./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.hanoi.3.prop1-func-interl.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b 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_53db5d8e-5f10-41d2-aaf9-3ca424675657/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53db5d8e-5f10-41d2-aaf9-3ca424675657/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53db5d8e-5f10-41d2-aaf9-3ca424675657/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53db5d8e-5f10-41d2-aaf9-3ca424675657/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.hanoi.3.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53db5d8e-5f10-41d2-aaf9-3ca424675657/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53db5d8e-5f10-41d2-aaf9-3ca424675657/bin/utaipan-I9t0OCRTmS --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 4dc0b31711bfc38df187f78180a845f60ef5b637a02cb40e580c2ade20e6b540 --- 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-8393723 [2022-11-19 08:30:36,558 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:30:36,561 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:30:36,597 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:30:36,598 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:30:36,599 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:30:36,601 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:30:36,607 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:30:36,610 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:30:36,612 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:30:36,614 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:30:36,616 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:30:36,618 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:30:36,623 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:30:36,625 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:30:36,627 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:30:36,630 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:30:36,636 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:30:36,638 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:30:36,645 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:30:36,647 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:30:36,651 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:30:36,653 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:30:36,655 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:30:36,660 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:30:36,664 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:30:36,665 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:30:36,666 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:30:36,668 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:30:36,669 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:30:36,669 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:30:36,670 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:30:36,673 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:30:36,674 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:30:36,677 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:30:36,677 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:30:36,678 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:30:36,678 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:30:36,678 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:30:36,680 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:30:36,680 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:30:36,681 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53db5d8e-5f10-41d2-aaf9-3ca424675657/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-19 08:30:36,734 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:30:36,735 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:30:36,736 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:30:36,736 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:30:36,737 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:30:36,737 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:30:36,737 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:30:36,738 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:30:36,738 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:30:36,738 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 08:30:36,740 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:30:36,740 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:30:36,740 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 08:30:36,740 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 08:30:36,741 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:30:36,741 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 08:30:36,741 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 08:30:36,742 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 08:30:36,742 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:30:36,743 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 08:30:36,743 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:30:36,743 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 08:30:36,743 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:30:36,745 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 08:30:36,746 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 08:30:36,746 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:30:36,746 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 08:30:36,746 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:30:36,747 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:30:36,747 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:30:36,747 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:30:36,748 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 08:30:36,748 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:30:36,748 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 08:30:36,749 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 08:30:36,749 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 08:30:36,749 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 08:30:36,749 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:30:36,750 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_53db5d8e-5f10-41d2-aaf9-3ca424675657/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53db5d8e-5f10-41d2-aaf9-3ca424675657/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4dc0b31711bfc38df187f78180a845f60ef5b637a02cb40e580c2ade20e6b540 [2022-11-19 08:30:37,130 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:30:37,174 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:30:37,177 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:30:37,178 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:30:37,179 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:30:37,181 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53db5d8e-5f10-41d2-aaf9-3ca424675657/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.hanoi.3.prop1-func-interl.c [2022-11-19 08:30:37,271 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53db5d8e-5f10-41d2-aaf9-3ca424675657/bin/utaipan-I9t0OCRTmS/data/3d7b5d82f/d9d4d05814634f39ab23233ed6553500/FLAG6cf269fb2 [2022-11-19 08:30:38,078 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:30:38,079 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53db5d8e-5f10-41d2-aaf9-3ca424675657/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.hanoi.3.prop1-func-interl.c [2022-11-19 08:30:38,102 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53db5d8e-5f10-41d2-aaf9-3ca424675657/bin/utaipan-I9t0OCRTmS/data/3d7b5d82f/d9d4d05814634f39ab23233ed6553500/FLAG6cf269fb2 [2022-11-19 08:30:38,192 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53db5d8e-5f10-41d2-aaf9-3ca424675657/bin/utaipan-I9t0OCRTmS/data/3d7b5d82f/d9d4d05814634f39ab23233ed6553500 [2022-11-19 08:30:38,195 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:30:38,197 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:30:38,201 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:30:38,202 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:30:38,206 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:30:38,208 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:30:38" (1/1) ... [2022-11-19 08:30:38,210 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@370d340 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:30:38, skipping insertion in model container [2022-11-19 08:30:38,210 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:30:38" (1/1) ... [2022-11-19 08:30:38,218 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:30:38,344 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:30:38,629 WARN L234 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_53db5d8e-5f10-41d2-aaf9-3ca424675657/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.hanoi.3.prop1-func-interl.c[1014,1027] [2022-11-19 08:30:39,222 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:30:39,226 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:30:39,240 WARN L234 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_53db5d8e-5f10-41d2-aaf9-3ca424675657/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.hanoi.3.prop1-func-interl.c[1014,1027] [2022-11-19 08:30:39,556 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:30:39,571 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:30:39,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:30:39 WrapperNode [2022-11-19 08:30:39,572 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:30:39,573 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:30:39,573 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:30:39,574 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:30:39,583 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:30:39" (1/1) ... [2022-11-19 08:30:39,669 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:30:39" (1/1) ... [2022-11-19 08:30:39,892 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 4513 [2022-11-19 08:30:39,893 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:30:39,894 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:30:39,894 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:30:39,895 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:30:39,907 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:30:39" (1/1) ... [2022-11-19 08:30:39,907 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:30:39" (1/1) ... [2022-11-19 08:30:39,935 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:30:39" (1/1) ... [2022-11-19 08:30:39,935 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:30:39" (1/1) ... [2022-11-19 08:30:40,128 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:30:39" (1/1) ... [2022-11-19 08:30:40,176 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:30:39" (1/1) ... [2022-11-19 08:30:40,210 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:30:39" (1/1) ... [2022-11-19 08:30:40,231 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:30:39" (1/1) ... [2022-11-19 08:30:40,308 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:30:40,310 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:30:40,311 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:30:40,311 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:30:40,312 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:30:39" (1/1) ... [2022-11-19 08:30:40,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:30:40,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53db5d8e-5f10-41d2-aaf9-3ca424675657/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:30:40,352 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53db5d8e-5f10-41d2-aaf9-3ca424675657/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:30:40,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53db5d8e-5f10-41d2-aaf9-3ca424675657/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:30:40,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:30:40,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:30:41,143 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:30:41,146 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:30:44,755 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:31:06,666 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:31:06,666 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-19 08:31:06,669 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:31:06 BoogieIcfgContainer [2022-11-19 08:31:06,669 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:31:06,672 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:31:06,672 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:31:06,677 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:31:06,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:30:38" (1/3) ... [2022-11-19 08:31:06,678 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b63c710 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:31:06, skipping insertion in model container [2022-11-19 08:31:06,679 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:30:39" (2/3) ... [2022-11-19 08:31:06,679 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b63c710 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:31:06, skipping insertion in model container [2022-11-19 08:31:06,679 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:31:06" (3/3) ... [2022-11-19 08:31:06,683 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.hanoi.3.prop1-func-interl.c [2022-11-19 08:31:06,702 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:31:06,702 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 08:31:06,757 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 08:31:06,767 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;@6e24054d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 08:31:06,768 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 08:31:06,773 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:31:06,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-19 08:31:06,783 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:31:06,784 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-19 08:31:06,785 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:31:06,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:31:06,795 INFO L85 PathProgramCache]: Analyzing trace with hash 91089376, now seen corresponding path program 1 times [2022-11-19 08:31:06,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:31:06,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660676565] [2022-11-19 08:31:06,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:31:06,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:31:07,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 08:31:07,197 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-19 08:31:07,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 08:31:07,487 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-19 08:31:07,490 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-19 08:31:07,492 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-19 08:31:07,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 08:31:07,499 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-19 08:31:07,504 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 08:31:07,547 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-19 08:31:07,566 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 08:31:07 BoogieIcfgContainer [2022-11-19 08:31:07,571 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 08:31:07,572 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 08:31:07,572 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 08:31:07,573 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 08:31:07,574 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:31:06" (3/4) ... [2022-11-19 08:31:07,578 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-19 08:31:07,578 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 08:31:07,580 INFO L158 Benchmark]: Toolchain (without parser) took 29382.51ms. Allocated memory was 132.1MB in the beginning and 7.9GB in the end (delta: 7.8GB). Free memory was 87.6MB in the beginning and 7.4GB in the end (delta: -7.4GB). Peak memory consumption was 433.6MB. Max. memory is 16.1GB. [2022-11-19 08:31:07,581 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 132.1MB. Free memory was 109.1MB in the beginning and 108.9MB in the end (delta: 127.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 08:31:07,582 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1370.64ms. Allocated memory was 132.1MB in the beginning and 197.1MB in the end (delta: 65.0MB). Free memory was 87.3MB in the beginning and 138.6MB in the end (delta: -51.2MB). Peak memory consumption was 57.4MB. Max. memory is 16.1GB. [2022-11-19 08:31:07,582 INFO L158 Benchmark]: Boogie Procedure Inliner took 319.90ms. Allocated memory is still 197.1MB. Free memory was 138.6MB in the beginning and 103.0MB in the end (delta: 35.5MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2022-11-19 08:31:07,583 INFO L158 Benchmark]: Boogie Preprocessor took 415.46ms. Allocated memory is still 197.1MB. Free memory was 103.0MB in the beginning and 129.8MB in the end (delta: -26.7MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. [2022-11-19 08:31:07,584 INFO L158 Benchmark]: RCFGBuilder took 26358.69ms. Allocated memory was 197.1MB in the beginning and 7.9GB in the end (delta: 7.7GB). Free memory was 129.8MB in the beginning and 7.5GB in the end (delta: -7.4GB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. [2022-11-19 08:31:07,585 INFO L158 Benchmark]: TraceAbstraction took 899.44ms. Allocated memory is still 7.9GB. Free memory was 7.5GB in the beginning and 7.4GB in the end (delta: 60.8MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. [2022-11-19 08:31:07,585 INFO L158 Benchmark]: Witness Printer took 6.17ms. Allocated memory is still 7.9GB. Free memory was 7.4GB in the beginning and 7.4GB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 08:31:07,589 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 132.1MB. Free memory was 109.1MB in the beginning and 108.9MB in the end (delta: 127.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1370.64ms. Allocated memory was 132.1MB in the beginning and 197.1MB in the end (delta: 65.0MB). Free memory was 87.3MB in the beginning and 138.6MB in the end (delta: -51.2MB). Peak memory consumption was 57.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 319.90ms. Allocated memory is still 197.1MB. Free memory was 138.6MB in the beginning and 103.0MB in the end (delta: 35.5MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 415.46ms. Allocated memory is still 197.1MB. Free memory was 103.0MB in the beginning and 129.8MB in the end (delta: -26.7MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. * RCFGBuilder took 26358.69ms. Allocated memory was 197.1MB in the beginning and 7.9GB in the end (delta: 7.7GB). Free memory was 129.8MB in the beginning and 7.5GB in the end (delta: -7.4GB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. * TraceAbstraction took 899.44ms. Allocated memory is still 7.9GB. Free memory was 7.5GB in the beginning and 7.4GB in the end (delta: 60.8MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. * Witness Printer took 6.17ms. Allocated memory is still 7.9GB. Free memory was 7.4GB in the beginning and 7.4GB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 20]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseComplement at line 281, overapproximation of bitwiseAnd at line 260, overapproximation of bitwiseXor at line 275. 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 - 8); [L29] const SORT_2 msb_SORT_2 = (SORT_2)1 << (8 - 1); [L31] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 24); [L32] const SORT_3 msb_SORT_3 = (SORT_3)1 << (24 - 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_2 var_5 = 0; [L38] const SORT_1 var_108 = 0; [L39] const SORT_2 var_123 = 15; [L40] const SORT_2 var_124 = 1; [L41] const SORT_2 var_129 = 100; [L42] const SORT_2 var_130 = 0; [L43] const SORT_2 var_131 = 16; [L44] const SORT_4 var_136 = 0; [L45] const SORT_3 var_137 = 0; [L46] const SORT_4 var_139 = 1; [L47] const SORT_4 var_144 = 2; [L48] const SORT_4 var_146 = 3; [L49] const SORT_4 var_148 = 4; [L50] const SORT_4 var_150 = 5; [L51] const SORT_4 var_152 = 6; [L52] const SORT_4 var_154 = 7; [L53] const SORT_4 var_156 = 8; [L54] const SORT_4 var_158 = 9; [L55] const SORT_4 var_160 = 10; [L56] const SORT_4 var_162 = 11; [L57] const SORT_4 var_164 = 12; [L58] const SORT_4 var_166 = 13; [L59] const SORT_4 var_168 = 14; [L60] const SORT_2 var_248 = 14; [L61] const SORT_2 var_249 = 2; [L62] const SORT_2 var_263 = 13; [L63] const SORT_2 var_264 = 3; [L64] const SORT_2 var_278 = 12; [L65] const SORT_2 var_279 = 4; [L66] const SORT_2 var_293 = 11; [L67] const SORT_2 var_294 = 5; [L68] const SORT_2 var_308 = 10; [L69] const SORT_2 var_309 = 6; [L70] const SORT_2 var_323 = 9; [L71] const SORT_2 var_324 = 7; [L72] const SORT_2 var_338 = 8; [L73] const SORT_4 var_433 = 15; [L75] SORT_1 input_134; [L76] SORT_1 input_185; [L77] SORT_1 input_224; [L78] SORT_1 input_226; [L79] SORT_1 input_454; [L80] SORT_1 input_456; [L82] SORT_2 state_6 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L83] SORT_2 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L84] SORT_2 state_10 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L85] SORT_2 state_12 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L86] SORT_2 state_14 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L87] SORT_2 state_16 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L88] SORT_2 state_18 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L89] SORT_2 state_20 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L90] SORT_2 state_22 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L91] SORT_2 state_24 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L92] SORT_2 state_26 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L93] SORT_2 state_28 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L94] SORT_2 state_30 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L95] SORT_2 state_32 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L96] SORT_2 state_34 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L97] SORT_2 state_36 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L98] SORT_2 state_38 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L99] SORT_2 state_40 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L100] SORT_2 state_42 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L101] SORT_2 state_44 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L102] SORT_2 state_46 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L103] SORT_2 state_48 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L104] SORT_2 state_50 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L105] SORT_2 state_52 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L106] SORT_2 state_54 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L107] SORT_2 state_56 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L108] SORT_2 state_58 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L109] SORT_2 state_60 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L110] SORT_2 state_62 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L111] SORT_2 state_64 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L112] SORT_2 state_66 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L113] SORT_2 state_68 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L114] SORT_2 state_70 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L115] SORT_2 state_72 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L116] SORT_2 state_74 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L117] SORT_2 state_76 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L118] SORT_2 state_78 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L119] SORT_2 state_80 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L120] SORT_2 state_82 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L121] SORT_2 state_84 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L122] SORT_2 state_86 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L123] SORT_2 state_88 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L124] SORT_2 state_90 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L125] SORT_2 state_92 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L126] SORT_2 state_94 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L127] SORT_2 state_96 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L128] SORT_2 state_98 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L129] SORT_2 state_100 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L130] SORT_2 state_102 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L131] SORT_2 state_104 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L132] SORT_2 state_106 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L133] SORT_1 state_109 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L134] SORT_1 state_111 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L135] SORT_1 state_113 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L136] SORT_1 state_115 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L137] SORT_1 state_117 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L138] SORT_1 state_119 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L139] SORT_1 state_121 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L141] SORT_2 init_7_arg_1 = var_5; [L142] state_6 = init_7_arg_1 [L143] SORT_2 init_9_arg_1 = var_5; [L144] state_8 = init_9_arg_1 [L145] SORT_2 init_11_arg_1 = var_5; [L146] state_10 = init_11_arg_1 [L147] SORT_2 init_13_arg_1 = var_5; [L148] state_12 = init_13_arg_1 [L149] SORT_2 init_15_arg_1 = var_5; [L150] state_14 = init_15_arg_1 [L151] SORT_2 init_17_arg_1 = var_5; [L152] state_16 = init_17_arg_1 [L153] SORT_2 init_19_arg_1 = var_5; [L154] state_18 = init_19_arg_1 [L155] SORT_2 init_21_arg_1 = var_5; [L156] state_20 = init_21_arg_1 [L157] SORT_2 init_23_arg_1 = var_5; [L158] state_22 = init_23_arg_1 [L159] SORT_2 init_25_arg_1 = var_5; [L160] state_24 = init_25_arg_1 [L161] SORT_2 init_27_arg_1 = var_5; [L162] state_26 = init_27_arg_1 [L163] SORT_2 init_29_arg_1 = var_5; [L164] state_28 = init_29_arg_1 [L165] SORT_2 init_31_arg_1 = var_5; [L166] state_30 = init_31_arg_1 [L167] SORT_2 init_33_arg_1 = var_5; [L168] state_32 = init_33_arg_1 [L169] SORT_2 init_35_arg_1 = var_5; [L170] state_34 = init_35_arg_1 [L171] SORT_2 init_37_arg_1 = var_5; [L172] state_36 = init_37_arg_1 [L173] SORT_2 init_39_arg_1 = var_5; [L174] state_38 = init_39_arg_1 [L175] SORT_2 init_41_arg_1 = var_5; [L176] state_40 = init_41_arg_1 [L177] SORT_2 init_43_arg_1 = var_5; [L178] state_42 = init_43_arg_1 [L179] SORT_2 init_45_arg_1 = var_5; [L180] state_44 = init_45_arg_1 [L181] SORT_2 init_47_arg_1 = var_5; [L182] state_46 = init_47_arg_1 [L183] SORT_2 init_49_arg_1 = var_5; [L184] state_48 = init_49_arg_1 [L185] SORT_2 init_51_arg_1 = var_5; [L186] state_50 = init_51_arg_1 [L187] SORT_2 init_53_arg_1 = var_5; [L188] state_52 = init_53_arg_1 [L189] SORT_2 init_55_arg_1 = var_5; [L190] state_54 = init_55_arg_1 [L191] SORT_2 init_57_arg_1 = var_5; [L192] state_56 = init_57_arg_1 [L193] SORT_2 init_59_arg_1 = var_5; [L194] state_58 = init_59_arg_1 [L195] SORT_2 init_61_arg_1 = var_5; [L196] state_60 = init_61_arg_1 [L197] SORT_2 init_63_arg_1 = var_5; [L198] state_62 = init_63_arg_1 [L199] SORT_2 init_65_arg_1 = var_5; [L200] state_64 = init_65_arg_1 [L201] SORT_2 init_67_arg_1 = var_5; [L202] state_66 = init_67_arg_1 [L203] SORT_2 init_69_arg_1 = var_5; [L204] state_68 = init_69_arg_1 [L205] SORT_2 init_71_arg_1 = var_5; [L206] state_70 = init_71_arg_1 [L207] SORT_2 init_73_arg_1 = var_5; [L208] state_72 = init_73_arg_1 [L209] SORT_2 init_75_arg_1 = var_5; [L210] state_74 = init_75_arg_1 [L211] SORT_2 init_77_arg_1 = var_5; [L212] state_76 = init_77_arg_1 [L213] SORT_2 init_79_arg_1 = var_5; [L214] state_78 = init_79_arg_1 [L215] SORT_2 init_81_arg_1 = var_5; [L216] state_80 = init_81_arg_1 [L217] SORT_2 init_83_arg_1 = var_5; [L218] state_82 = init_83_arg_1 [L219] SORT_2 init_85_arg_1 = var_5; [L220] state_84 = init_85_arg_1 [L221] SORT_2 init_87_arg_1 = var_5; [L222] state_86 = init_87_arg_1 [L223] SORT_2 init_89_arg_1 = var_5; [L224] state_88 = init_89_arg_1 [L225] SORT_2 init_91_arg_1 = var_5; [L226] state_90 = init_91_arg_1 [L227] SORT_2 init_93_arg_1 = var_5; [L228] state_92 = init_93_arg_1 [L229] SORT_2 init_95_arg_1 = var_5; [L230] state_94 = init_95_arg_1 [L231] SORT_2 init_97_arg_1 = var_5; [L232] state_96 = init_97_arg_1 [L233] SORT_2 init_99_arg_1 = var_5; [L234] state_98 = init_99_arg_1 [L235] SORT_2 init_101_arg_1 = var_5; [L236] state_100 = init_101_arg_1 [L237] SORT_2 init_103_arg_1 = var_5; [L238] state_102 = init_103_arg_1 [L239] SORT_2 init_105_arg_1 = var_5; [L240] state_104 = init_105_arg_1 [L241] SORT_2 init_107_arg_1 = var_5; [L242] state_106 = init_107_arg_1 [L243] SORT_1 init_110_arg_1 = var_108; [L244] state_109 = init_110_arg_1 [L245] SORT_1 init_112_arg_1 = var_108; [L246] state_111 = init_112_arg_1 [L247] SORT_1 init_114_arg_1 = var_108; [L248] state_113 = init_114_arg_1 [L249] SORT_1 init_116_arg_1 = var_108; [L250] state_115 = init_116_arg_1 [L251] SORT_1 init_118_arg_1 = var_108; [L252] state_117 = init_118_arg_1 [L253] SORT_1 init_120_arg_1 = var_108; [L254] state_119 = init_120_arg_1 [L255] SORT_1 init_122_arg_1 = var_108; [L256] state_121 = init_122_arg_1 VAL [init_101_arg_1=0, init_103_arg_1=0, init_105_arg_1=0, init_107_arg_1=0, init_110_arg_1=0, init_112_arg_1=0, init_114_arg_1=0, init_116_arg_1=0, init_118_arg_1=0, init_11_arg_1=0, init_120_arg_1=0, init_122_arg_1=0, init_13_arg_1=0, init_15_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_21_arg_1=0, init_23_arg_1=0, init_25_arg_1=0, init_27_arg_1=0, init_29_arg_1=0, init_31_arg_1=0, init_33_arg_1=0, init_35_arg_1=0, init_37_arg_1=0, init_39_arg_1=0, init_41_arg_1=0, init_43_arg_1=0, init_45_arg_1=0, init_47_arg_1=0, init_49_arg_1=0, init_51_arg_1=0, init_53_arg_1=0, init_55_arg_1=0, init_57_arg_1=0, init_59_arg_1=0, init_61_arg_1=0, init_63_arg_1=0, init_65_arg_1=0, init_67_arg_1=0, init_69_arg_1=0, init_71_arg_1=0, init_73_arg_1=0, init_75_arg_1=0, init_77_arg_1=0, init_79_arg_1=0, init_7_arg_1=0, init_81_arg_1=0, init_83_arg_1=0, init_85_arg_1=0, init_87_arg_1=0, init_89_arg_1=0, init_91_arg_1=0, init_93_arg_1=0, init_95_arg_1=0, init_97_arg_1=0, init_99_arg_1=0, init_9_arg_1=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=4294967295, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_100=0, state_102=0, state_104=0, state_106=0, state_109=0, state_111=0, state_113=0, state_115=0, state_117=0, state_119=0, state_12=0, state_121=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_24=0, state_26=0, state_28=0, state_30=0, state_32=0, state_34=0, state_36=0, state_38=0, state_40=0, state_42=0, state_44=0, state_46=0, state_48=0, state_50=0, state_52=0, state_54=0, state_56=0, state_58=0, state_6=0, state_60=0, state_62=0, state_64=0, state_66=0, state_68=0, state_70=0, state_72=0, state_74=0, state_76=0, state_78=0, state_8=0, state_80=0, state_82=0, state_84=0, state_86=0, state_88=0, state_90=0, state_92=0, state_94=0, state_96=0, state_98=0, var_108=0, var_123=15, var_124=1, var_129=100, var_130=0, var_131=16, var_136=0, var_137=0, var_139=1, var_144=2, var_146=3, var_148=4, var_150=5, var_152=6, var_154=7, var_156=8, var_158=9, var_160=10, var_162=11, var_164=12, var_166=13, var_168=14, var_248=14, var_249=2, var_263=13, var_264=3, var_278=12, var_279=4, var_293=11, var_294=5, var_308=10, var_309=6, var_323=9, var_324=7, var_338=8, var_433=15, var_5=0] [L259] input_134 = __VERIFIER_nondet_uchar() [L260] input_134 = input_134 & mask_SORT_1 [L261] input_185 = __VERIFIER_nondet_uchar() [L262] input_185 = input_185 & mask_SORT_1 [L263] input_224 = __VERIFIER_nondet_uchar() [L264] input_224 = input_224 & mask_SORT_1 [L265] input_226 = __VERIFIER_nondet_uchar() [L266] input_226 = input_226 & mask_SORT_1 [L267] input_454 = __VERIFIER_nondet_uchar() [L268] input_454 = input_454 & mask_SORT_1 [L269] input_456 = __VERIFIER_nondet_uchar() [L270] input_456 = input_456 & mask_SORT_1 [L273] SORT_2 var_125_arg_0 = var_124; [L274] SORT_2 var_125_arg_1 = state_106; [L275] SORT_2 var_125 = var_125_arg_0 ^ var_125_arg_1; [L276] var_125 = var_125 & mask_SORT_2 [L277] SORT_2 var_126_arg_0 = var_123; [L278] SORT_2 var_126_arg_1 = var_125; [L279] SORT_1 var_126 = var_126_arg_0 == var_126_arg_1; [L280] SORT_1 var_127_arg_0 = var_126; [L281] SORT_1 var_127_arg_1 = ~state_121; [L282] var_127_arg_1 = var_127_arg_1 & mask_SORT_1 [L283] SORT_1 var_127 = var_127_arg_0 & var_127_arg_1; [L284] var_127 = var_127 & mask_SORT_1 [L285] SORT_1 bad_128_arg_0 = var_127; [L286] CALL __VERIFIER_assert(!(bad_128_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: 0.8s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-19 08:31:07,627 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53db5d8e-5f10-41d2-aaf9-3ca424675657/bin/utaipan-I9t0OCRTmS/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_53db5d8e-5f10-41d2-aaf9-3ca424675657/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53db5d8e-5f10-41d2-aaf9-3ca424675657/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53db5d8e-5f10-41d2-aaf9-3ca424675657/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53db5d8e-5f10-41d2-aaf9-3ca424675657/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.hanoi.3.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53db5d8e-5f10-41d2-aaf9-3ca424675657/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53db5d8e-5f10-41d2-aaf9-3ca424675657/bin/utaipan-I9t0OCRTmS --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 4dc0b31711bfc38df187f78180a845f60ef5b637a02cb40e580c2ade20e6b540 --- 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-8393723 [2022-11-19 08:31:10,276 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:31:10,278 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:31:10,310 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:31:10,314 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:31:10,317 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:31:10,319 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:31:10,321 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:31:10,323 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:31:10,331 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:31:10,332 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:31:10,334 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:31:10,336 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:31:10,338 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:31:10,340 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:31:10,342 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:31:10,344 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:31:10,346 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:31:10,347 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:31:10,352 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:31:10,357 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:31:10,363 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:31:10,364 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:31:10,365 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:31:10,369 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:31:10,375 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:31:10,375 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:31:10,376 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:31:10,378 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:31:10,379 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:31:10,380 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:31:10,381 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:31:10,382 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:31:10,383 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:31:10,384 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:31:10,385 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:31:10,385 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:31:10,386 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:31:10,386 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:31:10,388 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:31:10,389 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:31:10,390 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53db5d8e-5f10-41d2-aaf9-3ca424675657/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-19 08:31:10,436 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:31:10,439 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:31:10,440 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:31:10,440 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:31:10,441 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:31:10,442 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:31:10,442 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:31:10,442 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:31:10,442 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:31:10,443 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:31:10,444 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:31:10,444 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:31:10,446 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:31:10,446 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:31:10,446 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 08:31:10,446 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:31:10,447 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 08:31:10,447 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-19 08:31:10,447 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-19 08:31:10,447 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-19 08:31:10,448 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 08:31:10,448 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:31:10,448 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 08:31:10,448 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:31:10,449 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-19 08:31:10,449 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:31:10,449 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:31:10,449 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:31:10,450 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:31:10,450 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 08:31:10,450 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-19 08:31:10,450 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-19 08:31:10,451 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 08:31:10,451 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:31:10,452 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-19 08:31:10,452 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_53db5d8e-5f10-41d2-aaf9-3ca424675657/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53db5d8e-5f10-41d2-aaf9-3ca424675657/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4dc0b31711bfc38df187f78180a845f60ef5b637a02cb40e580c2ade20e6b540 [2022-11-19 08:31:10,909 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:31:10,942 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:31:10,946 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:31:10,947 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:31:10,948 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:31:10,951 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53db5d8e-5f10-41d2-aaf9-3ca424675657/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.hanoi.3.prop1-func-interl.c [2022-11-19 08:31:11,042 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53db5d8e-5f10-41d2-aaf9-3ca424675657/bin/utaipan-I9t0OCRTmS/data/2ce82a350/5ab692a801f9484885b787c8c0ae9f46/FLAGd87675b7b [2022-11-19 08:31:11,900 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:31:11,900 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53db5d8e-5f10-41d2-aaf9-3ca424675657/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.hanoi.3.prop1-func-interl.c [2022-11-19 08:31:11,921 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53db5d8e-5f10-41d2-aaf9-3ca424675657/bin/utaipan-I9t0OCRTmS/data/2ce82a350/5ab692a801f9484885b787c8c0ae9f46/FLAGd87675b7b [2022-11-19 08:31:12,008 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53db5d8e-5f10-41d2-aaf9-3ca424675657/bin/utaipan-I9t0OCRTmS/data/2ce82a350/5ab692a801f9484885b787c8c0ae9f46 [2022-11-19 08:31:12,010 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:31:12,011 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:31:12,013 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:31:12,013 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:31:12,017 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:31:12,018 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:31:12" (1/1) ... [2022-11-19 08:31:12,019 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21e9f574 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:31:12, skipping insertion in model container [2022-11-19 08:31:12,019 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:31:12" (1/1) ... [2022-11-19 08:31:12,033 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:31:12,126 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:31:12,317 WARN L234 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_53db5d8e-5f10-41d2-aaf9-3ca424675657/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.hanoi.3.prop1-func-interl.c[1014,1027] [2022-11-19 08:31:12,918 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:31:12,925 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:31:12,941 WARN L234 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_53db5d8e-5f10-41d2-aaf9-3ca424675657/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.hanoi.3.prop1-func-interl.c[1014,1027] [2022-11-19 08:31:13,216 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:31:13,230 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:31:13,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:31:13 WrapperNode [2022-11-19 08:31:13,232 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:31:13,233 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:31:13,233 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:31:13,234 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:31:13,243 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:31:13" (1/1) ... [2022-11-19 08:31:13,327 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:31:13" (1/1) ... [2022-11-19 08:31:13,536 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2840 [2022-11-19 08:31:13,536 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:31:13,537 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:31:13,537 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:31:13,538 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:31:13,549 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:31:13" (1/1) ... [2022-11-19 08:31:13,550 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:31:13" (1/1) ... [2022-11-19 08:31:13,587 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:31:13" (1/1) ... [2022-11-19 08:31:13,588 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:31:13" (1/1) ... [2022-11-19 08:31:13,645 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:31:13" (1/1) ... [2022-11-19 08:31:13,663 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:31:13" (1/1) ... [2022-11-19 08:31:13,693 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:31:13" (1/1) ... [2022-11-19 08:31:13,714 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:31:13" (1/1) ... [2022-11-19 08:31:13,754 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:31:13,755 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:31:13,756 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:31:13,756 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:31:13,757 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:31:13" (1/1) ... [2022-11-19 08:31:13,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:31:13,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53db5d8e-5f10-41d2-aaf9-3ca424675657/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:31:13,792 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53db5d8e-5f10-41d2-aaf9-3ca424675657/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:31:13,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53db5d8e-5f10-41d2-aaf9-3ca424675657/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:31:13,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:31:13,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:31:14,675 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:31:14,692 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:31:22,155 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:31:22,166 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:31:22,166 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-19 08:31:22,168 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:31:22 BoogieIcfgContainer [2022-11-19 08:31:22,169 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:31:22,171 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:31:22,171 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:31:22,175 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:31:22,175 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:31:12" (1/3) ... [2022-11-19 08:31:22,176 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a6b95cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:31:22, skipping insertion in model container [2022-11-19 08:31:22,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:31:13" (2/3) ... [2022-11-19 08:31:22,177 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a6b95cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:31:22, skipping insertion in model container [2022-11-19 08:31:22,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:31:22" (3/3) ... [2022-11-19 08:31:22,179 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.hanoi.3.prop1-func-interl.c [2022-11-19 08:31:22,203 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:31:22,203 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 08:31:22,296 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 08:31:22,307 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;@557cb8eb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 08:31:22,307 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 08:31:22,316 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:31:22,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-19 08:31:22,324 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:31:22,325 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-19 08:31:22,326 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:31:22,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:31:22,332 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-19 08:31:22,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:31:22,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [151687118] [2022-11-19 08:31:22,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:31:22,350 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:31:22,350 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53db5d8e-5f10-41d2-aaf9-3ca424675657/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:31:22,357 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53db5d8e-5f10-41d2-aaf9-3ca424675657/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:31:22,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53db5d8e-5f10-41d2-aaf9-3ca424675657/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-19 08:31:23,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:31:23,051 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-19 08:31:23,068 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:31:23,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:31:23,360 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:31:23,361 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:31:23,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [151687118] [2022-11-19 08:31:23,362 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [151687118] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:31:23,362 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:31:23,362 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 08:31:23,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350945105] [2022-11-19 08:31:23,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:31:23,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:31:23,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:31:23,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:31:23,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:31:23,408 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:31:24,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:31:24,195 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-19 08:31:24,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 08:31:24,198 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-19 08:31:24,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:31:24,206 INFO L225 Difference]: With dead ends: 20 [2022-11-19 08:31:24,207 INFO L226 Difference]: Without dead ends: 11 [2022-11-19 08:31:24,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:31:24,215 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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, 0.7s IncrementalHoareTripleChecker+Time [2022-11-19 08:31:24,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-19 08:31:24,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-19 08:31:24,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-19 08:31:24,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:31:24,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-19 08:31:24,255 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-19 08:31:24,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:31:24,255 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-19 08:31:24,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:31:24,256 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-19 08:31:24,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-19 08:31:24,257 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:31:24,257 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-19 08:31:24,279 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53db5d8e-5f10-41d2-aaf9-3ca424675657/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-19 08:31:24,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53db5d8e-5f10-41d2-aaf9-3ca424675657/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:31:24,474 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:31:24,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:31:24,475 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-19 08:31:24,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:31:24,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2145601643] [2022-11-19 08:31:24,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:31:24,482 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:31:24,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53db5d8e-5f10-41d2-aaf9-3ca424675657/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:31:24,484 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53db5d8e-5f10-41d2-aaf9-3ca424675657/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:31:24,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53db5d8e-5f10-41d2-aaf9-3ca424675657/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-19 08:31:26,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:31:26,441 INFO L263 TraceCheckSpWp]: Trace formula consists of 2485 conjuncts, 52 conjunts are in the unsatisfiable core [2022-11-19 08:31:26,469 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:31:27,435 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:31:27,436 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:31:28,427 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:31:28,427 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:31:28,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2145601643] [2022-11-19 08:31:28,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2145601643] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:31:28,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [517708761] [2022-11-19 08:31:28,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:31:28,429 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 08:31:28,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53db5d8e-5f10-41d2-aaf9-3ca424675657/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 08:31:28,433 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53db5d8e-5f10-41d2-aaf9-3ca424675657/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 08:31:28,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53db5d8e-5f10-41d2-aaf9-3ca424675657/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2022-11-19 08:31:31,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:31:31,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 2485 conjuncts, 257 conjunts are in the unsatisfiable core [2022-11-19 08:31:31,743 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:31:38,714 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Maybe an infinite loop [2022-11-19 08:31:38,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1053644508] [2022-11-19 08:31:38,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:31:38,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:31:38,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53db5d8e-5f10-41d2-aaf9-3ca424675657/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:31:38,723 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53db5d8e-5f10-41d2-aaf9-3ca424675657/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:31:38,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53db5d8e-5f10-41d2-aaf9-3ca424675657/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-19 08:31:40,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:31:40,151 INFO L263 TraceCheckSpWp]: Trace formula consists of 2485 conjuncts, 160 conjunts are in the unsatisfiable core [2022-11-19 08:31:40,180 INFO L286 TraceCheckSpWp]: Computing forward predicates...