./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal55.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_2cde4f2b-fd75-4db5-b270-01d01937faab/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cde4f2b-fd75-4db5-b270-01d01937faab/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_2cde4f2b-fd75-4db5-b270-01d01937faab/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cde4f2b-fd75-4db5-b270-01d01937faab/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal55.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cde4f2b-fd75-4db5-b270-01d01937faab/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_2cde4f2b-fd75-4db5-b270-01d01937faab/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 08891daee860d4f5c8b9eb372c77be9c8f68c10ee67e3866dfab61bc12575d92 --- 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 07:34:46,663 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:34:46,665 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:34:46,687 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:34:46,687 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:34:46,689 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:34:46,690 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:34:46,692 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:34:46,694 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:34:46,695 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:34:46,696 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:34:46,697 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:34:46,698 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:34:46,699 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:34:46,701 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:34:46,702 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:34:46,703 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:34:46,704 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:34:46,706 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:34:46,709 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:34:46,711 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:34:46,712 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:34:46,714 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:34:46,715 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:34:46,719 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:34:46,720 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:34:46,720 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:34:46,721 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:34:46,722 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:34:46,723 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:34:46,723 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:34:46,724 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:34:46,725 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:34:46,726 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:34:46,728 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:34:46,728 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:34:46,729 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:34:46,730 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:34:46,730 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:34:46,731 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:34:46,732 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:34:46,734 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cde4f2b-fd75-4db5-b270-01d01937faab/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-19 07:34:46,759 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:34:46,759 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:34:46,760 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:34:46,760 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:34:46,761 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:34:46,761 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:34:46,761 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:34:46,762 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:34:46,762 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:34:46,762 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:34:46,763 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:34:46,763 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:34:46,763 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:34:46,764 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:34:46,764 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:34:46,764 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:34:46,765 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:34:46,765 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:34:46,766 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:34:46,766 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:34:46,766 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:34:46,767 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:34:46,767 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:34:46,767 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:34:46,768 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:34:46,768 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:34:46,768 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:34:46,769 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:34:46,769 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:34:46,769 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:34:46,770 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:34:46,770 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:34:46,770 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:34:46,770 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:34:46,771 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:34:46,771 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:34:46,771 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:34:46,772 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:34:46,772 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_2cde4f2b-fd75-4db5-b270-01d01937faab/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cde4f2b-fd75-4db5-b270-01d01937faab/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 08891daee860d4f5c8b9eb372c77be9c8f68c10ee67e3866dfab61bc12575d92 [2022-11-19 07:34:47,059 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:34:47,087 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:34:47,090 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:34:47,092 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:34:47,093 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:34:47,094 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cde4f2b-fd75-4db5-b270-01d01937faab/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal55.c [2022-11-19 07:34:47,182 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cde4f2b-fd75-4db5-b270-01d01937faab/bin/utaipan-I9t0OCRTmS/data/92a461d95/d4d02c7b5c0749e7a9cba83bd02570f4/FLAG6e0bdd9be [2022-11-19 07:34:47,674 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:34:47,675 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cde4f2b-fd75-4db5-b270-01d01937faab/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal55.c [2022-11-19 07:34:47,692 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cde4f2b-fd75-4db5-b270-01d01937faab/bin/utaipan-I9t0OCRTmS/data/92a461d95/d4d02c7b5c0749e7a9cba83bd02570f4/FLAG6e0bdd9be [2022-11-19 07:34:48,030 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cde4f2b-fd75-4db5-b270-01d01937faab/bin/utaipan-I9t0OCRTmS/data/92a461d95/d4d02c7b5c0749e7a9cba83bd02570f4 [2022-11-19 07:34:48,033 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:34:48,035 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:34:48,040 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:34:48,040 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:34:48,044 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:34:48,045 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:34:48" (1/1) ... [2022-11-19 07:34:48,046 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f1d0f0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:48, skipping insertion in model container [2022-11-19 07:34:48,046 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:34:48" (1/1) ... [2022-11-19 07:34:48,055 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:34:48,098 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:34:48,314 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_2cde4f2b-fd75-4db5-b270-01d01937faab/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal55.c[1107,1120] [2022-11-19 07:34:48,430 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:34:48,436 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:34:48,450 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_2cde4f2b-fd75-4db5-b270-01d01937faab/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal55.c[1107,1120] [2022-11-19 07:34:48,523 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:34:48,537 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:34:48,538 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:48 WrapperNode [2022-11-19 07:34:48,538 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:34:48,540 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:34:48,540 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:34:48,540 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:34:48,547 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:48" (1/1) ... [2022-11-19 07:34:48,571 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:48" (1/1) ... [2022-11-19 07:34:48,615 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 248 [2022-11-19 07:34:48,619 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:34:48,620 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:34:48,620 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:34:48,621 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:34:48,630 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:48" (1/1) ... [2022-11-19 07:34:48,630 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:48" (1/1) ... [2022-11-19 07:34:48,647 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:48" (1/1) ... [2022-11-19 07:34:48,652 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:48" (1/1) ... [2022-11-19 07:34:48,658 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:48" (1/1) ... [2022-11-19 07:34:48,678 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:48" (1/1) ... [2022-11-19 07:34:48,679 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:48" (1/1) ... [2022-11-19 07:34:48,681 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:48" (1/1) ... [2022-11-19 07:34:48,684 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:34:48,685 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:34:48,685 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:34:48,685 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:34:48,686 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:48" (1/1) ... [2022-11-19 07:34:48,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:34:48,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cde4f2b-fd75-4db5-b270-01d01937faab/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:34:48,732 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cde4f2b-fd75-4db5-b270-01d01937faab/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:34:48,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cde4f2b-fd75-4db5-b270-01d01937faab/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:34:48,777 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:34:48,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:34:48,935 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:34:48,937 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:34:49,345 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:34:49,668 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:34:49,669 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-19 07:34:49,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:34:49 BoogieIcfgContainer [2022-11-19 07:34:49,673 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:34:49,677 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:34:49,677 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:34:49,682 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:34:49,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:34:48" (1/3) ... [2022-11-19 07:34:49,684 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63f3b1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:34:49, skipping insertion in model container [2022-11-19 07:34:49,685 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:48" (2/3) ... [2022-11-19 07:34:49,686 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63f3b1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:34:49, skipping insertion in model container [2022-11-19 07:34:49,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:34:49" (3/3) ... [2022-11-19 07:34:49,687 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal55.c [2022-11-19 07:34:49,707 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:34:49,707 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 07:34:49,792 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:34:49,802 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;@5cb15c4a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:34:49,803 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 07:34:49,807 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 07:34:49,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-19 07:34:49,814 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:34:49,815 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-19 07:34:49,816 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:34:49,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:34:49,823 INFO L85 PathProgramCache]: Analyzing trace with hash 5587477, now seen corresponding path program 1 times [2022-11-19 07:34:49,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:34:49,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793039453] [2022-11-19 07:34:49,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:34:49,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:34:50,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 07:34:50,180 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-19 07:34:50,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 07:34:50,450 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-19 07:34:50,452 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-19 07:34:50,453 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-19 07:34:50,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 07:34:50,460 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-19 07:34:50,464 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 07:34:50,482 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-19 07:34:50,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:34:50 BoogieIcfgContainer [2022-11-19 07:34:50,496 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 07:34:50,498 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 07:34:50,498 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 07:34:50,498 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 07:34:50,500 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:34:49" (3/4) ... [2022-11-19 07:34:50,503 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-19 07:34:50,503 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 07:34:50,506 INFO L158 Benchmark]: Toolchain (without parser) took 2470.87ms. Allocated memory was 104.9MB in the beginning and 134.2MB in the end (delta: 29.4MB). Free memory was 73.6MB in the beginning and 63.0MB in the end (delta: 10.6MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2022-11-19 07:34:50,506 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 104.9MB. Free memory is still 58.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:34:50,507 INFO L158 Benchmark]: CACSL2BoogieTranslator took 498.32ms. Allocated memory is still 104.9MB. Free memory was 73.3MB in the beginning and 77.8MB in the end (delta: -4.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-19 07:34:50,509 INFO L158 Benchmark]: Boogie Procedure Inliner took 79.84ms. Allocated memory is still 104.9MB. Free memory was 77.8MB in the beginning and 75.0MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:34:50,510 INFO L158 Benchmark]: Boogie Preprocessor took 64.33ms. Allocated memory is still 104.9MB. Free memory was 75.0MB in the beginning and 73.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:34:50,515 INFO L158 Benchmark]: RCFGBuilder took 988.50ms. Allocated memory was 104.9MB in the beginning and 134.2MB in the end (delta: 29.4MB). Free memory was 73.1MB in the beginning and 72.7MB in the end (delta: 442.3kB). Peak memory consumption was 32.5MB. Max. memory is 16.1GB. [2022-11-19 07:34:50,517 INFO L158 Benchmark]: TraceAbstraction took 819.24ms. Allocated memory is still 134.2MB. Free memory was 71.5MB in the beginning and 63.5MB in the end (delta: 8.1MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. [2022-11-19 07:34:50,518 INFO L158 Benchmark]: Witness Printer took 6.40ms. Allocated memory is still 134.2MB. Free memory was 63.5MB in the beginning and 63.0MB in the end (delta: 448.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:34:50,526 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 104.9MB. Free memory is still 58.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 498.32ms. Allocated memory is still 104.9MB. Free memory was 73.3MB in the beginning and 77.8MB in the end (delta: -4.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 79.84ms. Allocated memory is still 104.9MB. Free memory was 77.8MB in the beginning and 75.0MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 64.33ms. Allocated memory is still 104.9MB. Free memory was 75.0MB in the beginning and 73.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 988.50ms. Allocated memory was 104.9MB in the beginning and 134.2MB in the end (delta: 29.4MB). Free memory was 73.1MB in the beginning and 72.7MB in the end (delta: 442.3kB). Peak memory consumption was 32.5MB. Max. memory is 16.1GB. * TraceAbstraction took 819.24ms. Allocated memory is still 134.2MB. Free memory was 71.5MB in the beginning and 63.5MB in the end (delta: 8.1MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. * Witness Printer took 6.40ms. Allocated memory is still 134.2MB. Free memory was 63.5MB in the beginning and 63.0MB in the end (delta: 448.2kB). 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 93, overapproximation of bitwiseComplement at line 77, overapproximation of bitwiseAnd at line 65. 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_5 mask_SORT_5 = (SORT_5)-1 >> (sizeof(SORT_5) * 8 - 3); [L29] const SORT_5 msb_SORT_5 = (SORT_5)1 << (3 - 1); [L31] const SORT_26 mask_SORT_26 = (SORT_26)-1 >> (sizeof(SORT_26) * 8 - 2); [L32] const SORT_26 msb_SORT_26 = (SORT_26)1 << (2 - 1); [L34] const SORT_1 var_11 = 0; [L35] const SORT_5 var_15 = 0; [L36] const SORT_5 var_21 = 5; [L37] const SORT_5 var_23 = 4; [L38] const SORT_1 var_39 = 1; [L40] SORT_1 input_2; [L41] SORT_1 input_3; [L42] SORT_1 input_4; [L43] SORT_5 input_6; [L44] SORT_5 input_7; [L45] SORT_1 input_8; [L46] SORT_5 input_9; [L47] SORT_5 input_10; [L49] SORT_1 state_12 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L50] SORT_5 state_16 = __VERIFIER_nondet_uchar() & mask_SORT_5; [L51] SORT_1 state_18 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L52] SORT_5 state_29 = __VERIFIER_nondet_uchar() & mask_SORT_5; [L54] SORT_1 init_13_arg_1 = var_11; [L55] state_12 = init_13_arg_1 [L56] SORT_5 init_17_arg_1 = var_15; [L57] state_16 = init_17_arg_1 [L58] SORT_1 init_19_arg_1 = var_11; [L59] state_18 = init_19_arg_1 [L60] SORT_5 init_30_arg_1 = var_15; [L61] state_29 = init_30_arg_1 VAL [init_13_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_30_arg_1=0, mask_SORT_1=1, mask_SORT_26=3, mask_SORT_5=7, msb_SORT_1=1, msb_SORT_26=2, msb_SORT_5=4, state_12=0, state_16=0, state_18=0, state_29=0, var_11=0, var_15=0, var_21=5, var_23=4, var_39=1] [L64] input_2 = __VERIFIER_nondet_uchar() [L65] input_2 = input_2 & mask_SORT_1 [L66] input_3 = __VERIFIER_nondet_uchar() [L67] input_3 = input_3 & mask_SORT_1 [L68] input_4 = __VERIFIER_nondet_uchar() [L69] input_6 = __VERIFIER_nondet_uchar() [L70] input_7 = __VERIFIER_nondet_uchar() [L71] input_8 = __VERIFIER_nondet_uchar() [L72] input_9 = __VERIFIER_nondet_uchar() [L73] input_10 = __VERIFIER_nondet_uchar() [L76] SORT_1 var_14_arg_0 = state_12; [L77] SORT_1 var_14 = ~var_14_arg_0; [L78] SORT_1 var_20_arg_0 = state_18; [L79] SORT_5 var_20_arg_1 = state_16; [L80] SORT_5 var_20_arg_2 = input_7; [L81] SORT_5 var_20 = var_20_arg_0 ? var_20_arg_1 : var_20_arg_2; [L82] var_20 = var_20 & mask_SORT_5 [L83] SORT_5 var_24_arg_0 = var_20; [L84] SORT_5 var_24_arg_1 = var_23; [L85] SORT_1 var_24 = var_24_arg_0 == var_24_arg_1; [L86] SORT_1 var_25_arg_0 = var_24; [L87] SORT_1 var_25 = ~var_25_arg_0; [L88] SORT_5 var_22_arg_0 = var_20; [L89] SORT_5 var_22_arg_1 = var_21; [L90] SORT_1 var_22 = var_22_arg_0 == var_22_arg_1; [L91] SORT_1 var_27_arg_0 = var_25; [L92] SORT_1 var_27_arg_1 = var_22; [L93] SORT_26 var_27 = ((SORT_26)var_27_arg_0 << 1) | var_27_arg_1; [L94] var_27 = var_27 & mask_SORT_26 [L95] SORT_26 var_28_arg_0 = var_27; [L96] SORT_1 var_28 = var_28_arg_0 == mask_SORT_26; [L97] SORT_1 var_31_arg_0 = state_18; [L98] SORT_5 var_31_arg_1 = state_29; [L99] SORT_5 var_31_arg_2 = input_7; [L100] SORT_5 var_31 = var_31_arg_0 ? var_31_arg_1 : var_31_arg_2; [L101] var_31 = var_31 & mask_SORT_5 [L102] SORT_5 var_32_arg_0 = var_31; [L103] SORT_5 var_32_arg_1 = var_21; [L104] SORT_1 var_32 = var_32_arg_0 == var_32_arg_1; [L105] SORT_1 var_33_arg_0 = var_25; [L106] SORT_1 var_33_arg_1 = var_32; [L107] SORT_26 var_33 = ((SORT_26)var_33_arg_0 << 1) | var_33_arg_1; [L108] var_33 = var_33 & mask_SORT_26 [L109] SORT_26 var_34_arg_0 = var_33; [L110] SORT_1 var_34 = var_34_arg_0 == mask_SORT_26; [L111] SORT_1 var_35_arg_0 = var_28; [L112] SORT_1 var_35_arg_1 = var_34; [L113] SORT_1 var_35 = var_35_arg_0 == var_35_arg_1; [L114] SORT_1 var_36_arg_0 = var_14; [L115] SORT_1 var_36_arg_1 = var_35; [L116] SORT_1 var_36 = var_36_arg_0 | var_36_arg_1; [L117] SORT_1 var_40_arg_0 = var_36; [L118] SORT_1 var_40 = ~var_40_arg_0; [L119] SORT_1 var_41_arg_0 = var_39; [L120] SORT_1 var_41_arg_1 = var_40; [L121] SORT_1 var_41 = var_41_arg_0 & var_41_arg_1; [L122] var_41 = var_41 & mask_SORT_1 [L123] SORT_1 bad_42_arg_0 = var_41; [L124] CALL __VERIFIER_assert(!(bad_42_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: 0.7s, 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, 0.3s 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 07:34:50,554 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cde4f2b-fd75-4db5-b270-01d01937faab/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cde4f2b-fd75-4db5-b270-01d01937faab/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cde4f2b-fd75-4db5-b270-01d01937faab/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_2cde4f2b-fd75-4db5-b270-01d01937faab/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cde4f2b-fd75-4db5-b270-01d01937faab/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal55.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cde4f2b-fd75-4db5-b270-01d01937faab/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_2cde4f2b-fd75-4db5-b270-01d01937faab/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 08891daee860d4f5c8b9eb372c77be9c8f68c10ee67e3866dfab61bc12575d92 --- 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 07:34:52,837 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:34:52,840 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:34:52,878 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:34:52,878 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:34:52,882 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:34:52,884 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:34:52,889 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:34:52,891 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:34:52,899 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:34:52,900 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:34:52,903 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:34:52,903 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:34:52,906 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:34:52,907 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:34:52,908 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:34:52,911 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:34:52,912 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:34:52,917 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:34:52,920 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:34:52,925 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:34:52,926 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:34:52,928 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:34:52,930 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:34:52,936 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:34:52,940 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:34:52,940 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:34:52,941 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:34:52,943 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:34:52,944 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:34:52,945 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:34:52,945 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:34:52,947 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:34:52,948 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:34:52,949 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:34:52,949 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:34:52,950 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:34:52,954 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:34:52,955 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:34:52,956 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:34:52,956 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:34:52,957 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cde4f2b-fd75-4db5-b270-01d01937faab/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-19 07:34:52,999 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:34:52,999 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:34:53,001 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:34:53,002 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:34:53,003 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:34:53,003 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:34:53,003 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:34:53,003 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:34:53,004 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:34:53,004 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:34:53,005 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:34:53,005 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:34:53,007 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:34:53,007 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:34:53,007 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:34:53,008 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:34:53,008 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:34:53,008 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-19 07:34:53,008 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-19 07:34:53,009 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-19 07:34:53,009 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:34:53,009 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:34:53,009 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:34:53,009 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:34:53,010 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-19 07:34:53,010 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:34:53,010 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:34:53,010 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:34:53,010 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:34:53,011 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:34:53,011 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-19 07:34:53,011 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-19 07:34:53,012 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:34:53,012 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:34:53,012 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-19 07:34:53,012 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_2cde4f2b-fd75-4db5-b270-01d01937faab/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cde4f2b-fd75-4db5-b270-01d01937faab/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 08891daee860d4f5c8b9eb372c77be9c8f68c10ee67e3866dfab61bc12575d92 [2022-11-19 07:34:53,437 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:34:53,463 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:34:53,466 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:34:53,467 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:34:53,469 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:34:53,471 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cde4f2b-fd75-4db5-b270-01d01937faab/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal55.c [2022-11-19 07:34:53,546 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cde4f2b-fd75-4db5-b270-01d01937faab/bin/utaipan-I9t0OCRTmS/data/3c66a1781/b35b8b98de524b1098304a448e914a77/FLAG28d1c28e3 [2022-11-19 07:34:54,046 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:34:54,047 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cde4f2b-fd75-4db5-b270-01d01937faab/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal55.c [2022-11-19 07:34:54,056 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cde4f2b-fd75-4db5-b270-01d01937faab/bin/utaipan-I9t0OCRTmS/data/3c66a1781/b35b8b98de524b1098304a448e914a77/FLAG28d1c28e3 [2022-11-19 07:34:54,390 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cde4f2b-fd75-4db5-b270-01d01937faab/bin/utaipan-I9t0OCRTmS/data/3c66a1781/b35b8b98de524b1098304a448e914a77 [2022-11-19 07:34:54,394 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:34:54,396 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:34:54,429 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:34:54,429 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:34:54,434 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:34:54,435 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:34:54" (1/1) ... [2022-11-19 07:34:54,437 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12551489 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:54, skipping insertion in model container [2022-11-19 07:34:54,437 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:34:54" (1/1) ... [2022-11-19 07:34:54,445 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:34:54,481 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:34:54,634 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_2cde4f2b-fd75-4db5-b270-01d01937faab/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal55.c[1107,1120] [2022-11-19 07:34:54,693 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:34:54,708 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:34:54,719 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_2cde4f2b-fd75-4db5-b270-01d01937faab/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal55.c[1107,1120] [2022-11-19 07:34:54,777 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:34:54,802 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:34:54,803 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:54 WrapperNode [2022-11-19 07:34:54,803 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:34:54,804 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:34:54,804 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:34:54,804 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:34:54,812 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:54" (1/1) ... [2022-11-19 07:34:54,820 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:54" (1/1) ... [2022-11-19 07:34:54,848 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 178 [2022-11-19 07:34:54,848 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:34:54,849 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:34:54,849 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:34:54,849 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:34:54,858 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:54" (1/1) ... [2022-11-19 07:34:54,859 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:54" (1/1) ... [2022-11-19 07:34:54,862 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:54" (1/1) ... [2022-11-19 07:34:54,862 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:54" (1/1) ... [2022-11-19 07:34:54,869 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:54" (1/1) ... [2022-11-19 07:34:54,873 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:54" (1/1) ... [2022-11-19 07:34:54,875 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:54" (1/1) ... [2022-11-19 07:34:54,876 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:54" (1/1) ... [2022-11-19 07:34:54,879 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:34:54,880 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:34:54,880 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:34:54,881 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:34:54,881 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:54" (1/1) ... [2022-11-19 07:34:54,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:34:54,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cde4f2b-fd75-4db5-b270-01d01937faab/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:34:54,912 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cde4f2b-fd75-4db5-b270-01d01937faab/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:34:54,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cde4f2b-fd75-4db5-b270-01d01937faab/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:34:54,965 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:34:54,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:34:55,076 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:34:55,079 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:34:55,454 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:34:55,461 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:34:55,466 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-19 07:34:55,469 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:34:55 BoogieIcfgContainer [2022-11-19 07:34:55,469 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:34:55,471 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:34:55,472 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:34:55,475 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:34:55,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:34:54" (1/3) ... [2022-11-19 07:34:55,477 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b554c7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:34:55, skipping insertion in model container [2022-11-19 07:34:55,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:54" (2/3) ... [2022-11-19 07:34:55,478 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b554c7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:34:55, skipping insertion in model container [2022-11-19 07:34:55,478 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:34:55" (3/3) ... [2022-11-19 07:34:55,482 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal55.c [2022-11-19 07:34:55,501 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:34:55,502 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 07:34:55,577 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:34:55,585 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;@486b0552, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:34:55,586 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 07:34:55,592 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 07:34:55,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-19 07:34:55,602 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:34:55,602 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-19 07:34:55,603 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:34:55,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:34:55,611 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-19 07:34:55,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:34:55,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [557871880] [2022-11-19 07:34:55,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:34:55,627 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 07:34:55,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cde4f2b-fd75-4db5-b270-01d01937faab/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:34:55,635 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cde4f2b-fd75-4db5-b270-01d01937faab/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 07:34:55,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cde4f2b-fd75-4db5-b270-01d01937faab/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 07:34:55,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:34:55,847 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-19 07:34:55,854 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:34:56,021 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 07:34:56,021 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:34:56,022 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:34:56,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [557871880] [2022-11-19 07:34:56,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [557871880] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:34:56,024 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:34:56,025 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:34:56,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949095695] [2022-11-19 07:34:56,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:34:56,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:34:56,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:34:56,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:34:56,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:34:56,072 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 07:34:56,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:34:56,154 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-19 07:34:56,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:34:56,156 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 07:34:56,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:34:56,164 INFO L225 Difference]: With dead ends: 20 [2022-11-19 07:34:56,164 INFO L226 Difference]: Without dead ends: 11 [2022-11-19 07:34:56,167 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:34:56,170 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:34:56,171 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 07:34:56,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-19 07:34:56,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-19 07:34:56,193 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 07:34:56,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-19 07:34:56,195 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-19 07:34:56,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:34:56,196 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-19 07:34:56,196 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 07:34:56,196 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-19 07:34:56,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-19 07:34:56,197 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:34:56,197 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-19 07:34:56,208 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cde4f2b-fd75-4db5-b270-01d01937faab/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)] Ended with exit code 0 [2022-11-19 07:34:56,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cde4f2b-fd75-4db5-b270-01d01937faab/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 07:34:56,407 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:34:56,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:34:56,408 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-19 07:34:56,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:34:56,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1886310126] [2022-11-19 07:34:56,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:34:56,409 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 07:34:56,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cde4f2b-fd75-4db5-b270-01d01937faab/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:34:56,411 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cde4f2b-fd75-4db5-b270-01d01937faab/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 07:34:56,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cde4f2b-fd75-4db5-b270-01d01937faab/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 07:34:56,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:34:56,591 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 55 conjunts are in the unsatisfiable core [2022-11-19 07:34:56,596 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:34:57,289 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 07:34:57,289 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:35:00,849 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 07:35:00,849 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:35:00,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1886310126] [2022-11-19 07:35:00,850 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1886310126] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:35:00,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [902263316] [2022-11-19 07:35:00,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:35:00,851 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 07:35:00,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cde4f2b-fd75-4db5-b270-01d01937faab/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 07:35:00,853 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cde4f2b-fd75-4db5-b270-01d01937faab/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 07:35:00,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cde4f2b-fd75-4db5-b270-01d01937faab/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2022-11-19 07:35:01,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:35:01,073 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 66 conjunts are in the unsatisfiable core [2022-11-19 07:35:01,077 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:35:01,438 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 07:35:01,438 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:35:03,521 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 07:35:03,522 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [902263316] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:35:03,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [64977889] [2022-11-19 07:35:03,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:35:03,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:35:03,524 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cde4f2b-fd75-4db5-b270-01d01937faab/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:35:03,539 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cde4f2b-fd75-4db5-b270-01d01937faab/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:35:03,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cde4f2b-fd75-4db5-b270-01d01937faab/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-19 07:35:03,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:35:03,667 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 57 conjunts are in the unsatisfiable core [2022-11-19 07:35:03,671 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:35:04,024 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 07:35:04,025 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:35:05,826 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 07:35:05,826 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [64977889] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:35:05,827 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 07:35:05,827 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 6, 5, 6, 6] total 14 [2022-11-19 07:35:05,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230574962] [2022-11-19 07:35:05,828 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 07:35:05,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-19 07:35:05,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:35:05,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-19 07:35:05,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2022-11-19 07:35:05,831 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 14 states, 14 states have (on average 1.7857142857142858) internal successors, (25), 14 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:35:05,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:35:05,986 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-11-19 07:35:05,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 07:35:05,988 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.7857142857142858) internal successors, (25), 14 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-19 07:35:05,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:35:05,988 INFO L225 Difference]: With dead ends: 16 [2022-11-19 07:35:05,988 INFO L226 Difference]: Without dead ends: 14 [2022-11-19 07:35:05,989 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 25 SyntacticMatches, 5 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2022-11-19 07:35:05,990 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 17 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 10 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:35:05,991 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 21 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 0 Unknown, 10 Unchecked, 0.1s Time] [2022-11-19 07:35:05,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-19 07:35:05,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-11-19 07:35:05,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:35:05,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-11-19 07:35:05,995 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-11-19 07:35:05,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:35:05,995 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-11-19 07:35:05,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.7857142857142858) internal successors, (25), 14 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:35:05,995 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-11-19 07:35:05,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-19 07:35:05,996 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:35:05,996 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-19 07:35:06,004 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cde4f2b-fd75-4db5-b270-01d01937faab/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-19 07:35:06,210 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cde4f2b-fd75-4db5-b270-01d01937faab/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)] Forceful destruction successful, exit code 0 [2022-11-19 07:35:06,405 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cde4f2b-fd75-4db5-b270-01d01937faab/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2022-11-19 07:35:06,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cde4f2b-fd75-4db5-b270-01d01937faab/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cde4f2b-fd75-4db5-b270-01d01937faab/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=3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cde4f2b-fd75-4db5-b270-01d01937faab/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt [2022-11-19 07:35:06,604 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:35:06,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:35:06,605 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-11-19 07:35:06,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:35:06,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [7726477] [2022-11-19 07:35:06,607 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-19 07:35:06,607 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 07:35:06,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cde4f2b-fd75-4db5-b270-01d01937faab/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:35:06,608 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cde4f2b-fd75-4db5-b270-01d01937faab/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 07:35:06,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cde4f2b-fd75-4db5-b270-01d01937faab/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 (6)] Waiting until timeout for monitored process [2022-11-19 07:35:06,764 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-19 07:35:06,764 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 07:35:06,772 INFO L263 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 118 conjunts are in the unsatisfiable core [2022-11-19 07:35:06,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:35:08,646 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:35:08,646 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:35:38,155 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:35:38,155 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:35:38,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [7726477] [2022-11-19 07:35:38,156 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [7726477] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:35:38,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1193922815] [2022-11-19 07:35:38,156 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-19 07:35:38,156 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 07:35:38,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cde4f2b-fd75-4db5-b270-01d01937faab/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 07:35:38,157 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cde4f2b-fd75-4db5-b270-01d01937faab/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 07:35:38,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cde4f2b-fd75-4db5-b270-01d01937faab/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2022-11-19 07:35:38,418 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-19 07:35:38,418 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 07:35:38,425 INFO L263 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 114 conjunts are in the unsatisfiable core [2022-11-19 07:35:38,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:35:39,797 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:35:39,798 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:35:52,638 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:35:52,639 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1193922815] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:35:52,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [954804926] [2022-11-19 07:35:52,639 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-19 07:35:52,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:35:52,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cde4f2b-fd75-4db5-b270-01d01937faab/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:35:52,640 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cde4f2b-fd75-4db5-b270-01d01937faab/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:35:52,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cde4f2b-fd75-4db5-b270-01d01937faab/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-19 07:35:52,781 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-19 07:35:52,781 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 07:35:52,785 INFO L263 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 120 conjunts are in the unsatisfiable core [2022-11-19 07:35:52,789 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:35:54,081 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:35:54,082 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:36:10,049 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:36:10,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [954804926] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:36:10,050 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 07:36:10,050 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7, 7, 7, 7] total 20 [2022-11-19 07:36:10,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240587171] [2022-11-19 07:36:10,051 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 07:36:10,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-19 07:36:10,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:36:10,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-19 07:36:10,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=319, Unknown=0, NotChecked=0, Total=380 [2022-11-19 07:36:10,055 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 20 states, 20 states have (on average 1.8) internal successors, (36), 20 states have internal predecessors, (36), 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 07:36:10,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:36:10,298 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2022-11-19 07:36:10,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-19 07:36:10,298 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 1.8) internal successors, (36), 20 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-19 07:36:10,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:36:10,299 INFO L225 Difference]: With dead ends: 19 [2022-11-19 07:36:10,299 INFO L226 Difference]: Without dead ends: 17 [2022-11-19 07:36:10,300 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 37 SyntacticMatches, 5 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 16.6s TimeCoverageRelationStatistics Valid=90, Invalid=416, Unknown=0, NotChecked=0, Total=506 [2022-11-19 07:36:10,301 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 11 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 37 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:36:10,301 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 33 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 13 Invalid, 0 Unknown, 37 Unchecked, 0.1s Time] [2022-11-19 07:36:10,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-19 07:36:10,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2022-11-19 07:36:10,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:36:10,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-11-19 07:36:10,306 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 11 [2022-11-19 07:36:10,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:36:10,306 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-11-19 07:36:10,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 1.8) internal successors, (36), 20 states have internal predecessors, (36), 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 07:36:10,307 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-11-19 07:36:10,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-19 07:36:10,307 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:36:10,308 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1] [2022-11-19 07:36:10,321 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cde4f2b-fd75-4db5-b270-01d01937faab/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 (6)] Forceful destruction successful, exit code 0 [2022-11-19 07:36:10,516 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cde4f2b-fd75-4db5-b270-01d01937faab/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-19 07:36:10,714 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cde4f2b-fd75-4db5-b270-01d01937faab/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2022-11-19 07:36:10,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cde4f2b-fd75-4db5-b270-01d01937faab/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=3,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cde4f2b-fd75-4db5-b270-01d01937faab/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cde4f2b-fd75-4db5-b270-01d01937faab/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt [2022-11-19 07:36:10,912 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:36:10,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:36:10,913 INFO L85 PathProgramCache]: Analyzing trace with hash 1580781475, now seen corresponding path program 3 times [2022-11-19 07:36:10,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:36:10,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1598078411] [2022-11-19 07:36:10,914 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 07:36:10,915 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 07:36:10,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cde4f2b-fd75-4db5-b270-01d01937faab/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:36:10,916 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cde4f2b-fd75-4db5-b270-01d01937faab/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 07:36:10,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cde4f2b-fd75-4db5-b270-01d01937faab/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 (9)] Waiting until timeout for monitored process [2022-11-19 07:36:11,089 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-19 07:36:11,089 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 07:36:11,097 INFO L263 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 143 conjunts are in the unsatisfiable core [2022-11-19 07:36:11,102 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:36:14,742 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-19 07:36:14,743 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:36:50,790 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-19 07:36:50,790 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:36:50,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1598078411] [2022-11-19 07:36:50,791 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1598078411] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:36:50,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1447571432] [2022-11-19 07:36:50,791 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 07:36:50,791 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 07:36:50,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cde4f2b-fd75-4db5-b270-01d01937faab/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 07:36:50,794 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cde4f2b-fd75-4db5-b270-01d01937faab/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 07:36:50,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cde4f2b-fd75-4db5-b270-01d01937faab/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2022-11-19 07:36:51,084 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-19 07:36:51,084 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 07:36:51,091 INFO L263 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 137 conjunts are in the unsatisfiable core [2022-11-19 07:36:51,095 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:36:55,543 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-19 07:36:55,543 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:37:18,464 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-19 07:37:18,464 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1447571432] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:37:18,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [249707538] [2022-11-19 07:37:18,464 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 07:37:18,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:37:18,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cde4f2b-fd75-4db5-b270-01d01937faab/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:37:18,471 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cde4f2b-fd75-4db5-b270-01d01937faab/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:37:18,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cde4f2b-fd75-4db5-b270-01d01937faab/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-19 07:37:18,634 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-19 07:37:18,634 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 07:37:18,640 INFO L263 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 143 conjunts are in the unsatisfiable core [2022-11-19 07:37:18,654 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:37:21,240 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-19 07:37:21,240 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:37:58,376 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-19 07:37:58,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [249707538] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:37:58,377 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 07:37:58,377 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 7, 7, 8, 8] total 27 [2022-11-19 07:37:58,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80872805] [2022-11-19 07:37:58,378 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 07:37:58,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-11-19 07:37:58,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:37:58,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-11-19 07:37:58,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=566, Unknown=0, NotChecked=0, Total=702 [2022-11-19 07:37:58,380 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 27 states, 27 states have (on average 1.6666666666666667) internal successors, (45), 27 states have internal predecessors, (45), 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 07:37:59,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:37:59,115 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2022-11-19 07:37:59,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-19 07:37:59,115 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 1.6666666666666667) internal successors, (45), 27 states have internal predecessors, (45), 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 14 [2022-11-19 07:37:59,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:37:59,115 INFO L225 Difference]: With dead ends: 15 [2022-11-19 07:37:59,115 INFO L226 Difference]: Without dead ends: 0 [2022-11-19 07:37:59,116 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 51 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 279 ImplicationChecksByTransitivity, 27.4s TimeCoverageRelationStatistics Valid=207, Invalid=785, Unknown=0, NotChecked=0, Total=992 [2022-11-19 07:37:59,119 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 19 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:37:59,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 13 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 19 Unchecked, 0.0s Time] [2022-11-19 07:37:59,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-19 07:37:59,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-19 07:37:59,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:37:59,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-19 07:37:59,121 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2022-11-19 07:37:59,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:37:59,121 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-19 07:37:59,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 1.6666666666666667) internal successors, (45), 27 states have internal predecessors, (45), 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 07:37:59,122 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-19 07:37:59,122 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-19 07:37:59,124 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-19 07:37:59,137 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cde4f2b-fd75-4db5-b270-01d01937faab/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 (9)] Forceful destruction successful, exit code 0 [2022-11-19 07:37:59,330 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cde4f2b-fd75-4db5-b270-01d01937faab/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-19 07:37:59,528 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cde4f2b-fd75-4db5-b270-01d01937faab/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2022-11-19 07:37:59,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cde4f2b-fd75-4db5-b270-01d01937faab/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=3,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cde4f2b-fd75-4db5-b270-01d01937faab/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cde4f2b-fd75-4db5-b270-01d01937faab/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt [2022-11-19 07:37:59,727 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-19 07:38:00,185 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-19 07:38:00,187 INFO L895 garLoopResultBuilder]: At program point L62-2(lines 62 190) the Hoare annotation is: (let ((.cse1 (not (= |ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv0 32)))) (.cse12 (= ((_ extract 7 0) (bvand (_ bv1 32) ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_1~0#1|))) |ULTIMATE.start_main_~state_18~0#1|)) (.cse0 (= (_ bv1 8) |ULTIMATE.start_main_~mask_SORT_1~0#1|)) (.cse2 (= (_ bv1 8) |ULTIMATE.start_main_~var_39~0#1|)) (.cse3 (= (_ bv4 8) |ULTIMATE.start_main_~var_23~0#1|)) (.cse4 (= (_ bv7 8) |ULTIMATE.start_main_~mask_SORT_5~0#1|)) (.cse11 (= |ULTIMATE.start_main_~var_39~0#1| |ULTIMATE.start_main_~state_12~0#1|)) (.cse17 (= (_ bv0 8) |ULTIMATE.start_main_~state_18~0#1|)) (.cse13 (= |ULTIMATE.start_main_~mask_SORT_26~0#1| (_ bv3 8))) (.cse14 (= |ULTIMATE.start_main_~var_15~0#1| (_ bv0 8))) (.cse15 (= |ULTIMATE.start_main_~var_21~0#1| (_ bv5 8))) (.cse16 (= |ULTIMATE.start_main_~var_11~0#1| (_ bv0 8)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (let ((.cse6 ((_ zero_extend 24) |ULTIMATE.start_main_~var_21~0#1|)) (.cse7 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_5~0#1|))) (or (and (exists ((|ULTIMATE.start_main_~var_31_arg_1~0#1| (_ BitVec 8))) (let ((.cse5 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse7 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |ULTIMATE.start_main_~var_31_arg_1~0#1|)))))))) (and (= .cse5 .cse6) (= ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) .cse5))))) |ULTIMATE.start_main_~state_29~0#1|)))) (exists ((|ULTIMATE.start_main_~var_20_arg_2~0#1| (_ BitVec 8))) (let ((.cse8 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse7 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |ULTIMATE.start_main_~var_20_arg_2~0#1|)))))))) (and (= ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) .cse8))))) |ULTIMATE.start_main_~state_16~0#1|) (= ((_ zero_extend 24) |ULTIMATE.start_main_~var_23~0#1|) .cse8))))) (and (exists ((|ULTIMATE.start_main_~var_31_arg_1~0#1| (_ BitVec 8))) (let ((.cse9 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse7 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |ULTIMATE.start_main_~var_31_arg_1~0#1|)))))))) (and (= ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) .cse9))))) |ULTIMATE.start_main_~state_29~0#1|) (not (= .cse9 .cse6))))) (exists ((|ULTIMATE.start_main_~var_20_arg_2~0#1| (_ BitVec 8))) (let ((.cse10 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse7 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |ULTIMATE.start_main_~var_20_arg_2~0#1|)))))))) (and (not (= .cse6 .cse10)) (= ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) .cse10))))) |ULTIMATE.start_main_~state_16~0#1|))))))) .cse11 .cse12 .cse13 .cse14 .cse15 .cse16) (and .cse0 (= (_ bv0 8) |ULTIMATE.start_main_~state_16~0#1|) .cse2 .cse3 .cse4 (= |ULTIMATE.start_main_~var_11~0#1| |ULTIMATE.start_main_~state_12~0#1|) .cse17 .cse13 .cse14 .cse15 .cse16) (and .cse0 .cse1 .cse2 .cse3 (exists ((|ULTIMATE.start_main_~var_48_arg_1~0#1| (_ BitVec 8))) (let ((.cse18 ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |ULTIMATE.start_main_~var_48_arg_1~0#1|)))))))))))) (and (= .cse18 |ULTIMATE.start_main_~state_29~0#1|) (= .cse18 |ULTIMATE.start_main_~state_16~0#1|)))) .cse4 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16) (and .cse0 (= |ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)) .cse2 .cse3 .cse4 .cse11 .cse17 .cse13 .cse14 .cse15 .cse16))) [2022-11-19 07:38:00,187 INFO L899 garLoopResultBuilder]: For program point L62-3(lines 62 190) no Hoare annotation was computed. [2022-11-19 07:38:00,187 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-19 07:38:00,188 INFO L895 garLoopResultBuilder]: At program point L191(lines 22 192) the Hoare annotation is: false [2022-11-19 07:38:00,188 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-19 07:38:00,188 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-19 07:38:00,188 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 20) no Hoare annotation was computed. [2022-11-19 07:38:00,188 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2022-11-19 07:38:00,188 INFO L899 garLoopResultBuilder]: For program point L20-1(line 20) no Hoare annotation was computed. [2022-11-19 07:38:00,188 INFO L899 garLoopResultBuilder]: For program point L20-3(line 20) no Hoare annotation was computed. [2022-11-19 07:38:00,192 INFO L444 BasicCegarLoop]: Path program histogram: [3, 1] [2022-11-19 07:38:00,194 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 07:38:00,218 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_31_arg_1~0#1,QUANTIFIED] [2022-11-19 07:38:00,219 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_31_arg_1~0#1,QUANTIFIED] [2022-11-19 07:38:00,220 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_20_arg_2~0#1,QUANTIFIED] [2022-11-19 07:38:00,220 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_20_arg_2~0#1,QUANTIFIED] [2022-11-19 07:38:00,220 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_31_arg_1~0#1,QUANTIFIED] [2022-11-19 07:38:00,220 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_31_arg_1~0#1,QUANTIFIED] [2022-11-19 07:38:00,221 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_20_arg_2~0#1,QUANTIFIED] [2022-11-19 07:38:00,221 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_20_arg_2~0#1,QUANTIFIED] [2022-11-19 07:38:00,227 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_48_arg_1~0#1,QUANTIFIED] [2022-11-19 07:38:00,227 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_48_arg_1~0#1,QUANTIFIED] [2022-11-19 07:38:00,235 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_31_arg_1~0#1,QUANTIFIED] [2022-11-19 07:38:00,238 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_31_arg_1~0#1,QUANTIFIED] [2022-11-19 07:38:00,238 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_20_arg_2~0#1,QUANTIFIED] [2022-11-19 07:38:00,238 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_20_arg_2~0#1,QUANTIFIED] [2022-11-19 07:38:00,239 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_31_arg_1~0#1,QUANTIFIED] [2022-11-19 07:38:00,239 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_31_arg_1~0#1,QUANTIFIED] [2022-11-19 07:38:00,239 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_20_arg_2~0#1,QUANTIFIED] [2022-11-19 07:38:00,239 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_20_arg_2~0#1,QUANTIFIED] [2022-11-19 07:38:00,241 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_48_arg_1~0#1,QUANTIFIED] [2022-11-19 07:38:00,241 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_48_arg_1~0#1,QUANTIFIED] [2022-11-19 07:38:00,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:38:00 BoogieIcfgContainer [2022-11-19 07:38:00,256 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 07:38:00,257 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 07:38:00,257 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 07:38:00,257 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 07:38:00,258 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:34:55" (3/4) ... [2022-11-19 07:38:00,261 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-19 07:38:00,276 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-19 07:38:00,276 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-19 07:38:00,277 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-19 07:38:00,305 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((1bv8 == mask_SORT_1 && !(cond == 0bv32)) && 1bv8 == var_39) && 4bv8 == var_23) && 7bv8 == mask_SORT_5) && (((\exists ULTIMATE.start_main_~var_31_arg_1~0#1 : bv8 :: ~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(mask_SORT_5), ~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_31_arg_1~0#1)[7:0]))[7:0]) == ~zero_extendFrom8To32(var_21) && ~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(mask_SORT_5), ~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_31_arg_1~0#1)[7:0]))[7:0])[7:0])[7:0])[7:0] == state_29) && (\exists ULTIMATE.start_main_~var_20_arg_2~0#1 : bv8 :: ~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(mask_SORT_5), ~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_20_arg_2~0#1)[7:0]))[7:0])[7:0])[7:0])[7:0] == state_16 && ~zero_extendFrom8To32(var_23) == ~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(mask_SORT_5), ~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_20_arg_2~0#1)[7:0]))[7:0]))) || ((\exists ULTIMATE.start_main_~var_31_arg_1~0#1 : bv8 :: ~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(mask_SORT_5), ~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_31_arg_1~0#1)[7:0]))[7:0])[7:0])[7:0])[7:0] == state_29 && !(~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(mask_SORT_5), ~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_31_arg_1~0#1)[7:0]))[7:0]) == ~zero_extendFrom8To32(var_21))) && (\exists ULTIMATE.start_main_~var_20_arg_2~0#1 : bv8 :: !(~zero_extendFrom8To32(var_21) == ~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(mask_SORT_5), ~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_20_arg_2~0#1)[7:0]))[7:0])) && ~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(mask_SORT_5), ~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_20_arg_2~0#1)[7:0]))[7:0])[7:0])[7:0])[7:0] == state_16)))) && var_39 == state_12) && ~bvand32(1bv32, ~zero_extendFrom8To32(mask_SORT_1))[7:0] == state_18) && mask_SORT_26 == 3bv8) && var_15 == 0bv8) && var_21 == 5bv8) && var_11 == 0bv8) || ((((((((((1bv8 == mask_SORT_1 && 0bv8 == state_16) && 1bv8 == var_39) && 4bv8 == var_23) && 7bv8 == mask_SORT_5) && var_11 == state_12) && 0bv8 == state_18) && mask_SORT_26 == 3bv8) && var_15 == 0bv8) && var_21 == 5bv8) && var_11 == 0bv8)) || (((((((((((1bv8 == mask_SORT_1 && !(cond == 0bv32)) && 1bv8 == var_39) && 4bv8 == var_23) && (\exists ULTIMATE.start_main_~var_48_arg_1~0#1 : bv8 :: ~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_48_arg_1~0#1)[7:0])[7:0])[7:0])[7:0])[7:0] == state_29 && ~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_48_arg_1~0#1)[7:0])[7:0])[7:0])[7:0])[7:0] == state_16)) && 7bv8 == mask_SORT_5) && var_39 == state_12) && ~bvand32(1bv32, ~zero_extendFrom8To32(mask_SORT_1))[7:0] == state_18) && mask_SORT_26 == 3bv8) && var_15 == 0bv8) && var_21 == 5bv8) && var_11 == 0bv8)) || ((((((((((1bv8 == mask_SORT_1 && cond == 1bv32) && 1bv8 == var_39) && 4bv8 == var_23) && 7bv8 == mask_SORT_5) && var_39 == state_12) && 0bv8 == state_18) && mask_SORT_26 == 3bv8) && var_15 == 0bv8) && var_21 == 5bv8) && var_11 == 0bv8) [2022-11-19 07:38:00,341 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cde4f2b-fd75-4db5-b270-01d01937faab/bin/utaipan-I9t0OCRTmS/witness.graphml [2022-11-19 07:38:00,341 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 07:38:00,342 INFO L158 Benchmark]: Toolchain (without parser) took 185946.46ms. Allocated memory was 81.8MB in the beginning and 362.8MB in the end (delta: 281.0MB). Free memory was 45.8MB in the beginning and 233.3MB in the end (delta: -187.6MB). Peak memory consumption was 95.5MB. Max. memory is 16.1GB. [2022-11-19 07:38:00,342 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 81.8MB. Free memory is still 62.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:38:00,343 INFO L158 Benchmark]: CACSL2BoogieTranslator took 374.17ms. Allocated memory is still 81.8MB. Free memory was 66.5MB in the beginning and 62.7MB in the end (delta: 3.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-19 07:38:00,343 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.42ms. Allocated memory is still 81.8MB. Free memory was 62.7MB in the beginning and 60.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:38:00,343 INFO L158 Benchmark]: Boogie Preprocessor took 30.52ms. Allocated memory is still 81.8MB. Free memory was 60.3MB in the beginning and 58.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:38:00,344 INFO L158 Benchmark]: RCFGBuilder took 588.74ms. Allocated memory is still 81.8MB. Free memory was 58.8MB in the beginning and 40.6MB in the end (delta: 18.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-19 07:38:00,345 INFO L158 Benchmark]: TraceAbstraction took 184785.09ms. Allocated memory was 81.8MB in the beginning and 362.8MB in the end (delta: 281.0MB). Free memory was 39.9MB in the beginning and 237.5MB in the end (delta: -197.6MB). Peak memory consumption was 84.4MB. Max. memory is 16.1GB. [2022-11-19 07:38:00,345 INFO L158 Benchmark]: Witness Printer took 84.55ms. Allocated memory is still 362.8MB. Free memory was 237.5MB in the beginning and 233.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-19 07:38:00,348 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 81.8MB. Free memory is still 62.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 374.17ms. Allocated memory is still 81.8MB. Free memory was 66.5MB in the beginning and 62.7MB in the end (delta: 3.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.42ms. Allocated memory is still 81.8MB. Free memory was 62.7MB in the beginning and 60.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.52ms. Allocated memory is still 81.8MB. Free memory was 60.3MB in the beginning and 58.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 588.74ms. Allocated memory is still 81.8MB. Free memory was 58.8MB in the beginning and 40.6MB in the end (delta: 18.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 184785.09ms. Allocated memory was 81.8MB in the beginning and 362.8MB in the end (delta: 281.0MB). Free memory was 39.9MB in the beginning and 237.5MB in the end (delta: -197.6MB). Peak memory consumption was 84.4MB. Max. memory is 16.1GB. * Witness Printer took 84.55ms. Allocated memory is still 362.8MB. Free memory was 237.5MB in the beginning and 233.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_31_arg_1~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_31_arg_1~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_20_arg_2~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_20_arg_2~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_31_arg_1~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_31_arg_1~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_20_arg_2~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_20_arg_2~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_48_arg_1~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_48_arg_1~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_31_arg_1~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_31_arg_1~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_20_arg_2~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_20_arg_2~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_31_arg_1~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_31_arg_1~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_20_arg_2~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_20_arg_2~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_48_arg_1~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_48_arg_1~0#1,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 20]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 184.6s, OverallIterations: 4, TraceHistogramMax: 4, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 32 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 32 mSDsluCounter, 80 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 66 IncrementalHoareTripleChecker+Unchecked, 65 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 36 IncrementalHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 15 mSDtfsCounter, 36 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 196 GetRequests, 115 SyntacticMatches, 12 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 494 ImplicationChecksByTransitivity, 46.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=3, InterpolantAutomatonStates: 31, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 6 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 6 NumberOfFragments, 301 HoareAnnotationTreeSize, 2 FomulaSimplifications, 348 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 41 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 178.8s InterpolantComputationTime, 104 NumberOfCodeBlocks, 95 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 184 ConstructedInterpolants, 81 QuantifiedInterpolants, 36513 SizeOfPredicates, 1081 NumberOfNonLiveVariables, 2480 ConjunctsInSsa, 969 ConjunctsInUnsatCore, 19 InterpolantComputations, 1 PerfectInterpolantSequences, 38/144 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 62]: Loop Invariant [2022-11-19 07:38:00,379 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_31_arg_1~0#1,QUANTIFIED] [2022-11-19 07:38:00,379 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_31_arg_1~0#1,QUANTIFIED] [2022-11-19 07:38:00,380 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_20_arg_2~0#1,QUANTIFIED] [2022-11-19 07:38:00,380 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_20_arg_2~0#1,QUANTIFIED] [2022-11-19 07:38:00,380 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_31_arg_1~0#1,QUANTIFIED] [2022-11-19 07:38:00,380 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_31_arg_1~0#1,QUANTIFIED] [2022-11-19 07:38:00,381 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_20_arg_2~0#1,QUANTIFIED] [2022-11-19 07:38:00,381 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_20_arg_2~0#1,QUANTIFIED] [2022-11-19 07:38:00,381 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_48_arg_1~0#1,QUANTIFIED] [2022-11-19 07:38:00,382 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_48_arg_1~0#1,QUANTIFIED] [2022-11-19 07:38:00,384 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_31_arg_1~0#1,QUANTIFIED] [2022-11-19 07:38:00,387 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_31_arg_1~0#1,QUANTIFIED] [2022-11-19 07:38:00,388 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_20_arg_2~0#1,QUANTIFIED] [2022-11-19 07:38:00,388 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_20_arg_2~0#1,QUANTIFIED] [2022-11-19 07:38:00,388 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_31_arg_1~0#1,QUANTIFIED] [2022-11-19 07:38:00,388 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_31_arg_1~0#1,QUANTIFIED] [2022-11-19 07:38:00,388 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_20_arg_2~0#1,QUANTIFIED] [2022-11-19 07:38:00,389 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_20_arg_2~0#1,QUANTIFIED] [2022-11-19 07:38:00,389 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_48_arg_1~0#1,QUANTIFIED] [2022-11-19 07:38:00,389 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_48_arg_1~0#1,QUANTIFIED] Derived loop invariant: (((((((((((((1bv8 == mask_SORT_1 && !(cond == 0bv32)) && 1bv8 == var_39) && 4bv8 == var_23) && 7bv8 == mask_SORT_5) && (((\exists ULTIMATE.start_main_~var_31_arg_1~0#1 : bv8 :: ~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(mask_SORT_5), ~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_31_arg_1~0#1)[7:0]))[7:0]) == ~zero_extendFrom8To32(var_21) && ~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(mask_SORT_5), ~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_31_arg_1~0#1)[7:0]))[7:0])[7:0])[7:0])[7:0] == state_29) && (\exists ULTIMATE.start_main_~var_20_arg_2~0#1 : bv8 :: ~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(mask_SORT_5), ~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_20_arg_2~0#1)[7:0]))[7:0])[7:0])[7:0])[7:0] == state_16 && ~zero_extendFrom8To32(var_23) == ~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(mask_SORT_5), ~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_20_arg_2~0#1)[7:0]))[7:0]))) || ((\exists ULTIMATE.start_main_~var_31_arg_1~0#1 : bv8 :: ~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(mask_SORT_5), ~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_31_arg_1~0#1)[7:0]))[7:0])[7:0])[7:0])[7:0] == state_29 && !(~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(mask_SORT_5), ~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_31_arg_1~0#1)[7:0]))[7:0]) == ~zero_extendFrom8To32(var_21))) && (\exists ULTIMATE.start_main_~var_20_arg_2~0#1 : bv8 :: !(~zero_extendFrom8To32(var_21) == ~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(mask_SORT_5), ~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_20_arg_2~0#1)[7:0]))[7:0])) && ~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(mask_SORT_5), ~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_20_arg_2~0#1)[7:0]))[7:0])[7:0])[7:0])[7:0] == state_16)))) && var_39 == state_12) && ~bvand32(1bv32, ~zero_extendFrom8To32(mask_SORT_1))[7:0] == state_18) && mask_SORT_26 == 3bv8) && var_15 == 0bv8) && var_21 == 5bv8) && var_11 == 0bv8) || ((((((((((1bv8 == mask_SORT_1 && 0bv8 == state_16) && 1bv8 == var_39) && 4bv8 == var_23) && 7bv8 == mask_SORT_5) && var_11 == state_12) && 0bv8 == state_18) && mask_SORT_26 == 3bv8) && var_15 == 0bv8) && var_21 == 5bv8) && var_11 == 0bv8)) || (((((((((((1bv8 == mask_SORT_1 && !(cond == 0bv32)) && 1bv8 == var_39) && 4bv8 == var_23) && (\exists ULTIMATE.start_main_~var_48_arg_1~0#1 : bv8 :: ~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_48_arg_1~0#1)[7:0])[7:0])[7:0])[7:0])[7:0] == state_29 && ~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_48_arg_1~0#1)[7:0])[7:0])[7:0])[7:0])[7:0] == state_16)) && 7bv8 == mask_SORT_5) && var_39 == state_12) && ~bvand32(1bv32, ~zero_extendFrom8To32(mask_SORT_1))[7:0] == state_18) && mask_SORT_26 == 3bv8) && var_15 == 0bv8) && var_21 == 5bv8) && var_11 == 0bv8)) || ((((((((((1bv8 == mask_SORT_1 && cond == 1bv32) && 1bv8 == var_39) && 4bv8 == var_23) && 7bv8 == mask_SORT_5) && var_39 == state_12) && 0bv8 == state_18) && mask_SORT_26 == 3bv8) && var_15 == 0bv8) && var_21 == 5bv8) && var_11 == 0bv8) RESULT: Ultimate proved your program to be correct! [2022-11-19 07:38:00,449 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cde4f2b-fd75-4db5-b270-01d01937faab/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 Writing output log to file Ultimate.log Result: TRUE