./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.noninitstate.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a 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_2863a91a-716e-411e-b4bc-6fd81c907137/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2863a91a-716e-411e-b4bc-6fd81c907137/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2863a91a-716e-411e-b4bc-6fd81c907137/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2863a91a-716e-411e-b4bc-6fd81c907137/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.noninitstate.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2863a91a-716e-411e-b4bc-6fd81c907137/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2863a91a-716e-411e-b4bc-6fd81c907137/bin/utaipan-7li7fVZpFI --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 73e232604fc8babca2c5f057d102e5792a7cbb61e14baa729377b71bb6569c56 --- 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-5e519f3 [2022-11-03 01:42:35,623 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 01:42:35,627 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 01:42:35,687 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 01:42:35,687 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 01:42:35,691 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 01:42:35,693 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 01:42:35,699 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 01:42:35,701 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 01:42:35,706 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 01:42:35,707 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 01:42:35,710 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 01:42:35,710 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 01:42:35,712 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 01:42:35,715 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 01:42:35,716 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 01:42:35,718 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 01:42:35,719 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 01:42:35,720 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 01:42:35,728 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 01:42:35,729 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 01:42:35,730 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 01:42:35,734 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 01:42:35,735 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 01:42:35,746 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 01:42:35,747 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 01:42:35,747 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 01:42:35,749 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 01:42:35,750 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 01:42:35,751 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 01:42:35,752 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 01:42:35,754 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 01:42:35,756 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 01:42:35,758 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 01:42:35,759 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 01:42:35,759 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 01:42:35,760 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 01:42:35,760 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 01:42:35,761 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 01:42:35,762 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 01:42:35,762 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 01:42:35,765 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2863a91a-716e-411e-b4bc-6fd81c907137/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 01:42:35,804 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 01:42:35,805 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 01:42:35,805 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 01:42:35,806 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 01:42:35,806 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 01:42:35,807 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 01:42:35,807 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 01:42:35,807 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 01:42:35,807 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 01:42:35,808 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 01:42:35,809 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 01:42:35,809 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 01:42:35,809 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 01:42:35,809 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 01:42:35,810 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 01:42:35,810 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 01:42:35,810 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 01:42:35,810 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 01:42:35,811 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 01:42:35,811 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 01:42:35,812 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 01:42:35,812 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 01:42:35,812 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 01:42:35,812 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 01:42:35,812 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 01:42:35,813 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 01:42:35,813 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 01:42:35,813 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 01:42:35,813 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 01:42:35,813 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:42:35,814 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 01:42:35,814 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 01:42:35,814 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 01:42:35,815 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 01:42:35,815 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 01:42:35,815 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 01:42:35,815 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 01:42:35,815 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 01:42:35,816 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_2863a91a-716e-411e-b4bc-6fd81c907137/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2863a91a-716e-411e-b4bc-6fd81c907137/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 73e232604fc8babca2c5f057d102e5792a7cbb61e14baa729377b71bb6569c56 [2022-11-03 01:42:36,155 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 01:42:36,191 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 01:42:36,194 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 01:42:36,195 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 01:42:36,196 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 01:42:36,197 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2863a91a-716e-411e-b4bc-6fd81c907137/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.noninitstate.c [2022-11-03 01:42:36,287 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2863a91a-716e-411e-b4bc-6fd81c907137/bin/utaipan-7li7fVZpFI/data/04c04054f/575c907580cb4f72b55767c0ea67b114/FLAG50bea1622 [2022-11-03 01:42:36,800 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 01:42:36,805 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2863a91a-716e-411e-b4bc-6fd81c907137/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.noninitstate.c [2022-11-03 01:42:36,815 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2863a91a-716e-411e-b4bc-6fd81c907137/bin/utaipan-7li7fVZpFI/data/04c04054f/575c907580cb4f72b55767c0ea67b114/FLAG50bea1622 [2022-11-03 01:42:37,150 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2863a91a-716e-411e-b4bc-6fd81c907137/bin/utaipan-7li7fVZpFI/data/04c04054f/575c907580cb4f72b55767c0ea67b114 [2022-11-03 01:42:37,153 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 01:42:37,155 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 01:42:37,161 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 01:42:37,161 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 01:42:37,165 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 01:42:37,167 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:42:37" (1/1) ... [2022-11-03 01:42:37,168 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@250acd2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:42:37, skipping insertion in model container [2022-11-03 01:42:37,168 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:42:37" (1/1) ... [2022-11-03 01:42:37,177 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 01:42:37,206 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 01:42:37,390 WARN L230 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_2863a91a-716e-411e-b4bc-6fd81c907137/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.noninitstate.c[1117,1130] [2022-11-03 01:42:37,439 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:42:37,443 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 01:42:37,454 WARN L230 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_2863a91a-716e-411e-b4bc-6fd81c907137/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.noninitstate.c[1117,1130] [2022-11-03 01:42:37,470 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:42:37,485 INFO L208 MainTranslator]: Completed translation [2022-11-03 01:42:37,485 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:42:37 WrapperNode [2022-11-03 01:42:37,486 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 01:42:37,487 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 01:42:37,487 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 01:42:37,487 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 01:42:37,497 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:42:37" (1/1) ... [2022-11-03 01:42:37,504 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:42:37" (1/1) ... [2022-11-03 01:42:37,558 INFO L138 Inliner]: procedures = 11, calls = 4, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 70 [2022-11-03 01:42:37,558 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 01:42:37,559 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 01:42:37,559 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 01:42:37,559 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 01:42:37,570 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:42:37" (1/1) ... [2022-11-03 01:42:37,570 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:42:37" (1/1) ... [2022-11-03 01:42:37,573 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:42:37" (1/1) ... [2022-11-03 01:42:37,573 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:42:37" (1/1) ... [2022-11-03 01:42:37,579 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:42:37" (1/1) ... [2022-11-03 01:42:37,584 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:42:37" (1/1) ... [2022-11-03 01:42:37,585 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:42:37" (1/1) ... [2022-11-03 01:42:37,587 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:42:37" (1/1) ... [2022-11-03 01:42:37,589 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 01:42:37,591 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 01:42:37,591 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 01:42:37,591 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 01:42:37,592 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:42:37" (1/1) ... [2022-11-03 01:42:37,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:42:37,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2863a91a-716e-411e-b4bc-6fd81c907137/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:42:37,647 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2863a91a-716e-411e-b4bc-6fd81c907137/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 01:42:37,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2863a91a-716e-411e-b4bc-6fd81c907137/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 01:42:37,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 01:42:37,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 01:42:37,797 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 01:42:37,799 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 01:42:37,993 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 01:42:38,106 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 01:42:38,106 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-03 01:42:38,109 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:42:38 BoogieIcfgContainer [2022-11-03 01:42:38,109 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 01:42:38,112 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 01:42:38,112 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 01:42:38,116 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 01:42:38,116 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:42:37" (1/3) ... [2022-11-03 01:42:38,117 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2593b601 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:42:38, skipping insertion in model container [2022-11-03 01:42:38,118 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:42:37" (2/3) ... [2022-11-03 01:42:38,118 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2593b601 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:42:38, skipping insertion in model container [2022-11-03 01:42:38,119 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:42:38" (3/3) ... [2022-11-03 01:42:38,120 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.noninitstate.c [2022-11-03 01:42:38,144 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 01:42:38,144 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 01:42:38,214 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 01:42:38,222 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;@74b67300, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 01:42:38,223 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 01:42:38,227 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) [2022-11-03 01:42:38,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-03 01:42:38,235 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:42:38,236 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-03 01:42:38,236 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:42:38,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:42:38,243 INFO L85 PathProgramCache]: Analyzing trace with hash 2496359, now seen corresponding path program 1 times [2022-11-03 01:42:38,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:42:38,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387591172] [2022-11-03 01:42:38,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:42:38,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:42:38,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 01:42:38,508 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-03 01:42:38,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 01:42:38,661 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-03 01:42:38,663 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-03 01:42:38,665 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-03 01:42:38,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 01:42:38,673 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-03 01:42:38,678 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-03 01:42:38,692 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-03 01:42:38,699 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 01:42:38 BoogieIcfgContainer [2022-11-03 01:42:38,699 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-03 01:42:38,700 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-03 01:42:38,700 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-03 01:42:38,700 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-03 01:42:38,701 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:42:38" (3/4) ... [2022-11-03 01:42:38,705 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-03 01:42:38,705 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-03 01:42:38,707 INFO L158 Benchmark]: Toolchain (without parser) took 1551.76ms. Allocated memory was 117.4MB in the beginning and 144.7MB in the end (delta: 27.3MB). Free memory was 75.2MB in the beginning and 118.5MB in the end (delta: -43.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 01:42:38,707 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 117.4MB. Free memory is still 91.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 01:42:38,708 INFO L158 Benchmark]: CACSL2BoogieTranslator took 325.47ms. Allocated memory is still 117.4MB. Free memory was 75.0MB in the beginning and 90.5MB in the end (delta: -15.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-03 01:42:38,709 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.49ms. Allocated memory is still 117.4MB. Free memory was 90.5MB in the beginning and 88.3MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 01:42:38,710 INFO L158 Benchmark]: Boogie Preprocessor took 30.79ms. Allocated memory is still 117.4MB. Free memory was 88.0MB in the beginning and 86.6MB in the end (delta: 1.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-03 01:42:38,711 INFO L158 Benchmark]: RCFGBuilder took 519.10ms. Allocated memory is still 117.4MB. Free memory was 86.6MB in the beginning and 66.6MB in the end (delta: 20.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-03 01:42:38,712 INFO L158 Benchmark]: TraceAbstraction took 587.72ms. Allocated memory was 117.4MB in the beginning and 144.7MB in the end (delta: 27.3MB). Free memory was 65.9MB in the beginning and 119.6MB in the end (delta: -53.7MB). Peak memory consumption was 26.8MB. Max. memory is 16.1GB. [2022-11-03 01:42:38,712 INFO L158 Benchmark]: Witness Printer took 5.33ms. Allocated memory is still 144.7MB. Free memory was 119.4MB in the beginning and 118.5MB in the end (delta: 920.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 01:42:38,717 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 117.4MB. Free memory is still 91.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 325.47ms. Allocated memory is still 117.4MB. Free memory was 75.0MB in the beginning and 90.5MB in the end (delta: -15.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 71.49ms. Allocated memory is still 117.4MB. Free memory was 90.5MB in the beginning and 88.3MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 30.79ms. Allocated memory is still 117.4MB. Free memory was 88.0MB in the beginning and 86.6MB in the end (delta: 1.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 519.10ms. Allocated memory is still 117.4MB. Free memory was 86.6MB in the beginning and 66.6MB in the end (delta: 20.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 587.72ms. Allocated memory was 117.4MB in the beginning and 144.7MB in the end (delta: 27.3MB). Free memory was 65.9MB in the beginning and 119.6MB in the end (delta: -53.7MB). Peak memory consumption was 26.8MB. Max. memory is 16.1GB. * Witness Printer took 5.33ms. Allocated memory is still 144.7MB. Free memory was 119.4MB in the beginning and 118.5MB in the end (delta: 920.3kB). Peak memory consumption was 2.1MB. 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: 21]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseComplement at line 49, overapproximation of bitwiseAnd at line 43. Possible FailurePath: [L26] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L27] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L29] const SORT_1 var_10 = 1; [L30] const SORT_1 var_13 = 0; [L32] SORT_1 input_2; [L34] SORT_1 state_3 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L35] SORT_1 state_4 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L36] SORT_1 state_11 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L38] SORT_1 init_12_arg_1 = var_10; [L39] state_11 = init_12_arg_1 VAL [init_12_arg_1=1, mask_SORT_1=1, msb_SORT_1=1, state_11=1, state_3=1, state_4=1, var_10=1, var_13=0] [L42] input_2 = __VERIFIER_nondet_uchar() [L43] input_2 = input_2 & mask_SORT_1 [L45] SORT_1 var_9_arg_0 = state_3; [L46] SORT_1 var_9_arg_1 = state_4; [L47] SORT_1 var_9 = var_9_arg_0 == var_9_arg_1; [L48] SORT_1 var_15_arg_0 = state_11; [L49] SORT_1 var_15_arg_1 = ~var_9; [L50] var_15_arg_1 = var_15_arg_1 & mask_SORT_1 [L51] SORT_1 var_15 = !var_15_arg_0 || var_15_arg_1; [L52] SORT_1 constr_16_arg_0 = var_15; [L53] CALL assume_abort_if_not(constr_16_arg_0) [L22] COND FALSE !(!cond) [L53] RET assume_abort_if_not(constr_16_arg_0) [L55] SORT_1 bad_17_arg_0 = var_9; [L56] CALL __VERIFIER_assert(!(bad_17_arg_0)) [L21] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L21] 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: 0.5s, 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 [2022-11-03 01:42:38,763 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2863a91a-716e-411e-b4bc-6fd81c907137/bin/utaipan-7li7fVZpFI/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 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_2863a91a-716e-411e-b4bc-6fd81c907137/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2863a91a-716e-411e-b4bc-6fd81c907137/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2863a91a-716e-411e-b4bc-6fd81c907137/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2863a91a-716e-411e-b4bc-6fd81c907137/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.noninitstate.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2863a91a-716e-411e-b4bc-6fd81c907137/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2863a91a-716e-411e-b4bc-6fd81c907137/bin/utaipan-7li7fVZpFI --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 73e232604fc8babca2c5f057d102e5792a7cbb61e14baa729377b71bb6569c56 --- 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-5e519f3 [2022-11-03 01:42:41,287 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 01:42:41,289 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 01:42:41,319 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 01:42:41,319 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 01:42:41,321 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 01:42:41,322 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 01:42:41,324 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 01:42:41,326 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 01:42:41,327 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 01:42:41,329 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 01:42:41,330 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 01:42:41,330 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 01:42:41,332 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 01:42:41,333 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 01:42:41,334 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 01:42:41,335 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 01:42:41,336 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 01:42:41,338 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 01:42:41,341 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 01:42:41,342 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 01:42:41,344 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 01:42:41,355 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 01:42:41,357 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 01:42:41,363 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 01:42:41,370 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 01:42:41,370 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 01:42:41,371 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 01:42:41,372 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 01:42:41,377 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 01:42:41,377 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 01:42:41,378 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 01:42:41,379 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 01:42:41,380 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 01:42:41,382 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 01:42:41,383 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 01:42:41,384 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 01:42:41,385 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 01:42:41,385 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 01:42:41,388 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 01:42:41,389 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 01:42:41,389 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2863a91a-716e-411e-b4bc-6fd81c907137/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-03 01:42:41,443 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 01:42:41,443 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 01:42:41,444 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 01:42:41,444 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 01:42:41,444 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 01:42:41,445 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 01:42:41,445 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 01:42:41,445 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 01:42:41,445 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 01:42:41,446 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 01:42:41,446 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 01:42:41,446 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 01:42:41,447 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 01:42:41,447 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 01:42:41,447 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 01:42:41,447 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 01:42:41,448 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 01:42:41,448 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-03 01:42:41,448 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-03 01:42:41,448 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-03 01:42:41,448 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 01:42:41,449 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 01:42:41,449 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 01:42:41,449 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 01:42:41,449 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-03 01:42:41,449 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 01:42:41,450 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:42:41,450 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 01:42:41,450 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 01:42:41,450 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 01:42:41,453 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-03 01:42:41,453 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-03 01:42:41,454 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 01:42:41,454 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 01:42:41,454 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-03 01:42:41,454 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_2863a91a-716e-411e-b4bc-6fd81c907137/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2863a91a-716e-411e-b4bc-6fd81c907137/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 73e232604fc8babca2c5f057d102e5792a7cbb61e14baa729377b71bb6569c56 [2022-11-03 01:42:41,917 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 01:42:41,956 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 01:42:41,960 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 01:42:41,962 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 01:42:41,963 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 01:42:41,964 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2863a91a-716e-411e-b4bc-6fd81c907137/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.noninitstate.c [2022-11-03 01:42:42,055 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2863a91a-716e-411e-b4bc-6fd81c907137/bin/utaipan-7li7fVZpFI/data/334a9fbd0/1c011f8a7d5649e6ae738fc05cc8002e/FLAGd9e667f63 [2022-11-03 01:42:42,751 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 01:42:42,753 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2863a91a-716e-411e-b4bc-6fd81c907137/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.noninitstate.c [2022-11-03 01:42:42,762 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2863a91a-716e-411e-b4bc-6fd81c907137/bin/utaipan-7li7fVZpFI/data/334a9fbd0/1c011f8a7d5649e6ae738fc05cc8002e/FLAGd9e667f63 [2022-11-03 01:42:43,091 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2863a91a-716e-411e-b4bc-6fd81c907137/bin/utaipan-7li7fVZpFI/data/334a9fbd0/1c011f8a7d5649e6ae738fc05cc8002e [2022-11-03 01:42:43,094 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 01:42:43,096 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 01:42:43,098 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 01:42:43,098 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 01:42:43,102 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 01:42:43,103 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:42:43" (1/1) ... [2022-11-03 01:42:43,104 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62653f4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:42:43, skipping insertion in model container [2022-11-03 01:42:43,105 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:42:43" (1/1) ... [2022-11-03 01:42:43,113 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 01:42:43,130 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 01:42:43,259 WARN L230 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_2863a91a-716e-411e-b4bc-6fd81c907137/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.noninitstate.c[1117,1130] [2022-11-03 01:42:43,297 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:42:43,302 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 01:42:43,369 WARN L230 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_2863a91a-716e-411e-b4bc-6fd81c907137/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.noninitstate.c[1117,1130] [2022-11-03 01:42:43,394 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:42:43,415 INFO L208 MainTranslator]: Completed translation [2022-11-03 01:42:43,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:42:43 WrapperNode [2022-11-03 01:42:43,416 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 01:42:43,417 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 01:42:43,417 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 01:42:43,417 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 01:42:43,426 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:42:43" (1/1) ... [2022-11-03 01:42:43,434 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:42:43" (1/1) ... [2022-11-03 01:42:43,472 INFO L138 Inliner]: procedures = 11, calls = 4, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 70 [2022-11-03 01:42:43,472 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 01:42:43,473 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 01:42:43,473 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 01:42:43,473 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 01:42:43,482 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:42:43" (1/1) ... [2022-11-03 01:42:43,482 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:42:43" (1/1) ... [2022-11-03 01:42:43,484 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:42:43" (1/1) ... [2022-11-03 01:42:43,485 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:42:43" (1/1) ... [2022-11-03 01:42:43,490 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:42:43" (1/1) ... [2022-11-03 01:42:43,494 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:42:43" (1/1) ... [2022-11-03 01:42:43,495 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:42:43" (1/1) ... [2022-11-03 01:42:43,497 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:42:43" (1/1) ... [2022-11-03 01:42:43,499 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 01:42:43,500 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 01:42:43,500 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 01:42:43,500 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 01:42:43,501 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:42:43" (1/1) ... [2022-11-03 01:42:43,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:42:43,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2863a91a-716e-411e-b4bc-6fd81c907137/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:42:43,534 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2863a91a-716e-411e-b4bc-6fd81c907137/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 01:42:43,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2863a91a-716e-411e-b4bc-6fd81c907137/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 01:42:43,594 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 01:42:43,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 01:42:43,687 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 01:42:43,690 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 01:42:43,852 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 01:42:43,859 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 01:42:43,860 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-03 01:42:43,862 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:42:43 BoogieIcfgContainer [2022-11-03 01:42:43,862 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 01:42:43,864 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 01:42:43,864 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 01:42:43,868 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 01:42:43,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:42:43" (1/3) ... [2022-11-03 01:42:43,869 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9bcf258 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:42:43, skipping insertion in model container [2022-11-03 01:42:43,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:42:43" (2/3) ... [2022-11-03 01:42:43,869 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9bcf258 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:42:43, skipping insertion in model container [2022-11-03 01:42:43,870 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:42:43" (3/3) ... [2022-11-03 01:42:43,871 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.noninitstate.c [2022-11-03 01:42:43,891 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 01:42:43,891 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 01:42:43,942 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 01:42:43,973 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;@16ac7bab, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 01:42:43,977 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 01:42:43,983 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 16 states have internal predecessors, (22), 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) [2022-11-03 01:42:43,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-03 01:42:43,991 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:42:43,991 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:42:43,992 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:42:44,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:42:44,003 INFO L85 PathProgramCache]: Analyzing trace with hash 1809708109, now seen corresponding path program 1 times [2022-11-03 01:42:44,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:42:44,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1903847923] [2022-11-03 01:42:44,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:42:44,018 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:42:44,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2863a91a-716e-411e-b4bc-6fd81c907137/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:42:44,027 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2863a91a-716e-411e-b4bc-6fd81c907137/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:42:44,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2863a91a-716e-411e-b4bc-6fd81c907137/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-03 01:42:44,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:42:44,149 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-03 01:42:44,153 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:42:44,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 01:42:44,174 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:42:44,175 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 01:42:44,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1903847923] [2022-11-03 01:42:44,176 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1903847923] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:42:44,177 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:42:44,177 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 01:42:44,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323220322] [2022-11-03 01:42:44,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:42:44,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 01:42:44,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 01:42:44,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 01:42:44,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 01:42:44,218 INFO L87 Difference]: Start difference. First operand has 17 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 16 states have internal predecessors, (22), 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 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2022-11-03 01:42:44,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:42:44,247 INFO L93 Difference]: Finished difference Result 28 states and 39 transitions. [2022-11-03 01:42:44,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-03 01:42:44,249 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2022-11-03 01:42:44,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:42:44,269 INFO L225 Difference]: With dead ends: 28 [2022-11-03 01:42:44,269 INFO L226 Difference]: Without dead ends: 13 [2022-11-03 01:42:44,282 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 01:42:44,286 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 01:42:44,287 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 01:42:44,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2022-11-03 01:42:44,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2022-11-03 01:42:44,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.25) internal successors, (15), 12 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 01:42:44,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2022-11-03 01:42:44,331 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 7 [2022-11-03 01:42:44,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:42:44,332 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 15 transitions. [2022-11-03 01:42:44,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2022-11-03 01:42:44,333 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2022-11-03 01:42:44,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-03 01:42:44,334 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:42:44,334 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:42:44,347 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2863a91a-716e-411e-b4bc-6fd81c907137/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-03 01:42:44,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2863a91a-716e-411e-b4bc-6fd81c907137/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 01:42:44,547 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:42:44,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:42:44,549 INFO L85 PathProgramCache]: Analyzing trace with hash 1809767691, now seen corresponding path program 1 times [2022-11-03 01:42:44,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:42:44,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1446904034] [2022-11-03 01:42:44,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:42:44,551 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:42:44,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2863a91a-716e-411e-b4bc-6fd81c907137/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:42:44,552 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2863a91a-716e-411e-b4bc-6fd81c907137/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:42:44,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2863a91a-716e-411e-b4bc-6fd81c907137/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-03 01:42:44,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:42:44,641 WARN L261 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-03 01:42:44,645 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:42:45,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 01:42:45,156 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:42:45,157 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 01:42:45,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1446904034] [2022-11-03 01:42:45,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1446904034] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:42:45,158 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:42:45,158 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 01:42:45,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161024337] [2022-11-03 01:42:45,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:42:45,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 01:42:45,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 01:42:45,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 01:42:45,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 01:42:45,162 INFO L87 Difference]: Start difference. First operand 13 states and 15 transitions. Second operand has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 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) [2022-11-03 01:42:45,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:42:45,347 INFO L93 Difference]: Finished difference Result 27 states and 31 transitions. [2022-11-03 01:42:45,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-03 01:42:45,348 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 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 7 [2022-11-03 01:42:45,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:42:45,349 INFO L225 Difference]: With dead ends: 27 [2022-11-03 01:42:45,349 INFO L226 Difference]: Without dead ends: 25 [2022-11-03 01:42:45,350 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-03 01:42:45,351 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 36 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 01:42:45,352 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 54 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 01:42:45,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-11-03 01:42:45,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 17. [2022-11-03 01:42:45,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.1875) internal successors, (19), 16 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 01:42:45,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2022-11-03 01:42:45,357 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 7 [2022-11-03 01:42:45,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:42:45,357 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2022-11-03 01:42:45,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 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) [2022-11-03 01:42:45,358 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2022-11-03 01:42:45,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-03 01:42:45,358 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:42:45,359 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:42:45,375 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2863a91a-716e-411e-b4bc-6fd81c907137/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-03 01:42:45,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2863a91a-716e-411e-b4bc-6fd81c907137/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 01:42:45,570 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:42:45,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:42:45,571 INFO L85 PathProgramCache]: Analyzing trace with hash -505452227, now seen corresponding path program 1 times [2022-11-03 01:42:45,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:42:45,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1017346581] [2022-11-03 01:42:45,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:42:45,573 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:42:45,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2863a91a-716e-411e-b4bc-6fd81c907137/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:42:45,574 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2863a91a-716e-411e-b4bc-6fd81c907137/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:42:45,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2863a91a-716e-411e-b4bc-6fd81c907137/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-03 01:42:45,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 01:42:45,637 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-03 01:42:45,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 01:42:45,722 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-11-03 01:42:45,722 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-03 01:42:45,724 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-03 01:42:45,742 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2863a91a-716e-411e-b4bc-6fd81c907137/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-03 01:42:45,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2863a91a-716e-411e-b4bc-6fd81c907137/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 01:42:45,941 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-03 01:42:45,945 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-03 01:42:45,983 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-03 01:42:45,984 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-03 01:42:45,996 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 01:42:45 BoogieIcfgContainer [2022-11-03 01:42:45,996 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-03 01:42:45,997 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-03 01:42:45,997 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-03 01:42:45,998 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-03 01:42:45,999 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:42:43" (3/4) ... [2022-11-03 01:42:46,000 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-03 01:42:46,009 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-03 01:42:46,009 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-03 01:42:46,058 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2863a91a-716e-411e-b4bc-6fd81c907137/bin/utaipan-7li7fVZpFI/witness.graphml [2022-11-03 01:42:46,059 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-03 01:42:46,060 INFO L158 Benchmark]: Toolchain (without parser) took 2963.55ms. Allocated memory was 67.1MB in the beginning and 94.4MB in the end (delta: 27.3MB). Free memory was 45.3MB in the beginning and 68.5MB in the end (delta: -23.3MB). Peak memory consumption was 3.4MB. Max. memory is 16.1GB. [2022-11-03 01:42:46,060 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 67.1MB. Free memory is still 47.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 01:42:46,061 INFO L158 Benchmark]: CACSL2BoogieTranslator took 318.72ms. Allocated memory is still 67.1MB. Free memory was 45.2MB in the beginning and 48.9MB in the end (delta: -3.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-03 01:42:46,061 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.43ms. Allocated memory is still 67.1MB. Free memory was 48.7MB in the beginning and 47.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 01:42:46,062 INFO L158 Benchmark]: Boogie Preprocessor took 25.94ms. Allocated memory is still 67.1MB. Free memory was 47.2MB in the beginning and 45.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 01:42:46,062 INFO L158 Benchmark]: RCFGBuilder took 362.40ms. Allocated memory is still 67.1MB. Free memory was 45.8MB in the beginning and 34.4MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-03 01:42:46,063 INFO L158 Benchmark]: TraceAbstraction took 2132.47ms. Allocated memory was 67.1MB in the beginning and 94.4MB in the end (delta: 27.3MB). Free memory was 33.8MB in the beginning and 71.4MB in the end (delta: -37.5MB). Peak memory consumption was 25.4MB. Max. memory is 16.1GB. [2022-11-03 01:42:46,063 INFO L158 Benchmark]: Witness Printer took 61.90ms. Allocated memory is still 94.4MB. Free memory was 71.4MB in the beginning and 68.5MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-03 01:42:46,065 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 67.1MB. Free memory is still 47.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 318.72ms. Allocated memory is still 67.1MB. Free memory was 45.2MB in the beginning and 48.9MB in the end (delta: -3.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.43ms. Allocated memory is still 67.1MB. Free memory was 48.7MB in the beginning and 47.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 25.94ms. Allocated memory is still 67.1MB. Free memory was 47.2MB in the beginning and 45.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 362.40ms. Allocated memory is still 67.1MB. Free memory was 45.8MB in the beginning and 34.4MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 2132.47ms. Allocated memory was 67.1MB in the beginning and 94.4MB in the end (delta: 27.3MB). Free memory was 33.8MB in the beginning and 71.4MB in the end (delta: -37.5MB). Peak memory consumption was 25.4MB. Max. memory is 16.1GB. * Witness Printer took 61.90ms. Allocated memory is still 94.4MB. Free memory was 71.4MB in the beginning and 68.5MB in the end (delta: 2.8MB). 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 - CounterExampleResult [Line: 21]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L26] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L27] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L29] const SORT_1 var_10 = 1; [L30] const SORT_1 var_13 = 0; [L32] SORT_1 input_2; [L34] SORT_1 state_3 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L35] SORT_1 state_4 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L36] SORT_1 state_11 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L38] SORT_1 init_12_arg_1 = var_10; [L39] state_11 = init_12_arg_1 VAL [init_12_arg_1=1, mask_SORT_1=1, msb_SORT_1=1, state_11=1, state_3=0, state_4=1, var_10=1, var_13=0] [L42] input_2 = __VERIFIER_nondet_uchar() [L43] input_2 = input_2 & mask_SORT_1 [L45] SORT_1 var_9_arg_0 = state_3; [L46] SORT_1 var_9_arg_1 = state_4; [L47] SORT_1 var_9 = var_9_arg_0 == var_9_arg_1; [L48] SORT_1 var_15_arg_0 = state_11; [L49] SORT_1 var_15_arg_1 = ~var_9; [L50] var_15_arg_1 = var_15_arg_1 & mask_SORT_1 [L51] SORT_1 var_15 = !var_15_arg_0 || var_15_arg_1; [L52] SORT_1 constr_16_arg_0 = var_15; [L53] CALL assume_abort_if_not(constr_16_arg_0) [L22] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L53] RET assume_abort_if_not(constr_16_arg_0) [L55] SORT_1 bad_17_arg_0 = var_9; [L56] CALL __VERIFIER_assert(!(bad_17_arg_0)) [L21] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L56] RET __VERIFIER_assert(!(bad_17_arg_0)) [L58] SORT_1 var_5_arg_0 = ~input_2; [L59] var_5_arg_0 = var_5_arg_0 & mask_SORT_1 [L60] SORT_1 var_5_arg_1 = ~state_3; [L61] var_5_arg_1 = var_5_arg_1 & mask_SORT_1 [L62] SORT_1 var_5_arg_2 = state_3; VAL [bad_17_arg_0=0, constr_16_arg_0=1, init_12_arg_1=1, input_2=1, mask_SORT_1=1, msb_SORT_1=1, state_11=1, state_3=0, state_4=1, var_10=1, var_13=0, var_15=1, var_15_arg_0=1, var_15_arg_1=1, var_5_arg_0=0, var_5_arg_1=1, var_5_arg_2=0, var_9=0, var_9_arg_0=0, var_9_arg_1=1] [L63] EXPR var_5_arg_0 ? var_5_arg_1 : var_5_arg_2 VAL [bad_17_arg_0=0, constr_16_arg_0=1, init_12_arg_1=1, input_2=1, mask_SORT_1=1, msb_SORT_1=1, state_11=1, state_3=0, state_4=1, var_10=1, var_13=0, var_15=1, var_15_arg_0=1, var_15_arg_1=1, var_5_arg_0=0, var_5_arg_0 ? var_5_arg_1 : var_5_arg_2=0, var_5_arg_1=1, var_5_arg_2=0, var_9=0, var_9_arg_0=0, var_9_arg_1=1] [L63] SORT_1 var_5 = var_5_arg_0 ? var_5_arg_1 : var_5_arg_2; [L64] var_5 = var_5 & mask_SORT_1 [L65] SORT_1 next_7_arg_1 = var_5; [L66] SORT_1 var_6_arg_0 = input_2; [L67] SORT_1 var_6_arg_1 = ~state_4; [L68] var_6_arg_1 = var_6_arg_1 & mask_SORT_1 [L69] SORT_1 var_6_arg_2 = state_4; VAL [bad_17_arg_0=0, constr_16_arg_0=1, init_12_arg_1=1, input_2=1, mask_SORT_1=1, msb_SORT_1=1, next_7_arg_1=0, state_11=1, state_3=0, state_4=1, var_10=1, var_13=0, var_15=1, var_15_arg_0=1, var_15_arg_1=1, var_5=0, var_5_arg_0=0, var_5_arg_1=1, var_5_arg_2=0, var_6_arg_0=1, var_6_arg_1=0, var_6_arg_2=1, var_9=0, var_9_arg_0=0, var_9_arg_1=1] [L70] EXPR var_6_arg_0 ? var_6_arg_1 : var_6_arg_2 VAL [bad_17_arg_0=0, constr_16_arg_0=1, init_12_arg_1=1, input_2=1, mask_SORT_1=1, msb_SORT_1=1, next_7_arg_1=0, state_11=1, state_3=0, state_4=1, var_10=1, var_13=0, var_15=1, var_15_arg_0=1, var_15_arg_1=1, var_5=0, var_5_arg_0=0, var_5_arg_1=1, var_5_arg_2=0, var_6_arg_0=1, var_6_arg_0 ? var_6_arg_1 : var_6_arg_2=0, var_6_arg_1=0, var_6_arg_2=1, var_9=0, var_9_arg_0=0, var_9_arg_1=1] [L70] SORT_1 var_6 = var_6_arg_0 ? var_6_arg_1 : var_6_arg_2; [L71] var_6 = var_6 & mask_SORT_1 [L72] SORT_1 next_8_arg_1 = var_6; [L73] SORT_1 next_14_arg_1 = var_13; [L75] state_3 = next_7_arg_1 [L76] state_4 = next_8_arg_1 [L77] state_11 = next_14_arg_1 VAL [bad_17_arg_0=0, constr_16_arg_0=1, init_12_arg_1=1, input_2=1, mask_SORT_1=1, msb_SORT_1=1, next_14_arg_1=0, next_7_arg_1=0, next_8_arg_1=0, state_11=0, state_3=0, state_4=0, var_10=1, var_13=0, var_15=1, var_15_arg_0=1, var_15_arg_1=1, var_5=0, var_5_arg_0=0, var_5_arg_1=1, var_5_arg_2=0, var_6=0, var_6_arg_0=1, var_6_arg_1=0, var_6_arg_2=1, var_9=0, var_9_arg_0=0, var_9_arg_1=1] [L42] input_2 = __VERIFIER_nondet_uchar() [L43] input_2 = input_2 & mask_SORT_1 [L45] SORT_1 var_9_arg_0 = state_3; [L46] SORT_1 var_9_arg_1 = state_4; [L47] SORT_1 var_9 = var_9_arg_0 == var_9_arg_1; [L48] SORT_1 var_15_arg_0 = state_11; [L49] SORT_1 var_15_arg_1 = ~var_9; [L50] var_15_arg_1 = var_15_arg_1 & mask_SORT_1 [L51] SORT_1 var_15 = !var_15_arg_0 || var_15_arg_1; [L52] SORT_1 constr_16_arg_0 = var_15; [L53] CALL assume_abort_if_not(constr_16_arg_0) [L22] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L53] RET assume_abort_if_not(constr_16_arg_0) [L55] SORT_1 bad_17_arg_0 = var_9; [L56] CALL __VERIFIER_assert(!(bad_17_arg_0)) [L21] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L21] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 17 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.0s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 36 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 36 mSDsluCounter, 69 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 43 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 24 IncrementalHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 26 mSDtfsCounter, 24 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, InterpolantAutomatonStates: 10, 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, 2 MinimizatonAttempts, 8 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 59 SizeOfPredicates, 15 NumberOfNonLiveVariables, 54 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 proved your program to be incorrect! [2022-11-03 01:42:46,119 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2863a91a-716e-411e-b4bc-6fd81c907137/bin/utaipan-7li7fVZpFI/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 Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE