./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal54.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f 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_adcf3138-5c9e-48d5-be1c-da2c26df649e/bin/utaipan-Xvt2sAort0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adcf3138-5c9e-48d5-be1c-da2c26df649e/bin/utaipan-Xvt2sAort0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adcf3138-5c9e-48d5-be1c-da2c26df649e/bin/utaipan-Xvt2sAort0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adcf3138-5c9e-48d5-be1c-da2c26df649e/bin/utaipan-Xvt2sAort0/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal54.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adcf3138-5c9e-48d5-be1c-da2c26df649e/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adcf3138-5c9e-48d5-be1c-da2c26df649e/bin/utaipan-Xvt2sAort0 --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 a57a912aff80ad559a0b614e92a359dd4b5edd9175df70bc4234fe728f540265 --- 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-e04fb08 [2022-11-16 20:01:20,017 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 20:01:20,020 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 20:01:20,053 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 20:01:20,054 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 20:01:20,055 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 20:01:20,056 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 20:01:20,071 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 20:01:20,075 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 20:01:20,079 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 20:01:20,081 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 20:01:20,084 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 20:01:20,086 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 20:01:20,094 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 20:01:20,096 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 20:01:20,097 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 20:01:20,100 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 20:01:20,101 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 20:01:20,103 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 20:01:20,106 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 20:01:20,111 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 20:01:20,113 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 20:01:20,115 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 20:01:20,118 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 20:01:20,122 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 20:01:20,128 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 20:01:20,128 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 20:01:20,129 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 20:01:20,131 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 20:01:20,133 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 20:01:20,133 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 20:01:20,134 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 20:01:20,137 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 20:01:20,138 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 20:01:20,140 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 20:01:20,140 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 20:01:20,142 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 20:01:20,142 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 20:01:20,142 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 20:01:20,143 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 20:01:20,144 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 20:01:20,145 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adcf3138-5c9e-48d5-be1c-da2c26df649e/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-16 20:01:20,195 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 20:01:20,196 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 20:01:20,196 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 20:01:20,197 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 20:01:20,198 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 20:01:20,198 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 20:01:20,199 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-16 20:01:20,199 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-16 20:01:20,199 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-16 20:01:20,199 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-16 20:01:20,201 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-16 20:01:20,201 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-16 20:01:20,202 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-16 20:01:20,202 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-16 20:01:20,202 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-16 20:01:20,202 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-16 20:01:20,203 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-16 20:01:20,203 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-16 20:01:20,204 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 20:01:20,204 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 20:01:20,204 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 20:01:20,205 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 20:01:20,205 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 20:01:20,208 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 20:01:20,208 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 20:01:20,208 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 20:01:20,208 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 20:01:20,209 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 20:01:20,209 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 20:01:20,209 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 20:01:20,210 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 20:01:20,210 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-16 20:01:20,211 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 20:01:20,211 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 20:01:20,211 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-16 20:01:20,211 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 20:01:20,212 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 20:01:20,212 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-16 20:01:20,212 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_adcf3138-5c9e-48d5-be1c-da2c26df649e/bin/utaipan-Xvt2sAort0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adcf3138-5c9e-48d5-be1c-da2c26df649e/bin/utaipan-Xvt2sAort0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a57a912aff80ad559a0b614e92a359dd4b5edd9175df70bc4234fe728f540265 [2022-11-16 20:01:20,543 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 20:01:20,581 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 20:01:20,585 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 20:01:20,587 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 20:01:20,588 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 20:01:20,590 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adcf3138-5c9e-48d5-be1c-da2c26df649e/bin/utaipan-Xvt2sAort0/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal54.c [2022-11-16 20:01:20,685 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adcf3138-5c9e-48d5-be1c-da2c26df649e/bin/utaipan-Xvt2sAort0/data/3f6270226/2a09874f43cf4702adba1dac0400f106/FLAGd05b5c9fe [2022-11-16 20:01:21,228 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 20:01:21,229 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adcf3138-5c9e-48d5-be1c-da2c26df649e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal54.c [2022-11-16 20:01:21,238 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adcf3138-5c9e-48d5-be1c-da2c26df649e/bin/utaipan-Xvt2sAort0/data/3f6270226/2a09874f43cf4702adba1dac0400f106/FLAGd05b5c9fe [2022-11-16 20:01:21,589 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adcf3138-5c9e-48d5-be1c-da2c26df649e/bin/utaipan-Xvt2sAort0/data/3f6270226/2a09874f43cf4702adba1dac0400f106 [2022-11-16 20:01:21,593 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 20:01:21,595 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 20:01:21,597 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 20:01:21,597 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 20:01:21,602 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 20:01:21,604 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:01:21" (1/1) ... [2022-11-16 20:01:21,606 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bcb0e98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:01:21, skipping insertion in model container [2022-11-16 20:01:21,606 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:01:21" (1/1) ... [2022-11-16 20:01:21,618 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 20:01:21,664 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 20:01:21,859 WARN L229 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_adcf3138-5c9e-48d5-be1c-da2c26df649e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal54.c[1107,1120] [2022-11-16 20:01:21,934 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 20:01:21,938 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 20:01:21,951 WARN L229 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_adcf3138-5c9e-48d5-be1c-da2c26df649e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal54.c[1107,1120] [2022-11-16 20:01:22,033 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 20:01:22,073 INFO L208 MainTranslator]: Completed translation [2022-11-16 20:01:22,074 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:01:22 WrapperNode [2022-11-16 20:01:22,074 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 20:01:22,075 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 20:01:22,076 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 20:01:22,077 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 20:01:22,085 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:01:22" (1/1) ... [2022-11-16 20:01:22,105 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:01:22" (1/1) ... [2022-11-16 20:01:22,154 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 248 [2022-11-16 20:01:22,162 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 20:01:22,163 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 20:01:22,163 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 20:01:22,163 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 20:01:22,176 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:01:22" (1/1) ... [2022-11-16 20:01:22,176 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:01:22" (1/1) ... [2022-11-16 20:01:22,181 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:01:22" (1/1) ... [2022-11-16 20:01:22,182 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:01:22" (1/1) ... [2022-11-16 20:01:22,190 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:01:22" (1/1) ... [2022-11-16 20:01:22,195 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:01:22" (1/1) ... [2022-11-16 20:01:22,198 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:01:22" (1/1) ... [2022-11-16 20:01:22,200 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:01:22" (1/1) ... [2022-11-16 20:01:22,203 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 20:01:22,205 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 20:01:22,205 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 20:01:22,205 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 20:01:22,206 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:01:22" (1/1) ... [2022-11-16 20:01:22,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 20:01:22,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adcf3138-5c9e-48d5-be1c-da2c26df649e/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 20:01:22,248 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adcf3138-5c9e-48d5-be1c-da2c26df649e/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 20:01:22,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adcf3138-5c9e-48d5-be1c-da2c26df649e/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 20:01:22,326 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 20:01:22,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 20:01:22,436 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 20:01:22,438 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 20:01:23,031 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 20:01:23,497 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 20:01:23,497 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 20:01:23,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 08:01:23 BoogieIcfgContainer [2022-11-16 20:01:23,501 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 20:01:23,504 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 20:01:23,504 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 20:01:23,508 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 20:01:23,509 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 08:01:21" (1/3) ... [2022-11-16 20:01:23,510 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5122556c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:01:23, skipping insertion in model container [2022-11-16 20:01:23,510 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:01:22" (2/3) ... [2022-11-16 20:01:23,511 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5122556c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:01:23, skipping insertion in model container [2022-11-16 20:01:23,511 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 08:01:23" (3/3) ... [2022-11-16 20:01:23,515 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal54.c [2022-11-16 20:01:23,540 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 20:01:23,541 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 20:01:23,629 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 20:01:23,646 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;@71327eb9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 20:01:23,647 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 20:01:23,652 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:01:23,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-16 20:01:23,661 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:01:23,662 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-16 20:01:23,663 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 20:01:23,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:01:23,672 INFO L85 PathProgramCache]: Analyzing trace with hash 5587477, now seen corresponding path program 1 times [2022-11-16 20:01:23,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:01:23,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936181494] [2022-11-16 20:01:23,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:01:23,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:01:24,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 20:01:24,152 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 20:01:24,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 20:01:24,471 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-16 20:01:24,480 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-16 20:01:24,482 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-16 20:01:24,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 20:01:24,490 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-16 20:01:24,501 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 20:01:24,540 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-16 20:01:24,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 08:01:24 BoogieIcfgContainer [2022-11-16 20:01:24,558 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 20:01:24,560 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 20:01:24,560 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 20:01:24,560 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 20:01:24,562 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 08:01:23" (3/4) ... [2022-11-16 20:01:24,566 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-16 20:01:24,566 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 20:01:24,568 INFO L158 Benchmark]: Toolchain (without parser) took 2973.32ms. Allocated memory is still 136.3MB. Free memory was 103.4MB in the beginning and 105.8MB in the end (delta: -2.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 20:01:24,571 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 88.1MB. Free memory is still 40.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 20:01:24,572 INFO L158 Benchmark]: CACSL2BoogieTranslator took 477.50ms. Allocated memory is still 136.3MB. Free memory was 103.1MB in the beginning and 108.7MB in the end (delta: -5.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-16 20:01:24,573 INFO L158 Benchmark]: Boogie Procedure Inliner took 86.53ms. Allocated memory is still 136.3MB. Free memory was 108.7MB in the beginning and 105.9MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 20:01:24,574 INFO L158 Benchmark]: Boogie Preprocessor took 41.31ms. Allocated memory is still 136.3MB. Free memory was 105.9MB in the beginning and 103.6MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 20:01:24,580 INFO L158 Benchmark]: RCFGBuilder took 1296.40ms. Allocated memory is still 136.3MB. Free memory was 103.6MB in the beginning and 95.8MB in the end (delta: 7.8MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2022-11-16 20:01:24,581 INFO L158 Benchmark]: TraceAbstraction took 1053.50ms. Allocated memory is still 136.3MB. Free memory was 95.1MB in the beginning and 105.8MB in the end (delta: -10.6MB). Peak memory consumption was 48.4MB. Max. memory is 16.1GB. [2022-11-16 20:01:24,583 INFO L158 Benchmark]: Witness Printer took 7.55ms. Allocated memory is still 136.3MB. Free memory is still 105.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 20:01:24,591 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 88.1MB. Free memory is still 40.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 477.50ms. Allocated memory is still 136.3MB. Free memory was 103.1MB in the beginning and 108.7MB in the end (delta: -5.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 86.53ms. Allocated memory is still 136.3MB. Free memory was 108.7MB in the beginning and 105.9MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.31ms. Allocated memory is still 136.3MB. Free memory was 105.9MB in the beginning and 103.6MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1296.40ms. Allocated memory is still 136.3MB. Free memory was 103.6MB in the beginning and 95.8MB in the end (delta: 7.8MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * TraceAbstraction took 1053.50ms. Allocated memory is still 136.3MB. Free memory was 95.1MB in the beginning and 105.8MB in the end (delta: -10.6MB). Peak memory consumption was 48.4MB. Max. memory is 16.1GB. * Witness Printer took 7.55ms. Allocated memory is still 136.3MB. Free memory is still 105.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 20]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 93, overapproximation of bitwiseComplement at line 77, overapproximation of bitwiseAnd at line 65. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L28] const SORT_5 mask_SORT_5 = (SORT_5)-1 >> (sizeof(SORT_5) * 8 - 3); [L29] const SORT_5 msb_SORT_5 = (SORT_5)1 << (3 - 1); [L31] const SORT_26 mask_SORT_26 = (SORT_26)-1 >> (sizeof(SORT_26) * 8 - 2); [L32] const SORT_26 msb_SORT_26 = (SORT_26)1 << (2 - 1); [L34] const SORT_1 var_11 = 0; [L35] const SORT_5 var_15 = 0; [L36] const SORT_5 var_21 = 2; [L37] const SORT_5 var_23 = 1; [L38] const SORT_1 var_39 = 1; [L40] SORT_1 input_2; [L41] SORT_1 input_3; [L42] SORT_1 input_4; [L43] SORT_5 input_6; [L44] SORT_5 input_7; [L45] SORT_1 input_8; [L46] SORT_5 input_9; [L47] SORT_5 input_10; [L49] SORT_1 state_12 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L50] SORT_5 state_16 = __VERIFIER_nondet_uchar() & mask_SORT_5; [L51] SORT_1 state_18 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L52] SORT_5 state_29 = __VERIFIER_nondet_uchar() & mask_SORT_5; [L54] SORT_1 init_13_arg_1 = var_11; [L55] state_12 = init_13_arg_1 [L56] SORT_5 init_17_arg_1 = var_15; [L57] state_16 = init_17_arg_1 [L58] SORT_1 init_19_arg_1 = var_11; [L59] state_18 = init_19_arg_1 [L60] SORT_5 init_30_arg_1 = var_15; [L61] state_29 = init_30_arg_1 VAL [init_13_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_30_arg_1=0, mask_SORT_1=1, mask_SORT_26=3, mask_SORT_5=7, msb_SORT_1=1, msb_SORT_26=2, msb_SORT_5=4, state_12=0, state_16=0, state_18=0, state_29=0, var_11=0, var_15=0, var_21=2, var_23=1, var_39=1] [L64] input_2 = __VERIFIER_nondet_uchar() [L65] input_2 = input_2 & mask_SORT_1 [L66] input_3 = __VERIFIER_nondet_uchar() [L67] input_3 = input_3 & mask_SORT_1 [L68] input_4 = __VERIFIER_nondet_uchar() [L69] input_6 = __VERIFIER_nondet_uchar() [L70] input_7 = __VERIFIER_nondet_uchar() [L71] input_8 = __VERIFIER_nondet_uchar() [L72] input_9 = __VERIFIER_nondet_uchar() [L73] input_10 = __VERIFIER_nondet_uchar() [L76] SORT_1 var_14_arg_0 = state_12; [L77] SORT_1 var_14 = ~var_14_arg_0; [L78] SORT_1 var_20_arg_0 = state_18; [L79] SORT_5 var_20_arg_1 = state_16; [L80] SORT_5 var_20_arg_2 = input_7; [L81] SORT_5 var_20 = var_20_arg_0 ? var_20_arg_1 : var_20_arg_2; [L82] var_20 = var_20 & mask_SORT_5 [L83] SORT_5 var_24_arg_0 = var_20; [L84] SORT_5 var_24_arg_1 = var_23; [L85] SORT_1 var_24 = var_24_arg_0 == var_24_arg_1; [L86] SORT_1 var_25_arg_0 = var_24; [L87] SORT_1 var_25 = ~var_25_arg_0; [L88] SORT_5 var_22_arg_0 = var_20; [L89] SORT_5 var_22_arg_1 = var_21; [L90] SORT_1 var_22 = var_22_arg_0 == var_22_arg_1; [L91] SORT_1 var_27_arg_0 = var_25; [L92] SORT_1 var_27_arg_1 = var_22; [L93] SORT_26 var_27 = ((SORT_26)var_27_arg_0 << 1) | var_27_arg_1; [L94] var_27 = var_27 & mask_SORT_26 [L95] SORT_26 var_28_arg_0 = var_27; [L96] SORT_1 var_28 = var_28_arg_0 == mask_SORT_26; [L97] SORT_1 var_31_arg_0 = state_18; [L98] SORT_5 var_31_arg_1 = state_29; [L99] SORT_5 var_31_arg_2 = input_7; [L100] SORT_5 var_31 = var_31_arg_0 ? var_31_arg_1 : var_31_arg_2; [L101] var_31 = var_31 & mask_SORT_5 [L102] SORT_5 var_32_arg_0 = var_31; [L103] SORT_5 var_32_arg_1 = var_21; [L104] SORT_1 var_32 = var_32_arg_0 == var_32_arg_1; [L105] SORT_1 var_33_arg_0 = var_25; [L106] SORT_1 var_33_arg_1 = var_32; [L107] SORT_26 var_33 = ((SORT_26)var_33_arg_0 << 1) | var_33_arg_1; [L108] var_33 = var_33 & mask_SORT_26 [L109] SORT_26 var_34_arg_0 = var_33; [L110] SORT_1 var_34 = var_34_arg_0 == mask_SORT_26; [L111] SORT_1 var_35_arg_0 = var_28; [L112] SORT_1 var_35_arg_1 = var_34; [L113] SORT_1 var_35 = var_35_arg_0 == var_35_arg_1; [L114] SORT_1 var_36_arg_0 = var_14; [L115] SORT_1 var_36_arg_1 = var_35; [L116] SORT_1 var_36 = var_36_arg_0 | var_36_arg_1; [L117] SORT_1 var_40_arg_0 = var_36; [L118] SORT_1 var_40 = ~var_40_arg_0; [L119] SORT_1 var_41_arg_0 = var_39; [L120] SORT_1 var_41_arg_1 = var_40; [L121] SORT_1 var_41 = var_41_arg_0 & var_41_arg_1; [L122] var_41 = var_41 & mask_SORT_1 [L123] SORT_1 bad_42_arg_0 = var_41; [L124] CALL __VERIFIER_assert(!(bad_42_arg_0)) [L20] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L20] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-16 20:01:24,629 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adcf3138-5c9e-48d5-be1c-da2c26df649e/bin/utaipan-Xvt2sAort0/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_adcf3138-5c9e-48d5-be1c-da2c26df649e/bin/utaipan-Xvt2sAort0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adcf3138-5c9e-48d5-be1c-da2c26df649e/bin/utaipan-Xvt2sAort0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adcf3138-5c9e-48d5-be1c-da2c26df649e/bin/utaipan-Xvt2sAort0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adcf3138-5c9e-48d5-be1c-da2c26df649e/bin/utaipan-Xvt2sAort0/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal54.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adcf3138-5c9e-48d5-be1c-da2c26df649e/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adcf3138-5c9e-48d5-be1c-da2c26df649e/bin/utaipan-Xvt2sAort0 --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 a57a912aff80ad559a0b614e92a359dd4b5edd9175df70bc4234fe728f540265 --- 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-e04fb08 [2022-11-16 20:01:27,321 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 20:01:27,323 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 20:01:27,361 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 20:01:27,361 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 20:01:27,366 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 20:01:27,370 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 20:01:27,375 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 20:01:27,379 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 20:01:27,388 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 20:01:27,389 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 20:01:27,391 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 20:01:27,393 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 20:01:27,395 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 20:01:27,397 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 20:01:27,399 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 20:01:27,402 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 20:01:27,403 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 20:01:27,409 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 20:01:27,414 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 20:01:27,420 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 20:01:27,423 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 20:01:27,424 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 20:01:27,426 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 20:01:27,431 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 20:01:27,437 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 20:01:27,438 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 20:01:27,439 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 20:01:27,440 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 20:01:27,442 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 20:01:27,443 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 20:01:27,444 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 20:01:27,445 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 20:01:27,447 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 20:01:27,448 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 20:01:27,449 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 20:01:27,450 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 20:01:27,450 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 20:01:27,451 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 20:01:27,453 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 20:01:27,454 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 20:01:27,460 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adcf3138-5c9e-48d5-be1c-da2c26df649e/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-16 20:01:27,506 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 20:01:27,506 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 20:01:27,507 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 20:01:27,508 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 20:01:27,509 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 20:01:27,509 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 20:01:27,510 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-16 20:01:27,510 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-16 20:01:27,510 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-16 20:01:27,511 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-16 20:01:27,512 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-16 20:01:27,512 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-16 20:01:27,514 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 20:01:27,514 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 20:01:27,515 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 20:01:27,515 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 20:01:27,515 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 20:01:27,516 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-16 20:01:27,516 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-16 20:01:27,516 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-16 20:01:27,517 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 20:01:27,517 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 20:01:27,517 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 20:01:27,518 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 20:01:27,518 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 20:01:27,518 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 20:01:27,519 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 20:01:27,519 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 20:01:27,519 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 20:01:27,520 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 20:01:27,520 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-16 20:01:27,520 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-16 20:01:27,521 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 20:01:27,522 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-16 20:01:27,522 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-16 20:01:27,522 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_adcf3138-5c9e-48d5-be1c-da2c26df649e/bin/utaipan-Xvt2sAort0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adcf3138-5c9e-48d5-be1c-da2c26df649e/bin/utaipan-Xvt2sAort0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a57a912aff80ad559a0b614e92a359dd4b5edd9175df70bc4234fe728f540265 [2022-11-16 20:01:28,013 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 20:01:28,063 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 20:01:28,068 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 20:01:28,070 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 20:01:28,071 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 20:01:28,073 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adcf3138-5c9e-48d5-be1c-da2c26df649e/bin/utaipan-Xvt2sAort0/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal54.c [2022-11-16 20:01:28,158 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adcf3138-5c9e-48d5-be1c-da2c26df649e/bin/utaipan-Xvt2sAort0/data/b88c5208e/4152e0d23f1d4ea7b43d7b6898c5fe09/FLAG0644d1db6 [2022-11-16 20:01:28,831 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 20:01:28,832 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adcf3138-5c9e-48d5-be1c-da2c26df649e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal54.c [2022-11-16 20:01:28,841 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adcf3138-5c9e-48d5-be1c-da2c26df649e/bin/utaipan-Xvt2sAort0/data/b88c5208e/4152e0d23f1d4ea7b43d7b6898c5fe09/FLAG0644d1db6 [2022-11-16 20:01:29,155 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adcf3138-5c9e-48d5-be1c-da2c26df649e/bin/utaipan-Xvt2sAort0/data/b88c5208e/4152e0d23f1d4ea7b43d7b6898c5fe09 [2022-11-16 20:01:29,159 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 20:01:29,161 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 20:01:29,162 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 20:01:29,163 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 20:01:29,170 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 20:01:29,171 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:01:29" (1/1) ... [2022-11-16 20:01:29,173 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c20313c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:01:29, skipping insertion in model container [2022-11-16 20:01:29,173 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:01:29" (1/1) ... [2022-11-16 20:01:29,182 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 20:01:29,211 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 20:01:29,376 WARN L229 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_adcf3138-5c9e-48d5-be1c-da2c26df649e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal54.c[1107,1120] [2022-11-16 20:01:29,508 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 20:01:29,518 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 20:01:29,531 WARN L229 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_adcf3138-5c9e-48d5-be1c-da2c26df649e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal54.c[1107,1120] [2022-11-16 20:01:29,610 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 20:01:29,630 INFO L208 MainTranslator]: Completed translation [2022-11-16 20:01:29,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:01:29 WrapperNode [2022-11-16 20:01:29,632 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 20:01:29,634 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 20:01:29,634 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 20:01:29,634 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 20:01:29,643 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:01:29" (1/1) ... [2022-11-16 20:01:29,666 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:01:29" (1/1) ... [2022-11-16 20:01:29,710 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 178 [2022-11-16 20:01:29,713 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 20:01:29,714 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 20:01:29,714 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 20:01:29,715 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 20:01:29,726 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:01:29" (1/1) ... [2022-11-16 20:01:29,727 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:01:29" (1/1) ... [2022-11-16 20:01:29,740 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:01:29" (1/1) ... [2022-11-16 20:01:29,744 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:01:29" (1/1) ... [2022-11-16 20:01:29,759 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:01:29" (1/1) ... [2022-11-16 20:01:29,774 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:01:29" (1/1) ... [2022-11-16 20:01:29,776 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:01:29" (1/1) ... [2022-11-16 20:01:29,778 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:01:29" (1/1) ... [2022-11-16 20:01:29,781 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 20:01:29,791 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 20:01:29,791 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 20:01:29,791 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 20:01:29,792 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:01:29" (1/1) ... [2022-11-16 20:01:29,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 20:01:29,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adcf3138-5c9e-48d5-be1c-da2c26df649e/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 20:01:29,839 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adcf3138-5c9e-48d5-be1c-da2c26df649e/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 20:01:29,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adcf3138-5c9e-48d5-be1c-da2c26df649e/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 20:01:29,892 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 20:01:29,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 20:01:30,071 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 20:01:30,073 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 20:01:30,495 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 20:01:30,504 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 20:01:30,504 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 20:01:30,507 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 08:01:30 BoogieIcfgContainer [2022-11-16 20:01:30,507 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 20:01:30,510 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 20:01:30,510 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 20:01:30,514 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 20:01:30,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 08:01:29" (1/3) ... [2022-11-16 20:01:30,516 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@454991f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:01:30, skipping insertion in model container [2022-11-16 20:01:30,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:01:29" (2/3) ... [2022-11-16 20:01:30,517 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@454991f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:01:30, skipping insertion in model container [2022-11-16 20:01:30,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 08:01:30" (3/3) ... [2022-11-16 20:01:30,519 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal54.c [2022-11-16 20:01:30,546 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 20:01:30,546 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 20:01:30,639 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 20:01:30,650 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;@5e94999a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 20:01:30,651 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 20:01:30,657 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:01:30,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-16 20:01:30,667 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:01:30,667 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-16 20:01:30,669 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 20:01:30,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:01:30,676 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-16 20:01:30,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-16 20:01:30,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1579522107] [2022-11-16 20:01:30,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:01:30,697 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 20:01:30,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adcf3138-5c9e-48d5-be1c-da2c26df649e/bin/utaipan-Xvt2sAort0/mathsat [2022-11-16 20:01:30,703 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adcf3138-5c9e-48d5-be1c-da2c26df649e/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 20:01:30,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adcf3138-5c9e-48d5-be1c-da2c26df649e/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-16 20:01:30,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:01:30,887 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-16 20:01:30,896 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 20:01:31,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 20:01:31,134 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 20:01:31,135 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-16 20:01:31,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1579522107] [2022-11-16 20:01:31,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1579522107] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:01:31,136 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 20:01:31,136 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 20:01:31,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101248762] [2022-11-16 20:01:31,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:01:31,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 20:01:31,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-16 20:01:31,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 20:01:31,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 20:01:31,195 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:01:31,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:01:31,287 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-16 20:01:31,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 20:01:31,291 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-16 20:01:31,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:01:31,301 INFO L225 Difference]: With dead ends: 20 [2022-11-16 20:01:31,301 INFO L226 Difference]: Without dead ends: 11 [2022-11-16 20:01:31,305 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 20:01:31,309 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 20:01:31,311 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 20:01:31,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-16 20:01:31,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-16 20:01:31,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:01:31,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-16 20:01:31,353 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-16 20:01:31,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:01:31,355 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-16 20:01:31,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:01:31,357 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-16 20:01:31,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-16 20:01:31,357 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:01:31,358 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-16 20:01:31,378 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adcf3138-5c9e-48d5-be1c-da2c26df649e/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-16 20:01:31,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adcf3138-5c9e-48d5-be1c-da2c26df649e/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 20:01:31,572 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 20:01:31,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:01:31,573 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-16 20:01:31,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-16 20:01:31,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [292657698] [2022-11-16 20:01:31,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:01:31,575 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 20:01:31,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adcf3138-5c9e-48d5-be1c-da2c26df649e/bin/utaipan-Xvt2sAort0/mathsat [2022-11-16 20:01:31,577 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adcf3138-5c9e-48d5-be1c-da2c26df649e/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 20:01:31,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adcf3138-5c9e-48d5-be1c-da2c26df649e/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-16 20:01:31,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:01:31,786 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 55 conjunts are in the unsatisfiable core [2022-11-16 20:01:31,792 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 20:01:32,734 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 20:01:32,735 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 20:01:37,276 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 20:01:37,277 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-16 20:01:37,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [292657698] [2022-11-16 20:01:37,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [292657698] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 20:01:37,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1549897555] [2022-11-16 20:01:37,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:01:37,278 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-16 20:01:37,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adcf3138-5c9e-48d5-be1c-da2c26df649e/bin/utaipan-Xvt2sAort0/cvc4 [2022-11-16 20:01:37,284 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adcf3138-5c9e-48d5-be1c-da2c26df649e/bin/utaipan-Xvt2sAort0/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-16 20:01:37,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adcf3138-5c9e-48d5-be1c-da2c26df649e/bin/utaipan-Xvt2sAort0/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2022-11-16 20:01:37,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:01:37,563 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 66 conjunts are in the unsatisfiable core [2022-11-16 20:01:37,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 20:01:38,154 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 20:01:38,155 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 20:01:40,502 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 20:01:40,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1549897555] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 20:01:40,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1131464805] [2022-11-16 20:01:40,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:01:40,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 20:01:40,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adcf3138-5c9e-48d5-be1c-da2c26df649e/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 20:01:40,507 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adcf3138-5c9e-48d5-be1c-da2c26df649e/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 20:01:40,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adcf3138-5c9e-48d5-be1c-da2c26df649e/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-16 20:01:40,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:01:40,657 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 57 conjunts are in the unsatisfiable core [2022-11-16 20:01:40,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 20:01:41,052 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 20:01:41,052 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 20:01:43,338 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 20:01:43,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1131464805] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 20:01:43,345 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-16 20:01:43,345 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 6, 5, 6, 6] total 14 [2022-11-16 20:01:43,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224112195] [2022-11-16 20:01:43,346 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-16 20:01:43,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 20:01:43,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-16 20:01:43,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 20:01:43,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2022-11-16 20:01:43,352 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 14 states, 14 states have (on average 1.7857142857142858) internal successors, (25), 14 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:01:43,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:01:43,550 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-11-16 20:01:43,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 20:01:43,552 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.7857142857142858) internal successors, (25), 14 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-16 20:01:43,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:01:43,553 INFO L225 Difference]: With dead ends: 16 [2022-11-16 20:01:43,553 INFO L226 Difference]: Without dead ends: 14 [2022-11-16 20:01:43,554 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 25 SyntacticMatches, 5 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2022-11-16 20:01:43,555 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 17 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 10 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 20:01:43,555 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 21 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 0 Unknown, 10 Unchecked, 0.1s Time] [2022-11-16 20:01:43,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-16 20:01:43,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-11-16 20:01:43,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:01:43,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-11-16 20:01:43,560 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-11-16 20:01:43,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:01:43,560 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-11-16 20:01:43,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.7857142857142858) internal successors, (25), 14 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:01:43,564 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-11-16 20:01:43,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-16 20:01:43,564 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:01:43,565 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-16 20:01:43,586 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adcf3138-5c9e-48d5-be1c-da2c26df649e/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-16 20:01:43,795 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adcf3138-5c9e-48d5-be1c-da2c26df649e/bin/utaipan-Xvt2sAort0/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2022-11-16 20:01:43,994 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adcf3138-5c9e-48d5-be1c-da2c26df649e/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-16 20:01:44,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adcf3138-5c9e-48d5-be1c-da2c26df649e/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adcf3138-5c9e-48d5-be1c-da2c26df649e/bin/utaipan-Xvt2sAort0/cvc4 --incremental --print-success --lang smt,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adcf3138-5c9e-48d5-be1c-da2c26df649e/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 20:01:44,189 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 20:01:44,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:01:44,190 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-11-16 20:01:44,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-16 20:01:44,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [594937177] [2022-11-16 20:01:44,191 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 20:01:44,192 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 20:01:44,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adcf3138-5c9e-48d5-be1c-da2c26df649e/bin/utaipan-Xvt2sAort0/mathsat [2022-11-16 20:01:44,193 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adcf3138-5c9e-48d5-be1c-da2c26df649e/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 20:01:44,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adcf3138-5c9e-48d5-be1c-da2c26df649e/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-16 20:01:44,385 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 20:01:44,385 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 20:01:44,394 INFO L263 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 118 conjunts are in the unsatisfiable core [2022-11-16 20:01:44,401 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 20:01:46,614 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 20:01:46,615 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 20:02:19,917 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 20:02:19,917 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-16 20:02:19,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [594937177] [2022-11-16 20:02:19,918 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [594937177] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 20:02:19,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1406672643] [2022-11-16 20:02:19,918 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 20:02:19,919 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-16 20:02:19,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adcf3138-5c9e-48d5-be1c-da2c26df649e/bin/utaipan-Xvt2sAort0/cvc4 [2022-11-16 20:02:19,923 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adcf3138-5c9e-48d5-be1c-da2c26df649e/bin/utaipan-Xvt2sAort0/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-16 20:02:19,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adcf3138-5c9e-48d5-be1c-da2c26df649e/bin/utaipan-Xvt2sAort0/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2022-11-16 20:02:20,291 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 20:02:20,292 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 20:02:20,301 INFO L263 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 114 conjunts are in the unsatisfiable core [2022-11-16 20:02:20,307 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 20:02:21,943 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 20:02:21,943 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 20:02:37,119 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 20:02:37,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1406672643] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 20:02:37,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1257786455] [2022-11-16 20:02:37,121 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 20:02:37,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 20:02:37,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adcf3138-5c9e-48d5-be1c-da2c26df649e/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 20:02:37,124 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adcf3138-5c9e-48d5-be1c-da2c26df649e/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 20:02:37,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adcf3138-5c9e-48d5-be1c-da2c26df649e/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-16 20:02:37,310 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 20:02:37,310 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 20:02:37,315 INFO L263 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 120 conjunts are in the unsatisfiable core [2022-11-16 20:02:37,320 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 20:02:38,866 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 20:02:38,866 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 20:02:57,444 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 20:02:57,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1257786455] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 20:02:57,445 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-16 20:02:57,445 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7, 7, 7, 7] total 20 [2022-11-16 20:02:57,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323132329] [2022-11-16 20:02:57,446 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-16 20:02:57,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-16 20:02:57,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-16 20:02:57,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-16 20:02:57,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=319, Unknown=0, NotChecked=0, Total=380 [2022-11-16 20:02:57,448 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 20 states, 20 states have (on average 1.8) internal successors, (36), 20 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:02:57,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:02:57,752 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2022-11-16 20:02:57,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-16 20:02:57,755 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 1.8) internal successors, (36), 20 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-16 20:02:57,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:02:57,756 INFO L225 Difference]: With dead ends: 19 [2022-11-16 20:02:57,756 INFO L226 Difference]: Without dead ends: 17 [2022-11-16 20:02:57,757 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 37 SyntacticMatches, 5 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 18.6s TimeCoverageRelationStatistics Valid=90, Invalid=416, Unknown=0, NotChecked=0, Total=506 [2022-11-16 20:02:57,758 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 11 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 37 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 20:02:57,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 33 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 13 Invalid, 0 Unknown, 37 Unchecked, 0.1s Time] [2022-11-16 20:02:57,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-16 20:02:57,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2022-11-16 20:02:57,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:02:57,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-11-16 20:02:57,765 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 11 [2022-11-16 20:02:57,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:02:57,766 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-11-16 20:02:57,766 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 1.8) internal successors, (36), 20 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:02:57,767 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-11-16 20:02:57,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-16 20:02:57,767 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:02:57,768 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1] [2022-11-16 20:02:57,779 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adcf3138-5c9e-48d5-be1c-da2c26df649e/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-16 20:02:57,976 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adcf3138-5c9e-48d5-be1c-da2c26df649e/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-16 20:02:58,174 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adcf3138-5c9e-48d5-be1c-da2c26df649e/bin/utaipan-Xvt2sAort0/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2022-11-16 20:02:58,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adcf3138-5c9e-48d5-be1c-da2c26df649e/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adcf3138-5c9e-48d5-be1c-da2c26df649e/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adcf3138-5c9e-48d5-be1c-da2c26df649e/bin/utaipan-Xvt2sAort0/cvc4 --incremental --print-success --lang smt [2022-11-16 20:02:58,371 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 20:02:58,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:02:58,372 INFO L85 PathProgramCache]: Analyzing trace with hash 1580781475, now seen corresponding path program 3 times [2022-11-16 20:02:58,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-16 20:02:58,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1085072799] [2022-11-16 20:02:58,373 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 20:02:58,373 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 20:02:58,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adcf3138-5c9e-48d5-be1c-da2c26df649e/bin/utaipan-Xvt2sAort0/mathsat [2022-11-16 20:02:58,380 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adcf3138-5c9e-48d5-be1c-da2c26df649e/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 20:02:58,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adcf3138-5c9e-48d5-be1c-da2c26df649e/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-16 20:02:58,553 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-16 20:02:58,554 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 20:02:58,561 INFO L263 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 143 conjunts are in the unsatisfiable core [2022-11-16 20:02:58,566 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 20:03:02,848 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-16 20:03:02,849 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 20:03:32,416 WARN L233 SmtUtils]: Spent 6.20s on a formula simplification. DAG size of input: 386 DAG size of output: 216 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:03:46,870 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-16 20:03:46,870 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-16 20:03:46,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1085072799] [2022-11-16 20:03:46,871 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1085072799] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 20:03:46,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [519388675] [2022-11-16 20:03:46,871 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 20:03:46,872 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-16 20:03:46,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adcf3138-5c9e-48d5-be1c-da2c26df649e/bin/utaipan-Xvt2sAort0/cvc4 [2022-11-16 20:03:46,873 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adcf3138-5c9e-48d5-be1c-da2c26df649e/bin/utaipan-Xvt2sAort0/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-16 20:03:46,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adcf3138-5c9e-48d5-be1c-da2c26df649e/bin/utaipan-Xvt2sAort0/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2022-11-16 20:03:47,241 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-16 20:03:47,241 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 20:03:47,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 140 conjunts are in the unsatisfiable core [2022-11-16 20:03:47,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 20:03:52,725 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-16 20:03:52,725 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 20:04:24,788 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-16 20:04:24,788 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [519388675] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 20:04:24,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [527229610] [2022-11-16 20:04:24,789 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 20:04:24,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 20:04:24,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adcf3138-5c9e-48d5-be1c-da2c26df649e/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 20:04:24,797 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adcf3138-5c9e-48d5-be1c-da2c26df649e/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 20:04:24,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adcf3138-5c9e-48d5-be1c-da2c26df649e/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-16 20:04:24,981 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-16 20:04:24,981 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 20:04:24,987 INFO L263 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 143 conjunts are in the unsatisfiable core [2022-11-16 20:04:24,991 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 20:04:28,563 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-16 20:04:28,563 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 20:05:18,093 WARN L233 SmtUtils]: Spent 6.95s on a formula simplification. DAG size of input: 458 DAG size of output: 143 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:05:20,542 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-16 20:05:20,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [527229610] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 20:05:20,543 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-16 20:05:20,543 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 7, 7, 8, 8] total 27 [2022-11-16 20:05:20,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984648908] [2022-11-16 20:05:20,543 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-16 20:05:20,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-11-16 20:05:20,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-16 20:05:20,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-11-16 20:05:20,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=144, Invalid=558, Unknown=0, NotChecked=0, Total=702 [2022-11-16 20:05:20,546 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 27 states, 27 states have (on average 1.6666666666666667) internal successors, (45), 27 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:05:21,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:05:21,264 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2022-11-16 20:05:21,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 20:05:21,265 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 1.6666666666666667) internal successors, (45), 27 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-11-16 20:05:21,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:05:21,265 INFO L225 Difference]: With dead ends: 15 [2022-11-16 20:05:21,266 INFO L226 Difference]: Without dead ends: 0 [2022-11-16 20:05:21,266 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 51 SyntacticMatches, 2 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 38.7s TimeCoverageRelationStatistics Valid=192, Invalid=678, Unknown=0, NotChecked=0, Total=870 [2022-11-16 20:05:21,267 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 19 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 20:05:21,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 13 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 19 Unchecked, 0.0s Time] [2022-11-16 20:05:21,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-16 20:05:21,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-16 20:05:21,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:05:21,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-16 20:05:21,270 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2022-11-16 20:05:21,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:05:21,270 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 20:05:21,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 1.6666666666666667) internal successors, (45), 27 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:05:21,271 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-16 20:05:21,271 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-16 20:05:21,274 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-16 20:05:21,283 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adcf3138-5c9e-48d5-be1c-da2c26df649e/bin/utaipan-Xvt2sAort0/cvc4 --incremental --print-success --lang smt (10)] Ended with exit code 0 [2022-11-16 20:05:21,484 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adcf3138-5c9e-48d5-be1c-da2c26df649e/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-16 20:05:21,688 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adcf3138-5c9e-48d5-be1c-da2c26df649e/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-16 20:05:21,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adcf3138-5c9e-48d5-be1c-da2c26df649e/bin/utaipan-Xvt2sAort0/cvc4 --incremental --print-success --lang smt,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adcf3138-5c9e-48d5-be1c-da2c26df649e/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adcf3138-5c9e-48d5-be1c-da2c26df649e/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 20:05:21,881 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-16 20:05:22,514 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-16 20:05:22,516 INFO L895 garLoopResultBuilder]: At program point L62-2(lines 62 190) the Hoare annotation is: (let ((.cse4 (= |ULTIMATE.start_main_~var_39~0#1| |ULTIMATE.start_main_~state_12~0#1|)) (.cse0 (= (_ bv1 8) |ULTIMATE.start_main_~mask_SORT_1~0#1|)) (.cse1 (= (_ bv1 8) |ULTIMATE.start_main_~var_39~0#1|)) (.cse2 (= (_ bv7 8) |ULTIMATE.start_main_~mask_SORT_5~0#1|)) (.cse3 (= (_ bv1 8) |ULTIMATE.start_main_~var_23~0#1|)) (.cse5 (= (_ bv0 8) |ULTIMATE.start_main_~state_18~0#1|)) (.cse6 (= (_ bv2 8) |ULTIMATE.start_main_~var_21~0#1|)) (.cse7 (= |ULTIMATE.start_main_~mask_SORT_26~0#1| (_ bv3 8))) (.cse8 (= |ULTIMATE.start_main_~var_15~0#1| (_ bv0 8))) (.cse9 (= |ULTIMATE.start_main_~var_11~0#1| (_ bv0 8)))) (or (and .cse0 (= |ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)) .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9) (and .cse0 (not (= |ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv0 32))) .cse1 .cse2 .cse3 .cse4 (= ((_ extract 7 0) (bvand (_ bv1 32) ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_1~0#1|))) |ULTIMATE.start_main_~state_18~0#1|) (let ((.cse11 ((_ zero_extend 24) |ULTIMATE.start_main_~var_21~0#1|)) (.cse12 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_5~0#1|))) (or (and (exists ((|ULTIMATE.start_main_~var_31_arg_1~0#1| (_ BitVec 8))) (let ((.cse10 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse12 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |ULTIMATE.start_main_~var_31_arg_1~0#1|)))))))) (and (= .cse10 .cse11) (= ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) .cse10))))) |ULTIMATE.start_main_~state_29~0#1|)))) (exists ((|ULTIMATE.start_main_~var_20_arg_2~0#1| (_ BitVec 8))) (let ((.cse13 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse12 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |ULTIMATE.start_main_~var_20_arg_2~0#1|)))))))) (and (= ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) .cse13))))) |ULTIMATE.start_main_~state_16~0#1|) (= ((_ zero_extend 24) |ULTIMATE.start_main_~var_23~0#1|) .cse13))))) (exists ((|ULTIMATE.start_main_~var_48_arg_1~0#1| (_ BitVec 8))) (let ((.cse14 ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |ULTIMATE.start_main_~var_48_arg_1~0#1|)))))))))))) (and (= .cse14 |ULTIMATE.start_main_~state_29~0#1|) (= .cse14 |ULTIMATE.start_main_~state_16~0#1|)))) (and (exists ((|ULTIMATE.start_main_~var_31_arg_1~0#1| (_ BitVec 8))) (let ((.cse15 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse12 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |ULTIMATE.start_main_~var_31_arg_1~0#1|)))))))) (and (= ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) .cse15))))) |ULTIMATE.start_main_~state_29~0#1|) (not (= .cse15 .cse11))))) (exists ((|ULTIMATE.start_main_~var_20_arg_2~0#1| (_ BitVec 8))) (let ((.cse16 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse12 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |ULTIMATE.start_main_~var_20_arg_2~0#1|)))))))) (and (not (= .cse11 .cse16)) (= ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) .cse16))))) |ULTIMATE.start_main_~state_16~0#1|))))))) .cse6 .cse7 .cse8 .cse9) (and .cse0 (= (_ bv0 8) |ULTIMATE.start_main_~state_16~0#1|) .cse1 .cse2 .cse3 (= |ULTIMATE.start_main_~var_11~0#1| |ULTIMATE.start_main_~state_12~0#1|) .cse5 .cse6 .cse7 .cse8 .cse9))) [2022-11-16 20:05:22,516 INFO L899 garLoopResultBuilder]: For program point L62-3(lines 62 190) no Hoare annotation was computed. [2022-11-16 20:05:22,516 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-16 20:05:22,516 INFO L895 garLoopResultBuilder]: At program point L191(lines 22 192) the Hoare annotation is: false [2022-11-16 20:05:22,517 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-16 20:05:22,517 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-16 20:05:22,517 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 20) no Hoare annotation was computed. [2022-11-16 20:05:22,517 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2022-11-16 20:05:22,517 INFO L899 garLoopResultBuilder]: For program point L20-1(line 20) no Hoare annotation was computed. [2022-11-16 20:05:22,517 INFO L899 garLoopResultBuilder]: For program point L20-3(line 20) no Hoare annotation was computed. [2022-11-16 20:05:22,521 INFO L444 BasicCegarLoop]: Path program histogram: [3, 1] [2022-11-16 20:05:22,523 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 20:05:22,534 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_31_arg_1~0#1,QUANTIFIED] [2022-11-16 20:05:22,535 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_31_arg_1~0#1,QUANTIFIED] [2022-11-16 20:05:22,536 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_20_arg_2~0#1,QUANTIFIED] [2022-11-16 20:05:22,536 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_20_arg_2~0#1,QUANTIFIED] [2022-11-16 20:05:22,536 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_48_arg_1~0#1,QUANTIFIED] [2022-11-16 20:05:22,537 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_48_arg_1~0#1,QUANTIFIED] [2022-11-16 20:05:22,537 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_31_arg_1~0#1,QUANTIFIED] [2022-11-16 20:05:22,537 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_31_arg_1~0#1,QUANTIFIED] [2022-11-16 20:05:22,538 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_20_arg_2~0#1,QUANTIFIED] [2022-11-16 20:05:22,538 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_20_arg_2~0#1,QUANTIFIED] [2022-11-16 20:05:22,552 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_31_arg_1~0#1,QUANTIFIED] [2022-11-16 20:05:22,556 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_31_arg_1~0#1,QUANTIFIED] [2022-11-16 20:05:22,556 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_20_arg_2~0#1,QUANTIFIED] [2022-11-16 20:05:22,556 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_20_arg_2~0#1,QUANTIFIED] [2022-11-16 20:05:22,557 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_48_arg_1~0#1,QUANTIFIED] [2022-11-16 20:05:22,557 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_48_arg_1~0#1,QUANTIFIED] [2022-11-16 20:05:22,557 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_31_arg_1~0#1,QUANTIFIED] [2022-11-16 20:05:22,558 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_31_arg_1~0#1,QUANTIFIED] [2022-11-16 20:05:22,563 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_20_arg_2~0#1,QUANTIFIED] [2022-11-16 20:05:22,563 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_20_arg_2~0#1,QUANTIFIED] [2022-11-16 20:05:22,567 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 08:05:22 BoogieIcfgContainer [2022-11-16 20:05:22,579 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 20:05:22,580 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 20:05:22,580 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 20:05:22,581 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 20:05:22,581 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 08:01:30" (3/4) ... [2022-11-16 20:05:22,585 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-16 20:05:22,598 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-16 20:05:22,602 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-16 20:05:22,602 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 20:05:22,638 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((1bv8 == mask_SORT_1 && cond == 1bv32) && 1bv8 == var_39) && 7bv8 == mask_SORT_5) && 1bv8 == var_23) && var_39 == state_12) && 0bv8 == state_18) && 2bv8 == var_21) && mask_SORT_26 == 3bv8) && var_15 == 0bv8) && var_11 == 0bv8) || (((((((((((1bv8 == mask_SORT_1 && !(cond == 0bv32)) && 1bv8 == var_39) && 7bv8 == mask_SORT_5) && 1bv8 == var_23) && var_39 == state_12) && ~bvand32(1bv32, ~zero_extendFrom8To32(mask_SORT_1))[7:0] == state_18) && ((((\exists ULTIMATE.start_main_~var_31_arg_1~0#1 : bv8 :: ~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(mask_SORT_5), ~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_31_arg_1~0#1)[7:0]))[7:0]) == ~zero_extendFrom8To32(var_21) && ~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(mask_SORT_5), ~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_31_arg_1~0#1)[7:0]))[7:0])[7:0])[7:0])[7:0] == state_29) && (\exists ULTIMATE.start_main_~var_20_arg_2~0#1 : bv8 :: ~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(mask_SORT_5), ~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_20_arg_2~0#1)[7:0]))[7:0])[7:0])[7:0])[7:0] == state_16 && ~zero_extendFrom8To32(var_23) == ~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(mask_SORT_5), ~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_20_arg_2~0#1)[7:0]))[7:0]))) || (\exists ULTIMATE.start_main_~var_48_arg_1~0#1 : bv8 :: ~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_48_arg_1~0#1)[7:0])[7:0])[7:0])[7:0])[7:0] == state_29 && ~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_48_arg_1~0#1)[7:0])[7:0])[7:0])[7:0])[7:0] == state_16)) || ((\exists ULTIMATE.start_main_~var_31_arg_1~0#1 : bv8 :: ~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(mask_SORT_5), ~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_31_arg_1~0#1)[7:0]))[7:0])[7:0])[7:0])[7:0] == state_29 && !(~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(mask_SORT_5), ~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_31_arg_1~0#1)[7:0]))[7:0]) == ~zero_extendFrom8To32(var_21))) && (\exists ULTIMATE.start_main_~var_20_arg_2~0#1 : bv8 :: !(~zero_extendFrom8To32(var_21) == ~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(mask_SORT_5), ~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_20_arg_2~0#1)[7:0]))[7:0])) && ~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(mask_SORT_5), ~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_20_arg_2~0#1)[7:0]))[7:0])[7:0])[7:0])[7:0] == state_16)))) && 2bv8 == var_21) && mask_SORT_26 == 3bv8) && var_15 == 0bv8) && var_11 == 0bv8)) || ((((((((((1bv8 == mask_SORT_1 && 0bv8 == state_16) && 1bv8 == var_39) && 7bv8 == mask_SORT_5) && 1bv8 == var_23) && var_11 == state_12) && 0bv8 == state_18) && 2bv8 == var_21) && mask_SORT_26 == 3bv8) && var_15 == 0bv8) && var_11 == 0bv8) [2022-11-16 20:05:22,674 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adcf3138-5c9e-48d5-be1c-da2c26df649e/bin/utaipan-Xvt2sAort0/witness.graphml [2022-11-16 20:05:22,675 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 20:05:22,675 INFO L158 Benchmark]: Toolchain (without parser) took 233514.67ms. Allocated memory was 69.2MB in the beginning and 318.8MB in the end (delta: 249.6MB). Free memory was 50.8MB in the beginning and 267.0MB in the end (delta: -216.2MB). Peak memory consumption was 35.1MB. Max. memory is 16.1GB. [2022-11-16 20:05:22,676 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 69.2MB. Free memory is still 50.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 20:05:22,676 INFO L158 Benchmark]: CACSL2BoogieTranslator took 470.29ms. Allocated memory is still 69.2MB. Free memory was 50.7MB in the beginning and 50.4MB in the end (delta: 334.3kB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-16 20:05:22,677 INFO L158 Benchmark]: Boogie Procedure Inliner took 79.33ms. Allocated memory is still 69.2MB. Free memory was 50.4MB in the beginning and 48.0MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-16 20:05:22,677 INFO L158 Benchmark]: Boogie Preprocessor took 75.77ms. Allocated memory is still 69.2MB. Free memory was 48.0MB in the beginning and 46.3MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 20:05:22,678 INFO L158 Benchmark]: RCFGBuilder took 716.78ms. Allocated memory was 69.2MB in the beginning and 86.0MB in the end (delta: 16.8MB). Free memory was 46.3MB in the beginning and 68.3MB in the end (delta: -22.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-16 20:05:22,678 INFO L158 Benchmark]: TraceAbstraction took 232069.67ms. Allocated memory was 86.0MB in the beginning and 318.8MB in the end (delta: 232.8MB). Free memory was 67.5MB in the beginning and 271.2MB in the end (delta: -203.7MB). Peak memory consumption was 199.6MB. Max. memory is 16.1GB. [2022-11-16 20:05:22,679 INFO L158 Benchmark]: Witness Printer took 94.48ms. Allocated memory is still 318.8MB. Free memory was 271.2MB in the beginning and 267.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-16 20:05:22,681 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 69.2MB. Free memory is still 50.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 470.29ms. Allocated memory is still 69.2MB. Free memory was 50.7MB in the beginning and 50.4MB in the end (delta: 334.3kB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 79.33ms. Allocated memory is still 69.2MB. Free memory was 50.4MB in the beginning and 48.0MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 75.77ms. Allocated memory is still 69.2MB. Free memory was 48.0MB in the beginning and 46.3MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 716.78ms. Allocated memory was 69.2MB in the beginning and 86.0MB in the end (delta: 16.8MB). Free memory was 46.3MB in the beginning and 68.3MB in the end (delta: -22.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 232069.67ms. Allocated memory was 86.0MB in the beginning and 318.8MB in the end (delta: 232.8MB). Free memory was 67.5MB in the beginning and 271.2MB in the end (delta: -203.7MB). Peak memory consumption was 199.6MB. Max. memory is 16.1GB. * Witness Printer took 94.48ms. Allocated memory is still 318.8MB. Free memory was 271.2MB in the beginning and 267.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_31_arg_1~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_31_arg_1~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_20_arg_2~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_20_arg_2~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_48_arg_1~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_48_arg_1~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_31_arg_1~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_31_arg_1~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_20_arg_2~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_20_arg_2~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_31_arg_1~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_31_arg_1~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_20_arg_2~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_20_arg_2~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_48_arg_1~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_48_arg_1~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_31_arg_1~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_31_arg_1~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_20_arg_2~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_20_arg_2~0#1,QUANTIFIED] * 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: 231.9s, OverallIterations: 4, TraceHistogramMax: 4, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 32 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 32 mSDsluCounter, 80 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 66 IncrementalHoareTripleChecker+Unchecked, 65 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 36 IncrementalHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 15 mSDtfsCounter, 36 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 194 GetRequests, 115 SyntacticMatches, 12 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 504 ImplicationChecksByTransitivity, 60.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=3, InterpolantAutomatonStates: 31, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 6 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 6 NumberOfFragments, 262 HoareAnnotationTreeSize, 2 FomulaSimplifications, 348 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 80 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 225.3s InterpolantComputationTime, 104 NumberOfCodeBlocks, 95 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 184 ConstructedInterpolants, 81 QuantifiedInterpolants, 36525 SizeOfPredicates, 1085 NumberOfNonLiveVariables, 2480 ConjunctsInSsa, 972 ConjunctsInUnsatCore, 19 InterpolantComputations, 1 PerfectInterpolantSequences, 42/144 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 62]: Loop Invariant [2022-11-16 20:05:22,694 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_31_arg_1~0#1,QUANTIFIED] [2022-11-16 20:05:22,694 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_31_arg_1~0#1,QUANTIFIED] [2022-11-16 20:05:22,694 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_20_arg_2~0#1,QUANTIFIED] [2022-11-16 20:05:22,695 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_20_arg_2~0#1,QUANTIFIED] [2022-11-16 20:05:22,695 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_48_arg_1~0#1,QUANTIFIED] [2022-11-16 20:05:22,695 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_48_arg_1~0#1,QUANTIFIED] [2022-11-16 20:05:22,695 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_31_arg_1~0#1,QUANTIFIED] [2022-11-16 20:05:22,696 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_31_arg_1~0#1,QUANTIFIED] [2022-11-16 20:05:22,696 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_20_arg_2~0#1,QUANTIFIED] [2022-11-16 20:05:22,696 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_20_arg_2~0#1,QUANTIFIED] [2022-11-16 20:05:22,698 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_31_arg_1~0#1,QUANTIFIED] [2022-11-16 20:05:22,699 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_31_arg_1~0#1,QUANTIFIED] [2022-11-16 20:05:22,699 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_20_arg_2~0#1,QUANTIFIED] [2022-11-16 20:05:22,699 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_20_arg_2~0#1,QUANTIFIED] [2022-11-16 20:05:22,699 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_48_arg_1~0#1,QUANTIFIED] [2022-11-16 20:05:22,700 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_48_arg_1~0#1,QUANTIFIED] [2022-11-16 20:05:22,700 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_31_arg_1~0#1,QUANTIFIED] [2022-11-16 20:05:22,700 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_31_arg_1~0#1,QUANTIFIED] [2022-11-16 20:05:22,701 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_20_arg_2~0#1,QUANTIFIED] [2022-11-16 20:05:22,701 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_20_arg_2~0#1,QUANTIFIED] Derived loop invariant: (((((((((((1bv8 == mask_SORT_1 && cond == 1bv32) && 1bv8 == var_39) && 7bv8 == mask_SORT_5) && 1bv8 == var_23) && var_39 == state_12) && 0bv8 == state_18) && 2bv8 == var_21) && mask_SORT_26 == 3bv8) && var_15 == 0bv8) && var_11 == 0bv8) || (((((((((((1bv8 == mask_SORT_1 && !(cond == 0bv32)) && 1bv8 == var_39) && 7bv8 == mask_SORT_5) && 1bv8 == var_23) && var_39 == state_12) && ~bvand32(1bv32, ~zero_extendFrom8To32(mask_SORT_1))[7:0] == state_18) && ((((\exists ULTIMATE.start_main_~var_31_arg_1~0#1 : bv8 :: ~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(mask_SORT_5), ~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_31_arg_1~0#1)[7:0]))[7:0]) == ~zero_extendFrom8To32(var_21) && ~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(mask_SORT_5), ~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_31_arg_1~0#1)[7:0]))[7:0])[7:0])[7:0])[7:0] == state_29) && (\exists ULTIMATE.start_main_~var_20_arg_2~0#1 : bv8 :: ~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(mask_SORT_5), ~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_20_arg_2~0#1)[7:0]))[7:0])[7:0])[7:0])[7:0] == state_16 && ~zero_extendFrom8To32(var_23) == ~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(mask_SORT_5), ~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_20_arg_2~0#1)[7:0]))[7:0]))) || (\exists ULTIMATE.start_main_~var_48_arg_1~0#1 : bv8 :: ~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_48_arg_1~0#1)[7:0])[7:0])[7:0])[7:0])[7:0] == state_29 && ~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_48_arg_1~0#1)[7:0])[7:0])[7:0])[7:0])[7:0] == state_16)) || ((\exists ULTIMATE.start_main_~var_31_arg_1~0#1 : bv8 :: ~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(mask_SORT_5), ~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_31_arg_1~0#1)[7:0]))[7:0])[7:0])[7:0])[7:0] == state_29 && !(~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(mask_SORT_5), ~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_31_arg_1~0#1)[7:0]))[7:0]) == ~zero_extendFrom8To32(var_21))) && (\exists ULTIMATE.start_main_~var_20_arg_2~0#1 : bv8 :: !(~zero_extendFrom8To32(var_21) == ~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(mask_SORT_5), ~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_20_arg_2~0#1)[7:0]))[7:0])) && ~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(mask_SORT_5), ~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_20_arg_2~0#1)[7:0]))[7:0])[7:0])[7:0])[7:0] == state_16)))) && 2bv8 == var_21) && mask_SORT_26 == 3bv8) && var_15 == 0bv8) && var_11 == 0bv8)) || ((((((((((1bv8 == mask_SORT_1 && 0bv8 == state_16) && 1bv8 == var_39) && 7bv8 == mask_SORT_5) && 1bv8 == var_23) && var_11 == state_12) && 0bv8 == state_18) && 2bv8 == var_21) && mask_SORT_26 == 3bv8) && var_15 == 0bv8) && var_11 == 0bv8) RESULT: Ultimate proved your program to be correct! [2022-11-16 20:05:22,779 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adcf3138-5c9e-48d5-be1c-da2c26df649e/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE