./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p07.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p07.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 0ae50a693e61df6a46ca7072a4bb10f574babd0618478325de057d7504311e66 --- 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-e04fb08 [2022-11-16 19:23:45,516 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 19:23:45,519 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 19:23:45,562 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 19:23:45,563 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 19:23:45,564 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 19:23:45,566 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 19:23:45,568 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 19:23:45,570 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 19:23:45,581 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 19:23:45,583 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 19:23:45,587 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 19:23:45,587 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 19:23:45,590 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 19:23:45,593 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 19:23:45,595 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 19:23:45,597 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 19:23:45,598 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 19:23:45,601 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 19:23:45,608 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 19:23:45,610 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 19:23:45,611 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 19:23:45,614 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 19:23:45,615 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 19:23:45,622 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 19:23:45,623 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 19:23:45,623 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 19:23:45,625 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 19:23:45,625 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 19:23:45,626 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 19:23:45,626 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 19:23:45,627 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 19:23:45,629 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 19:23:45,630 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 19:23:45,630 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 19:23:45,631 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 19:23:45,631 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 19:23:45,631 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 19:23:45,632 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 19:23:45,632 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 19:23:45,633 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 19:23:45,634 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-16 19:23:45,672 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 19:23:45,672 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 19:23:45,672 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 19:23:45,673 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 19:23:45,673 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 19:23:45,674 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 19:23:45,674 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-16 19:23:45,674 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-16 19:23:45,674 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-16 19:23:45,674 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-16 19:23:45,675 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-16 19:23:45,675 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-16 19:23:45,676 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-16 19:23:45,676 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-16 19:23:45,676 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-16 19:23:45,676 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-16 19:23:45,676 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-16 19:23:45,676 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-16 19:23:45,677 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 19:23:45,677 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 19:23:45,677 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 19:23:45,678 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 19:23:45,678 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 19:23:45,678 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 19:23:45,678 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 19:23:45,678 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 19:23:45,678 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 19:23:45,679 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 19:23:45,679 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 19:23:45,679 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 19:23:45,679 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 19:23:45,680 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-16 19:23:45,680 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 19:23:45,680 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 19:23:45,680 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-16 19:23:45,680 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 19:23:45,680 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 19:23:45,681 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-16 19:23:45,681 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_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0ae50a693e61df6a46ca7072a4bb10f574babd0618478325de057d7504311e66 [2022-11-16 19:23:45,973 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 19:23:45,995 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 19:23:45,997 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 19:23:45,999 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 19:23:46,000 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 19:23:46,002 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p07.c [2022-11-16 19:23:46,071 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/data/31dd86961/d672c80685534fe4bf7f02340599589d/FLAG87e532eca [2022-11-16 19:23:46,499 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 19:23:46,503 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p07.c [2022-11-16 19:23:46,515 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/data/31dd86961/d672c80685534fe4bf7f02340599589d/FLAG87e532eca [2022-11-16 19:23:46,528 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/data/31dd86961/d672c80685534fe4bf7f02340599589d [2022-11-16 19:23:46,530 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 19:23:46,532 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 19:23:46,534 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 19:23:46,535 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 19:23:46,539 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 19:23:46,540 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:23:46" (1/1) ... [2022-11-16 19:23:46,541 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f8fbeaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:23:46, skipping insertion in model container [2022-11-16 19:23:46,541 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:23:46" (1/1) ... [2022-11-16 19:23:46,548 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 19:23:46,586 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 19:23:46,742 WARN L229 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_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p07.c[1107,1120] [2022-11-16 19:23:46,801 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 19:23:46,804 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 19:23:46,814 WARN L229 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_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p07.c[1107,1120] [2022-11-16 19:23:46,849 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 19:23:46,861 INFO L208 MainTranslator]: Completed translation [2022-11-16 19:23:46,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:23:46 WrapperNode [2022-11-16 19:23:46,861 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 19:23:46,862 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 19:23:46,863 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 19:23:46,863 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 19:23:46,882 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:23:46" (1/1) ... [2022-11-16 19:23:46,906 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:23:46" (1/1) ... [2022-11-16 19:23:46,957 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 285 [2022-11-16 19:23:46,957 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 19:23:46,958 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 19:23:46,958 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 19:23:46,967 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 19:23:46,976 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:23:46" (1/1) ... [2022-11-16 19:23:46,976 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:23:46" (1/1) ... [2022-11-16 19:23:46,988 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:23:46" (1/1) ... [2022-11-16 19:23:46,989 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:23:46" (1/1) ... [2022-11-16 19:23:46,996 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:23:46" (1/1) ... [2022-11-16 19:23:47,000 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:23:46" (1/1) ... [2022-11-16 19:23:47,002 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:23:46" (1/1) ... [2022-11-16 19:23:47,004 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:23:46" (1/1) ... [2022-11-16 19:23:47,007 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 19:23:47,008 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 19:23:47,008 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 19:23:47,009 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 19:23:47,009 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:23:46" (1/1) ... [2022-11-16 19:23:47,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 19:23:47,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 19:23:47,041 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 19:23:47,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 19:23:47,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 19:23:47,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 19:23:47,223 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 19:23:47,225 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 19:23:47,674 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 19:23:47,936 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 19:23:47,937 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 19:23:47,939 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 07:23:47 BoogieIcfgContainer [2022-11-16 19:23:47,940 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 19:23:47,944 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 19:23:47,944 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 19:23:47,947 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 19:23:47,947 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 07:23:46" (1/3) ... [2022-11-16 19:23:47,948 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bc23dfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:23:47, skipping insertion in model container [2022-11-16 19:23:47,948 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:23:46" (2/3) ... [2022-11-16 19:23:47,949 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bc23dfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:23:47, skipping insertion in model container [2022-11-16 19:23:47,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 07:23:47" (3/3) ... [2022-11-16 19:23:47,951 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p07.c [2022-11-16 19:23:47,973 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 19:23:47,973 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 19:23:48,031 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 19:23:48,037 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;@ab2d189, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 19:23:48,037 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 19:23:48,041 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 19:23:48,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-16 19:23:48,047 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:23:48,048 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-16 19:23:48,049 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 19:23:48,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:23:48,054 INFO L85 PathProgramCache]: Analyzing trace with hash 4841166, now seen corresponding path program 1 times [2022-11-16 19:23:48,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:23:48,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693096180] [2022-11-16 19:23:48,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:23:48,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:23:48,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 19:23:48,337 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 19:23:48,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 19:23:48,454 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-16 19:23:48,457 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-16 19:23:48,458 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-16 19:23:48,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 19:23:48,465 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-16 19:23:48,469 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 19:23:48,487 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-16 19:23:48,495 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 07:23:48 BoogieIcfgContainer [2022-11-16 19:23:48,496 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 19:23:48,496 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 19:23:48,496 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 19:23:48,497 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 19:23:48,497 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 07:23:47" (3/4) ... [2022-11-16 19:23:48,500 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-16 19:23:48,501 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 19:23:48,502 INFO L158 Benchmark]: Toolchain (without parser) took 1969.82ms. Allocated memory is still 136.3MB. Free memory was 98.9MB in the beginning and 82.4MB in the end (delta: 16.5MB). Peak memory consumption was 16.7MB. Max. memory is 16.1GB. [2022-11-16 19:23:48,502 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 136.3MB. Free memory is still 116.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 19:23:48,503 INFO L158 Benchmark]: CACSL2BoogieTranslator took 327.22ms. Allocated memory is still 136.3MB. Free memory was 98.6MB in the beginning and 108.7MB in the end (delta: -10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-16 19:23:48,504 INFO L158 Benchmark]: Boogie Procedure Inliner took 95.02ms. Allocated memory is still 136.3MB. Free memory was 108.3MB in the beginning and 105.4MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 19:23:48,504 INFO L158 Benchmark]: Boogie Preprocessor took 49.67ms. Allocated memory is still 136.3MB. Free memory was 105.4MB in the beginning and 103.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 19:23:48,505 INFO L158 Benchmark]: RCFGBuilder took 931.50ms. Allocated memory is still 136.3MB. Free memory was 103.7MB in the beginning and 108.9MB in the end (delta: -5.2MB). Peak memory consumption was 57.1MB. Max. memory is 16.1GB. [2022-11-16 19:23:48,506 INFO L158 Benchmark]: TraceAbstraction took 552.20ms. Allocated memory is still 136.3MB. Free memory was 108.3MB in the beginning and 83.1MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-11-16 19:23:48,506 INFO L158 Benchmark]: Witness Printer took 4.57ms. Allocated memory is still 136.3MB. Free memory is still 82.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 19:23:48,509 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 136.3MB. Free memory is still 116.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 327.22ms. Allocated memory is still 136.3MB. Free memory was 98.6MB in the beginning and 108.7MB in the end (delta: -10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 95.02ms. Allocated memory is still 136.3MB. Free memory was 108.3MB in the beginning and 105.4MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.67ms. Allocated memory is still 136.3MB. Free memory was 105.4MB in the beginning and 103.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 931.50ms. Allocated memory is still 136.3MB. Free memory was 103.7MB in the beginning and 108.9MB in the end (delta: -5.2MB). Peak memory consumption was 57.1MB. Max. memory is 16.1GB. * TraceAbstraction took 552.20ms. Allocated memory is still 136.3MB. Free memory was 108.3MB in the beginning and 83.1MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 4.57ms. Allocated memory is still 136.3MB. Free memory is still 82.4MB. There was no memory consumed. 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 - UnprovableResult [Line: 20]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 133, overapproximation of bitwiseComplement at line 135, overapproximation of bitwiseAnd at line 120. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L28] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 8); [L29] const SORT_3 msb_SORT_3 = (SORT_3)1 << (8 - 1); [L31] const SORT_10 mask_SORT_10 = (SORT_10)-1 >> (sizeof(SORT_10) * 8 - 32); [L32] const SORT_10 msb_SORT_10 = (SORT_10)1 << (32 - 1); [L34] const SORT_31 mask_SORT_31 = (SORT_31)-1 >> (sizeof(SORT_31) * 8 - 4); [L35] const SORT_31 msb_SORT_31 = (SORT_31)1 << (4 - 1); [L37] const SORT_67 mask_SORT_67 = (SORT_67)-1 >> (sizeof(SORT_67) * 8 - 10); [L38] const SORT_67 msb_SORT_67 = (SORT_67)1 << (10 - 1); [L40] const SORT_1 var_7 = 0; [L41] const SORT_10 var_12 = 0; [L42] const SORT_1 var_21 = 1; [L44] SORT_1 input_2; [L45] SORT_3 input_4; [L46] SORT_1 input_5; [L47] SORT_1 input_6; [L48] SORT_1 input_29; [L49] SORT_31 input_32; [L50] SORT_1 input_34; [L51] SORT_31 input_36; [L52] SORT_1 input_38; [L53] SORT_1 input_40; [L54] SORT_1 input_44; [L55] SORT_1 input_46; [L56] SORT_1 input_48; [L57] SORT_1 input_50; [L58] SORT_3 input_52; [L59] SORT_1 input_55; [L60] SORT_1 input_59; [L61] SORT_1 input_63; [L62] SORT_1 input_65; [L63] SORT_67 input_68; [L64] SORT_1 input_70; [L65] SORT_1 input_72; [L66] SORT_1 input_82; [L67] SORT_1 input_88; [L69] SORT_1 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L70] SORT_1 state_14 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L71] SORT_1 state_25 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L72] SORT_1 state_27 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L73] SORT_1 state_42 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L74] SORT_1 state_57 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L75] SORT_1 state_61 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L77] SORT_1 init_9_arg_1 = var_7; [L78] state_8 = init_9_arg_1 [L79] SORT_1 init_15_arg_1 = var_7; [L80] state_14 = init_15_arg_1 [L81] SORT_1 init_26_arg_1 = var_7; [L82] state_25 = init_26_arg_1 [L83] SORT_1 init_28_arg_1 = var_7; [L84] state_27 = init_28_arg_1 [L85] SORT_1 init_43_arg_1 = var_7; [L86] state_42 = init_43_arg_1 [L87] SORT_1 init_58_arg_1 = var_7; [L88] state_57 = init_58_arg_1 [L89] SORT_1 init_62_arg_1 = var_7; [L90] state_61 = init_62_arg_1 VAL [init_15_arg_1=0, init_26_arg_1=0, init_28_arg_1=0, init_43_arg_1=0, init_58_arg_1=0, init_62_arg_1=0, init_9_arg_1=0, mask_SORT_1=1, mask_SORT_10=4294967295, mask_SORT_3=255, mask_SORT_31=15, mask_SORT_67=1023, msb_SORT_1=1, msb_SORT_10=2147483648, msb_SORT_3=128, msb_SORT_31=8, msb_SORT_67=512, state_14=0, state_25=0, state_27=0, state_42=0, state_57=0, state_61=0, state_8=0, var_12=0, var_21=1, var_7=0] [L93] input_2 = __VERIFIER_nondet_uchar() [L94] input_4 = __VERIFIER_nondet_uchar() [L95] input_5 = __VERIFIER_nondet_uchar() [L96] input_6 = __VERIFIER_nondet_uchar() [L97] input_29 = __VERIFIER_nondet_uchar() [L98] input_32 = __VERIFIER_nondet_uchar() [L99] input_34 = __VERIFIER_nondet_uchar() [L100] input_36 = __VERIFIER_nondet_uchar() [L101] input_38 = __VERIFIER_nondet_uchar() [L102] input_40 = __VERIFIER_nondet_uchar() [L103] input_44 = __VERIFIER_nondet_uchar() [L104] input_46 = __VERIFIER_nondet_uchar() [L105] input_48 = __VERIFIER_nondet_uchar() [L106] input_50 = __VERIFIER_nondet_uchar() [L107] input_52 = __VERIFIER_nondet_uchar() [L108] input_55 = __VERIFIER_nondet_uchar() [L109] input_59 = __VERIFIER_nondet_uchar() [L110] input_63 = __VERIFIER_nondet_uchar() [L111] input_65 = __VERIFIER_nondet_uchar() [L112] input_68 = __VERIFIER_nondet_ushort() [L113] input_70 = __VERIFIER_nondet_uchar() [L114] input_72 = __VERIFIER_nondet_uchar() [L115] input_82 = __VERIFIER_nondet_uchar() [L116] input_88 = __VERIFIER_nondet_uchar() [L119] SORT_1 var_11_arg_0 = state_8; [L120] var_11_arg_0 = var_11_arg_0 & mask_SORT_1 [L121] SORT_10 var_11 = var_11_arg_0; [L122] SORT_10 var_13_arg_0 = var_11; [L123] SORT_10 var_13_arg_1 = var_12; [L124] SORT_1 var_13 = var_13_arg_0 == var_13_arg_1; [L125] SORT_1 var_16_arg_0 = state_14; [L126] var_16_arg_0 = var_16_arg_0 & mask_SORT_1 [L127] SORT_10 var_16 = var_16_arg_0; [L128] SORT_10 var_17_arg_0 = var_16; [L129] SORT_10 var_17_arg_1 = var_12; [L130] SORT_1 var_17 = var_17_arg_0 == var_17_arg_1; [L131] SORT_1 var_18_arg_0 = var_13; [L132] SORT_1 var_18_arg_1 = var_17; [L133] SORT_1 var_18 = var_18_arg_0 | var_18_arg_1; [L134] SORT_1 var_22_arg_0 = var_18; [L135] SORT_1 var_22 = ~var_22_arg_0; [L136] SORT_1 var_23_arg_0 = var_21; [L137] SORT_1 var_23_arg_1 = var_22; [L138] SORT_1 var_23 = var_23_arg_0 & var_23_arg_1; [L139] var_23 = var_23 & mask_SORT_1 [L140] SORT_1 bad_24_arg_0 = var_23; [L141] CALL __VERIFIER_assert(!(bad_24_arg_0)) [L20] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L20] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 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: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-16 19:23:48,536 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p07.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 0ae50a693e61df6a46ca7072a4bb10f574babd0618478325de057d7504311e66 --- 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-e04fb08 [2022-11-16 19:23:50,857 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 19:23:50,858 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 19:23:50,878 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 19:23:50,880 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 19:23:50,881 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 19:23:50,883 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 19:23:50,887 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 19:23:50,890 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 19:23:50,892 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 19:23:50,894 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 19:23:50,897 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 19:23:50,898 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 19:23:50,903 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 19:23:50,905 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 19:23:50,907 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 19:23:50,908 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 19:23:50,910 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 19:23:50,912 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 19:23:50,915 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 19:23:50,921 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 19:23:50,925 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 19:23:50,926 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 19:23:50,928 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 19:23:50,932 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 19:23:50,937 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 19:23:50,938 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 19:23:50,941 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 19:23:50,941 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 19:23:50,942 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 19:23:50,944 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 19:23:50,945 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 19:23:50,946 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 19:23:50,947 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 19:23:50,948 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 19:23:50,948 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 19:23:50,949 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 19:23:50,950 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 19:23:50,950 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 19:23:50,951 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 19:23:50,952 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 19:23:50,955 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-16 19:23:50,991 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 19:23:50,992 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 19:23:50,992 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 19:23:50,993 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 19:23:50,993 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 19:23:50,994 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 19:23:50,994 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-16 19:23:50,994 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-16 19:23:50,995 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-16 19:23:50,995 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-16 19:23:50,996 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-16 19:23:50,996 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-16 19:23:50,998 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 19:23:50,998 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 19:23:50,998 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 19:23:50,999 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 19:23:50,999 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 19:23:50,999 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-16 19:23:50,999 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-16 19:23:51,000 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-16 19:23:51,000 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 19:23:51,000 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 19:23:51,001 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 19:23:51,001 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 19:23:51,001 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 19:23:51,001 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 19:23:51,002 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 19:23:51,002 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 19:23:51,002 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 19:23:51,003 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 19:23:51,003 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-16 19:23:51,003 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-16 19:23:51,004 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 19:23:51,004 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-16 19:23:51,004 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-16 19:23:51,004 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0ae50a693e61df6a46ca7072a4bb10f574babd0618478325de057d7504311e66 [2022-11-16 19:23:51,381 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 19:23:51,402 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 19:23:51,404 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 19:23:51,406 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 19:23:51,407 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 19:23:51,408 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p07.c [2022-11-16 19:23:51,478 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/data/7f4a30dfb/b4f6fd0c3b014b11ba03dceeac644d48/FLAG42aa485f3 [2022-11-16 19:23:51,982 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 19:23:51,987 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p07.c [2022-11-16 19:23:52,000 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/data/7f4a30dfb/b4f6fd0c3b014b11ba03dceeac644d48/FLAG42aa485f3 [2022-11-16 19:23:52,350 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/data/7f4a30dfb/b4f6fd0c3b014b11ba03dceeac644d48 [2022-11-16 19:23:52,353 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 19:23:52,354 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 19:23:52,358 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 19:23:52,359 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 19:23:52,362 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 19:23:52,363 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:23:52" (1/1) ... [2022-11-16 19:23:52,364 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@783595bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:23:52, skipping insertion in model container [2022-11-16 19:23:52,364 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:23:52" (1/1) ... [2022-11-16 19:23:52,372 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 19:23:52,409 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 19:23:52,583 WARN L229 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_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p07.c[1107,1120] [2022-11-16 19:23:52,646 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 19:23:52,650 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 19:23:52,687 WARN L229 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_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p07.c[1107,1120] [2022-11-16 19:23:52,760 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 19:23:52,784 INFO L208 MainTranslator]: Completed translation [2022-11-16 19:23:52,785 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:23:52 WrapperNode [2022-11-16 19:23:52,785 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 19:23:52,786 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 19:23:52,786 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 19:23:52,786 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 19:23:52,795 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:23:52" (1/1) ... [2022-11-16 19:23:52,816 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:23:52" (1/1) ... [2022-11-16 19:23:52,856 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 229 [2022-11-16 19:23:52,857 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 19:23:52,857 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 19:23:52,858 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 19:23:52,858 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 19:23:52,872 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:23:52" (1/1) ... [2022-11-16 19:23:52,872 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:23:52" (1/1) ... [2022-11-16 19:23:52,886 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:23:52" (1/1) ... [2022-11-16 19:23:52,886 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:23:52" (1/1) ... [2022-11-16 19:23:52,893 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:23:52" (1/1) ... [2022-11-16 19:23:52,913 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:23:52" (1/1) ... [2022-11-16 19:23:52,914 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:23:52" (1/1) ... [2022-11-16 19:23:52,916 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:23:52" (1/1) ... [2022-11-16 19:23:52,918 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 19:23:52,919 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 19:23:52,919 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 19:23:52,919 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 19:23:52,920 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:23:52" (1/1) ... [2022-11-16 19:23:52,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 19:23:52,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 19:23:52,959 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 19:23:52,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 19:23:53,017 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 19:23:53,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 19:23:53,161 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 19:23:53,173 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 19:23:53,528 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 19:23:53,535 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 19:23:53,535 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 19:23:53,537 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 07:23:53 BoogieIcfgContainer [2022-11-16 19:23:53,537 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 19:23:53,540 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 19:23:53,540 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 19:23:53,549 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 19:23:53,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 07:23:52" (1/3) ... [2022-11-16 19:23:53,551 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45550c2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:23:53, skipping insertion in model container [2022-11-16 19:23:53,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:23:52" (2/3) ... [2022-11-16 19:23:53,551 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45550c2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:23:53, skipping insertion in model container [2022-11-16 19:23:53,552 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 07:23:53" (3/3) ... [2022-11-16 19:23:53,553 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p07.c [2022-11-16 19:23:53,577 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 19:23:53,578 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 19:23:53,646 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 19:23:53,654 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;@528b701d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 19:23:53,654 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 19:23:53,658 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 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) [2022-11-16 19:23:53,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-16 19:23:53,665 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:23:53,666 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-16 19:23:53,666 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 19:23:53,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:23:53,672 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-16 19:23:53,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-16 19:23:53,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [390788087] [2022-11-16 19:23:53,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:23:53,686 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 19:23:53,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/mathsat [2022-11-16 19:23:53,695 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 19:23:53,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-16 19:23:53,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:23:53,822 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-16 19:23:53,830 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 19:23:54,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:23:54,109 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 19:23:54,110 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-16 19:23:54,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [390788087] [2022-11-16 19:23:54,111 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [390788087] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:23:54,111 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 19:23:54,111 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 19:23:54,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513911664] [2022-11-16 19:23:54,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:23:54,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 19:23:54,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-16 19:23:54,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 19:23:54,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 19:23:54,157 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 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 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) [2022-11-16 19:23:54,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:23:54,224 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-16 19:23:54,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 19:23:54,226 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-16 19:23:54,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:23:54,234 INFO L225 Difference]: With dead ends: 20 [2022-11-16 19:23:54,234 INFO L226 Difference]: Without dead ends: 11 [2022-11-16 19:23:54,237 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 19:23:54,241 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 19:23:54,244 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 19:23:54,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-16 19:23:54,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-16 19:23:54,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 19:23:54,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-16 19:23:54,277 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-16 19:23:54,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:23:54,278 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-16 19:23:54,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) [2022-11-16 19:23:54,278 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-16 19:23:54,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-16 19:23:54,278 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:23:54,278 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-16 19:23:54,287 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-11-16 19:23:54,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 19:23:54,480 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 19:23:54,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:23:54,480 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-16 19:23:54,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-16 19:23:54,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1213098767] [2022-11-16 19:23:54,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:23:54,482 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 19:23:54,482 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/mathsat [2022-11-16 19:23:54,483 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 19:23:54,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-16 19:23:54,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:23:54,646 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 27 conjunts are in the unsatisfiable core [2022-11-16 19:23:54,649 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 19:23:54,791 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:23:54,791 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 19:23:55,254 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:23:55,254 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-16 19:23:55,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1213098767] [2022-11-16 19:23:55,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1213098767] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 19:23:55,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [836955100] [2022-11-16 19:23:55,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:23:55,255 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-16 19:23:55,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/cvc4 [2022-11-16 19:23:55,259 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-16 19:23:55,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2022-11-16 19:23:55,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:23:55,508 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 27 conjunts are in the unsatisfiable core [2022-11-16 19:23:55,511 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 19:23:55,600 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:23:55,601 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 19:23:55,852 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:23:55,853 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [836955100] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 19:23:55,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [29407086] [2022-11-16 19:23:55,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:23:55,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 19:23:55,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 19:23:55,863 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 19:23:55,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-16 19:23:55,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:23:55,997 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 30 conjunts are in the unsatisfiable core [2022-11-16 19:23:56,000 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 19:23:56,146 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:23:56,147 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 19:23:56,490 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:23:56,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [29407086] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 19:23:56,495 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-16 19:23:56,496 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 6, 6] total 10 [2022-11-16 19:23:56,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116012659] [2022-11-16 19:23:56,497 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-16 19:23:56,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 19:23:56,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-16 19:23:56,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 19:23:56,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-16 19:23:56,500 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 10 states, 10 states have (on average 1.8) internal successors, (18), 10 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) [2022-11-16 19:23:56,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:23:56,598 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-11-16 19:23:56,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 19:23:56,599 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.8) internal successors, (18), 10 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 8 [2022-11-16 19:23:56,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:23:56,600 INFO L225 Difference]: With dead ends: 16 [2022-11-16 19:23:56,600 INFO L226 Difference]: Without dead ends: 14 [2022-11-16 19:23:56,600 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 30 SyntacticMatches, 4 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-11-16 19:23:56,601 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 14 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 10 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 19:23:56,602 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 17 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 10 Unchecked, 0.0s Time] [2022-11-16 19:23:56,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-16 19:23:56,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-11-16 19:23:56,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 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) [2022-11-16 19:23:56,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-11-16 19:23:56,605 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-11-16 19:23:56,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:23:56,606 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-11-16 19:23:56,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.8) internal successors, (18), 10 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) [2022-11-16 19:23:56,606 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-11-16 19:23:56,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-16 19:23:56,606 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:23:56,607 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-16 19:23:56,616 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2022-11-16 19:23:56,814 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-16 19:23:57,017 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-16 19:23:57,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/cvc4 --incremental --print-success --lang smt,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 19:23:57,210 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 19:23:57,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:23:57,211 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-11-16 19:23:57,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-16 19:23:57,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1355180122] [2022-11-16 19:23:57,212 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 19:23:57,212 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 19:23:57,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/mathsat [2022-11-16 19:23:57,214 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 19:23:57,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-16 19:23:57,392 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 19:23:57,392 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 19:23:57,400 INFO L263 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 48 conjunts are in the unsatisfiable core [2022-11-16 19:23:57,404 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 19:23:57,641 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:23:57,641 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 19:23:59,312 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:23:59,313 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-16 19:23:59,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1355180122] [2022-11-16 19:23:59,313 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1355180122] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 19:23:59,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1478871475] [2022-11-16 19:23:59,314 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 19:23:59,314 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-16 19:23:59,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/cvc4 [2022-11-16 19:23:59,315 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-16 19:23:59,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2022-11-16 19:23:59,613 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 19:23:59,613 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 19:23:59,621 INFO L263 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 43 conjunts are in the unsatisfiable core [2022-11-16 19:23:59,624 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 19:23:59,928 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:23:59,928 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 19:24:00,886 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:24:00,887 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1478871475] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 19:24:00,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1506227039] [2022-11-16 19:24:00,888 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 19:24:00,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 19:24:00,888 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 19:24:00,890 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 19:24:00,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-16 19:24:01,054 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 19:24:01,054 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 19:24:01,058 INFO L263 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 58 conjunts are in the unsatisfiable core [2022-11-16 19:24:01,065 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 19:24:01,319 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:24:01,320 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 19:24:02,217 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:24:02,217 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1506227039] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 19:24:02,218 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-16 19:24:02,218 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 7, 7] total 19 [2022-11-16 19:24:02,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790533099] [2022-11-16 19:24:02,218 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-16 19:24:02,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-16 19:24:02,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-16 19:24:02,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-16 19:24:02,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=231, Unknown=0, NotChecked=0, Total=342 [2022-11-16 19:24:02,221 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 19 states, 19 states have (on average 2.210526315789474) internal successors, (42), 19 states have internal predecessors, (42), 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) [2022-11-16 19:24:02,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:24:02,443 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions. [2022-11-16 19:24:02,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 19:24:02,447 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.210526315789474) internal successors, (42), 19 states have internal predecessors, (42), 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 11 [2022-11-16 19:24:02,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:24:02,448 INFO L225 Difference]: With dead ends: 22 [2022-11-16 19:24:02,448 INFO L226 Difference]: Without dead ends: 20 [2022-11-16 19:24:02,449 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 40 SyntacticMatches, 4 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=166, Invalid=340, Unknown=0, NotChecked=0, Total=506 [2022-11-16 19:24:02,450 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 30 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 43 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 19:24:02,451 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 29 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 43 Unchecked, 0.1s Time] [2022-11-16 19:24:02,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-11-16 19:24:02,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 18. [2022-11-16 19:24:02,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.0588235294117647) internal successors, (18), 17 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) [2022-11-16 19:24:02,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2022-11-16 19:24:02,456 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 11 [2022-11-16 19:24:02,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:24:02,456 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2022-11-16 19:24:02,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.210526315789474) internal successors, (42), 19 states have internal predecessors, (42), 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) [2022-11-16 19:24:02,457 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2022-11-16 19:24:02,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-16 19:24:02,457 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:24:02,458 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1] [2022-11-16 19:24:02,474 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2022-11-16 19:24:02,674 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-16 19:24:02,872 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2022-11-16 19:24:03,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/cvc4 --incremental --print-success --lang smt [2022-11-16 19:24:03,070 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 19:24:03,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:24:03,070 INFO L85 PathProgramCache]: Analyzing trace with hash -1250702327, now seen corresponding path program 3 times [2022-11-16 19:24:03,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-16 19:24:03,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1813665622] [2022-11-16 19:24:03,072 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 19:24:03,072 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 19:24:03,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/mathsat [2022-11-16 19:24:03,077 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 19:24:03,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-16 19:24:03,318 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-11-16 19:24:03,319 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 19:24:03,330 INFO L263 TraceCheckSpWp]: Trace formula consists of 561 conjuncts, 123 conjunts are in the unsatisfiable core [2022-11-16 19:24:03,336 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 19:24:04,574 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:24:04,574 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 19:24:13,275 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:24:13,278 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-16 19:24:13,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1813665622] [2022-11-16 19:24:13,280 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1813665622] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 19:24:13,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1498078783] [2022-11-16 19:24:13,280 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 19:24:13,280 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-16 19:24:13,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/cvc4 [2022-11-16 19:24:13,282 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-16 19:24:13,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2022-11-16 19:24:13,692 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-11-16 19:24:13,692 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 19:24:13,701 INFO L263 TraceCheckSpWp]: Trace formula consists of 561 conjuncts, 102 conjunts are in the unsatisfiable core [2022-11-16 19:24:13,706 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 19:24:14,290 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:24:14,291 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 19:24:18,227 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:24:18,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1498078783] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 19:24:18,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1572763600] [2022-11-16 19:24:18,229 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 19:24:18,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 19:24:18,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 19:24:18,230 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 19:24:18,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-16 19:24:18,470 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-11-16 19:24:18,470 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 19:24:18,476 INFO L263 TraceCheckSpWp]: Trace formula consists of 561 conjuncts, 101 conjunts are in the unsatisfiable core [2022-11-16 19:24:18,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 19:24:18,985 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:24:18,986 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 19:24:21,671 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:24:21,671 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1572763600] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 19:24:21,671 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-16 19:24:21,672 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 8, 8, 9, 9] total 30 [2022-11-16 19:24:21,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221707501] [2022-11-16 19:24:21,676 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-16 19:24:21,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-11-16 19:24:21,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-16 19:24:21,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-11-16 19:24:21,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=189, Invalid=681, Unknown=0, NotChecked=0, Total=870 [2022-11-16 19:24:21,678 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand has 30 states, 30 states have (on average 2.1666666666666665) internal successors, (65), 30 states have internal predecessors, (65), 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) [2022-11-16 19:24:22,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:24:22,236 INFO L93 Difference]: Finished difference Result 31 states and 33 transitions. [2022-11-16 19:24:22,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 19:24:22,244 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 2.1666666666666665) internal successors, (65), 30 states have internal predecessors, (65), 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 [2022-11-16 19:24:22,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:24:22,245 INFO L225 Difference]: With dead ends: 31 [2022-11-16 19:24:22,245 INFO L226 Difference]: Without dead ends: 29 [2022-11-16 19:24:22,246 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 66 SyntacticMatches, 6 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 580 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=369, Invalid=1037, Unknown=0, NotChecked=0, Total=1406 [2022-11-16 19:24:22,251 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 81 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 97 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 19:24:22,252 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 40 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 35 Invalid, 0 Unknown, 97 Unchecked, 0.1s Time] [2022-11-16 19:24:22,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-11-16 19:24:22,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 27. [2022-11-16 19:24:22,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.0384615384615385) internal successors, (27), 26 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 19:24:22,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2022-11-16 19:24:22,268 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 17 [2022-11-16 19:24:22,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:24:22,269 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2022-11-16 19:24:22,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 2.1666666666666665) internal successors, (65), 30 states have internal predecessors, (65), 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) [2022-11-16 19:24:22,271 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2022-11-16 19:24:22,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-16 19:24:22,274 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:24:22,274 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 1, 1, 1, 1] [2022-11-16 19:24:22,291 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2022-11-16 19:24:22,491 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2022-11-16 19:24:22,693 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-16 19:24:22,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/cvc4 --incremental --print-success --lang smt,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 19:24:22,888 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 19:24:22,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:24:22,889 INFO L85 PathProgramCache]: Analyzing trace with hash -752690141, now seen corresponding path program 4 times [2022-11-16 19:24:22,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-16 19:24:22,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [15408028] [2022-11-16 19:24:22,890 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-16 19:24:22,890 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 19:24:22,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/mathsat [2022-11-16 19:24:22,891 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 19:24:22,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-11-16 19:24:23,226 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-16 19:24:23,226 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 19:24:23,242 INFO L263 TraceCheckSpWp]: Trace formula consists of 924 conjuncts, 256 conjunts are in the unsatisfiable core [2022-11-16 19:24:23,251 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 19:24:25,145 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:24:25,146 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 19:25:16,863 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:25:16,864 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-16 19:25:16,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [15408028] [2022-11-16 19:25:16,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [15408028] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 19:25:16,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1480046462] [2022-11-16 19:25:16,865 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-16 19:25:16,865 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-16 19:25:16,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/cvc4 [2022-11-16 19:25:16,871 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-16 19:25:16,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2022-11-16 19:25:17,511 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-16 19:25:17,511 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 19:25:17,529 INFO L263 TraceCheckSpWp]: Trace formula consists of 924 conjuncts, 235 conjunts are in the unsatisfiable core [2022-11-16 19:25:17,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 19:25:18,993 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:25:18,993 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 19:26:04,209 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:26:04,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1480046462] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 19:26:04,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1375961629] [2022-11-16 19:26:04,209 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-16 19:26:04,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 19:26:04,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 19:26:04,211 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 19:26:04,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-16 19:26:04,475 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-16 19:26:04,475 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 19:26:04,486 INFO L263 TraceCheckSpWp]: Trace formula consists of 924 conjuncts, 268 conjunts are in the unsatisfiable core [2022-11-16 19:26:04,495 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 19:26:05,872 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:26:05,873 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 19:26:45,658 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:26:45,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1375961629] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 19:26:45,663 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-16 19:26:45,663 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11, 11, 12, 12] total 33 [2022-11-16 19:26:45,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572631388] [2022-11-16 19:26:45,663 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-16 19:26:45,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-11-16 19:26:45,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-16 19:26:45,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-11-16 19:26:45,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=313, Invalid=743, Unknown=0, NotChecked=0, Total=1056 [2022-11-16 19:26:45,667 INFO L87 Difference]: Start difference. First operand 27 states and 27 transitions. Second operand has 33 states, 33 states have (on average 2.606060606060606) internal successors, (86), 33 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) [2022-11-16 19:26:46,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:26:46,121 INFO L93 Difference]: Finished difference Result 37 states and 38 transitions. [2022-11-16 19:26:46,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-16 19:26:46,122 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 2.606060606060606) internal successors, (86), 33 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) Word has length 26 [2022-11-16 19:26:46,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:26:46,122 INFO L225 Difference]: With dead ends: 37 [2022-11-16 19:26:46,122 INFO L226 Difference]: Without dead ends: 35 [2022-11-16 19:26:46,123 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 118 SyntacticMatches, 9 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 678 ImplicationChecksByTransitivity, 22.5s TimeCoverageRelationStatistics Valid=518, Invalid=1204, Unknown=0, NotChecked=0, Total=1722 [2022-11-16 19:26:46,124 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 48 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 57 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 19:26:46,125 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 37 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 25 Invalid, 0 Unknown, 57 Unchecked, 0.1s Time] [2022-11-16 19:26:46,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-11-16 19:26:46,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 33. [2022-11-16 19:26:46,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 32 states have (on average 1.03125) internal successors, (33), 32 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) [2022-11-16 19:26:46,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 33 transitions. [2022-11-16 19:26:46,133 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 33 transitions. Word has length 26 [2022-11-16 19:26:46,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:26:46,133 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 33 transitions. [2022-11-16 19:26:46,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 2.606060606060606) internal successors, (86), 33 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) [2022-11-16 19:26:46,134 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 33 transitions. [2022-11-16 19:26:46,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 19:26:46,134 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:26:46,134 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 1, 1, 1, 1] [2022-11-16 19:26:46,142 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2022-11-16 19:26:46,351 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2022-11-16 19:26:46,546 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2022-11-16 19:26:46,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/cvc4 --incremental --print-success --lang smt [2022-11-16 19:26:46,742 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 19:26:46,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:26:46,743 INFO L85 PathProgramCache]: Analyzing trace with hash -1442555293, now seen corresponding path program 5 times [2022-11-16 19:26:46,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-16 19:26:46,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1622724628] [2022-11-16 19:26:46,743 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-16 19:26:46,744 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 19:26:46,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/mathsat [2022-11-16 19:26:46,744 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 19:26:46,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-11-16 19:26:47,245 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) [2022-11-16 19:26:47,245 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 19:26:47,267 INFO L263 TraceCheckSpWp]: Trace formula consists of 1166 conjuncts, 352 conjunts are in the unsatisfiable core [2022-11-16 19:26:47,273 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 19:26:49,312 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 123 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-16 19:26:49,312 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 19:28:17,897 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 123 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-16 19:28:17,898 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-16 19:28:17,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1622724628] [2022-11-16 19:28:17,898 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1622724628] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 19:28:17,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [788420899] [2022-11-16 19:28:17,899 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-16 19:28:17,899 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-16 19:28:17,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/cvc4 [2022-11-16 19:28:17,901 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-16 19:28:17,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2022-11-16 19:28:18,923 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) [2022-11-16 19:28:18,923 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 19:28:18,966 INFO L263 TraceCheckSpWp]: Trace formula consists of 1166 conjuncts, 329 conjunts are in the unsatisfiable core [2022-11-16 19:28:18,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 19:28:20,867 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 123 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-16 19:28:20,867 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 19:29:35,278 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 123 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-16 19:29:35,278 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [788420899] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 19:29:35,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2010222379] [2022-11-16 19:29:35,279 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-16 19:29:35,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 19:29:35,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 19:29:35,281 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 19:29:35,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-11-16 19:29:35,704 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) [2022-11-16 19:29:35,704 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 19:29:35,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 1166 conjuncts, 382 conjunts are in the unsatisfiable core [2022-11-16 19:29:35,725 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 19:29:37,692 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 123 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-16 19:29:37,692 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 19:30:55,227 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 123 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-16 19:30:55,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2010222379] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 19:30:55,227 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-16 19:30:55,228 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12, 12, 13, 13] total 36 [2022-11-16 19:30:55,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915824583] [2022-11-16 19:30:55,228 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-16 19:30:55,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-11-16 19:30:55,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-16 19:30:55,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-11-16 19:30:55,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=365, Invalid=895, Unknown=0, NotChecked=0, Total=1260 [2022-11-16 19:30:55,230 INFO L87 Difference]: Start difference. First operand 33 states and 33 transitions. Second operand has 36 states, 36 states have (on average 2.7222222222222223) internal successors, (98), 36 states have internal predecessors, (98), 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) [2022-11-16 19:30:55,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:30:55,373 INFO L93 Difference]: Finished difference Result 36 states and 37 transitions. [2022-11-16 19:30:55,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 19:30:55,376 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 2.7222222222222223) internal successors, (98), 36 states have internal predecessors, (98), 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 32 [2022-11-16 19:30:55,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:30:55,376 INFO L225 Difference]: With dead ends: 36 [2022-11-16 19:30:55,377 INFO L226 Difference]: Without dead ends: 0 [2022-11-16 19:30:55,378 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 138 SyntacticMatches, 17 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 830 ImplicationChecksByTransitivity, 33.2s TimeCoverageRelationStatistics Valid=424, Invalid=982, Unknown=0, NotChecked=0, Total=1406 [2022-11-16 19:30:55,378 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 13 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 13 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 19:30:55,379 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 7 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 13 Unchecked, 0.0s Time] [2022-11-16 19:30:55,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-16 19:30:55,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-16 19:30:55,380 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) [2022-11-16 19:30:55,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-16 19:30:55,380 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2022-11-16 19:30:55,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:30:55,381 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 19:30:55,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 2.7222222222222223) internal successors, (98), 36 states have internal predecessors, (98), 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) [2022-11-16 19:30:55,381 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-16 19:30:55,382 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-16 19:30:55,385 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-16 19:30:55,403 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-11-16 19:30:55,600 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/cvc4 --incremental --print-success --lang smt (16)] Forceful destruction successful, exit code 0 [2022-11-16 19:30:55,809 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-11-16 19:30:55,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/cvc4 --incremental --print-success --lang smt,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 19:30:55,997 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-16 19:30:56,267 INFO L895 garLoopResultBuilder]: At program point L225(lines 22 226) the Hoare annotation is: false [2022-11-16 19:30:56,267 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-16 19:30:56,267 INFO L895 garLoopResultBuilder]: At program point L91-2(lines 91 224) the Hoare annotation is: (let ((.cse0 (= (_ bv1 8) |ULTIMATE.start_main_~mask_SORT_1~0#1|)) (.cse1 (= (_ bv1 8) |ULTIMATE.start_main_~var_21~0#1|)) (.cse2 (= |ULTIMATE.start_main_~var_12~0#1| (_ bv0 32)))) (or (and (= |ULTIMATE.start_main_~var_7~0#1| |ULTIMATE.start_main_~state_57~0#1|) .cse0 (= |ULTIMATE.start_main_~var_7~0#1| |ULTIMATE.start_main_~state_27~0#1|) (= |ULTIMATE.start_main_~state_42~0#1| |ULTIMATE.start_main_~state_14~0#1|) (= |ULTIMATE.start_main_~var_7~0#1| |ULTIMATE.start_main_~state_61~0#1|) (= |ULTIMATE.start_main_~var_7~0#1| |ULTIMATE.start_main_~state_25~0#1|) .cse1 (= |ULTIMATE.start_main_~var_7~0#1| |ULTIMATE.start_main_~state_42~0#1|) .cse2 (= (_ bv0 8) |ULTIMATE.start_main_~state_14~0#1|)) (let ((.cse6 ((_ extract 7 0) ((_ zero_extend 24) |ULTIMATE.start_main_~var_7~0#1|)))) (let ((.cse7 ((_ zero_extend 24) .cse6)) (.cse4 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_1~0#1|))) (let ((.cse3 ((_ extract 7 0) (bvand .cse7 .cse4))) (.cse5 ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) .cse7)))) .cse4)))) (and .cse0 (= |ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)) (= .cse3 |ULTIMATE.start_main_~state_57~0#1|) (= ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |ULTIMATE.start_main_~var_21~0#1|))) .cse4)) |ULTIMATE.start_main_~state_25~0#1|) (= .cse3 |ULTIMATE.start_main_~state_61~0#1|) (= .cse5 |ULTIMATE.start_main_~state_42~0#1|) (= |ULTIMATE.start_main_~var_7~0#1| (_ bv0 8)) (= .cse6 |ULTIMATE.start_main_~state_14~0#1|) .cse1 (= .cse5 |ULTIMATE.start_main_~state_27~0#1|) .cse2)))))) [2022-11-16 19:30:56,267 INFO L899 garLoopResultBuilder]: For program point L91-3(lines 91 224) no Hoare annotation was computed. [2022-11-16 19:30:56,267 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-16 19:30:56,267 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-16 19:30:56,268 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-16 19:30:56,268 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 20) no Hoare annotation was computed. [2022-11-16 19:30:56,268 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2022-11-16 19:30:56,268 INFO L899 garLoopResultBuilder]: For program point L20-1(line 20) no Hoare annotation was computed. [2022-11-16 19:30:56,268 INFO L899 garLoopResultBuilder]: For program point L20-3(line 20) no Hoare annotation was computed. [2022-11-16 19:30:56,271 INFO L444 BasicCegarLoop]: Path program histogram: [5, 1] [2022-11-16 19:30:56,274 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 19:30:56,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 07:30:56 BoogieIcfgContainer [2022-11-16 19:30:56,304 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 19:30:56,305 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 19:30:56,305 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 19:30:56,305 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 19:30:56,306 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 07:23:53" (3/4) ... [2022-11-16 19:30:56,310 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-16 19:30:56,335 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-16 19:30:56,335 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-16 19:30:56,336 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 19:30:56,419 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/witness.graphml [2022-11-16 19:30:56,419 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 19:30:56,420 INFO L158 Benchmark]: Toolchain (without parser) took 424065.72ms. Allocated memory was 62.9MB in the beginning and 488.6MB in the end (delta: 425.7MB). Free memory was 42.7MB in the beginning and 379.6MB in the end (delta: -337.0MB). Peak memory consumption was 87.9MB. Max. memory is 16.1GB. [2022-11-16 19:30:56,420 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 62.9MB. Free memory is still 44.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 19:30:56,421 INFO L158 Benchmark]: CACSL2BoogieTranslator took 426.82ms. Allocated memory is still 62.9MB. Free memory was 42.5MB in the beginning and 44.5MB in the end (delta: -2.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-16 19:30:56,421 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.83ms. Allocated memory is still 62.9MB. Free memory was 44.3MB in the beginning and 42.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 19:30:56,422 INFO L158 Benchmark]: Boogie Preprocessor took 61.00ms. Allocated memory is still 62.9MB. Free memory was 42.0MB in the beginning and 40.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 19:30:56,422 INFO L158 Benchmark]: RCFGBuilder took 618.42ms. Allocated memory was 62.9MB in the beginning and 90.2MB in the end (delta: 27.3MB). Free memory was 40.1MB in the beginning and 65.1MB in the end (delta: -25.0MB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. [2022-11-16 19:30:56,423 INFO L158 Benchmark]: TraceAbstraction took 422764.72ms. Allocated memory was 90.2MB in the beginning and 488.6MB in the end (delta: 398.5MB). Free memory was 64.7MB in the beginning and 383.8MB in the end (delta: -319.1MB). Peak memory consumption was 80.0MB. Max. memory is 16.1GB. [2022-11-16 19:30:56,423 INFO L158 Benchmark]: Witness Printer took 114.57ms. Allocated memory is still 488.6MB. Free memory was 383.8MB in the beginning and 379.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-16 19:30:56,427 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 62.9MB. Free memory is still 44.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 426.82ms. Allocated memory is still 62.9MB. Free memory was 42.5MB in the beginning and 44.5MB in the end (delta: -2.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.83ms. Allocated memory is still 62.9MB. Free memory was 44.3MB in the beginning and 42.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.00ms. Allocated memory is still 62.9MB. Free memory was 42.0MB in the beginning and 40.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 618.42ms. Allocated memory was 62.9MB in the beginning and 90.2MB in the end (delta: 27.3MB). Free memory was 40.1MB in the beginning and 65.1MB in the end (delta: -25.0MB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. * TraceAbstraction took 422764.72ms. Allocated memory was 90.2MB in the beginning and 488.6MB in the end (delta: 398.5MB). Free memory was 64.7MB in the beginning and 383.8MB in the end (delta: -319.1MB). Peak memory consumption was 80.0MB. Max. memory is 16.1GB. * Witness Printer took 114.57ms. Allocated memory is still 488.6MB. Free memory was 383.8MB in the beginning and 379.6MB in the end (delta: 4.2MB). 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: 20]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 422.6s, OverallIterations: 6, TraceHistogramMax: 10, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 190 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 190 mSDsluCounter, 143 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 220 IncrementalHoareTripleChecker+Unchecked, 120 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 113 IncrementalHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 23 mSDtfsCounter, 113 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 580 GetRequests, 394 SyntacticMatches, 40 SemanticMatches, 146 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2311 ImplicationChecksByTransitivity, 65.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=5, InterpolantAutomatonStates: 52, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 10 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 13 NumberOfFragments, 112 HoareAnnotationTreeSize, 2 FomulaSimplifications, 486 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 910 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 1.1s SsaConstructionTime, 3.3s SatisfiabilityAnalysisTime, 411.8s InterpolantComputationTime, 287 NumberOfCodeBlocks, 287 NumberOfCodeBlocksAsserted, 58 NumberOfCheckSat, 538 ConstructedInterpolants, 223 QuantifiedInterpolants, 42288 SizeOfPredicates, 2503 NumberOfNonLiveVariables, 9581 ConjunctsInSsa, 2401 ConjunctsInUnsatCore, 31 InterpolantComputations, 1 PerfectInterpolantSequences, 18/1428 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: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 91]: Loop Invariant Derived loop invariant: (((((((((var_7 == state_57 && 1bv8 == mask_SORT_1) && var_7 == state_27) && state_42 == state_14) && var_7 == state_61) && var_7 == state_25) && 1bv8 == var_21) && var_7 == state_42) && var_12 == 0bv32) && 0bv8 == state_14) || ((((((((((1bv8 == mask_SORT_1 && cond == 1bv32) && ~bvand32(~zero_extendFrom16To32(~zero_extendFrom16To32(var_7)[7:0]), ~zero_extendFrom16To32(mask_SORT_1))[7:0] == state_57) && ~bvand32(~zero_extendFrom16To32(~zero_extendFrom16To32(var_21)[7:0]), ~zero_extendFrom16To32(mask_SORT_1))[7:0] == state_25) && ~bvand32(~zero_extendFrom16To32(~zero_extendFrom16To32(var_7)[7:0]), ~zero_extendFrom16To32(mask_SORT_1))[7:0] == state_61) && ~bvand32(~zero_extendFrom16To32(~zero_extendFrom16To32(~zero_extendFrom16To32(~zero_extendFrom16To32(var_7)[7:0])[7:0])[7:0]), ~zero_extendFrom16To32(mask_SORT_1))[7:0] == state_42) && var_7 == 0bv8) && ~zero_extendFrom16To32(var_7)[7:0] == state_14) && 1bv8 == var_21) && ~bvand32(~zero_extendFrom16To32(~zero_extendFrom16To32(~zero_extendFrom16To32(~zero_extendFrom16To32(var_7)[7:0])[7:0])[7:0]), ~zero_extendFrom16To32(mask_SORT_1))[7:0] == state_27) && var_12 == 0bv32) - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2022-11-16 19:30:56,563 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be5bb2a8-b39a-4c4a-8785-ad3653e9d404/bin/utaipan-Xvt2sAort0/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