./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.adding.5.prop1-func-interl.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70d1c85-35b7-421f-8e9f-96ef6a03f50a/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70d1c85-35b7-421f-8e9f-96ef6a03f50a/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70d1c85-35b7-421f-8e9f-96ef6a03f50a/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70d1c85-35b7-421f-8e9f-96ef6a03f50a/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.adding.5.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70d1c85-35b7-421f-8e9f-96ef6a03f50a/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70d1c85-35b7-421f-8e9f-96ef6a03f50a/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 102550c3b9db85e27664a331ee4a550e9eaa2298850d8626949c203d3d9cc829 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 04:49:55,043 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 04:49:55,045 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 04:49:55,063 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 04:49:55,064 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 04:49:55,065 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 04:49:55,066 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 04:49:55,067 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 04:49:55,069 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 04:49:55,070 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 04:49:55,071 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 04:49:55,072 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 04:49:55,072 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 04:49:55,073 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 04:49:55,074 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 04:49:55,075 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 04:49:55,076 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 04:49:55,077 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 04:49:55,079 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 04:49:55,080 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 04:49:55,082 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 04:49:55,083 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 04:49:55,084 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 04:49:55,085 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 04:49:55,088 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 04:49:55,088 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 04:49:55,089 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 04:49:55,090 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 04:49:55,090 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 04:49:55,091 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 04:49:55,091 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 04:49:55,092 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 04:49:55,093 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 04:49:55,094 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 04:49:55,094 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 04:49:55,095 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 04:49:55,095 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 04:49:55,096 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 04:49:55,096 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 04:49:55,097 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 04:49:55,097 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 04:49:55,098 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70d1c85-35b7-421f-8e9f-96ef6a03f50a/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 04:49:55,118 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 04:49:55,118 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 04:49:55,118 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 04:49:55,119 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 04:49:55,119 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 04:49:55,120 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 04:49:55,120 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 04:49:55,120 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 04:49:55,120 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 04:49:55,120 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 04:49:55,121 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 04:49:55,121 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 04:49:55,121 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 04:49:55,121 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 04:49:55,121 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 04:49:55,121 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 04:49:55,122 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 04:49:55,122 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 04:49:55,122 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 04:49:55,123 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 04:49:55,123 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 04:49:55,123 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 04:49:55,123 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 04:49:55,123 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 04:49:55,123 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 04:49:55,124 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 04:49:55,124 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 04:49:55,124 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 04:49:55,124 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 04:49:55,124 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 04:49:55,125 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 04:49:55,125 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 04:49:55,125 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 04:49:55,125 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 04:49:55,125 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 04:49:55,125 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 04:49:55,126 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 04:49:55,126 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 04:49:55,126 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_e70d1c85-35b7-421f-8e9f-96ef6a03f50a/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70d1c85-35b7-421f-8e9f-96ef6a03f50a/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 102550c3b9db85e27664a331ee4a550e9eaa2298850d8626949c203d3d9cc829 [2022-12-14 04:49:55,338 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 04:49:55,356 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 04:49:55,358 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 04:49:55,360 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 04:49:55,360 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 04:49:55,361 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70d1c85-35b7-421f-8e9f-96ef6a03f50a/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.adding.5.prop1-func-interl.c [2022-12-14 04:49:58,019 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 04:49:58,216 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 04:49:58,217 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70d1c85-35b7-421f-8e9f-96ef6a03f50a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.adding.5.prop1-func-interl.c [2022-12-14 04:49:58,225 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70d1c85-35b7-421f-8e9f-96ef6a03f50a/bin/utaipan-gh47qXpMRh/data/4eeb867b0/4b535f56b49b47b092d35ad0b8ea717d/FLAG1be7d84c2 [2022-12-14 04:49:58,239 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70d1c85-35b7-421f-8e9f-96ef6a03f50a/bin/utaipan-gh47qXpMRh/data/4eeb867b0/4b535f56b49b47b092d35ad0b8ea717d [2022-12-14 04:49:58,242 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 04:49:58,243 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 04:49:58,244 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 04:49:58,244 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 04:49:58,248 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 04:49:58,248 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 04:49:58" (1/1) ... [2022-12-14 04:49:58,249 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66c7f453 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:49:58, skipping insertion in model container [2022-12-14 04:49:58,249 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 04:49:58" (1/1) ... [2022-12-14 04:49:58,257 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 04:49:58,288 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 04:49:58,399 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70d1c85-35b7-421f-8e9f-96ef6a03f50a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.adding.5.prop1-func-interl.c[1014,1027] [2022-12-14 04:49:58,503 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 04:49:58,508 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 04:49:58,518 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70d1c85-35b7-421f-8e9f-96ef6a03f50a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.adding.5.prop1-func-interl.c[1014,1027] [2022-12-14 04:49:58,579 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 04:49:58,589 INFO L208 MainTranslator]: Completed translation [2022-12-14 04:49:58,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:49:58 WrapperNode [2022-12-14 04:49:58,590 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 04:49:58,590 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 04:49:58,590 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 04:49:58,591 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 04:49:58,596 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:49:58" (1/1) ... [2022-12-14 04:49:58,607 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:49:58" (1/1) ... [2022-12-14 04:49:58,637 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 431 [2022-12-14 04:49:58,638 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 04:49:58,638 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 04:49:58,638 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 04:49:58,638 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 04:49:58,645 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:49:58" (1/1) ... [2022-12-14 04:49:58,646 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:49:58" (1/1) ... [2022-12-14 04:49:58,650 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:49:58" (1/1) ... [2022-12-14 04:49:58,650 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:49:58" (1/1) ... [2022-12-14 04:49:58,661 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:49:58" (1/1) ... [2022-12-14 04:49:58,664 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:49:58" (1/1) ... [2022-12-14 04:49:58,667 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:49:58" (1/1) ... [2022-12-14 04:49:58,669 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:49:58" (1/1) ... [2022-12-14 04:49:58,674 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 04:49:58,675 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 04:49:58,675 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 04:49:58,675 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 04:49:58,676 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:49:58" (1/1) ... [2022-12-14 04:49:58,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 04:49:58,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70d1c85-35b7-421f-8e9f-96ef6a03f50a/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 04:49:58,704 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70d1c85-35b7-421f-8e9f-96ef6a03f50a/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 04:49:58,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70d1c85-35b7-421f-8e9f-96ef6a03f50a/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 04:49:58,731 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 04:49:58,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 04:49:58,847 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 04:49:58,849 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 04:50:04,225 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 04:50:04,242 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 04:50:04,242 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 04:50:04,244 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 04:50:04 BoogieIcfgContainer [2022-12-14 04:50:04,244 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 04:50:04,246 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 04:50:04,246 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 04:50:04,248 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 04:50:04,248 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 04:49:58" (1/3) ... [2022-12-14 04:50:04,249 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e892407 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 04:50:04, skipping insertion in model container [2022-12-14 04:50:04,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:49:58" (2/3) ... [2022-12-14 04:50:04,249 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e892407 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 04:50:04, skipping insertion in model container [2022-12-14 04:50:04,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 04:50:04" (3/3) ... [2022-12-14 04:50:04,250 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.adding.5.prop1-func-interl.c [2022-12-14 04:50:04,266 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 04:50:04,266 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 04:50:04,309 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 04:50:04,315 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;@d18ea99, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 04:50:04,315 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 04:50:04,319 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 04:50:04,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 04:50:04,324 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 04:50:04,325 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 04:50:04,325 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 04:50:04,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 04:50:04,329 INFO L85 PathProgramCache]: Analyzing trace with hash 1827279, now seen corresponding path program 1 times [2022-12-14 04:50:04,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 04:50:04,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506584452] [2022-12-14 04:50:04,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 04:50:04,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 04:50:04,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 04:50:04,563 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 04:50:04,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 04:50:04,661 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 04:50:04,663 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 04:50:04,664 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-14 04:50:04,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 04:50:04,671 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-14 04:50:04,675 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 04:50:04,692 WARN L321 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-12-14 04:50:04,699 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 04:50:04 BoogieIcfgContainer [2022-12-14 04:50:04,700 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 04:50:04,700 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 04:50:04,700 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 04:50:04,701 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 04:50:04,701 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 04:50:04" (3/4) ... [2022-12-14 04:50:04,705 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 04:50:04,705 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 04:50:04,706 INFO L158 Benchmark]: Toolchain (without parser) took 6462.99ms. Allocated memory was 167.8MB in the beginning and 371.2MB in the end (delta: 203.4MB). Free memory was 133.6MB in the beginning and 251.9MB in the end (delta: -118.2MB). Peak memory consumption was 87.1MB. Max. memory is 16.1GB. [2022-12-14 04:50:04,707 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 167.8MB. Free memory is still 110.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 04:50:04,707 INFO L158 Benchmark]: CACSL2BoogieTranslator took 345.70ms. Allocated memory is still 167.8MB. Free memory was 133.6MB in the beginning and 112.1MB in the end (delta: 21.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-12-14 04:50:04,708 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.46ms. Allocated memory is still 167.8MB. Free memory was 112.1MB in the beginning and 105.8MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-12-14 04:50:04,708 INFO L158 Benchmark]: Boogie Preprocessor took 36.27ms. Allocated memory is still 167.8MB. Free memory was 105.8MB in the beginning and 102.3MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 04:50:04,709 INFO L158 Benchmark]: RCFGBuilder took 5569.44ms. Allocated memory was 167.8MB in the beginning and 371.2MB in the end (delta: 203.4MB). Free memory was 102.3MB in the beginning and 286.5MB in the end (delta: -184.2MB). Peak memory consumption was 196.2MB. Max. memory is 16.1GB. [2022-12-14 04:50:04,709 INFO L158 Benchmark]: TraceAbstraction took 453.93ms. Allocated memory is still 371.2MB. Free memory was 286.5MB in the beginning and 251.9MB in the end (delta: 34.6MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2022-12-14 04:50:04,710 INFO L158 Benchmark]: Witness Printer took 4.84ms. Allocated memory is still 371.2MB. Free memory is still 251.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 04:50:04,712 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 167.8MB. Free memory is still 110.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 345.70ms. Allocated memory is still 167.8MB. Free memory was 133.6MB in the beginning and 112.1MB in the end (delta: 21.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.46ms. Allocated memory is still 167.8MB. Free memory was 112.1MB in the beginning and 105.8MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.27ms. Allocated memory is still 167.8MB. Free memory was 105.8MB in the beginning and 102.3MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 5569.44ms. Allocated memory was 167.8MB in the beginning and 371.2MB in the end (delta: 203.4MB). Free memory was 102.3MB in the beginning and 286.5MB in the end (delta: -184.2MB). Peak memory consumption was 196.2MB. Max. memory is 16.1GB. * TraceAbstraction took 453.93ms. Allocated memory is still 371.2MB. Free memory was 286.5MB in the beginning and 251.9MB in the end (delta: 34.6MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Witness Printer took 4.84ms. Allocated memory is still 371.2MB. Free memory is still 251.9MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 20]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 104, overapproximation of shiftRight at line 108, overapproximation of bitwiseAnd at line 86, overapproximation of bitwiseComplement at line 106, overapproximation of bitwiseXor at line 101. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L28] const SORT_2 mask_SORT_2 = (SORT_2)-1 >> (sizeof(SORT_2) * 8 - 5); [L29] const SORT_2 msb_SORT_2 = (SORT_2)1 << (5 - 1); [L31] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 16); [L32] const SORT_3 msb_SORT_3 = (SORT_3)1 << (16 - 1); [L34] const SORT_4 mask_SORT_4 = (SORT_4)-1 >> (sizeof(SORT_4) * 8 - 32); [L35] const SORT_4 msb_SORT_4 = (SORT_4)1 << (32 - 1); [L37] const SORT_3 var_5 = 0; [L38] const SORT_1 var_12 = 0; [L39] const SORT_4 var_27 = 849; [L40] const SORT_3 var_28 = 1; [L41] const SORT_3 var_30 = 0; [L42] const SORT_4 var_32 = 16; [L43] const SORT_4 var_79 = 500; [L45] SORT_1 input_37; [L46] SORT_1 input_38; [L47] SORT_1 input_43; [L48] SORT_1 input_48; [L49] SORT_1 input_52; [L50] SORT_1 input_57; [L52] SORT_3 state_6 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L53] SORT_3 state_8 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L54] SORT_3 state_10 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L55] SORT_1 state_13 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L56] SORT_1 state_15 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L57] SORT_1 state_17 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L58] SORT_1 state_19 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L59] SORT_1 state_21 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L60] SORT_1 state_23 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L61] SORT_1 state_25 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L63] SORT_3 init_7_arg_1 = var_5; [L64] state_6 = init_7_arg_1 [L65] SORT_3 init_9_arg_1 = var_5; [L66] state_8 = init_9_arg_1 [L67] SORT_3 init_11_arg_1 = var_5; [L68] state_10 = init_11_arg_1 [L69] SORT_1 init_14_arg_1 = var_12; [L70] state_13 = init_14_arg_1 [L71] SORT_1 init_16_arg_1 = var_12; [L72] state_15 = init_16_arg_1 [L73] SORT_1 init_18_arg_1 = var_12; [L74] state_17 = init_18_arg_1 [L75] SORT_1 init_20_arg_1 = var_12; [L76] state_19 = init_20_arg_1 [L77] SORT_1 init_22_arg_1 = var_12; [L78] state_21 = init_22_arg_1 [L79] SORT_1 init_24_arg_1 = var_12; [L80] state_23 = init_24_arg_1 [L81] SORT_1 init_26_arg_1 = var_12; [L82] state_25 = init_26_arg_1 VAL [init_11_arg_1=0, init_14_arg_1=0, init_16_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_22_arg_1=0, init_24_arg_1=0, init_26_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, mask_SORT_1=1, mask_SORT_2=31, mask_SORT_3=65535, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=16, msb_SORT_3=32768, msb_SORT_4=2147483648, state_10=0, state_13=0, state_15=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_6=0, state_8=0, var_12=0, var_27=849, var_28=1, var_30=0, var_32=16, var_5=0, var_79=500] [L85] input_37 = __VERIFIER_nondet_uchar() [L86] input_37 = input_37 & mask_SORT_1 [L87] input_38 = __VERIFIER_nondet_uchar() [L88] input_38 = input_38 & mask_SORT_1 [L89] input_43 = __VERIFIER_nondet_uchar() [L90] input_43 = input_43 & mask_SORT_1 [L91] input_48 = __VERIFIER_nondet_uchar() [L92] input_48 = input_48 & mask_SORT_1 [L93] input_52 = __VERIFIER_nondet_uchar() [L94] input_52 = input_52 & mask_SORT_1 [L95] input_57 = __VERIFIER_nondet_uchar() [L96] input_57 = input_57 & mask_SORT_1 [L99] SORT_3 var_29_arg_0 = var_28; [L100] SORT_3 var_29_arg_1 = state_6; [L101] SORT_3 var_29 = var_29_arg_0 ^ var_29_arg_1; [L102] SORT_3 var_31_arg_0 = var_29; [L103] SORT_3 var_31_arg_1 = var_30; [L104] SORT_4 var_31 = ((SORT_4)var_31_arg_0 << 16) | var_31_arg_1; [L105] SORT_4 var_33_arg_0 = var_31; [L106] var_33_arg_0 = (var_33_arg_0 & msb_SORT_4) ? (var_33_arg_0 | ~mask_SORT_4) : (var_33_arg_0 & mask_SORT_4) [L107] SORT_4 var_33_arg_1 = var_32; [L108] SORT_4 var_33 = (int)var_33_arg_0 >> var_33_arg_1; [L109] var_33 = (var_33_arg_0 & msb_SORT_4) ? (var_33 | ~(mask_SORT_4 >> var_33_arg_1)) : var_33 [L110] var_33 = var_33 & mask_SORT_4 [L111] SORT_4 var_34_arg_0 = var_27; [L112] SORT_4 var_34_arg_1 = var_33; [L113] SORT_1 var_34 = var_34_arg_0 == var_34_arg_1; [L114] SORT_1 var_35_arg_0 = ~state_25; [L115] var_35_arg_0 = var_35_arg_0 & mask_SORT_1 [L116] SORT_1 var_35_arg_1 = var_34; [L117] SORT_1 var_35 = var_35_arg_0 & var_35_arg_1; [L118] var_35 = var_35 & mask_SORT_1 [L119] SORT_1 bad_36_arg_0 = var_35; [L120] CALL __VERIFIER_assert(!(bad_36_arg_0)) [L20] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L20] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-14 04:50:04,733 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70d1c85-35b7-421f-8e9f-96ef6a03f50a/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70d1c85-35b7-421f-8e9f-96ef6a03f50a/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70d1c85-35b7-421f-8e9f-96ef6a03f50a/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70d1c85-35b7-421f-8e9f-96ef6a03f50a/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70d1c85-35b7-421f-8e9f-96ef6a03f50a/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.adding.5.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70d1c85-35b7-421f-8e9f-96ef6a03f50a/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70d1c85-35b7-421f-8e9f-96ef6a03f50a/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 102550c3b9db85e27664a331ee4a550e9eaa2298850d8626949c203d3d9cc829 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 04:50:06,417 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 04:50:06,419 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 04:50:06,433 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 04:50:06,433 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 04:50:06,434 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 04:50:06,435 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 04:50:06,436 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 04:50:06,437 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 04:50:06,438 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 04:50:06,439 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 04:50:06,440 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 04:50:06,440 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 04:50:06,441 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 04:50:06,441 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 04:50:06,442 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 04:50:06,443 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 04:50:06,444 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 04:50:06,445 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 04:50:06,446 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 04:50:06,447 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 04:50:06,448 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 04:50:06,449 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 04:50:06,450 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 04:50:06,452 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 04:50:06,453 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 04:50:06,453 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 04:50:06,453 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 04:50:06,454 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 04:50:06,454 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 04:50:06,455 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 04:50:06,455 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 04:50:06,456 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 04:50:06,456 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 04:50:06,457 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 04:50:06,457 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 04:50:06,458 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 04:50:06,458 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 04:50:06,458 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 04:50:06,459 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 04:50:06,459 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 04:50:06,460 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70d1c85-35b7-421f-8e9f-96ef6a03f50a/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-12-14 04:50:06,476 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 04:50:06,476 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 04:50:06,476 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 04:50:06,476 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 04:50:06,477 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 04:50:06,477 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 04:50:06,477 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 04:50:06,477 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 04:50:06,477 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 04:50:06,477 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 04:50:06,477 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 04:50:06,477 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 04:50:06,478 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 04:50:06,478 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 04:50:06,478 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 04:50:06,478 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 04:50:06,478 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 04:50:06,479 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 04:50:06,479 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 04:50:06,479 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 04:50:06,479 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 04:50:06,479 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 04:50:06,479 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 04:50:06,479 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 04:50:06,479 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 04:50:06,479 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 04:50:06,480 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 04:50:06,480 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 04:50:06,480 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 04:50:06,480 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 04:50:06,480 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 04:50:06,485 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 04:50:06,485 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 04:50:06,485 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 04:50:06,485 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 04:50:06,485 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_e70d1c85-35b7-421f-8e9f-96ef6a03f50a/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70d1c85-35b7-421f-8e9f-96ef6a03f50a/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 102550c3b9db85e27664a331ee4a550e9eaa2298850d8626949c203d3d9cc829 [2022-12-14 04:50:06,711 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 04:50:06,729 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 04:50:06,731 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 04:50:06,732 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 04:50:06,732 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 04:50:06,733 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70d1c85-35b7-421f-8e9f-96ef6a03f50a/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.adding.5.prop1-func-interl.c [2022-12-14 04:50:09,372 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 04:50:09,549 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 04:50:09,549 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70d1c85-35b7-421f-8e9f-96ef6a03f50a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.adding.5.prop1-func-interl.c [2022-12-14 04:50:09,559 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70d1c85-35b7-421f-8e9f-96ef6a03f50a/bin/utaipan-gh47qXpMRh/data/6bd515f58/b26ad7816e81411c92482ea1d4bd7398/FLAGcc587bac1 [2022-12-14 04:50:09,572 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70d1c85-35b7-421f-8e9f-96ef6a03f50a/bin/utaipan-gh47qXpMRh/data/6bd515f58/b26ad7816e81411c92482ea1d4bd7398 [2022-12-14 04:50:09,574 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 04:50:09,575 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 04:50:09,576 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 04:50:09,576 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 04:50:09,578 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 04:50:09,579 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 04:50:09" (1/1) ... [2022-12-14 04:50:09,580 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b726189 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:50:09, skipping insertion in model container [2022-12-14 04:50:09,580 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 04:50:09" (1/1) ... [2022-12-14 04:50:09,586 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 04:50:09,617 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 04:50:09,729 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70d1c85-35b7-421f-8e9f-96ef6a03f50a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.adding.5.prop1-func-interl.c[1014,1027] [2022-12-14 04:50:09,833 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 04:50:09,838 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 04:50:09,847 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70d1c85-35b7-421f-8e9f-96ef6a03f50a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.adding.5.prop1-func-interl.c[1014,1027] [2022-12-14 04:50:09,914 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 04:50:09,924 INFO L208 MainTranslator]: Completed translation [2022-12-14 04:50:09,924 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:50:09 WrapperNode [2022-12-14 04:50:09,925 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 04:50:09,925 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 04:50:09,925 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 04:50:09,926 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 04:50:09,931 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:50:09" (1/1) ... [2022-12-14 04:50:09,940 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:50:09" (1/1) ... [2022-12-14 04:50:09,975 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 431 [2022-12-14 04:50:09,975 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 04:50:09,976 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 04:50:09,976 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 04:50:09,976 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 04:50:09,988 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:50:09" (1/1) ... [2022-12-14 04:50:09,988 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:50:09" (1/1) ... [2022-12-14 04:50:09,993 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:50:09" (1/1) ... [2022-12-14 04:50:09,993 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:50:09" (1/1) ... [2022-12-14 04:50:10,000 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:50:09" (1/1) ... [2022-12-14 04:50:10,003 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:50:09" (1/1) ... [2022-12-14 04:50:10,005 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:50:09" (1/1) ... [2022-12-14 04:50:10,006 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:50:09" (1/1) ... [2022-12-14 04:50:10,009 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 04:50:10,010 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 04:50:10,010 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 04:50:10,010 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 04:50:10,010 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:50:09" (1/1) ... [2022-12-14 04:50:10,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 04:50:10,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70d1c85-35b7-421f-8e9f-96ef6a03f50a/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 04:50:10,036 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70d1c85-35b7-421f-8e9f-96ef6a03f50a/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 04:50:10,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70d1c85-35b7-421f-8e9f-96ef6a03f50a/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 04:50:10,071 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 04:50:10,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 04:50:10,184 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 04:50:10,186 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 04:50:10,559 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 04:50:10,564 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 04:50:10,564 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 04:50:10,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 04:50:10 BoogieIcfgContainer [2022-12-14 04:50:10,565 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 04:50:10,567 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 04:50:10,567 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 04:50:10,569 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 04:50:10,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 04:50:09" (1/3) ... [2022-12-14 04:50:10,570 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fe903fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 04:50:10, skipping insertion in model container [2022-12-14 04:50:10,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:50:09" (2/3) ... [2022-12-14 04:50:10,570 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fe903fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 04:50:10, skipping insertion in model container [2022-12-14 04:50:10,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 04:50:10" (3/3) ... [2022-12-14 04:50:10,571 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.adding.5.prop1-func-interl.c [2022-12-14 04:50:10,584 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 04:50:10,584 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 04:50:10,616 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 04:50:10,621 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;@3ff66f73, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 04:50:10,621 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 04:50:10,624 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 04:50:10,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 04:50:10,628 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 04:50:10,628 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 04:50:10,629 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 04:50:10,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 04:50:10,633 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-12-14 04:50:10,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 04:50:10,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1057524395] [2022-12-14 04:50:10,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 04:50:10,642 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 04:50:10,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70d1c85-35b7-421f-8e9f-96ef6a03f50a/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 04:50:10,643 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70d1c85-35b7-421f-8e9f-96ef6a03f50a/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 04:50:10,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70d1c85-35b7-421f-8e9f-96ef6a03f50a/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-12-14 04:50:10,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 04:50:10,762 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 25 conjunts are in the unsatisfiable core [2022-12-14 04:50:10,769 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 04:50:11,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 04:50:11,060 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 04:50:11,060 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 04:50:11,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1057524395] [2022-12-14 04:50:11,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1057524395] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 04:50:11,061 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 04:50:11,061 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 04:50:11,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511418375] [2022-12-14 04:50:11,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 04:50:11,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 04:50:11,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 04:50:11,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 04:50:11,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 04:50:11,097 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 04:50:11,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 04:50:11,181 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-12-14 04:50:11,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 04:50:11,183 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-12-14 04:50:11,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 04:50:11,190 INFO L225 Difference]: With dead ends: 20 [2022-12-14 04:50:11,191 INFO L226 Difference]: Without dead ends: 11 [2022-12-14 04:50:11,193 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 04:50:11,196 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 04:50:11,197 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 04:50:11,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-12-14 04:50:11,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-12-14 04:50:11,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 04:50:11,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-12-14 04:50:11,225 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-12-14 04:50:11,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 04:50:11,225 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-12-14 04:50:11,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 04:50:11,226 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-12-14 04:50:11,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 04:50:11,226 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 04:50:11,226 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-12-14 04:50:11,239 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70d1c85-35b7-421f-8e9f-96ef6a03f50a/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-12-14 04:50:11,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70d1c85-35b7-421f-8e9f-96ef6a03f50a/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 04:50:11,427 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 04:50:11,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 04:50:11,428 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-12-14 04:50:11,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 04:50:11,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1293292816] [2022-12-14 04:50:11,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 04:50:11,429 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 04:50:11,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70d1c85-35b7-421f-8e9f-96ef6a03f50a/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 04:50:11,430 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70d1c85-35b7-421f-8e9f-96ef6a03f50a/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 04:50:11,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70d1c85-35b7-421f-8e9f-96ef6a03f50a/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-12-14 04:50:11,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 04:50:11,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 75 conjunts are in the unsatisfiable core [2022-12-14 04:50:11,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 04:51:11,948 WARN L233 SmtUtils]: Spent 59.66s on a formula simplification. DAG size of input: 148 DAG size of output: 145 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 04:51:12,216 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 04:51:12,216 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 04:51:47,456 WARN L233 SmtUtils]: Spent 29.58s on a formula simplification. DAG size of input: 215 DAG size of output: 209 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 04:53:02,044 WARN L233 SmtUtils]: Spent 1.17m on a formula simplification that was a NOOP. DAG size: 221 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 04:53:02,121 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 04:53:02,121 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 04:53:02,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1293292816] [2022-12-14 04:53:02,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1293292816] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 04:53:02,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1074100276] [2022-12-14 04:53:02,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 04:53:02,122 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 04:53:02,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70d1c85-35b7-421f-8e9f-96ef6a03f50a/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 04:53:02,123 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70d1c85-35b7-421f-8e9f-96ef6a03f50a/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 04:53:02,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70d1c85-35b7-421f-8e9f-96ef6a03f50a/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2022-12-14 04:53:02,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 04:53:02,386 INFO L263 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 77 conjunts are in the unsatisfiable core [2022-12-14 04:53:02,390 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 04:53:41,206 WARN L233 SmtUtils]: Spent 37.04s on a formula simplification that was a NOOP. DAG size: 151 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 04:53:41,603 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 04:53:41,604 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 04:53:56,059 WARN L233 SmtUtils]: Spent 8.53s on a formula simplification. DAG size of input: 215 DAG size of output: 209 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 04:55:26,279 WARN L233 SmtUtils]: Spent 1.38m on a formula simplification that was a NOOP. DAG size: 219 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 04:55:26,319 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 04:55:26,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1074100276] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 04:55:26,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [690119945] [2022-12-14 04:55:26,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 04:55:26,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 04:55:26,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70d1c85-35b7-421f-8e9f-96ef6a03f50a/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 04:55:26,321 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70d1c85-35b7-421f-8e9f-96ef6a03f50a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 04:55:26,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70d1c85-35b7-421f-8e9f-96ef6a03f50a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 04:55:26,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 04:55:26,482 INFO L263 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 78 conjunts are in the unsatisfiable core [2022-12-14 04:55:26,485 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 04:55:28,415 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 04:55:28,415 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 04:56:18,838 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70d1c85-35b7-421f-8e9f-96ef6a03f50a/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 101 [2022-12-14 04:56:18,838 WARN L230 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70d1c85-35b7-421f-8e9f-96ef6a03f50a/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2022-12-14 04:56:18,839 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70d1c85-35b7-421f-8e9f-96ef6a03f50a/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") [2022-12-14 04:56:18,839 INFO L184 FreeRefinementEngine]: Found 0 perfect and 4 imperfect interpolant sequences. [2022-12-14 04:56:18,839 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6] total 16 [2022-12-14 04:56:18,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370837313] [2022-12-14 04:56:18,840 INFO L85 oduleStraightlineAll]: Using 4 imperfect interpolants to construct interpolant automaton [2022-12-14 04:56:18,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-14 04:56:18,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 04:56:18,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-14 04:56:18,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=210, Unknown=4, NotChecked=0, Total=272 [2022-12-14 04:56:18,842 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 16 states, 16 states have (on average 1.5) internal successors, (24), 16 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 04:56:18,843 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 21 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 309.8s TimeCoverageRelationStatistics Valid=58, Invalid=210, Unknown=4, NotChecked=0, Total=272 [2022-12-14 04:56:18,844 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 1 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 [2022-12-14 04:56:18,845 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 12 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 04:56:18,854 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70d1c85-35b7-421f-8e9f-96ef6a03f50a/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-12-14 04:56:19,058 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70d1c85-35b7-421f-8e9f-96ef6a03f50a/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2022-12-14 04:56:19,252 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70d1c85-35b7-421f-8e9f-96ef6a03f50a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 04:56:19,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70d1c85-35b7-421f-8e9f-96ef6a03f50a/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70d1c85-35b7-421f-8e9f-96ef6a03f50a/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70d1c85-35b7-421f-8e9f-96ef6a03f50a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 04:56:19,449 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70d1c85-35b7-421f-8e9f-96ef6a03f50a/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.convertIOException(Executor.java:314) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:158) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.pop(Scriptor.java:139) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.pop(DiffWrapperScript.java:99) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.pop(WrapperScript.java:153) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.pop(HistoryRecordingScript.java:117) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.pop(ManagedScript.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.unAssertCodeBlock(IncrementalHoareTripleChecker.java:436) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.clearAssertionStack(IncrementalHoareTripleChecker.java:278) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.releaseLock(IncrementalHoareTripleChecker.java:284) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ChainingHoareTripleChecker$ProtectedHtc.releaseLock(ChainingHoareTripleChecker.java:449) at java.base/java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1655) at java.base/java.util.stream.ReferencePipeline$Head.forEach(ReferencePipeline.java:658) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ChainingHoareTripleChecker.releaseLock(ChainingHoareTripleChecker.java:98) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.CachingHoareTripleChecker.releaseLock(CachingHoareTripleChecker.java:149) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.switchToReadonlyMode(AbstractInterpolantAutomaton.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.NwaCegarLoop.computeAutomataDifference(NwaCegarLoop.java:365) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.NwaCegarLoop.refineAbstraction(NwaCegarLoop.java:325) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.refineAbstractionInternal(AbstractCegarLoop.java:487) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:438) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: java.io.IOException: Stream closed at java.base/java.lang.ProcessBuilder$NullOutputStream.write(ProcessBuilder.java:442) at java.base/java.io.OutputStream.write(OutputStream.java:157) at java.base/java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:81) at java.base/java.io.BufferedOutputStream.flush(BufferedOutputStream.java:142) at java.base/sun.nio.cs.StreamEncoder.implFlush(StreamEncoder.java:318) at java.base/sun.nio.cs.StreamEncoder.flush(StreamEncoder.java:153) at java.base/java.io.OutputStreamWriter.flush(OutputStreamWriter.java:251) at java.base/java.io.BufferedWriter.flush(BufferedWriter.java:257) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:156) ... 36 more [2022-12-14 04:56:19,453 INFO L158 Benchmark]: Toolchain (without parser) took 369877.73ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 69.8MB in the beginning and 67.4MB in the end (delta: 2.4MB). Peak memory consumption was 23.4MB. Max. memory is 16.1GB. [2022-12-14 04:56:19,453 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 54.5MB. Free memory is still 33.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 04:56:19,453 INFO L158 Benchmark]: CACSL2BoogieTranslator took 349.22ms. Allocated memory is still 92.3MB. Free memory was 69.8MB in the beginning and 49.4MB in the end (delta: 20.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-14 04:56:19,454 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.73ms. Allocated memory is still 92.3MB. Free memory was 49.1MB in the beginning and 70.3MB in the end (delta: -21.2MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. [2022-12-14 04:56:19,454 INFO L158 Benchmark]: Boogie Preprocessor took 33.53ms. Allocated memory is still 92.3MB. Free memory was 70.3MB in the beginning and 67.1MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 04:56:19,455 INFO L158 Benchmark]: RCFGBuilder took 555.74ms. Allocated memory is still 92.3MB. Free memory was 67.1MB in the beginning and 46.1MB in the end (delta: 21.0MB). Peak memory consumption was 36.6MB. Max. memory is 16.1GB. [2022-12-14 04:56:19,455 INFO L158 Benchmark]: TraceAbstraction took 368885.29ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 45.6MB in the beginning and 67.4MB in the end (delta: -21.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 04:56:19,457 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 54.5MB. Free memory is still 33.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 349.22ms. Allocated memory is still 92.3MB. Free memory was 69.8MB in the beginning and 49.4MB in the end (delta: 20.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.73ms. Allocated memory is still 92.3MB. Free memory was 49.1MB in the beginning and 70.3MB in the end (delta: -21.2MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.53ms. Allocated memory is still 92.3MB. Free memory was 70.3MB in the beginning and 67.1MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 555.74ms. Allocated memory is still 92.3MB. Free memory was 67.1MB in the beginning and 46.1MB in the end (delta: 21.0MB). Peak memory consumption was 36.6MB. Max. memory is 16.1GB. * TraceAbstraction took 368885.29ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 45.6MB in the beginning and 67.4MB in the end (delta: -21.8MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70d1c85-35b7-421f-8e9f-96ef6a03f50a/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70d1c85-35b7-421f-8e9f-96ef6a03f50a/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken: de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.convertIOException(Executor.java:314) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70d1c85-35b7-421f-8e9f-96ef6a03f50a/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken