./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b08.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2ffa91-5d91-4b9c-9d43-f72f9bd36cec/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2ffa91-5d91-4b9c-9d43-f72f9bd36cec/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2ffa91-5d91-4b9c-9d43-f72f9bd36cec/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2ffa91-5d91-4b9c-9d43-f72f9bd36cec/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b08.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2ffa91-5d91-4b9c-9d43-f72f9bd36cec/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2ffa91-5d91-4b9c-9d43-f72f9bd36cec/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 71c9ad4d22d8803e8ce68978dcece5a0c38af93fd6faccf6f5517fe451659fc5 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 14:39:48,727 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 14:39:48,729 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 14:39:48,747 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 14:39:48,748 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 14:39:48,749 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 14:39:48,750 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 14:39:48,751 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 14:39:48,753 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 14:39:48,754 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 14:39:48,755 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 14:39:48,756 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 14:39:48,756 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 14:39:48,757 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 14:39:48,758 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 14:39:48,759 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 14:39:48,760 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 14:39:48,761 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 14:39:48,762 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 14:39:48,764 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 14:39:48,766 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 14:39:48,767 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 14:39:48,768 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 14:39:48,769 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 14:39:48,772 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 14:39:48,773 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 14:39:48,773 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 14:39:48,774 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 14:39:48,774 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 14:39:48,775 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 14:39:48,775 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 14:39:48,776 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 14:39:48,777 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 14:39:48,777 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 14:39:48,778 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 14:39:48,778 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 14:39:48,779 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 14:39:48,779 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 14:39:48,779 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 14:39:48,780 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 14:39:48,781 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 14:39:48,781 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2ffa91-5d91-4b9c-9d43-f72f9bd36cec/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 14:39:48,800 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 14:39:48,801 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 14:39:48,801 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 14:39:48,801 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 14:39:48,802 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 14:39:48,802 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 14:39:48,802 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 14:39:48,802 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 14:39:48,802 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 14:39:48,802 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 14:39:48,803 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 14:39:48,821 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 14:39:48,822 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 14:39:48,822 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 14:39:48,822 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 14:39:48,822 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 14:39:48,822 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 14:39:48,823 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 14:39:48,823 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 14:39:48,824 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 14:39:48,824 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 14:39:48,824 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 14:39:48,824 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 14:39:48,824 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 14:39:48,825 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 14:39:48,825 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 14:39:48,825 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 14:39:48,825 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 14:39:48,825 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 14:39:48,826 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:39:48,826 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 14:39:48,826 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 14:39:48,826 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 14:39:48,826 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 14:39:48,827 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 14:39:48,827 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 14:39:48,827 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 14:39:48,827 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 14:39:48,827 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_aa2ffa91-5d91-4b9c-9d43-f72f9bd36cec/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2ffa91-5d91-4b9c-9d43-f72f9bd36cec/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71c9ad4d22d8803e8ce68978dcece5a0c38af93fd6faccf6f5517fe451659fc5 [2022-12-14 14:39:49,033 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 14:39:49,054 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 14:39:49,056 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 14:39:49,057 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 14:39:49,058 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 14:39:49,059 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2ffa91-5d91-4b9c-9d43-f72f9bd36cec/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b08.c [2022-12-14 14:39:51,653 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 14:39:51,804 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 14:39:51,805 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2ffa91-5d91-4b9c-9d43-f72f9bd36cec/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b08.c [2022-12-14 14:39:51,813 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2ffa91-5d91-4b9c-9d43-f72f9bd36cec/bin/utaipan-gh47qXpMRh/data/35ee6fd70/c5e6f5f30b5343688828f95438add74e/FLAG6a0bda52e [2022-12-14 14:39:51,826 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2ffa91-5d91-4b9c-9d43-f72f9bd36cec/bin/utaipan-gh47qXpMRh/data/35ee6fd70/c5e6f5f30b5343688828f95438add74e [2022-12-14 14:39:51,828 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 14:39:51,829 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 14:39:51,830 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 14:39:51,830 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 14:39:51,833 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 14:39:51,833 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:39:51" (1/1) ... [2022-12-14 14:39:51,834 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7152fc8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:39:51, skipping insertion in model container [2022-12-14 14:39:51,834 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:39:51" (1/1) ... [2022-12-14 14:39:51,840 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 14:39:51,864 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 14:39:51,976 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2ffa91-5d91-4b9c-9d43-f72f9bd36cec/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b08.c[1107,1120] [2022-12-14 14:39:52,050 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:39:52,055 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 14:39:52,064 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2ffa91-5d91-4b9c-9d43-f72f9bd36cec/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b08.c[1107,1120] [2022-12-14 14:39:52,095 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:39:52,104 INFO L208 MainTranslator]: Completed translation [2022-12-14 14:39:52,105 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:39:52 WrapperNode [2022-12-14 14:39:52,105 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 14:39:52,105 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 14:39:52,106 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 14:39:52,106 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 14:39:52,111 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:39:52" (1/1) ... [2022-12-14 14:39:52,118 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:39:52" (1/1) ... [2022-12-14 14:39:52,139 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 330 [2022-12-14 14:39:52,139 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 14:39:52,139 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 14:39:52,140 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 14:39:52,140 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 14:39:52,147 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:39:52" (1/1) ... [2022-12-14 14:39:52,147 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:39:52" (1/1) ... [2022-12-14 14:39:52,150 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:39:52" (1/1) ... [2022-12-14 14:39:52,150 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:39:52" (1/1) ... [2022-12-14 14:39:52,155 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:39:52" (1/1) ... [2022-12-14 14:39:52,158 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:39:52" (1/1) ... [2022-12-14 14:39:52,159 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:39:52" (1/1) ... [2022-12-14 14:39:52,161 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:39:52" (1/1) ... [2022-12-14 14:39:52,164 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 14:39:52,164 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 14:39:52,164 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 14:39:52,164 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 14:39:52,165 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:39:52" (1/1) ... [2022-12-14 14:39:52,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:39:52,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2ffa91-5d91-4b9c-9d43-f72f9bd36cec/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:39:52,190 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2ffa91-5d91-4b9c-9d43-f72f9bd36cec/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 14:39:52,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2ffa91-5d91-4b9c-9d43-f72f9bd36cec/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 14:39:52,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 14:39:52,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 14:39:52,320 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 14:39:52,322 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 14:39:52,723 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 14:39:52,737 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 14:39:52,737 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 14:39:52,739 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:39:52 BoogieIcfgContainer [2022-12-14 14:39:52,739 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 14:39:52,741 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 14:39:52,741 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 14:39:52,743 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 14:39:52,743 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 02:39:51" (1/3) ... [2022-12-14 14:39:52,744 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b97d5ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:39:52, skipping insertion in model container [2022-12-14 14:39:52,744 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:39:52" (2/3) ... [2022-12-14 14:39:52,744 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b97d5ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:39:52, skipping insertion in model container [2022-12-14 14:39:52,744 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:39:52" (3/3) ... [2022-12-14 14:39:52,745 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_b08.c [2022-12-14 14:39:52,759 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 14:39:52,760 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 14:39:52,793 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 14:39:52,797 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;@39abcb7e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 14:39:52,798 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 14:39:52,801 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:39:52,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 14:39:52,805 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:39:52,805 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 14:39:52,806 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:39:52,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:39:52,809 INFO L85 PathProgramCache]: Analyzing trace with hash 1827279, now seen corresponding path program 1 times [2022-12-14 14:39:52,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:39:52,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396016753] [2022-12-14 14:39:52,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:39:52,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:39:53,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 14:39:53,151 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 14:39:53,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 14:39:53,319 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 14:39:53,321 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 14:39:53,322 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-14 14:39:53,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 14:39:53,327 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-14 14:39:53,331 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 14:39:53,351 WARN L321 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-12-14 14:39:53,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 02:39:53 BoogieIcfgContainer [2022-12-14 14:39:53,360 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 14:39:53,360 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 14:39:53,360 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 14:39:53,360 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 14:39:53,361 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:39:52" (3/4) ... [2022-12-14 14:39:53,363 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 14:39:53,364 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 14:39:53,365 INFO L158 Benchmark]: Toolchain (without parser) took 1535.38ms. Allocated memory was 119.5MB in the beginning and 182.5MB in the end (delta: 62.9MB). Free memory was 80.2MB in the beginning and 82.6MB in the end (delta: -2.4MB). Peak memory consumption was 61.3MB. Max. memory is 16.1GB. [2022-12-14 14:39:53,365 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 119.5MB. Free memory is still 90.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 14:39:53,365 INFO L158 Benchmark]: CACSL2BoogieTranslator took 274.89ms. Allocated memory is still 119.5MB. Free memory was 79.9MB in the beginning and 63.8MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-14 14:39:53,366 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.60ms. Allocated memory is still 119.5MB. Free memory was 63.8MB in the beginning and 60.6MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 14:39:53,366 INFO L158 Benchmark]: Boogie Preprocessor took 24.24ms. Allocated memory is still 119.5MB. Free memory was 60.6MB in the beginning and 58.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 14:39:53,367 INFO L158 Benchmark]: RCFGBuilder took 574.63ms. Allocated memory was 119.5MB in the beginning and 182.5MB in the end (delta: 62.9MB). Free memory was 58.5MB in the beginning and 102.7MB in the end (delta: -44.2MB). Peak memory consumption was 27.6MB. Max. memory is 16.1GB. [2022-12-14 14:39:53,367 INFO L158 Benchmark]: TraceAbstraction took 619.06ms. Allocated memory is still 182.5MB. Free memory was 101.8MB in the beginning and 83.6MB in the end (delta: 18.1MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. [2022-12-14 14:39:53,367 INFO L158 Benchmark]: Witness Printer took 3.51ms. Allocated memory is still 182.5MB. Free memory is still 83.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 14:39:53,370 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 119.5MB. Free memory is still 90.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 274.89ms. Allocated memory is still 119.5MB. Free memory was 79.9MB in the beginning and 63.8MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.60ms. Allocated memory is still 119.5MB. Free memory was 63.8MB in the beginning and 60.6MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.24ms. Allocated memory is still 119.5MB. Free memory was 60.6MB in the beginning and 58.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 574.63ms. Allocated memory was 119.5MB in the beginning and 182.5MB in the end (delta: 62.9MB). Free memory was 58.5MB in the beginning and 102.7MB in the end (delta: -44.2MB). Peak memory consumption was 27.6MB. Max. memory is 16.1GB. * TraceAbstraction took 619.06ms. Allocated memory is still 182.5MB. Free memory was 101.8MB in the beginning and 83.6MB in the end (delta: 18.1MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. * Witness Printer took 3.51ms. Allocated memory is still 182.5MB. Free memory is still 83.6MB. 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 bitwiseComplement at line 294, overapproximation of bitwiseAnd at line 103. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L28] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 8); [L29] const SORT_3 msb_SORT_3 = (SORT_3)1 << (8 - 1); [L31] const SORT_6 mask_SORT_6 = (SORT_6)-1 >> (sizeof(SORT_6) * 8 - 20); [L32] const SORT_6 msb_SORT_6 = (SORT_6)1 << (20 - 1); [L34] const SORT_9 mask_SORT_9 = (SORT_9)-1 >> (sizeof(SORT_9) * 8 - 3); [L35] const SORT_9 msb_SORT_9 = (SORT_9)1 << (3 - 1); [L37] const SORT_13 mask_SORT_13 = (SORT_13)-1 >> (sizeof(SORT_13) * 8 - 32); [L38] const SORT_13 msb_SORT_13 = (SORT_13)1 << (32 - 1); [L40] const SORT_90 mask_SORT_90 = (SORT_90)-1 >> (sizeof(SORT_90) * 8 - 4); [L41] const SORT_90 msb_SORT_90 = (SORT_90)1 << (4 - 1); [L43] const SORT_6 var_7 = 196596; [L44] const SORT_6 var_8 = 829275; [L45] const SORT_9 var_10 = 0; [L46] const SORT_13 var_15 = 6; [L47] const SORT_13 var_20 = 5; [L48] const SORT_13 var_25 = 4; [L49] const SORT_13 var_30 = 3; [L50] const SORT_13 var_35 = 2; [L51] const SORT_13 var_40 = 1; [L52] const SORT_13 var_45 = 0; [L53] const SORT_6 var_48 = 1047464; [L54] const SORT_6 var_60 = 1048430; [L55] const SORT_6 var_70 = 1046202; [L56] const SORT_6 var_78 = 692223; [L57] const SORT_6 var_84 = 236898; [L58] const SORT_6 var_88 = 522618; [L59] const SORT_1 var_96 = 1; [L60] const SORT_1 var_107 = 0; [L62] SORT_1 input_2; [L63] SORT_3 input_4; [L64] SORT_1 input_5; [L65] SORT_6 input_18; [L66] SORT_6 input_23; [L67] SORT_6 input_28; [L68] SORT_6 input_33; [L69] SORT_6 input_38; [L70] SORT_6 input_43; [L71] SORT_6 input_50; [L72] SORT_6 input_52; [L73] SORT_6 input_54; [L74] SORT_6 input_56; [L75] SORT_6 input_58; [L76] SORT_6 input_62; [L77] SORT_6 input_64; [L78] SORT_6 input_66; [L79] SORT_6 input_68; [L80] SORT_6 input_72; [L81] SORT_6 input_74; [L82] SORT_6 input_76; [L83] SORT_6 input_80; [L84] SORT_6 input_82; [L85] SORT_6 input_86; [L86] SORT_3 input_100; [L87] SORT_90 input_102; [L88] SORT_90 input_104; [L89] SORT_1 input_113; [L91] SORT_9 state_11 = __VERIFIER_nondet_uchar() & mask_SORT_9; [L92] SORT_1 state_108 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L94] SORT_9 init_12_arg_1 = var_10; [L95] state_11 = init_12_arg_1 [L96] SORT_1 init_109_arg_1 = var_107; [L97] state_108 = init_109_arg_1 VAL [init_109_arg_1=0, init_12_arg_1=0, mask_SORT_1=1, mask_SORT_13=4294967295, mask_SORT_3=255, mask_SORT_6=4294967295, mask_SORT_9=7, mask_SORT_90=15, msb_SORT_1=1, msb_SORT_13=2147483648, msb_SORT_3=128, msb_SORT_6=524288, msb_SORT_9=4, msb_SORT_90=8, state_108=0, state_11=0, var_10=0, var_107=0, var_15=6, var_20=5, var_25=4, var_30=3, var_35=2, var_40=1, var_45=0, var_48=1047464, var_60=1048430, var_7=196596, var_70=1046202, var_78=692223, var_8=829275, var_84=236898, var_88=522618, var_96=1] [L100] input_2 = __VERIFIER_nondet_uchar() [L101] input_4 = __VERIFIER_nondet_uchar() [L102] input_5 = __VERIFIER_nondet_uchar() [L103] input_5 = input_5 & mask_SORT_1 [L104] input_18 = __VERIFIER_nondet_uint() [L105] input_23 = __VERIFIER_nondet_uint() [L106] input_28 = __VERIFIER_nondet_uint() [L107] input_33 = __VERIFIER_nondet_uint() [L108] input_38 = __VERIFIER_nondet_uint() [L109] input_43 = __VERIFIER_nondet_uint() [L110] input_50 = __VERIFIER_nondet_uint() [L111] input_52 = __VERIFIER_nondet_uint() [L112] input_54 = __VERIFIER_nondet_uint() [L113] input_56 = __VERIFIER_nondet_uint() [L114] input_58 = __VERIFIER_nondet_uint() [L115] input_62 = __VERIFIER_nondet_uint() [L116] input_64 = __VERIFIER_nondet_uint() [L117] input_66 = __VERIFIER_nondet_uint() [L118] input_68 = __VERIFIER_nondet_uint() [L119] input_72 = __VERIFIER_nondet_uint() [L120] input_74 = __VERIFIER_nondet_uint() [L121] input_76 = __VERIFIER_nondet_uint() [L122] input_80 = __VERIFIER_nondet_uint() [L123] input_82 = __VERIFIER_nondet_uint() [L124] input_86 = __VERIFIER_nondet_uint() [L125] input_100 = __VERIFIER_nondet_uchar() [L126] input_102 = __VERIFIER_nondet_uchar() [L127] input_104 = __VERIFIER_nondet_uchar() [L128] input_113 = __VERIFIER_nondet_uchar() [L131] SORT_9 var_44_arg_0 = state_11; [L132] var_44_arg_0 = var_44_arg_0 & mask_SORT_9 [L133] SORT_13 var_44 = var_44_arg_0; [L134] SORT_13 var_46_arg_0 = var_44; [L135] SORT_13 var_46_arg_1 = var_45; [L136] SORT_1 var_46 = var_46_arg_0 == var_46_arg_1; [L137] SORT_9 var_39_arg_0 = state_11; [L138] var_39_arg_0 = var_39_arg_0 & mask_SORT_9 [L139] SORT_13 var_39 = var_39_arg_0; [L140] SORT_13 var_41_arg_0 = var_39; [L141] SORT_13 var_41_arg_1 = var_40; [L142] SORT_1 var_41 = var_41_arg_0 == var_41_arg_1; [L143] SORT_9 var_34_arg_0 = state_11; [L144] var_34_arg_0 = var_34_arg_0 & mask_SORT_9 [L145] SORT_13 var_34 = var_34_arg_0; [L146] SORT_13 var_36_arg_0 = var_34; [L147] SORT_13 var_36_arg_1 = var_35; [L148] SORT_1 var_36 = var_36_arg_0 == var_36_arg_1; [L149] SORT_9 var_29_arg_0 = state_11; [L150] var_29_arg_0 = var_29_arg_0 & mask_SORT_9 [L151] SORT_13 var_29 = var_29_arg_0; [L152] SORT_13 var_31_arg_0 = var_29; [L153] SORT_13 var_31_arg_1 = var_30; [L154] SORT_1 var_31 = var_31_arg_0 == var_31_arg_1; [L155] SORT_9 var_24_arg_0 = state_11; [L156] var_24_arg_0 = var_24_arg_0 & mask_SORT_9 [L157] SORT_13 var_24 = var_24_arg_0; [L158] SORT_13 var_26_arg_0 = var_24; [L159] SORT_13 var_26_arg_1 = var_25; [L160] SORT_1 var_26 = var_26_arg_0 == var_26_arg_1; [L161] SORT_9 var_19_arg_0 = state_11; [L162] var_19_arg_0 = var_19_arg_0 & mask_SORT_9 [L163] SORT_13 var_19 = var_19_arg_0; [L164] SORT_13 var_21_arg_0 = var_19; [L165] SORT_13 var_21_arg_1 = var_20; [L166] SORT_1 var_21 = var_21_arg_0 == var_21_arg_1; [L167] SORT_9 var_14_arg_0 = state_11; [L168] var_14_arg_0 = var_14_arg_0 & mask_SORT_9 [L169] SORT_13 var_14 = var_14_arg_0; [L170] SORT_13 var_16_arg_0 = var_14; [L171] SORT_13 var_16_arg_1 = var_15; [L172] SORT_1 var_16 = var_16_arg_0 == var_16_arg_1; [L173] SORT_1 var_17_arg_0 = var_16; [L174] SORT_6 var_17_arg_1 = var_8; [L175] SORT_6 var_17_arg_2 = var_7; [L176] SORT_6 var_17 = var_17_arg_0 ? var_17_arg_1 : var_17_arg_2; [L177] SORT_1 var_22_arg_0 = var_21; [L178] SORT_6 var_22_arg_1 = input_18; [L179] SORT_6 var_22_arg_2 = var_17; [L180] SORT_6 var_22 = var_22_arg_0 ? var_22_arg_1 : var_22_arg_2; [L181] SORT_1 var_27_arg_0 = var_26; [L182] SORT_6 var_27_arg_1 = input_23; [L183] SORT_6 var_27_arg_2 = var_22; [L184] SORT_6 var_27 = var_27_arg_0 ? var_27_arg_1 : var_27_arg_2; [L185] SORT_1 var_32_arg_0 = var_31; [L186] SORT_6 var_32_arg_1 = input_28; [L187] SORT_6 var_32_arg_2 = var_27; [L188] SORT_6 var_32 = var_32_arg_0 ? var_32_arg_1 : var_32_arg_2; [L189] SORT_1 var_37_arg_0 = var_36; [L190] SORT_6 var_37_arg_1 = input_33; [L191] SORT_6 var_37_arg_2 = var_32; [L192] SORT_6 var_37 = var_37_arg_0 ? var_37_arg_1 : var_37_arg_2; [L193] SORT_1 var_42_arg_0 = var_41; [L194] SORT_6 var_42_arg_1 = input_38; [L195] SORT_6 var_42_arg_2 = var_37; [L196] SORT_6 var_42 = var_42_arg_0 ? var_42_arg_1 : var_42_arg_2; [L197] SORT_1 var_47_arg_0 = var_46; [L198] SORT_6 var_47_arg_1 = input_43; [L199] SORT_6 var_47_arg_2 = var_42; [L200] SORT_6 var_47 = var_47_arg_0 ? var_47_arg_1 : var_47_arg_2; [L201] SORT_1 var_49_arg_0 = var_21; [L202] SORT_6 var_49_arg_1 = var_48; [L203] SORT_6 var_49_arg_2 = var_47; [L204] SORT_6 var_49 = var_49_arg_0 ? var_49_arg_1 : var_49_arg_2; [L205] SORT_1 var_51_arg_0 = var_26; [L206] SORT_6 var_51_arg_1 = input_50; [L207] SORT_6 var_51_arg_2 = var_49; [L208] SORT_6 var_51 = var_51_arg_0 ? var_51_arg_1 : var_51_arg_2; [L209] SORT_1 var_53_arg_0 = var_31; [L210] SORT_6 var_53_arg_1 = input_52; [L211] SORT_6 var_53_arg_2 = var_51; [L212] SORT_6 var_53 = var_53_arg_0 ? var_53_arg_1 : var_53_arg_2; [L213] SORT_1 var_55_arg_0 = var_36; [L214] SORT_6 var_55_arg_1 = input_54; [L215] SORT_6 var_55_arg_2 = var_53; [L216] SORT_6 var_55 = var_55_arg_0 ? var_55_arg_1 : var_55_arg_2; [L217] SORT_1 var_57_arg_0 = var_41; [L218] SORT_6 var_57_arg_1 = input_56; [L219] SORT_6 var_57_arg_2 = var_55; [L220] SORT_6 var_57 = var_57_arg_0 ? var_57_arg_1 : var_57_arg_2; [L221] SORT_1 var_59_arg_0 = var_46; [L222] SORT_6 var_59_arg_1 = input_58; [L223] SORT_6 var_59_arg_2 = var_57; [L224] SORT_6 var_59 = var_59_arg_0 ? var_59_arg_1 : var_59_arg_2; [L225] SORT_1 var_61_arg_0 = var_26; [L226] SORT_6 var_61_arg_1 = var_60; [L227] SORT_6 var_61_arg_2 = var_59; [L228] SORT_6 var_61 = var_61_arg_0 ? var_61_arg_1 : var_61_arg_2; [L229] SORT_1 var_63_arg_0 = var_31; [L230] SORT_6 var_63_arg_1 = input_62; [L231] SORT_6 var_63_arg_2 = var_61; [L232] SORT_6 var_63 = var_63_arg_0 ? var_63_arg_1 : var_63_arg_2; [L233] SORT_1 var_65_arg_0 = var_36; [L234] SORT_6 var_65_arg_1 = input_64; [L235] SORT_6 var_65_arg_2 = var_63; [L236] SORT_6 var_65 = var_65_arg_0 ? var_65_arg_1 : var_65_arg_2; [L237] SORT_1 var_67_arg_0 = var_41; [L238] SORT_6 var_67_arg_1 = input_66; [L239] SORT_6 var_67_arg_2 = var_65; [L240] SORT_6 var_67 = var_67_arg_0 ? var_67_arg_1 : var_67_arg_2; [L241] SORT_1 var_69_arg_0 = var_46; [L242] SORT_6 var_69_arg_1 = input_68; [L243] SORT_6 var_69_arg_2 = var_67; [L244] SORT_6 var_69 = var_69_arg_0 ? var_69_arg_1 : var_69_arg_2; [L245] SORT_1 var_71_arg_0 = var_31; [L246] SORT_6 var_71_arg_1 = var_70; [L247] SORT_6 var_71_arg_2 = var_69; [L248] SORT_6 var_71 = var_71_arg_0 ? var_71_arg_1 : var_71_arg_2; [L249] SORT_1 var_73_arg_0 = var_36; [L250] SORT_6 var_73_arg_1 = input_72; [L251] SORT_6 var_73_arg_2 = var_71; [L252] SORT_6 var_73 = var_73_arg_0 ? var_73_arg_1 : var_73_arg_2; [L253] SORT_1 var_75_arg_0 = var_41; [L254] SORT_6 var_75_arg_1 = input_74; [L255] SORT_6 var_75_arg_2 = var_73; [L256] SORT_6 var_75 = var_75_arg_0 ? var_75_arg_1 : var_75_arg_2; [L257] SORT_1 var_77_arg_0 = var_46; [L258] SORT_6 var_77_arg_1 = input_76; [L259] SORT_6 var_77_arg_2 = var_75; [L260] SORT_6 var_77 = var_77_arg_0 ? var_77_arg_1 : var_77_arg_2; [L261] SORT_1 var_79_arg_0 = var_36; [L262] SORT_6 var_79_arg_1 = var_78; [L263] SORT_6 var_79_arg_2 = var_77; [L264] SORT_6 var_79 = var_79_arg_0 ? var_79_arg_1 : var_79_arg_2; [L265] SORT_1 var_81_arg_0 = var_41; [L266] SORT_6 var_81_arg_1 = input_80; [L267] SORT_6 var_81_arg_2 = var_79; [L268] SORT_6 var_81 = var_81_arg_0 ? var_81_arg_1 : var_81_arg_2; [L269] SORT_1 var_83_arg_0 = var_46; [L270] SORT_6 var_83_arg_1 = input_82; [L271] SORT_6 var_83_arg_2 = var_81; [L272] SORT_6 var_83 = var_83_arg_0 ? var_83_arg_1 : var_83_arg_2; [L273] SORT_1 var_85_arg_0 = var_41; [L274] SORT_6 var_85_arg_1 = var_84; [L275] SORT_6 var_85_arg_2 = var_83; [L276] SORT_6 var_85 = var_85_arg_0 ? var_85_arg_1 : var_85_arg_2; [L277] SORT_1 var_87_arg_0 = var_46; [L278] SORT_6 var_87_arg_1 = input_86; [L279] SORT_6 var_87_arg_2 = var_85; [L280] SORT_6 var_87 = var_87_arg_0 ? var_87_arg_1 : var_87_arg_2; [L281] SORT_1 var_89_arg_0 = var_46; [L282] SORT_6 var_89_arg_1 = var_88; [L283] SORT_6 var_89_arg_2 = var_87; [L284] SORT_6 var_89 = var_89_arg_0 ? var_89_arg_1 : var_89_arg_2; [L285] SORT_6 var_91_arg_0 = var_89; [L286] SORT_90 var_91 = var_91_arg_0 >> 0; [L287] SORT_90 var_92_arg_0 = var_91; [L288] var_92_arg_0 = var_92_arg_0 & mask_SORT_90 [L289] SORT_13 var_92 = var_92_arg_0; [L290] SORT_13 var_93_arg_0 = var_92; [L291] SORT_13 var_93_arg_1 = var_45; [L292] SORT_1 var_93 = var_93_arg_0 != var_93_arg_1; [L293] SORT_1 var_97_arg_0 = var_93; [L294] SORT_1 var_97 = ~var_97_arg_0; [L295] SORT_1 var_98_arg_0 = var_96; [L296] SORT_1 var_98_arg_1 = var_97; [L297] SORT_1 var_98 = var_98_arg_0 & var_98_arg_1; [L298] var_98 = var_98 & mask_SORT_1 [L299] SORT_1 bad_99_arg_0 = var_98; [L300] CALL __VERIFIER_assert(!(bad_99_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: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s 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 [2022-12-14 14:39:53,389 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2ffa91-5d91-4b9c-9d43-f72f9bd36cec/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2ffa91-5d91-4b9c-9d43-f72f9bd36cec/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2ffa91-5d91-4b9c-9d43-f72f9bd36cec/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2ffa91-5d91-4b9c-9d43-f72f9bd36cec/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2ffa91-5d91-4b9c-9d43-f72f9bd36cec/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b08.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2ffa91-5d91-4b9c-9d43-f72f9bd36cec/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2ffa91-5d91-4b9c-9d43-f72f9bd36cec/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 71c9ad4d22d8803e8ce68978dcece5a0c38af93fd6faccf6f5517fe451659fc5 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 14:39:55,066 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 14:39:55,068 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 14:39:55,080 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 14:39:55,081 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 14:39:55,081 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 14:39:55,082 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 14:39:55,083 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 14:39:55,084 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 14:39:55,085 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 14:39:55,085 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 14:39:55,086 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 14:39:55,087 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 14:39:55,087 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 14:39:55,088 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 14:39:55,089 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 14:39:55,089 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 14:39:55,094 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 14:39:55,096 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 14:39:55,099 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 14:39:55,102 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 14:39:55,103 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 14:39:55,104 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 14:39:55,104 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 14:39:55,106 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 14:39:55,106 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 14:39:55,106 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 14:39:55,107 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 14:39:55,107 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 14:39:55,108 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 14:39:55,108 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 14:39:55,109 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 14:39:55,109 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 14:39:55,110 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 14:39:55,110 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 14:39:55,110 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 14:39:55,111 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 14:39:55,111 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 14:39:55,111 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 14:39:55,112 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 14:39:55,112 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 14:39:55,113 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2ffa91-5d91-4b9c-9d43-f72f9bd36cec/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-12-14 14:39:55,129 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 14:39:55,129 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 14:39:55,129 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 14:39:55,129 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 14:39:55,130 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 14:39:55,130 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 14:39:55,130 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 14:39:55,130 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 14:39:55,130 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 14:39:55,130 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 14:39:55,130 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 14:39:55,131 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 14:39:55,131 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 14:39:55,131 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 14:39:55,131 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 14:39:55,131 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 14:39:55,131 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 14:39:55,132 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 14:39:55,132 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 14:39:55,132 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 14:39:55,132 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 14:39:55,132 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 14:39:55,132 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 14:39:55,132 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 14:39:55,132 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 14:39:55,132 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 14:39:55,133 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:39:55,133 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 14:39:55,133 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 14:39:55,133 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 14:39:55,133 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 14:39:55,133 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 14:39:55,133 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 14:39:55,133 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 14:39:55,133 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 14:39:55,133 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_aa2ffa91-5d91-4b9c-9d43-f72f9bd36cec/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2ffa91-5d91-4b9c-9d43-f72f9bd36cec/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71c9ad4d22d8803e8ce68978dcece5a0c38af93fd6faccf6f5517fe451659fc5 [2022-12-14 14:39:55,343 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 14:39:55,360 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 14:39:55,362 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 14:39:55,363 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 14:39:55,363 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 14:39:55,365 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2ffa91-5d91-4b9c-9d43-f72f9bd36cec/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b08.c [2022-12-14 14:39:57,955 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 14:39:58,115 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 14:39:58,115 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2ffa91-5d91-4b9c-9d43-f72f9bd36cec/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b08.c [2022-12-14 14:39:58,123 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2ffa91-5d91-4b9c-9d43-f72f9bd36cec/bin/utaipan-gh47qXpMRh/data/8570402b4/56bf73506c7d4a75908038c88801b4be/FLAGd1c55090f [2022-12-14 14:39:58,137 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2ffa91-5d91-4b9c-9d43-f72f9bd36cec/bin/utaipan-gh47qXpMRh/data/8570402b4/56bf73506c7d4a75908038c88801b4be [2022-12-14 14:39:58,139 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 14:39:58,141 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 14:39:58,142 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 14:39:58,142 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 14:39:58,145 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 14:39:58,146 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:39:58" (1/1) ... [2022-12-14 14:39:58,147 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f431443 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:39:58, skipping insertion in model container [2022-12-14 14:39:58,147 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:39:58" (1/1) ... [2022-12-14 14:39:58,154 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 14:39:58,181 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 14:39:58,309 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2ffa91-5d91-4b9c-9d43-f72f9bd36cec/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b08.c[1107,1120] [2022-12-14 14:39:58,386 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:39:58,391 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 14:39:58,401 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2ffa91-5d91-4b9c-9d43-f72f9bd36cec/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b08.c[1107,1120] [2022-12-14 14:39:58,451 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:39:58,464 INFO L208 MainTranslator]: Completed translation [2022-12-14 14:39:58,465 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:39:58 WrapperNode [2022-12-14 14:39:58,465 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 14:39:58,466 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 14:39:58,467 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 14:39:58,467 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 14:39:58,474 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:39:58" (1/1) ... [2022-12-14 14:39:58,484 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:39:58" (1/1) ... [2022-12-14 14:39:58,512 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 330 [2022-12-14 14:39:58,512 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 14:39:58,513 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 14:39:58,513 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 14:39:58,513 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 14:39:58,523 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:39:58" (1/1) ... [2022-12-14 14:39:58,523 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:39:58" (1/1) ... [2022-12-14 14:39:58,528 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:39:58" (1/1) ... [2022-12-14 14:39:58,528 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:39:58" (1/1) ... [2022-12-14 14:39:58,536 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:39:58" (1/1) ... [2022-12-14 14:39:58,540 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:39:58" (1/1) ... [2022-12-14 14:39:58,542 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:39:58" (1/1) ... [2022-12-14 14:39:58,544 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:39:58" (1/1) ... [2022-12-14 14:39:58,547 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 14:39:58,548 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 14:39:58,549 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 14:39:58,549 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 14:39:58,550 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:39:58" (1/1) ... [2022-12-14 14:39:58,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:39:58,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2ffa91-5d91-4b9c-9d43-f72f9bd36cec/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:39:58,576 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2ffa91-5d91-4b9c-9d43-f72f9bd36cec/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 14:39:58,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2ffa91-5d91-4b9c-9d43-f72f9bd36cec/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 14:39:58,611 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 14:39:58,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 14:39:58,719 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 14:39:58,720 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 14:39:58,997 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 14:39:59,004 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 14:39:59,004 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 14:39:59,006 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:39:59 BoogieIcfgContainer [2022-12-14 14:39:59,006 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 14:39:59,008 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 14:39:59,009 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 14:39:59,012 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 14:39:59,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 02:39:58" (1/3) ... [2022-12-14 14:39:59,013 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26c011fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:39:59, skipping insertion in model container [2022-12-14 14:39:59,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:39:58" (2/3) ... [2022-12-14 14:39:59,013 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26c011fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:39:59, skipping insertion in model container [2022-12-14 14:39:59,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:39:59" (3/3) ... [2022-12-14 14:39:59,015 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_b08.c [2022-12-14 14:39:59,032 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 14:39:59,032 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 14:39:59,072 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 14:39:59,077 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;@741539df, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 14:39:59,077 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 14:39:59,080 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:39:59,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 14:39:59,084 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:39:59,084 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 14:39:59,084 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:39:59,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:39:59,088 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-12-14 14:39:59,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 14:39:59,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [822408502] [2022-12-14 14:39:59,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:39:59,098 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 14:39:59,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2ffa91-5d91-4b9c-9d43-f72f9bd36cec/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 14:39:59,099 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2ffa91-5d91-4b9c-9d43-f72f9bd36cec/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 14:39:59,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2ffa91-5d91-4b9c-9d43-f72f9bd36cec/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-12-14 14:39:59,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:39:59,277 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 31 conjunts are in the unsatisfiable core [2022-12-14 14:39:59,283 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:39:59,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:39:59,437 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 14:39:59,437 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 14:39:59,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [822408502] [2022-12-14 14:39:59,438 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [822408502] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:39:59,438 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:39:59,439 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 14:39:59,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884508463] [2022-12-14 14:39:59,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:39:59,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 14:39:59,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 14:39:59,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 14:39:59,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 14:39:59,466 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:39:59,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:39:59,551 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-12-14 14:39:59,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 14:39:59,553 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-12-14 14:39:59,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:39:59,560 INFO L225 Difference]: With dead ends: 20 [2022-12-14 14:39:59,560 INFO L226 Difference]: Without dead ends: 11 [2022-12-14 14:39:59,563 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:39:59,566 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:39:59,567 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 14:39:59,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-12-14 14:39:59,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-12-14 14:39:59,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:39:59,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-12-14 14:39:59,595 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-12-14 14:39:59,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:39:59,595 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-12-14 14:39:59,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:39:59,596 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-12-14 14:39:59,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 14:39:59,596 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:39:59,596 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-12-14 14:39:59,610 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2ffa91-5d91-4b9c-9d43-f72f9bd36cec/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-12-14 14:39:59,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2ffa91-5d91-4b9c-9d43-f72f9bd36cec/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 14:39:59,799 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:39:59,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:39:59,802 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-12-14 14:39:59,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 14:39:59,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1256705836] [2022-12-14 14:39:59,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:39:59,808 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 14:39:59,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2ffa91-5d91-4b9c-9d43-f72f9bd36cec/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 14:39:59,812 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2ffa91-5d91-4b9c-9d43-f72f9bd36cec/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 14:39:59,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2ffa91-5d91-4b9c-9d43-f72f9bd36cec/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-12-14 14:40:00,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:40:00,207 INFO L263 TraceCheckSpWp]: Trace formula consists of 443 conjuncts, 39 conjunts are in the unsatisfiable core [2022-12-14 14:40:00,210 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:40:00,373 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:40:00,374 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:40:01,083 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:40:01,083 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 14:40:01,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1256705836] [2022-12-14 14:40:01,083 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1256705836] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:40:01,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [810882658] [2022-12-14 14:40:01,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:40:01,084 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 14:40:01,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2ffa91-5d91-4b9c-9d43-f72f9bd36cec/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 14:40:01,085 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2ffa91-5d91-4b9c-9d43-f72f9bd36cec/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 14:40:01,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2ffa91-5d91-4b9c-9d43-f72f9bd36cec/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2022-12-14 14:40:01,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:40:01,452 INFO L263 TraceCheckSpWp]: Trace formula consists of 443 conjuncts, 45 conjunts are in the unsatisfiable core [2022-12-14 14:40:01,455 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:40:01,582 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:40:01,582 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:40:01,892 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:40:01,892 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [810882658] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:40:01,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1251128656] [2022-12-14 14:40:01,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:40:01,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:40:01,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2ffa91-5d91-4b9c-9d43-f72f9bd36cec/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:40:01,894 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2ffa91-5d91-4b9c-9d43-f72f9bd36cec/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:40:01,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2ffa91-5d91-4b9c-9d43-f72f9bd36cec/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 14:40:02,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:40:02,034 INFO L263 TraceCheckSpWp]: Trace formula consists of 443 conjuncts, 45 conjunts are in the unsatisfiable core [2022-12-14 14:40:02,037 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:40:02,170 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:40:02,170 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:40:02,533 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:40:02,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1251128656] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:40:02,534 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-12-14 14:40:02,534 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 6, 6] total 11 [2022-12-14 14:40:02,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679158057] [2022-12-14 14:40:02,535 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-12-14 14:40:02,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-14 14:40:02,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 14:40:02,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-14 14:40:02,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2022-12-14 14:40:02,537 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 11 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:40:02,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:40:02,683 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-12-14 14:40:02,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 14:40:02,683 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-12-14 14:40:02,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:40:02,684 INFO L225 Difference]: With dead ends: 16 [2022-12-14 14:40:02,684 INFO L226 Difference]: Without dead ends: 14 [2022-12-14 14:40:02,684 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 SyntacticMatches, 4 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2022-12-14 14:40:02,685 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 11 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:40:02,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 19 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 14:40:02,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-12-14 14:40:02,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-12-14 14:40:02,687 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) [2022-12-14 14:40:02,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-12-14 14:40:02,688 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-12-14 14:40:02,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:40:02,688 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-12-14 14:40:02,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:40:02,688 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-12-14 14:40:02,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 14:40:02,688 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:40:02,688 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-12-14 14:40:02,692 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2ffa91-5d91-4b9c-9d43-f72f9bd36cec/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2022-12-14 14:40:02,929 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2ffa91-5d91-4b9c-9d43-f72f9bd36cec/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-12-14 14:40:03,099 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2ffa91-5d91-4b9c-9d43-f72f9bd36cec/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 14:40:03,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2ffa91-5d91-4b9c-9d43-f72f9bd36cec/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2ffa91-5d91-4b9c-9d43-f72f9bd36cec/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2ffa91-5d91-4b9c-9d43-f72f9bd36cec/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:40:03,292 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:40:03,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:40:03,294 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-12-14 14:40:03,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 14:40:03,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1484301906] [2022-12-14 14:40:03,297 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-14 14:40:03,297 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 14:40:03,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2ffa91-5d91-4b9c-9d43-f72f9bd36cec/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 14:40:03,298 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2ffa91-5d91-4b9c-9d43-f72f9bd36cec/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 14:40:03,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2ffa91-5d91-4b9c-9d43-f72f9bd36cec/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-12-14 14:40:03,436 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-14 14:40:03,437 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 14:40:03,445 WARN L261 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 116 conjunts are in the unsatisfiable core [2022-12-14 14:40:03,448 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:40:05,979 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-14 14:40:05,979 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:40:09,464 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-14 14:40:09,464 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 14:40:09,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1484301906] [2022-12-14 14:40:09,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1484301906] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:40:09,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1742461448] [2022-12-14 14:40:09,465 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-14 14:40:09,465 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 14:40:09,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2ffa91-5d91-4b9c-9d43-f72f9bd36cec/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 14:40:09,466 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2ffa91-5d91-4b9c-9d43-f72f9bd36cec/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 14:40:09,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2ffa91-5d91-4b9c-9d43-f72f9bd36cec/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2022-12-14 14:40:09,684 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-14 14:40:09,684 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 14:40:09,689 WARN L261 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 116 conjunts are in the unsatisfiable core [2022-12-14 14:40:09,696 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:40:11,719 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-14 14:40:11,720 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:40:14,371 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-14 14:40:14,371 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1742461448] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:40:14,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [515498404] [2022-12-14 14:40:14,371 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-14 14:40:14,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:40:14,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2ffa91-5d91-4b9c-9d43-f72f9bd36cec/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:40:14,372 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2ffa91-5d91-4b9c-9d43-f72f9bd36cec/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:40:14,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2ffa91-5d91-4b9c-9d43-f72f9bd36cec/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-14 14:40:14,505 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-14 14:40:14,505 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 14:40:14,509 WARN L261 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 159 conjunts are in the unsatisfiable core [2022-12-14 14:40:14,512 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:40:17,173 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-14 14:40:17,173 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:40:36,305 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-14 14:40:36,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [515498404] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:40:36,305 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-12-14 14:40:36,305 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4, 4, 4, 4] total 8 [2022-12-14 14:40:36,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118641890] [2022-12-14 14:40:36,306 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-12-14 14:40:36,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 14:40:36,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 14:40:36,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 14:40:36,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-12-14 14:40:36,307 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 8 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:40:36,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:40:36,401 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2022-12-14 14:40:36,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 14:40:36,403 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-12-14 14:40:36,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:40:36,403 INFO L225 Difference]: With dead ends: 12 [2022-12-14 14:40:36,404 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 14:40:36,404 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 53 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-12-14 14:40:36,404 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 2 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 14:40:36,405 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 8 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 14:40:36,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 14:40:36,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 14:40:36,405 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) [2022-12-14 14:40:36,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 14:40:36,406 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2022-12-14 14:40:36,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:40:36,406 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 14:40:36,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:40:36,406 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 14:40:36,406 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 14:40:36,408 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-14 14:40:36,417 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2ffa91-5d91-4b9c-9d43-f72f9bd36cec/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-12-14 14:40:36,618 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2ffa91-5d91-4b9c-9d43-f72f9bd36cec/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2022-12-14 14:40:36,816 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2ffa91-5d91-4b9c-9d43-f72f9bd36cec/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-14 14:40:37,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2ffa91-5d91-4b9c-9d43-f72f9bd36cec/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2ffa91-5d91-4b9c-9d43-f72f9bd36cec/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2ffa91-5d91-4b9c-9d43-f72f9bd36cec/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:40:37,014 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-14 14:40:37,275 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-14 14:40:37,275 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-14 14:40:37,275 INFO L895 garLoopResultBuilder]: At program point main_returnLabel#1(lines 22 329) the Hoare annotation is: false [2022-12-14 14:40:37,276 INFO L895 garLoopResultBuilder]: At program point L98-2(lines 98 327) the Hoare annotation is: (let ((.cse0 (= (_ bv6 32) |ULTIMATE.start_main_~var_15~0#1|)) (.cse1 (= (_ bv1 8) |ULTIMATE.start_main_~mask_SORT_1~0#1|)) (.cse2 (= (_ bv1048430 32) |ULTIMATE.start_main_~var_60~0#1|)) (.cse3 (= (_ bv15 8) |ULTIMATE.start_main_~mask_SORT_90~0#1|)) (.cse4 (= (_ bv236898 32) |ULTIMATE.start_main_~var_84~0#1|)) (.cse5 (= (_ bv522618 32) |ULTIMATE.start_main_~var_88~0#1|)) (.cse6 (= |ULTIMATE.start_main_~var_78~0#1| (_ bv692223 32))) (.cse7 (= |ULTIMATE.start_main_~var_20~0#1| (_ bv5 32))) (.cse8 (= (_ bv196596 32) |ULTIMATE.start_main_~var_7~0#1|)) (.cse9 (= |ULTIMATE.start_main_~var_40~0#1| (_ bv1 32))) (.cse10 (= (_ bv2 32) |ULTIMATE.start_main_~var_35~0#1|)) (.cse11 (= (_ bv1047464 32) |ULTIMATE.start_main_~var_48~0#1|)) (.cse12 (= (_ bv3 32) |ULTIMATE.start_main_~var_30~0#1|)) (.cse13 (= (_ bv1046202 32) |ULTIMATE.start_main_~var_70~0#1|)) (.cse14 (= (_ bv7 8) |ULTIMATE.start_main_~mask_SORT_9~0#1|)) (.cse15 (= (_ bv829275 32) |ULTIMATE.start_main_~var_8~0#1|)) (.cse16 (= |ULTIMATE.start_main_~var_45~0#1| (_ bv0 32))) (.cse17 (= (_ bv4 32) |ULTIMATE.start_main_~var_25~0#1|))) (or (and .cse0 .cse1 .cse2 .cse3 (= |ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)) .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 (= |ULTIMATE.start_main_~var_107~0#1| |ULTIMATE.start_main_~state_108~0#1|) (= (_ bv0 8) |ULTIMATE.start_main_~state_11~0#1|) .cse6 .cse7 .cse8 .cse9 .cse10 (= |ULTIMATE.start_main_~var_107~0#1| (_ bv0 8)) .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17))) [2022-12-14 14:40:37,276 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-12-14 14:40:37,276 INFO L899 garLoopResultBuilder]: For program point L98-3(lines 98 327) no Hoare annotation was computed. [2022-12-14 14:40:37,276 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-12-14 14:40:37,276 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 20) no Hoare annotation was computed. [2022-12-14 14:40:37,276 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2022-12-14 14:40:37,276 INFO L899 garLoopResultBuilder]: For program point L20-1(line 20) no Hoare annotation was computed. [2022-12-14 14:40:37,276 INFO L899 garLoopResultBuilder]: For program point L20-3(line 20) no Hoare annotation was computed. [2022-12-14 14:40:37,279 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1] [2022-12-14 14:40:37,281 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 14:40:37,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 02:40:37 BoogieIcfgContainer [2022-12-14 14:40:37,291 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 14:40:37,292 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 14:40:37,292 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 14:40:37,292 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 14:40:37,292 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:39:59" (3/4) ... [2022-12-14 14:40:37,294 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 14:40:37,302 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-12-14 14:40:37,302 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-12-14 14:40:37,302 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 14:40:37,338 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2ffa91-5d91-4b9c-9d43-f72f9bd36cec/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 14:40:37,338 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 14:40:37,339 INFO L158 Benchmark]: Toolchain (without parser) took 39198.39ms. Allocated memory was 67.1MB in the beginning and 270.5MB in the end (delta: 203.4MB). Free memory was 41.9MB in the beginning and 108.6MB in the end (delta: -66.7MB). Peak memory consumption was 137.8MB. Max. memory is 16.1GB. [2022-12-14 14:40:37,339 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 67.1MB. Free memory is still 46.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 14:40:37,339 INFO L158 Benchmark]: CACSL2BoogieTranslator took 323.72ms. Allocated memory was 67.1MB in the beginning and 88.1MB in the end (delta: 21.0MB). Free memory was 41.7MB in the beginning and 66.4MB in the end (delta: -24.7MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. [2022-12-14 14:40:37,340 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.26ms. Allocated memory is still 88.1MB. Free memory was 66.4MB in the beginning and 63.6MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 14:40:37,340 INFO L158 Benchmark]: Boogie Preprocessor took 34.34ms. Allocated memory is still 88.1MB. Free memory was 63.6MB in the beginning and 61.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 14:40:37,340 INFO L158 Benchmark]: RCFGBuilder took 457.68ms. Allocated memory is still 88.1MB. Free memory was 61.5MB in the beginning and 57.0MB in the end (delta: 4.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-12-14 14:40:37,340 INFO L158 Benchmark]: TraceAbstraction took 38282.81ms. Allocated memory was 88.1MB in the beginning and 270.5MB in the end (delta: 182.5MB). Free memory was 56.5MB in the beginning and 113.8MB in the end (delta: -57.3MB). Peak memory consumption was 124.9MB. Max. memory is 16.1GB. [2022-12-14 14:40:37,340 INFO L158 Benchmark]: Witness Printer took 46.94ms. Allocated memory is still 270.5MB. Free memory was 113.8MB in the beginning and 108.6MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-12-14 14:40:37,341 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 67.1MB. Free memory is still 46.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 323.72ms. Allocated memory was 67.1MB in the beginning and 88.1MB in the end (delta: 21.0MB). Free memory was 41.7MB in the beginning and 66.4MB in the end (delta: -24.7MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.26ms. Allocated memory is still 88.1MB. Free memory was 66.4MB in the beginning and 63.6MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.34ms. Allocated memory is still 88.1MB. Free memory was 63.6MB in the beginning and 61.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 457.68ms. Allocated memory is still 88.1MB. Free memory was 61.5MB in the beginning and 57.0MB in the end (delta: 4.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 38282.81ms. Allocated memory was 88.1MB in the beginning and 270.5MB in the end (delta: 182.5MB). Free memory was 56.5MB in the beginning and 113.8MB in the end (delta: -57.3MB). Peak memory consumption was 124.9MB. Max. memory is 16.1GB. * Witness Printer took 46.94ms. Allocated memory is still 270.5MB. Free memory was 113.8MB in the beginning and 108.6MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 20]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 38.2s, OverallIterations: 3, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 17 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 17 mSDsluCounter, 40 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 29 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 33 IncrementalHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 11 mSDtfsCounter, 33 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 110 GetRequests, 84 SyntacticMatches, 5 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 6.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=2, InterpolantAutomatonStates: 17, 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, 3 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 5 NumberOfFragments, 124 HoareAnnotationTreeSize, 2 FomulaSimplifications, 8 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 61 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 34.5s InterpolantComputationTime, 62 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 106 ConstructedInterpolants, 33 QuantifiedInterpolants, 24980 SizeOfPredicates, 623 NumberOfNonLiveVariables, 2245 ConjunctsInSsa, 551 ConjunctsInUnsatCore, 13 InterpolantComputations, 1 PerfectInterpolantSequences, 30/54 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: 98]: Loop Invariant Derived loop invariant: ((((((((((((((((((6bv32 == var_15 && 1bv8 == mask_SORT_1) && 1048430bv32 == var_60) && 15bv8 == mask_SORT_90) && cond == 1bv32) && 236898bv32 == var_84) && 522618bv32 == var_88) && var_78 == 692223bv32) && var_20 == 5bv32) && 196596bv32 == var_7) && var_40 == 1bv32) && 2bv32 == var_35) && 1047464bv32 == var_48) && 3bv32 == var_30) && 1046202bv32 == var_70) && 7bv8 == mask_SORT_9) && 829275bv32 == var_8) && var_45 == 0bv32) && 4bv32 == var_25) || ((((((((((((((((((((6bv32 == var_15 && 1bv8 == mask_SORT_1) && 1048430bv32 == var_60) && 15bv8 == mask_SORT_90) && 236898bv32 == var_84) && 522618bv32 == var_88) && var_107 == state_108) && 0bv8 == state_11) && var_78 == 692223bv32) && var_20 == 5bv32) && 196596bv32 == var_7) && var_40 == 1bv32) && 2bv32 == var_35) && var_107 == 0bv8) && 1047464bv32 == var_48) && 3bv32 == var_30) && 1046202bv32 == var_70) && 7bv8 == mask_SORT_9) && 829275bv32 == var_8) && var_45 == 0bv32) && 4bv32 == var_25) RESULT: Ultimate proved your program to be correct! [2022-12-14 14:40:37,362 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa2ffa91-5d91-4b9c-9d43-f72f9bd36cec/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE