (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~8#1| 1) (<= |ULTIMATE.start_main_~__tmp_10~0#1| 1) (<= |ULTIMATE.start_main_~__tmp_5~0#1| 1) (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~5#1| 1) (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~13#1| 1) (<= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~13#1|) (<= |ULTIMATE.start_main_~main____CPAchecker_TMP_2~0#1| 2147483645) (<= |ULTIMATE.start_main_~__tmp_18~0#1| 1) (<= |ULTIMATE.start_main_~main____CPAchecker_TMP_3~0#1| 2147483647) (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~12#1| 1) (<= 0 (+ |ULTIMATE.start_main_~main____CPAchecker_TMP_3~0#1| 2147483648)) (<= |ULTIMATE.start_main_~main__t~0#1| 2147483647) (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~16#1| 1) (= |ULTIMATE.start_main_~main__t~0#1| |ULTIMATE.start_main_~main____CPAchecker_TMP_7~0#1|) (not (= |ULTIMATE.start_main_~__VERIFIER_assert__cond~9#1| 0)) (<= |ULTIMATE.start_main_~main____CPAchecker_TMP_0~0#1| 2147483647) (<= 0 |ULTIMATE.start_main_~__tmp_6~0#1|) (= ~__return_305~0 0) (<= 1 |ULTIMATE.start_main_~main____CPAchecker_TMP_2~0#1|) (<= |ULTIMATE.start_main_~main____CPAchecker_TMP_4~0#1| 2147483647) (<= |ULTIMATE.start_main_~main____CPAchecker_TMP_5~0#1| 2147483646) (<= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~5#1|) (<= 0 |ULTIMATE.start_main_~main____CPAchecker_TMP_1~0#1|) (<= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~17#1|) (<= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~8#1|) (<= |ULTIMATE.start_main_~__tmp_17~0#1| 1) (<= 0 |ULTIMATE.start_main_~main__tagbuf_len~0#1|) (<= 0 |ULTIMATE.start_main_~__tmp_13~0#1|) (= |#NULL.offset| 0) (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~17#1| 1) (<= 2 |ULTIMATE.start_main_~main____CPAchecker_TMP_5~0#1|) (<= 0 (+ |ULTIMATE.start_main_~main____CPAchecker_TMP_0~1#1| 2147483648)) (<= |ULTIMATE.start_main_~__tmp_13~0#1| 1) (<= ~__tmp_259_0~0 2147483647) (<= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~12#1|) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~main____CPAchecker_TMP_1~0#1| 2147483644) (= ~__return_main~0 0) (<= 0 |ULTIMATE.start_main_~__tmp_10~0#1|) (= |#NULL.base| 0))' at error location [2022-11-22 00:21:50,238 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 00:21:50,238 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 00:21:50,238 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 5, 5] total 33 [2022-11-22 00:21:50,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584624746] [2022-11-22 00:21:50,238 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 00:21:50,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-22 00:21:50,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:21:50,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-22 00:21:50,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=833, Invalid=3327, Unknown=0, NotChecked=0, Total=4160 [2022-11-22 00:21:50,241 INFO L87 Difference]: Start difference. First operand 862 states and 974 transitions. Second operand has 34 states, 33 states have (on average 7.03030303030303) internal successors, (232), 34 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:21:55,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:21:55,201 INFO L93 Difference]: Finished difference Result 1250 states and 1423 transitions. [2022-11-22 00:21:55,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2022-11-22 00:21:55,201 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 7.03030303030303) internal successors, (232), 34 states have internal predecessors, (232), 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 154 [2022-11-22 00:21:55,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:21:55,203 INFO L225 Difference]: With dead ends: 1250 [2022-11-22 00:21:55,203 INFO L226 Difference]: Without dead ends: 186 [2022-11-22 00:21:55,211 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 582 GetRequests, 419 SyntacticMatches, 2 SemanticMatches, 161 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9821 ImplicationChecksByTransitivity, 15.7s TimeCoverageRelationStatistics Valid=5664, Invalid=20742, Unknown=0, NotChecked=0, Total=26406 [2022-11-22 00:21:55,212 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 4644 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 676 mSolverCounterSat, 429 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4644 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 1105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 429 IncrementalHoareTripleChecker+Valid, 676 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-22 00:21:55,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4644 Valid, 178 Invalid, 1105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [429 Valid, 676 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-22 00:21:55,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2022-11-22 00:21:55,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 186. [2022-11-22 00:21:55,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 185 states have (on average 1.0054054054054054) internal successors, (186), 185 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:21:55,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 186 transitions. [2022-11-22 00:21:55,232 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 186 transitions. Word has length 154 [2022-11-22 00:21:55,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:21:55,233 INFO L495 AbstractCegarLoop]: Abstraction has 186 states and 186 transitions. [2022-11-22 00:21:55,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 7.03030303030303) internal successors, (232), 34 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:21:55,233 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 186 transitions. [2022-11-22 00:21:55,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-22 00:21:55,235 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:21:55,235 INFO L195 NwaCegarLoop]: trace histogram [26, 25, 25, 25, 25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:21:55,243 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8119d5fb-5bb5-497c-9d9e-61497928d957/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-22 00:21:55,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8119d5fb-5bb5-497c-9d9e-61497928d957/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:21:55,441 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-22 00:21:55,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:21:55,441 INFO L85 PathProgramCache]: Analyzing trace with hash -1575861059, now seen corresponding path program 1 times [2022-11-22 00:21:55,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:21:55,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129306149] [2022-11-22 00:21:55,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:21:55,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:21:55,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:21:56,588 INFO L134 CoverageAnalysis]: Checked inductivity of 2150 backedges. 0 proven. 2150 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:21:56,588 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:21:56,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129306149] [2022-11-22 00:21:56,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129306149] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 00:21:56,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1957315658] [2022-11-22 00:21:56,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:21:56,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:21:56,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8119d5fb-5bb5-497c-9d9e-61497928d957/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:21:56,592 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8119d5fb-5bb5-497c-9d9e-61497928d957/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:21:56,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8119d5fb-5bb5-497c-9d9e-61497928d957/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-22 00:21:56,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:21:56,774 INFO L263 TraceCheckSpWp]: Trace formula consists of 741 conjuncts, 27 conjunts are in the unsatisfiable core [2022-11-22 00:21:56,778 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:21:57,043 INFO L134 CoverageAnalysis]: Checked inductivity of 2150 backedges. 0 proven. 2150 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:21:57,043 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 00:21:58,187 INFO L134 CoverageAnalysis]: Checked inductivity of 2150 backedges. 0 proven. 2150 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:21:58,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1957315658] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 00:21:58,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1743330817] [2022-11-22 00:21:58,189 INFO L159 IcfgInterpreter]: Started Sifa with 16 locations of interest [2022-11-22 00:21:58,189 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 00:21:58,190 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 00:21:58,190 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 00:21:58,190 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 00:21:58,566 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 00:22:00,226 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '11301#(and (< 2147483646 |ULTIMATE.start_main_~main__t~0#1|) (<= ~__tmp_383_0~0 0) (<= 0 |#NULL.base|) (<= 0 ~__tmp_383_0~0) (<= |ULTIMATE.start_main_~__tmp_14~0#1| 1) (<= 0 |ULTIMATE.start_main_~__tmp_14~0#1|) (<= |ULTIMATE.start_main_~main__tagbuf_len~0#1| 2147483646) (<= ~__return_305~0 0) (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~13#1| 1) (<= 0 ~__tmp_259_0~0) (<= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~13#1|) (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~12#1| 1) (<= ~__return_main~0 0) (= |ULTIMATE.start_main_~main__t~0#1| |ULTIMATE.start_main_~main____CPAchecker_TMP_1~0#1|) (<= 0 ~__return_305~0) (<= |#NULL.base| 0) (<= 0 |ULTIMATE.start_main_~main__tagbuf_len~0#1|) (<= 0 |ULTIMATE.start_main_~__tmp_13~0#1|) (= ~__tmp_383_0~0 |ULTIMATE.start_main_~main____CPAchecker_TMP_0~0#1|) (<= 0 ~__return_main~0) (<= ~__tmp_259_0~0 0) (<= 0 |#NULL.offset|) (<= |ULTIMATE.start_main_~__tmp_13~0#1| 1) (<= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~12#1|) (<= 0 |#StackHeapBarrier|))' at error location [2022-11-22 00:22:00,226 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 00:22:00,226 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 00:22:00,227 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27, 27] total 54 [2022-11-22 00:22:00,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708243853] [2022-11-22 00:22:00,227 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 00:22:00,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2022-11-22 00:22:00,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:22:00,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2022-11-22 00:22:00,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1809, Invalid=2883, Unknown=0, NotChecked=0, Total=4692 [2022-11-22 00:22:00,231 INFO L87 Difference]: Start difference. First operand 186 states and 186 transitions. Second operand has 55 states, 54 states have (on average 7.018518518518518) internal successors, (379), 55 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:22:00,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:22:00,708 INFO L93 Difference]: Finished difference Result 376 states and 402 transitions. [2022-11-22 00:22:00,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-11-22 00:22:00,709 INFO L78 Accepts]: Start accepts. Automaton has has 55 states, 54 states have (on average 7.018518518518518) internal successors, (379), 55 states have internal predecessors, (379), 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 185 [2022-11-22 00:22:00,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:22:00,710 INFO L225 Difference]: With dead ends: 376 [2022-11-22 00:22:00,710 INFO L226 Difference]: Without dead ends: 375 [2022-11-22 00:22:00,712 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 580 GetRequests, 513 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1371 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=1809, Invalid=2883, Unknown=0, NotChecked=0, Total=4692 [2022-11-22 00:22:00,712 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 180 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-22 00:22:00,713 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 58 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-22 00:22:00,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2022-11-22 00:22:00,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 375. [2022-11-22 00:22:00,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 374 states have (on average 1.0026737967914439) internal successors, (375), 374 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:22:00,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 375 transitions. [2022-11-22 00:22:00,749 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 375 transitions. Word has length 185 [2022-11-22 00:22:00,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:22:00,749 INFO L495 AbstractCegarLoop]: Abstraction has 375 states and 375 transitions. [2022-11-22 00:22:00,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 54 states have (on average 7.018518518518518) internal successors, (379), 55 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:22:00,749 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 375 transitions. [2022-11-22 00:22:00,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2022-11-22 00:22:00,755 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:22:00,756 INFO L195 NwaCegarLoop]: trace histogram [53, 52, 52, 52, 52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:22:00,768 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8119d5fb-5bb5-497c-9d9e-61497928d957/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-22 00:22:00,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8119d5fb-5bb5-497c-9d9e-61497928d957/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-22 00:22:00,968 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-22 00:22:00,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:22:00,969 INFO L85 PathProgramCache]: Analyzing trace with hash 1091357218, now seen corresponding path program 2 times [2022-11-22 00:22:00,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:22:00,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974846114] [2022-11-22 00:22:00,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:22:00,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:22:01,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:22:04,826 INFO L134 CoverageAnalysis]: Checked inductivity of 9386 backedges. 0 proven. 9386 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:22:04,826 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:22:04,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974846114] [2022-11-22 00:22:04,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974846114] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 00:22:04,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1726851820] [2022-11-22 00:22:04,827 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-22 00:22:04,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:22:04,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8119d5fb-5bb5-497c-9d9e-61497928d957/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:22:04,829 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8119d5fb-5bb5-497c-9d9e-61497928d957/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:22:04,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8119d5fb-5bb5-497c-9d9e-61497928d957/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-22 00:22:04,941 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-22 00:22:04,942 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 00:22:04,943 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-22 00:22:04,949 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:22:05,600 INFO L134 CoverageAnalysis]: Checked inductivity of 9386 backedges. 102 proven. 155 refuted. 0 times theorem prover too weak. 9129 trivial. 0 not checked. [2022-11-22 00:22:05,600 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 00:22:06,307 INFO L134 CoverageAnalysis]: Checked inductivity of 9386 backedges. 0 proven. 257 refuted. 0 times theorem prover too weak. 9129 trivial. 0 not checked. [2022-11-22 00:22:06,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1726851820] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 00:22:06,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [567828860] [2022-11-22 00:22:06,312 INFO L159 IcfgInterpreter]: Started Sifa with 16 locations of interest [2022-11-22 00:22:06,312 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 00:22:06,312 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 00:22:06,312 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 00:22:06,313 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 00:22:06,712 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 00:22:08,916 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '14474#(and (< 2147483646 |ULTIMATE.start_main_~main__t~0#1|) (<= ~__tmp_383_0~0 0) (= ~__tmp_259_0~0 0) (<= 0 ~__tmp_383_0~0) (<= |ULTIMATE.start_main_~__tmp_14~0#1| 1) (<= 0 |ULTIMATE.start_main_~__tmp_14~0#1|) (<= |ULTIMATE.start_main_~main__tagbuf_len~0#1| 2147483646) (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~13#1| 1) (<= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~13#1|) (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~12#1| 1) (= |ULTIMATE.start_main_~main__t~0#1| |ULTIMATE.start_main_~main____CPAchecker_TMP_1~0#1|) (= ~__return_305~0 0) (<= 0 |ULTIMATE.start_main_~main__tagbuf_len~0#1|) (<= 0 |ULTIMATE.start_main_~__tmp_13~0#1|) (= ~__tmp_383_0~0 |ULTIMATE.start_main_~main____CPAchecker_TMP_0~0#1|) (= |#NULL.offset| 0) (<= |ULTIMATE.start_main_~__tmp_13~0#1| 1) (<= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~12#1|) (<= 0 |#StackHeapBarrier|) (= ~__return_main~0 0) (= |#NULL.base| 0))' at error location [2022-11-22 00:22:08,916 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 00:22:08,916 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 00:22:08,917 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [54, 5, 5] total 63 [2022-11-22 00:22:08,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018837948] [2022-11-22 00:22:08,917 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 00:22:08,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2022-11-22 00:22:08,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:22:08,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2022-11-22 00:22:08,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2131, Invalid=3875, Unknown=0, NotChecked=0, Total=6006 [2022-11-22 00:22:08,920 INFO L87 Difference]: Start difference. First operand 375 states and 375 transitions. Second operand has 64 states, 63 states have (on average 6.603174603174603) internal successors, (416), 64 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:22:15,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:22:15,275 INFO L93 Difference]: Finished difference Result 387 states and 388 transitions. [2022-11-22 00:22:15,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 116 states. [2022-11-22 00:22:15,276 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 63 states have (on average 6.603174603174603) internal successors, (416), 64 states have internal predecessors, (416), 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 374 [2022-11-22 00:22:15,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:22:15,277 INFO L225 Difference]: With dead ends: 387 [2022-11-22 00:22:15,277 INFO L226 Difference]: Without dead ends: 0 [2022-11-22 00:22:15,281 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1287 GetRequests, 1097 SyntacticMatches, 1 SemanticMatches, 189 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10468 ImplicationChecksByTransitivity, 9.5s TimeCoverageRelationStatistics Valid=10664, Invalid=25626, Unknown=0, NotChecked=0, Total=36290 [2022-11-22 00:22:15,281 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 1606 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 276 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1606 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 699 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 276 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-22 00:22:15,282 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1606 Valid, 2 Invalid, 699 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [276 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-22 00:22:15,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-22 00:22:15,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-22 00:22:15,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:22:15,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-22 00:22:15,283 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 374 [2022-11-22 00:22:15,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:22:15,283 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-22 00:22:15,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 63 states have (on average 6.603174603174603) internal successors, (416), 64 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:22:15,284 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-22 00:22:15,284 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-22 00:22:15,287 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2022-11-22 00:22:15,287 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2022-11-22 00:22:15,288 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2022-11-22 00:22:15,288 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2022-11-22 00:22:15,288 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 10 remaining) [2022-11-22 00:22:15,288 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 10 remaining) [2022-11-22 00:22:15,288 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2022-11-22 00:22:15,289 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2022-11-22 00:22:15,289 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2022-11-22 00:22:15,289 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2022-11-22 00:22:15,294 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8119d5fb-5bb5-497c-9d9e-61497928d957/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-22 00:22:15,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8119d5fb-5bb5-497c-9d9e-61497928d957/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-22 00:22:15,496 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-22 00:22:45,629 WARN L233 SmtUtils]: Spent 28.44s on a formula simplification. DAG size of input: 535 DAG size of output: 535 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-22 00:22:58,715 WARN L233 SmtUtils]: Spent 8.85s on a formula simplification. DAG size of input: 535 DAG size of output: 9 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2022-11-22 00:23:02,646 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 61) no Hoare annotation was computed. [2022-11-22 00:23:02,647 INFO L899 garLoopResultBuilder]: For program point L234(lines 234 242) no Hoare annotation was computed. [2022-11-22 00:23:02,647 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 194) no Hoare annotation was computed. [2022-11-22 00:23:02,647 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2022-11-22 00:23:02,647 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-22 00:23:02,648 INFO L899 garLoopResultBuilder]: For program point L61(line 61) no Hoare annotation was computed. [2022-11-22 00:23:02,648 INFO L899 garLoopResultBuilder]: For program point L61-1(line 61) no Hoare annotation was computed. [2022-11-22 00:23:02,648 INFO L899 garLoopResultBuilder]: For program point L152(lines 152 160) no Hoare annotation was computed. [2022-11-22 00:23:02,648 INFO L899 garLoopResultBuilder]: For program point L20(lines 20 401) no Hoare annotation was computed. [2022-11-22 00:23:02,648 INFO L899 garLoopResultBuilder]: For program point L276(lines 276 391) no Hoare annotation was computed. [2022-11-22 00:23:02,649 INFO L895 garLoopResultBuilder]: At program point L400(lines 15 402) the Hoare annotation is: (<= |ULTIMATE.start_main_~main__tagbuf_len~0#1| 2147483647) [2022-11-22 00:23:02,649 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 287) no Hoare annotation was computed. [2022-11-22 00:23:02,649 INFO L899 garLoopResultBuilder]: For program point L70(lines 70 94) no Hoare annotation was computed. [2022-11-22 00:23:02,649 INFO L899 garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed. [2022-11-22 00:23:02,649 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2022-11-22 00:23:02,650 INFO L899 garLoopResultBuilder]: For program point L194-1(line 194) no Hoare annotation was computed. [2022-11-22 00:23:02,650 INFO L895 garLoopResultBuilder]: At program point L384(lines 282 391) the Hoare annotation is: (let ((.cse21 (select |#memory_int| 1))) (let ((.cse0 (= (select |#length| 3) 12)) (.cse1 (= ~__tmp_259_0~0 0)) (.cse2 (<= |ULTIMATE.start_main_~main__tagbuf_len~0#1| 2147483646)) (.cse3 (= 2 (select |#length| 1))) (.cse4 (= (select |#valid| 3) 1)) (.cse6 (= ~__return_305~0 0)) (.cse7 (= (select |#valid| 1) 1)) (.cse8 (<= 0 |ULTIMATE.start_main_~main__tagbuf_len~0#1|)) (.cse9 (= (select |#valid| 0) 0)) (.cse10 (= (select |#valid| 2) 1)) (.cse5 (ite (<= 0 |ULTIMATE.start_main_~main__t~0#1|) 1 0)) (.cse11 (= |#NULL.offset| 0)) (.cse12 (= (select .cse21 0) 48)) (.cse13 (= 33 (select |#length| 2))) (.cse14 (= (select .cse21 1) 0)) (.cse16 (ite (<= |ULTIMATE.start_main_~main__t~0#1| |ULTIMATE.start_main_~main__tagbuf_len~0#1|) 1 0)) (.cse15 (= ~__return_main~0 0)) (.cse17 (= ~__tmp_383_0~0 0)) (.cse18 (not (= |ULTIMATE.start_main_~main__t~0#1| |ULTIMATE.start_main_~main__tagbuf_len~0#1|))) (.cse19 (< 0 |#StackHeapBarrier|)) (.cse20 (= |#NULL.base| 0))) (or (and .cse0 .cse1 (= |ULTIMATE.start_main_~__tmp_19~0#1| |ULTIMATE.start_main_~__VERIFIER_assert__cond~18#1|) (<= |ULTIMATE.start_main_~__tmp_14~0#1| 1) (= |ULTIMATE.start_main_~__tmp_20~0#1| |ULTIMATE.start_main_~__VERIFIER_assert__cond~19#1|) (<= 0 |ULTIMATE.start_main_~__tmp_14~0#1|) .cse2 .cse3 .cse4 (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~13#1| 1) (= |ULTIMATE.start_main_~__tmp_19~0#1| .cse5) (<= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~13#1|) (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~12#1| 1) .cse6 (= (+ |ULTIMATE.start_main_~main____CPAchecker_TMP_1~0#1| 1) |ULTIMATE.start_main_~main__t~0#1|) .cse7 (<= 0 |ULTIMATE.start_main_~main____CPAchecker_TMP_1~0#1|) .cse8 (<= 0 |ULTIMATE.start_main_~__tmp_13~0#1|) (= ~__tmp_383_0~0 |ULTIMATE.start_main_~main____CPAchecker_TMP_0~0#1|) .cse9 .cse10 .cse11 .cse12 .cse13 (<= |ULTIMATE.start_main_~__tmp_13~0#1| 1) .cse14 (<= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~12#1|) .cse15 (= |ULTIMATE.start_main_~__tmp_20~0#1| .cse16) .cse17 .cse18 .cse19 (= |ULTIMATE.start_main_~main____CPAchecker_TMP_0~1#1| 0) .cse20 (<= |ULTIMATE.start_main_~main__t~0#1| 2147483645)) (and .cse0 .cse1 (= |ULTIMATE.start_main_~main____CPAchecker_TMP_0~0#1| 0) (= |ULTIMATE.start_main_~__tmp_14~0#1| |ULTIMATE.start_main_~__VERIFIER_assert__cond~13#1|) .cse2 .cse3 (= |ULTIMATE.start_main_~__tmp_13~0#1| |ULTIMATE.start_main_~__VERIFIER_assert__cond~12#1|) .cse4 (= |ULTIMATE.start_main_~main__t~0#1| 0) .cse6 .cse7 .cse8 .cse9 .cse10 (= |ULTIMATE.start_main_~__tmp_13~0#1| .cse5) .cse11 .cse12 .cse13 .cse14 (= |ULTIMATE.start_main_~__tmp_14~0#1| .cse16) .cse15 .cse17 .cse18 .cse19 .cse20)))) [2022-11-22 00:23:02,651 INFO L895 garLoopResultBuilder]: At program point L351(lines 32 395) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_main_~main__tagbuf_len~0#1| 2147483646)) (.cse1 (ite (<= 0 |ULTIMATE.start_main_~main__t~0#1|) 1 0)) (.cse2 (= ~__return_305~0 0)) (.cse5 (ite (<= |ULTIMATE.start_main_~main__t~0#1| |ULTIMATE.start_main_~main__tagbuf_len~0#1|) 1 0)) (.cse3 (= |#NULL.offset| 0)) (.cse6 (= ~__return_main~0 0)) (.cse7 (not (= |ULTIMATE.start_main_~main__t~0#1| |ULTIMATE.start_main_~main__tagbuf_len~0#1|))) (.cse8 (= |#NULL.base| 0))) (or (let ((.cse4 (select |#memory_int| 1))) (and (= |ULTIMATE.start_main_~__VERIFIER_assert__cond~0#1| |ULTIMATE.start_main_~__tmp_1~0#1|) (<= 0 (+ |ULTIMATE.start_main_~main____CPAchecker_TMP_0~0#1| 2147483648)) (= (select |#length| 3) 12) (= |ULTIMATE.start_main_~__VERIFIER_assert__cond~1#1| |ULTIMATE.start_main_~__tmp_2~0#1|) .cse0 (= 2 (select |#length| 1)) (= |ULTIMATE.start_main_~__tmp_1~0#1| .cse1) (= ~__tmp_259_0~0 |ULTIMATE.start_main_~main____CPAchecker_TMP_0~0#1|) (= (select |#valid| 3) 1) (= |ULTIMATE.start_main_~main__t~0#1| 0) (<= |ULTIMATE.start_main_~main____CPAchecker_TMP_0~0#1| 2147483647) .cse2 (= (select |#valid| 1) 1) (<= 0 |ULTIMATE.start_main_~main__tagbuf_len~0#1|) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) .cse3 (= (select .cse4 0) 48) (= .cse5 |ULTIMATE.start_main_~__tmp_2~0#1|) (= 33 (select |#length| 2)) (= (select .cse4 1) 0) .cse6 (= ~__tmp_383_0~0 0) .cse7 (< 0 |#StackHeapBarrier|) .cse8 (not (= |ULTIMATE.start_main_~main____CPAchecker_TMP_0~0#1| 0)))) (and (<= ~__tmp_383_0~0 0) (<= |ULTIMATE.start_main_~main____CPAchecker_TMP_0~1#1| 2147483647) (<= 0 ~__tmp_383_0~0) (<= |ULTIMATE.start_main_~__tmp_14~0#1| 1) (not (= |ULTIMATE.start_main_~__VERIFIER_assert__cond~17#1| 0)) (= |ULTIMATE.start_main_~__tmp_18~0#1| |ULTIMATE.start_main_~__VERIFIER_assert__cond~17#1|) (<= 0 |ULTIMATE.start_main_~__tmp_14~0#1|) .cse0 (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~13#1| 1) (<= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~13#1|) (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~12#1| 1) (= |ULTIMATE.start_main_~__tmp_17~0#1| .cse1) .cse2 (= (+ |ULTIMATE.start_main_~main____CPAchecker_TMP_1~0#1| 1) |ULTIMATE.start_main_~main__t~0#1|) (<= 0 |ULTIMATE.start_main_~main____CPAchecker_TMP_1~0#1|) (= |ULTIMATE.start_main_~__tmp_18~0#1| .cse5) (<= 0 |ULTIMATE.start_main_~__tmp_13~0#1|) (= ~__tmp_383_0~0 |ULTIMATE.start_main_~main____CPAchecker_TMP_0~0#1|) (= |ULTIMATE.start_main_~__tmp_17~0#1| |ULTIMATE.start_main_~__VERIFIER_assert__cond~16#1|) .cse3 (<= 0 (+ |ULTIMATE.start_main_~main____CPAchecker_TMP_0~1#1| 2147483648)) (not (= |ULTIMATE.start_main_~main____CPAchecker_TMP_0~1#1| 0)) (<= |ULTIMATE.start_main_~__tmp_13~0#1| 1) (<= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~12#1|) (<= 0 |#StackHeapBarrier|) .cse6 (= ~__tmp_259_0~0 |ULTIMATE.start_main_~main____CPAchecker_TMP_0~1#1|) .cse7 .cse8))) [2022-11-22 00:23:02,652 INFO L899 garLoopResultBuilder]: For program point L186(lines 186 196) no Hoare annotation was computed. [2022-11-22 00:23:02,652 INFO L899 garLoopResultBuilder]: For program point L376(lines 376 385) no Hoare annotation was computed. [2022-11-22 00:23:02,652 INFO L899 garLoopResultBuilder]: For program point L343(lines 343 352) no Hoare annotation was computed. [2022-11-22 00:23:02,652 INFO L899 garLoopResultBuilder]: For program point L112(lines 112 203) no Hoare annotation was computed. [2022-11-22 00:23:02,652 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 287) no Hoare annotation was computed. [2022-11-22 00:23:02,653 INFO L895 garLoopResultBuilder]: At program point L195(lines 56 253) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~main__t~0#1| 2147483646) (<= |ULTIMATE.start_main_~main__tagbuf_len~0#1| 2147483646) (<= 1 |ULTIMATE.start_main_~main__t~0#1|)) [2022-11-22 00:23:02,653 INFO L899 garLoopResultBuilder]: For program point L105(lines 105 209) no Hoare annotation was computed. [2022-11-22 00:23:02,653 INFO L899 garLoopResultBuilder]: For program point L39(lines 39 255) no Hoare annotation was computed. [2022-11-22 00:23:02,653 INFO L899 garLoopResultBuilder]: For program point L295(lines 295 317) no Hoare annotation was computed. [2022-11-22 00:23:02,653 INFO L899 garLoopResultBuilder]: For program point L287(line 287) no Hoare annotation was computed. [2022-11-22 00:23:02,653 INFO L899 garLoopResultBuilder]: For program point L287-1(line 287) no Hoare annotation was computed. [2022-11-22 00:23:02,653 INFO L899 garLoopResultBuilder]: For program point L23(line 23) no Hoare annotation was computed. [2022-11-22 00:23:02,654 INFO L899 garLoopResultBuilder]: For program point L23-1(line 23) no Hoare annotation was computed. [2022-11-22 00:23:02,654 INFO L899 garLoopResultBuilder]: For program point L32(lines 32 395) no Hoare annotation was computed. [2022-11-22 00:23:02,654 INFO L899 garLoopResultBuilder]: For program point L288(lines 288 390) no Hoare annotation was computed. [2022-11-22 00:23:02,654 INFO L899 garLoopResultBuilder]: For program point L222(lines 222 244) no Hoare annotation was computed. [2022-11-22 00:23:02,654 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 132) no Hoare annotation was computed. [2022-11-22 00:23:02,654 INFO L899 garLoopResultBuilder]: For program point L24(lines 24 396) no Hoare annotation was computed. [2022-11-22 00:23:02,655 INFO L899 garLoopResultBuilder]: For program point L82(lines 82 92) no Hoare annotation was computed. [2022-11-22 00:23:02,655 INFO L899 garLoopResultBuilder]: For program point L140(lines 140 162) no Hoare annotation was computed. [2022-11-22 00:23:02,655 INFO L899 garLoopResultBuilder]: For program point L132(line 132) no Hoare annotation was computed. [2022-11-22 00:23:02,655 INFO L899 garLoopResultBuilder]: For program point L132-1(line 132) no Hoare annotation was computed. [2022-11-22 00:23:02,655 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-22 00:23:02,655 INFO L899 garLoopResultBuilder]: For program point L124(lines 124 201) no Hoare annotation was computed. [2022-11-22 00:23:02,655 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 132) no Hoare annotation was computed. [2022-11-22 00:23:02,656 INFO L895 garLoopResultBuilder]: At program point L314(lines 32 395) the Hoare annotation is: (<= |ULTIMATE.start_main_~main__tagbuf_len~0#1| 2147483647) [2022-11-22 00:23:02,656 INFO L899 garLoopResultBuilder]: For program point L215(lines 215 250) no Hoare annotation was computed. [2022-11-22 00:23:02,656 INFO L899 garLoopResultBuilder]: For program point L50(lines 50 253) no Hoare annotation was computed. [2022-11-22 00:23:02,656 INFO L899 garLoopResultBuilder]: For program point L174(lines 174 198) no Hoare annotation was computed. [2022-11-22 00:23:02,656 INFO L899 garLoopResultBuilder]: For program point L364(lines 364 387) no Hoare annotation was computed. [2022-11-22 00:23:02,656 INFO L899 garLoopResultBuilder]: For program point L331(lines 331 354) no Hoare annotation was computed. [2022-11-22 00:23:02,657 INFO L899 garLoopResultBuilder]: For program point L265(lines 265 393) no Hoare annotation was computed. [2022-11-22 00:23:02,657 INFO L899 garLoopResultBuilder]: For program point L133(lines 133 200) no Hoare annotation was computed. [2022-11-22 00:23:02,657 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 61) no Hoare annotation was computed. [2022-11-22 00:23:02,657 INFO L895 garLoopResultBuilder]: At program point L249(lines 101 251) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~main__tagbuf_len~0#1| 2147483646) (<= 1 |ULTIMATE.start_main_~main__t~0#1|) (not (= |ULTIMATE.start_main_~main__t~0#1| |ULTIMATE.start_main_~main__tagbuf_len~0#1|))) [2022-11-22 00:23:02,657 INFO L899 garLoopResultBuilder]: For program point L307(lines 307 315) no Hoare annotation was computed. [2022-11-22 00:23:02,657 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 194) no Hoare annotation was computed. [2022-11-22 00:23:02,658 INFO L899 garLoopResultBuilder]: For program point L101(lines 101 251) no Hoare annotation was computed. [2022-11-22 00:23:02,658 INFO L899 garLoopResultBuilder]: For program point L324(lines 324 389) no Hoare annotation was computed. [2022-11-22 00:23:02,661 INFO L444 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:23:02,664 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 00:23:02,692 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 12:23:02 BoogieIcfgContainer [2022-11-22 00:23:02,697 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 00:23:02,698 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 00:23:02,698 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 00:23:02,698 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 00:23:02,699 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:20:08" (3/4) ... [2022-11-22 00:23:02,702 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-22 00:23:02,714 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-11-22 00:23:02,714 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-22 00:23:02,715 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-22 00:23:02,715 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-22 00:23:02,784 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8119d5fb-5bb5-497c-9d9e-61497928d957/bin/utaipan-g80aRyZoba/witness.graphml [2022-11-22 00:23:02,785 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 00:23:02,785 INFO L158 Benchmark]: Toolchain (without parser) took 175359.40ms. Allocated memory was 151.0MB in the beginning and 740.3MB in the end (delta: 589.3MB). Free memory was 111.5MB in the beginning and 489.0MB in the end (delta: -377.5MB). Peak memory consumption was 213.6MB. Max. memory is 16.1GB. [2022-11-22 00:23:02,786 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 151.0MB. Free memory was 90.5MB in the beginning and 90.3MB in the end (delta: 159.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 00:23:02,788 INFO L158 Benchmark]: CACSL2BoogieTranslator took 389.57ms. Allocated memory is still 151.0MB. Free memory was 111.1MB in the beginning and 94.7MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-22 00:23:02,788 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.48ms. Allocated memory is still 151.0MB. Free memory was 94.7MB in the beginning and 92.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 00:23:02,788 INFO L158 Benchmark]: Boogie Preprocessor took 23.38ms. Allocated memory is still 151.0MB. Free memory was 92.2MB in the beginning and 90.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 00:23:02,789 INFO L158 Benchmark]: RCFGBuilder took 547.73ms. Allocated memory was 151.0MB in the beginning and 203.4MB in the end (delta: 52.4MB). Free memory was 90.9MB in the beginning and 172.0MB in the end (delta: -81.1MB). Peak memory consumption was 21.9MB. Max. memory is 16.1GB. [2022-11-22 00:23:02,789 INFO L158 Benchmark]: TraceAbstraction took 174240.13ms. Allocated memory was 203.4MB in the beginning and 740.3MB in the end (delta: 536.9MB). Free memory was 171.3MB in the beginning and 494.2MB in the end (delta: -322.9MB). Peak memory consumption was 464.5MB. Max. memory is 16.1GB. [2022-11-22 00:23:02,792 INFO L158 Benchmark]: Witness Printer took 86.72ms. Allocated memory is still 740.3MB. Free memory was 494.2MB in the beginning and 489.0MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-22 00:23:02,797 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 151.0MB. Free memory was 90.5MB in the beginning and 90.3MB in the end (delta: 159.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 389.57ms. Allocated memory is still 151.0MB. Free memory was 111.1MB in the beginning and 94.7MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.48ms. Allocated memory is still 151.0MB. Free memory was 94.7MB in the beginning and 92.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.38ms. Allocated memory is still 151.0MB. Free memory was 92.2MB in the beginning and 90.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 547.73ms. Allocated memory was 151.0MB in the beginning and 203.4MB in the end (delta: 52.4MB). Free memory was 90.9MB in the beginning and 172.0MB in the end (delta: -81.1MB). Peak memory consumption was 21.9MB. Max. memory is 16.1GB. * TraceAbstraction took 174240.13ms. Allocated memory was 203.4MB in the beginning and 740.3MB in the end (delta: 536.9MB). Free memory was 171.3MB in the beginning and 494.2MB in the end (delta: -322.9MB). Peak memory consumption was 464.5MB. Max. memory is 16.1GB. * Witness Printer took 86.72ms. Allocated memory is still 740.3MB. Free memory was 494.2MB in the beginning and 489.0MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 61]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 61]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 132]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 132]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 194]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 194]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 287]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 287]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 57 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 174.1s, OverallIterations: 15, TraceHistogramMax: 53, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 42.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 47.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 8835 SdHoareTripleChecker+Valid, 7.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8835 mSDsluCounter, 979 SdHoareTripleChecker+Invalid, 6.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 687 mSDsCounter, 1208 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5157 IncrementalHoareTripleChecker+Invalid, 6365 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1208 mSolverCounterUnsat, 292 mSDtfsCounter, 5157 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3201 GetRequests, 2511 SyntacticMatches, 16 SemanticMatches, 674 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27186 ImplicationChecksByTransitivity, 89.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=862occurred in iteration=12, InterpolantAutomatonStates: 444, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 15 MinimizatonAttempts, 546 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 230 NumberOfFragments, 505 HoareAnnotationTreeSize, 6 FomulaSimplifications, 7821 FormulaSimplificationTreeSizeReduction, 33.6s HoareSimplificationTime, 6 FomulaSimplificationsInter, 330413 FormulaSimplificationTreeSizeReductionInter, 13.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 11.5s InterpolantComputationTime, 1967 NumberOfCodeBlocks, 1486 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 2867 ConstructedInterpolants, 0 QuantifiedInterpolants, 8609 SizeOfPredicates, 8 NumberOfNonLiveVariables, 1891 ConjunctsInSsa, 80 ConjunctsInUnsatCore, 31 InterpolantComputations, 7 PerfectInterpolantSequences, 19468/36693 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: OVERALL_TIME: 8.5s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 3, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 94, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 206, TOOLS_POST_TIME: 7.5s, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME: 0.0s, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME: 0.0s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 206, TOOLS_QUANTIFIERELIM_TIME: 7.3s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.3s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 320, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 18, DOMAIN_JOIN_TIME: 0.5s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 6, DOMAIN_WIDEN_TIME: 0.2s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 9, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 94, DOMAIN_ISBOTTOM_TIME: 0.2s, LOOP_SUMMARIZER_APPLICATIONS: 3, LOOP_SUMMARIZER_CACHE_MISSES: 3, LOOP_SUMMARIZER_OVERALL_TIME: 5.8s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 5.8s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 9, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.1s, DAG_COMPRESSION_PROCESSED_NODES: 2184, DAG_COMPRESSION_RETAINED_NODES: 248, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 10 specifications checked. All of them hold - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((__VERIFIER_assert__cond == __tmp_1 && 0 <= main____CPAchecker_TMP_0 + 2147483648) && unknown-#length-unknown[3] == 12) && __VERIFIER_assert__cond == __tmp_2) && main__tagbuf_len <= 2147483646) && 2 == unknown-#length-unknown[1]) && __tmp_1 == (if 0 <= main__t then 1 else 0)) && __tmp_259_0 == main____CPAchecker_TMP_0) && \valid[3] == 1) && main__t == 0) && main____CPAchecker_TMP_0 <= 2147483647) && __return_305 == 0) && \valid[1] == 1) && 0 <= main__tagbuf_len) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && (if main__t <= main__tagbuf_len then 1 else 0) == __tmp_2) && 33 == unknown-#length-unknown[2]) && unknown-#memory_int-unknown[1][1] == 0) && __return_main == 0) && __tmp_383_0 == 0) && !(main__t == main__tagbuf_len)) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) && !(main____CPAchecker_TMP_0 == 0)) || ((((((((((((((((((((((((((((__tmp_383_0 <= 0 && main____CPAchecker_TMP_0 <= 2147483647) && 0 <= __tmp_383_0) && __tmp_14 <= 1) && !(__VERIFIER_assert__cond == 0)) && __tmp_18 == __VERIFIER_assert__cond) && 0 <= __tmp_14) && main__tagbuf_len <= 2147483646) && __VERIFIER_assert__cond <= 1) && 0 <= __VERIFIER_assert__cond) && __VERIFIER_assert__cond <= 1) && __tmp_17 == (if 0 <= main__t then 1 else 0)) && __return_305 == 0) && main____CPAchecker_TMP_1 + 1 == main__t) && 0 <= main____CPAchecker_TMP_1) && __tmp_18 == (if main__t <= main__tagbuf_len then 1 else 0)) && 0 <= __tmp_13) && __tmp_383_0 == main____CPAchecker_TMP_0) && __tmp_17 == __VERIFIER_assert__cond) && #NULL == 0) && 0 <= main____CPAchecker_TMP_0 + 2147483648) && !(main____CPAchecker_TMP_0 == 0)) && __tmp_13 <= 1) && 0 <= __VERIFIER_assert__cond) && 0 <= unknown-#StackHeapBarrier-unknown) && __return_main == 0) && __tmp_259_0 == main____CPAchecker_TMP_0) && !(main__t == main__tagbuf_len)) && #NULL == 0) - InvariantResult [Line: 101]: Loop Invariant Derived loop invariant: (main__tagbuf_len <= 2147483646 && 1 <= main__t) && !(main__t == main__tagbuf_len) - InvariantResult [Line: 56]: Loop Invariant Derived loop invariant: (main__t <= 2147483646 && main__tagbuf_len <= 2147483646) && 1 <= main__t - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: main__tagbuf_len <= 2147483647 - InvariantResult [Line: 282]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((((((((unknown-#length-unknown[3] == 12 && __tmp_259_0 == 0) && __tmp_19 == __VERIFIER_assert__cond) && __tmp_14 <= 1) && __tmp_20 == __VERIFIER_assert__cond) && 0 <= __tmp_14) && main__tagbuf_len <= 2147483646) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && __VERIFIER_assert__cond <= 1) && __tmp_19 == (if 0 <= main__t then 1 else 0)) && 0 <= __VERIFIER_assert__cond) && __VERIFIER_assert__cond <= 1) && __return_305 == 0) && main____CPAchecker_TMP_1 + 1 == main__t) && \valid[1] == 1) && 0 <= main____CPAchecker_TMP_1) && 0 <= main__tagbuf_len) && 0 <= __tmp_13) && __tmp_383_0 == main____CPAchecker_TMP_0) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && 33 == unknown-#length-unknown[2]) && __tmp_13 <= 1) && unknown-#memory_int-unknown[1][1] == 0) && 0 <= __VERIFIER_assert__cond) && __return_main == 0) && __tmp_20 == (if main__t <= main__tagbuf_len then 1 else 0)) && __tmp_383_0 == 0) && !(main__t == main__tagbuf_len)) && 0 < unknown-#StackHeapBarrier-unknown) && main____CPAchecker_TMP_0 == 0) && #NULL == 0) && main__t <= 2147483645) || ((((((((((((((((((((((((unknown-#length-unknown[3] == 12 && __tmp_259_0 == 0) && main____CPAchecker_TMP_0 == 0) && __tmp_14 == __VERIFIER_assert__cond) && main__tagbuf_len <= 2147483646) && 2 == unknown-#length-unknown[1]) && __tmp_13 == __VERIFIER_assert__cond) && \valid[3] == 1) && main__t == 0) && __return_305 == 0) && \valid[1] == 1) && 0 <= main__tagbuf_len) && \valid[0] == 0) && \valid[2] == 1) && __tmp_13 == (if 0 <= main__t then 1 else 0)) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && 33 == unknown-#length-unknown[2]) && unknown-#memory_int-unknown[1][1] == 0) && __tmp_14 == (if main__t <= main__tagbuf_len then 1 else 0)) && __return_main == 0) && __tmp_383_0 == 0) && !(main__t == main__tagbuf_len)) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: main__tagbuf_len <= 2147483647 RESULT: Ultimate proved your program to be correct! [2022-11-22 00:23:02,842 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8119d5fb-5bb5-497c-9d9e-61497928d957/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE