./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p09.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a0b7cc-94bd-4f33-80ac-fefae1c26542/bin/utaipan-Xvt2sAort0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a0b7cc-94bd-4f33-80ac-fefae1c26542/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_08a0b7cc-94bd-4f33-80ac-fefae1c26542/bin/utaipan-Xvt2sAort0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a0b7cc-94bd-4f33-80ac-fefae1c26542/bin/utaipan-Xvt2sAort0/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p09.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a0b7cc-94bd-4f33-80ac-fefae1c26542/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_08a0b7cc-94bd-4f33-80ac-fefae1c26542/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 d3cffd3df6054c12dbcd2cadadc764aeec3d6f47b1320e00f0a0148f3e6de8bc --- 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 19:53:47,998 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 19:53:48,000 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 19:53:48,030 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 19:53:48,031 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 19:53:48,032 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 19:53:48,033 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 19:53:48,035 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 19:53:48,037 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 19:53:48,038 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 19:53:48,039 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 19:53:48,040 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 19:53:48,041 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 19:53:48,042 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 19:53:48,043 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 19:53:48,044 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 19:53:48,045 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 19:53:48,046 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 19:53:48,048 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 19:53:48,050 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 19:53:48,052 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 19:53:48,058 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 19:53:48,060 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 19:53:48,061 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 19:53:48,065 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 19:53:48,065 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 19:53:48,065 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 19:53:48,067 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 19:53:48,067 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 19:53:48,068 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 19:53:48,069 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 19:53:48,070 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 19:53:48,079 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 19:53:48,080 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 19:53:48,081 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 19:53:48,082 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 19:53:48,083 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 19:53:48,083 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 19:53:48,083 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 19:53:48,084 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 19:53:48,085 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 19:53:48,088 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a0b7cc-94bd-4f33-80ac-fefae1c26542/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-16 19:53:48,141 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 19:53:48,141 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 19:53:48,142 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 19:53:48,142 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 19:53:48,143 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 19:53:48,143 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 19:53:48,144 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-16 19:53:48,144 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-16 19:53:48,144 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-16 19:53:48,144 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-16 19:53:48,145 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-16 19:53:48,146 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-16 19:53:48,146 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-16 19:53:48,146 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-16 19:53:48,146 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-16 19:53:48,146 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-16 19:53:48,147 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-16 19:53:48,147 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-16 19:53:48,148 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 19:53:48,148 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 19:53:48,148 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 19:53:48,148 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 19:53:48,148 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 19:53:48,150 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 19:53:48,150 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 19:53:48,151 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 19:53:48,151 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 19:53:48,151 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 19:53:48,151 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 19:53:48,151 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 19:53:48,152 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 19:53:48,152 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-16 19:53:48,153 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 19:53:48,153 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 19:53:48,153 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-16 19:53:48,153 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 19:53:48,153 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 19:53:48,154 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-16 19:53:48,154 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_08a0b7cc-94bd-4f33-80ac-fefae1c26542/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a0b7cc-94bd-4f33-80ac-fefae1c26542/bin/utaipan-Xvt2sAort0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d3cffd3df6054c12dbcd2cadadc764aeec3d6f47b1320e00f0a0148f3e6de8bc [2022-11-16 19:53:48,463 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 19:53:48,496 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 19:53:48,499 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 19:53:48,501 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 19:53:48,502 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 19:53:48,503 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a0b7cc-94bd-4f33-80ac-fefae1c26542/bin/utaipan-Xvt2sAort0/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p09.c [2022-11-16 19:53:48,591 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a0b7cc-94bd-4f33-80ac-fefae1c26542/bin/utaipan-Xvt2sAort0/data/2b272af4b/acfd979c3ab741dfa835fc58e2cef7ed/FLAG3e23ed277 [2022-11-16 19:53:49,156 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 19:53:49,161 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a0b7cc-94bd-4f33-80ac-fefae1c26542/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p09.c [2022-11-16 19:53:49,171 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a0b7cc-94bd-4f33-80ac-fefae1c26542/bin/utaipan-Xvt2sAort0/data/2b272af4b/acfd979c3ab741dfa835fc58e2cef7ed/FLAG3e23ed277 [2022-11-16 19:53:49,447 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a0b7cc-94bd-4f33-80ac-fefae1c26542/bin/utaipan-Xvt2sAort0/data/2b272af4b/acfd979c3ab741dfa835fc58e2cef7ed [2022-11-16 19:53:49,449 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 19:53:49,451 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 19:53:49,453 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 19:53:49,453 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 19:53:49,457 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 19:53:49,458 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:53:49" (1/1) ... [2022-11-16 19:53:49,459 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b95f5ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:53:49, skipping insertion in model container [2022-11-16 19:53:49,460 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:53:49" (1/1) ... [2022-11-16 19:53:49,468 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 19:53:49,494 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 19:53:49,699 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_08a0b7cc-94bd-4f33-80ac-fefae1c26542/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p09.c[1107,1120] [2022-11-16 19:53:49,835 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 19:53:49,839 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 19:53:49,852 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_08a0b7cc-94bd-4f33-80ac-fefae1c26542/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p09.c[1107,1120] [2022-11-16 19:53:49,928 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 19:53:49,947 INFO L208 MainTranslator]: Completed translation [2022-11-16 19:53:49,948 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:53:49 WrapperNode [2022-11-16 19:53:49,948 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 19:53:49,950 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 19:53:49,950 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 19:53:49,950 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 19:53:49,959 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:53:49" (1/1) ... [2022-11-16 19:53:49,981 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:53:49" (1/1) ... [2022-11-16 19:53:50,032 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 281 [2022-11-16 19:53:50,041 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 19:53:50,042 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 19:53:50,043 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 19:53:50,043 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 19:53:50,055 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:53:49" (1/1) ... [2022-11-16 19:53:50,056 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:53:49" (1/1) ... [2022-11-16 19:53:50,060 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:53:49" (1/1) ... [2022-11-16 19:53:50,060 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:53:49" (1/1) ... [2022-11-16 19:53:50,072 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:53:49" (1/1) ... [2022-11-16 19:53:50,092 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:53:49" (1/1) ... [2022-11-16 19:53:50,094 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:53:49" (1/1) ... [2022-11-16 19:53:50,095 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:53:49" (1/1) ... [2022-11-16 19:53:50,099 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 19:53:50,100 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 19:53:50,100 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 19:53:50,100 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 19:53:50,101 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:53:49" (1/1) ... [2022-11-16 19:53:50,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 19:53:50,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a0b7cc-94bd-4f33-80ac-fefae1c26542/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 19:53:50,161 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a0b7cc-94bd-4f33-80ac-fefae1c26542/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 19:53:50,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a0b7cc-94bd-4f33-80ac-fefae1c26542/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 19:53:50,216 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 19:53:50,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 19:53:50,373 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 19:53:50,376 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 19:53:50,811 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 19:53:51,180 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 19:53:51,181 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 19:53:51,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 07:53:51 BoogieIcfgContainer [2022-11-16 19:53:51,185 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 19:53:51,190 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 19:53:51,190 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 19:53:51,194 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 19:53:51,195 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 07:53:49" (1/3) ... [2022-11-16 19:53:51,196 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@567a886 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:53:51, skipping insertion in model container [2022-11-16 19:53:51,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:53:49" (2/3) ... [2022-11-16 19:53:51,196 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@567a886 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:53:51, skipping insertion in model container [2022-11-16 19:53:51,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 07:53:51" (3/3) ... [2022-11-16 19:53:51,201 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p09.c [2022-11-16 19:53:51,220 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 19:53:51,220 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 19:53:51,284 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 19:53:51,292 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;@28ff0047, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 19:53:51,292 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 19:53:51,297 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 19:53:51,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-16 19:53:51,304 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:53:51,305 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-16 19:53:51,306 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 19:53:51,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:53:51,312 INFO L85 PathProgramCache]: Analyzing trace with hash 4841166, now seen corresponding path program 1 times [2022-11-16 19:53:51,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:53:51,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401975624] [2022-11-16 19:53:51,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:53:51,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:53:51,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 19:53:51,605 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 19:53:51,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 19:53:51,735 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-16 19:53:51,737 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-16 19:53:51,739 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-16 19:53:51,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 19:53:51,746 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-16 19:53:51,750 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 19:53:51,771 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-16 19:53:51,780 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 07:53:51 BoogieIcfgContainer [2022-11-16 19:53:51,781 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 19:53:51,781 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 19:53:51,781 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 19:53:51,782 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 19:53:51,782 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 07:53:51" (3/4) ... [2022-11-16 19:53:51,786 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-16 19:53:51,786 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 19:53:51,788 INFO L158 Benchmark]: Toolchain (without parser) took 2336.61ms. Allocated memory is still 123.7MB. Free memory was 90.5MB in the beginning and 92.8MB in the end (delta: -2.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 19:53:51,788 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 100.7MB. Free memory was 74.8MB in the beginning and 74.8MB in the end (delta: 31.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 19:53:51,789 INFO L158 Benchmark]: CACSL2BoogieTranslator took 495.60ms. Allocated memory is still 123.7MB. Free memory was 90.3MB in the beginning and 97.6MB in the end (delta: -7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-16 19:53:51,790 INFO L158 Benchmark]: Boogie Procedure Inliner took 91.89ms. Allocated memory is still 123.7MB. Free memory was 97.6MB in the beginning and 94.7MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 19:53:51,791 INFO L158 Benchmark]: Boogie Preprocessor took 56.96ms. Allocated memory is still 123.7MB. Free memory was 94.7MB in the beginning and 92.5MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 19:53:51,791 INFO L158 Benchmark]: RCFGBuilder took 1084.79ms. Allocated memory is still 123.7MB. Free memory was 92.5MB in the beginning and 77.1MB in the end (delta: 15.5MB). Peak memory consumption was 37.1MB. Max. memory is 16.1GB. [2022-11-16 19:53:51,792 INFO L158 Benchmark]: TraceAbstraction took 590.70ms. Allocated memory is still 123.7MB. Free memory was 76.5MB in the beginning and 92.8MB in the end (delta: -16.3MB). Peak memory consumption was 25.4MB. Max. memory is 16.1GB. [2022-11-16 19:53:51,792 INFO L158 Benchmark]: Witness Printer took 5.19ms. Allocated memory is still 123.7MB. Free memory is still 92.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 19:53:51,796 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 100.7MB. Free memory was 74.8MB in the beginning and 74.8MB in the end (delta: 31.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 495.60ms. Allocated memory is still 123.7MB. Free memory was 90.3MB in the beginning and 97.6MB in the end (delta: -7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 91.89ms. Allocated memory is still 123.7MB. Free memory was 97.6MB in the beginning and 94.7MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.96ms. Allocated memory is still 123.7MB. Free memory was 94.7MB in the beginning and 92.5MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1084.79ms. Allocated memory is still 123.7MB. Free memory was 92.5MB in the beginning and 77.1MB in the end (delta: 15.5MB). Peak memory consumption was 37.1MB. Max. memory is 16.1GB. * TraceAbstraction took 590.70ms. Allocated memory is still 123.7MB. Free memory was 76.5MB in the beginning and 92.8MB in the end (delta: -16.3MB). Peak memory consumption was 25.4MB. Max. memory is 16.1GB. * Witness Printer took 5.19ms. Allocated memory is still 123.7MB. Free memory is still 92.8MB. 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 133, overapproximation of bitwiseComplement at line 135, overapproximation of bitwiseAnd at line 120. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L28] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 8); [L29] const SORT_3 msb_SORT_3 = (SORT_3)1 << (8 - 1); [L31] const SORT_10 mask_SORT_10 = (SORT_10)-1 >> (sizeof(SORT_10) * 8 - 32); [L32] const SORT_10 msb_SORT_10 = (SORT_10)1 << (32 - 1); [L34] const SORT_31 mask_SORT_31 = (SORT_31)-1 >> (sizeof(SORT_31) * 8 - 4); [L35] const SORT_31 msb_SORT_31 = (SORT_31)1 << (4 - 1); [L37] const SORT_67 mask_SORT_67 = (SORT_67)-1 >> (sizeof(SORT_67) * 8 - 10); [L38] const SORT_67 msb_SORT_67 = (SORT_67)1 << (10 - 1); [L40] const SORT_1 var_7 = 0; [L41] const SORT_10 var_12 = 0; [L42] const SORT_1 var_21 = 1; [L44] SORT_1 input_2; [L45] SORT_3 input_4; [L46] SORT_1 input_5; [L47] SORT_1 input_6; [L48] SORT_1 input_29; [L49] SORT_31 input_32; [L50] SORT_31 input_34; [L51] SORT_1 input_36; [L52] SORT_1 input_38; [L53] SORT_1 input_42; [L54] SORT_1 input_44; [L55] SORT_1 input_46; [L56] SORT_1 input_48; [L57] SORT_1 input_50; [L58] SORT_3 input_52; [L59] SORT_1 input_55; [L60] SORT_1 input_59; [L61] SORT_1 input_63; [L62] SORT_1 input_65; [L63] SORT_67 input_68; [L64] SORT_1 input_70; [L65] SORT_1 input_74; [L66] SORT_1 input_81; [L67] SORT_1 input_87; [L69] SORT_1 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L70] SORT_1 state_14 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L71] SORT_1 state_25 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L72] SORT_1 state_27 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L73] SORT_1 state_40 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L74] SORT_1 state_57 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L75] SORT_1 state_61 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L77] SORT_1 init_9_arg_1 = var_7; [L78] state_8 = init_9_arg_1 [L79] SORT_1 init_15_arg_1 = var_7; [L80] state_14 = init_15_arg_1 [L81] SORT_1 init_26_arg_1 = var_7; [L82] state_25 = init_26_arg_1 [L83] SORT_1 init_28_arg_1 = var_7; [L84] state_27 = init_28_arg_1 [L85] SORT_1 init_41_arg_1 = var_7; [L86] state_40 = init_41_arg_1 [L87] SORT_1 init_58_arg_1 = var_7; [L88] state_57 = init_58_arg_1 [L89] SORT_1 init_62_arg_1 = var_7; [L90] state_61 = init_62_arg_1 VAL [init_15_arg_1=0, init_26_arg_1=0, init_28_arg_1=0, init_41_arg_1=0, init_58_arg_1=0, init_62_arg_1=0, init_9_arg_1=0, mask_SORT_1=1, mask_SORT_10=4294967295, mask_SORT_3=255, mask_SORT_31=15, mask_SORT_67=1023, msb_SORT_1=1, msb_SORT_10=2147483648, msb_SORT_3=128, msb_SORT_31=8, msb_SORT_67=512, state_14=0, state_25=0, state_27=0, state_40=0, state_57=0, state_61=0, state_8=0, var_12=0, var_21=1, var_7=0] [L93] input_2 = __VERIFIER_nondet_uchar() [L94] input_4 = __VERIFIER_nondet_uchar() [L95] input_5 = __VERIFIER_nondet_uchar() [L96] input_6 = __VERIFIER_nondet_uchar() [L97] input_29 = __VERIFIER_nondet_uchar() [L98] input_32 = __VERIFIER_nondet_uchar() [L99] input_34 = __VERIFIER_nondet_uchar() [L100] input_36 = __VERIFIER_nondet_uchar() [L101] input_38 = __VERIFIER_nondet_uchar() [L102] input_42 = __VERIFIER_nondet_uchar() [L103] input_44 = __VERIFIER_nondet_uchar() [L104] input_46 = __VERIFIER_nondet_uchar() [L105] input_48 = __VERIFIER_nondet_uchar() [L106] input_50 = __VERIFIER_nondet_uchar() [L107] input_52 = __VERIFIER_nondet_uchar() [L108] input_55 = __VERIFIER_nondet_uchar() [L109] input_59 = __VERIFIER_nondet_uchar() [L110] input_63 = __VERIFIER_nondet_uchar() [L111] input_65 = __VERIFIER_nondet_uchar() [L112] input_68 = __VERIFIER_nondet_ushort() [L113] input_70 = __VERIFIER_nondet_uchar() [L114] input_74 = __VERIFIER_nondet_uchar() [L115] input_81 = __VERIFIER_nondet_uchar() [L116] input_87 = __VERIFIER_nondet_uchar() [L119] SORT_1 var_11_arg_0 = state_8; [L120] var_11_arg_0 = var_11_arg_0 & mask_SORT_1 [L121] SORT_10 var_11 = var_11_arg_0; [L122] SORT_10 var_13_arg_0 = var_11; [L123] SORT_10 var_13_arg_1 = var_12; [L124] SORT_1 var_13 = var_13_arg_0 == var_13_arg_1; [L125] SORT_1 var_16_arg_0 = state_14; [L126] var_16_arg_0 = var_16_arg_0 & mask_SORT_1 [L127] SORT_10 var_16 = var_16_arg_0; [L128] SORT_10 var_17_arg_0 = var_16; [L129] SORT_10 var_17_arg_1 = var_12; [L130] SORT_1 var_17 = var_17_arg_0 == var_17_arg_1; [L131] SORT_1 var_18_arg_0 = var_13; [L132] SORT_1 var_18_arg_1 = var_17; [L133] SORT_1 var_18 = var_18_arg_0 | var_18_arg_1; [L134] SORT_1 var_22_arg_0 = var_18; [L135] SORT_1 var_22 = ~var_22_arg_0; [L136] SORT_1 var_23_arg_0 = var_21; [L137] SORT_1 var_23_arg_1 = var_22; [L138] SORT_1 var_23 = var_23_arg_0 & var_23_arg_1; [L139] var_23 = var_23 & mask_SORT_1 [L140] SORT_1 bad_24_arg_0 = var_23; [L141] CALL __VERIFIER_assert(!(bad_24_arg_0)) [L20] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L20] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-16 19:53:51,836 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a0b7cc-94bd-4f33-80ac-fefae1c26542/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a0b7cc-94bd-4f33-80ac-fefae1c26542/bin/utaipan-Xvt2sAort0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a0b7cc-94bd-4f33-80ac-fefae1c26542/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_08a0b7cc-94bd-4f33-80ac-fefae1c26542/bin/utaipan-Xvt2sAort0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a0b7cc-94bd-4f33-80ac-fefae1c26542/bin/utaipan-Xvt2sAort0/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p09.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a0b7cc-94bd-4f33-80ac-fefae1c26542/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_08a0b7cc-94bd-4f33-80ac-fefae1c26542/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 d3cffd3df6054c12dbcd2cadadc764aeec3d6f47b1320e00f0a0148f3e6de8bc --- 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 19:53:54,381 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 19:53:54,385 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 19:53:54,429 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 19:53:54,429 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 19:53:54,434 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 19:53:54,437 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 19:53:54,442 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 19:53:54,445 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 19:53:54,453 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 19:53:54,454 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 19:53:54,456 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 19:53:54,456 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 19:53:54,457 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 19:53:54,458 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 19:53:54,460 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 19:53:54,460 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 19:53:54,461 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 19:53:54,463 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 19:53:54,465 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 19:53:54,469 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 19:53:54,472 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 19:53:54,474 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 19:53:54,476 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 19:53:54,490 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 19:53:54,490 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 19:53:54,491 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 19:53:54,492 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 19:53:54,492 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 19:53:54,493 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 19:53:54,493 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 19:53:54,494 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 19:53:54,495 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 19:53:54,496 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 19:53:54,497 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 19:53:54,497 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 19:53:54,503 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 19:53:54,504 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 19:53:54,504 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 19:53:54,507 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 19:53:54,507 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 19:53:54,517 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a0b7cc-94bd-4f33-80ac-fefae1c26542/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-16 19:53:54,576 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 19:53:54,576 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 19:53:54,577 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 19:53:54,578 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 19:53:54,579 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 19:53:54,579 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 19:53:54,579 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-16 19:53:54,579 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-16 19:53:54,580 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-16 19:53:54,580 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-16 19:53:54,581 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-16 19:53:54,581 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-16 19:53:54,583 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 19:53:54,583 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 19:53:54,583 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 19:53:54,584 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 19:53:54,584 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 19:53:54,584 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-16 19:53:54,584 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-16 19:53:54,585 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-16 19:53:54,585 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 19:53:54,585 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 19:53:54,585 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 19:53:54,586 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 19:53:54,586 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 19:53:54,586 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 19:53:54,587 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 19:53:54,587 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 19:53:54,587 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 19:53:54,587 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 19:53:54,588 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-16 19:53:54,588 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-16 19:53:54,589 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 19:53:54,589 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-16 19:53:54,589 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-16 19:53:54,589 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_08a0b7cc-94bd-4f33-80ac-fefae1c26542/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a0b7cc-94bd-4f33-80ac-fefae1c26542/bin/utaipan-Xvt2sAort0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d3cffd3df6054c12dbcd2cadadc764aeec3d6f47b1320e00f0a0148f3e6de8bc [2022-11-16 19:53:55,090 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 19:53:55,120 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 19:53:55,123 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 19:53:55,124 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 19:53:55,125 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 19:53:55,127 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a0b7cc-94bd-4f33-80ac-fefae1c26542/bin/utaipan-Xvt2sAort0/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p09.c [2022-11-16 19:53:55,205 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a0b7cc-94bd-4f33-80ac-fefae1c26542/bin/utaipan-Xvt2sAort0/data/20fffba2c/6250c3b65074408ab179837c781bf43d/FLAG34cb94e98 [2022-11-16 19:53:55,845 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 19:53:55,846 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a0b7cc-94bd-4f33-80ac-fefae1c26542/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p09.c [2022-11-16 19:53:55,857 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a0b7cc-94bd-4f33-80ac-fefae1c26542/bin/utaipan-Xvt2sAort0/data/20fffba2c/6250c3b65074408ab179837c781bf43d/FLAG34cb94e98 [2022-11-16 19:53:56,143 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a0b7cc-94bd-4f33-80ac-fefae1c26542/bin/utaipan-Xvt2sAort0/data/20fffba2c/6250c3b65074408ab179837c781bf43d [2022-11-16 19:53:56,146 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 19:53:56,150 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 19:53:56,154 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 19:53:56,154 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 19:53:56,159 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 19:53:56,160 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:53:56" (1/1) ... [2022-11-16 19:53:56,161 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b80196 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:53:56, skipping insertion in model container [2022-11-16 19:53:56,161 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:53:56" (1/1) ... [2022-11-16 19:53:56,170 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 19:53:56,214 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 19:53:56,402 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_08a0b7cc-94bd-4f33-80ac-fefae1c26542/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p09.c[1107,1120] [2022-11-16 19:53:56,558 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 19:53:56,562 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 19:53:56,574 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_08a0b7cc-94bd-4f33-80ac-fefae1c26542/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p09.c[1107,1120] [2022-11-16 19:53:56,646 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 19:53:56,681 INFO L208 MainTranslator]: Completed translation [2022-11-16 19:53:56,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:53:56 WrapperNode [2022-11-16 19:53:56,682 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 19:53:56,683 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 19:53:56,684 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 19:53:56,684 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 19:53:56,692 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:53:56" (1/1) ... [2022-11-16 19:53:56,701 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:53:56" (1/1) ... [2022-11-16 19:53:56,736 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 225 [2022-11-16 19:53:56,736 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 19:53:56,737 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 19:53:56,737 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 19:53:56,738 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 19:53:56,752 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:53:56" (1/1) ... [2022-11-16 19:53:56,753 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:53:56" (1/1) ... [2022-11-16 19:53:56,764 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:53:56" (1/1) ... [2022-11-16 19:53:56,764 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:53:56" (1/1) ... [2022-11-16 19:53:56,772 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:53:56" (1/1) ... [2022-11-16 19:53:56,777 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:53:56" (1/1) ... [2022-11-16 19:53:56,779 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:53:56" (1/1) ... [2022-11-16 19:53:56,781 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:53:56" (1/1) ... [2022-11-16 19:53:56,785 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 19:53:56,786 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 19:53:56,787 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 19:53:56,787 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 19:53:56,788 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:53:56" (1/1) ... [2022-11-16 19:53:56,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 19:53:56,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a0b7cc-94bd-4f33-80ac-fefae1c26542/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 19:53:56,826 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a0b7cc-94bd-4f33-80ac-fefae1c26542/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 19:53:56,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a0b7cc-94bd-4f33-80ac-fefae1c26542/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 19:53:56,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 19:53:56,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 19:53:57,061 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 19:53:57,076 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 19:53:57,466 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 19:53:57,473 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 19:53:57,476 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 19:53:57,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 07:53:57 BoogieIcfgContainer [2022-11-16 19:53:57,478 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 19:53:57,504 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 19:53:57,504 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 19:53:57,508 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 19:53:57,508 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 07:53:56" (1/3) ... [2022-11-16 19:53:57,509 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@237387ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:53:57, skipping insertion in model container [2022-11-16 19:53:57,509 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:53:56" (2/3) ... [2022-11-16 19:53:57,509 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@237387ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:53:57, skipping insertion in model container [2022-11-16 19:53:57,510 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 07:53:57" (3/3) ... [2022-11-16 19:53:57,511 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p09.c [2022-11-16 19:53:57,538 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 19:53:57,538 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 19:53:57,618 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 19:53:57,629 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;@7069d46c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 19:53:57,629 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 19:53:57,634 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 19:53:57,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-16 19:53:57,643 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:53:57,643 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-16 19:53:57,645 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 19:53:57,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:53:57,653 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-16 19:53:57,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-16 19:53:57,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [786614630] [2022-11-16 19:53:57,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:53:57,672 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 19:53:57,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a0b7cc-94bd-4f33-80ac-fefae1c26542/bin/utaipan-Xvt2sAort0/mathsat [2022-11-16 19:53:57,683 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a0b7cc-94bd-4f33-80ac-fefae1c26542/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 19:53:57,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a0b7cc-94bd-4f33-80ac-fefae1c26542/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 19:53:57,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:53:57,888 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-16 19:53:57,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 19:53:58,096 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 19:53:58,098 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 19:53:58,099 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-16 19:53:58,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [786614630] [2022-11-16 19:53:58,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [786614630] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:53:58,101 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 19:53:58,101 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 19:53:58,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436887917] [2022-11-16 19:53:58,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:53:58,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 19:53:58,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-16 19:53:58,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 19:53:58,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 19:53:58,149 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 19:53:58,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:53:58,220 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-16 19:53:58,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 19:53:58,223 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 19:53:58,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:53:58,232 INFO L225 Difference]: With dead ends: 20 [2022-11-16 19:53:58,232 INFO L226 Difference]: Without dead ends: 11 [2022-11-16 19:53:58,236 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 19:53:58,240 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 19:53:58,241 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 19:53:58,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-16 19:53:58,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-16 19:53:58,278 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 19:53:58,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-16 19:53:58,281 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-16 19:53:58,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:53:58,282 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-16 19:53:58,282 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 19:53:58,282 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-16 19:53:58,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-16 19:53:58,283 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:53:58,284 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-16 19:53:58,302 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a0b7cc-94bd-4f33-80ac-fefae1c26542/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 19:53:58,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a0b7cc-94bd-4f33-80ac-fefae1c26542/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 19:53:58,497 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 19:53:58,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:53:58,498 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-16 19:53:58,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-16 19:53:58,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1975154307] [2022-11-16 19:53:58,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:53:58,500 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 19:53:58,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a0b7cc-94bd-4f33-80ac-fefae1c26542/bin/utaipan-Xvt2sAort0/mathsat [2022-11-16 19:53:58,502 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a0b7cc-94bd-4f33-80ac-fefae1c26542/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 19:53:58,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a0b7cc-94bd-4f33-80ac-fefae1c26542/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 19:53:58,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:53:58,665 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 31 conjunts are in the unsatisfiable core [2022-11-16 19:53:58,669 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 19:53:58,902 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 19:53:58,902 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 19:53:59,818 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 19:53:59,819 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-16 19:53:59,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1975154307] [2022-11-16 19:53:59,820 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1975154307] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 19:53:59,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1271028859] [2022-11-16 19:53:59,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:53:59,826 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-16 19:53:59,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a0b7cc-94bd-4f33-80ac-fefae1c26542/bin/utaipan-Xvt2sAort0/cvc4 [2022-11-16 19:53:59,833 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a0b7cc-94bd-4f33-80ac-fefae1c26542/bin/utaipan-Xvt2sAort0/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-16 19:53:59,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a0b7cc-94bd-4f33-80ac-fefae1c26542/bin/utaipan-Xvt2sAort0/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2022-11-16 19:54:00,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:54:00,106 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 27 conjunts are in the unsatisfiable core [2022-11-16 19:54:00,109 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 19:54:00,254 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 19:54:00,254 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 19:54:00,807 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 19:54:00,807 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1271028859] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 19:54:00,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [18898643] [2022-11-16 19:54:00,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:54:00,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 19:54:00,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a0b7cc-94bd-4f33-80ac-fefae1c26542/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 19:54:00,828 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a0b7cc-94bd-4f33-80ac-fefae1c26542/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 19:54:00,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a0b7cc-94bd-4f33-80ac-fefae1c26542/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-16 19:54:00,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:54:00,972 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 30 conjunts are in the unsatisfiable core [2022-11-16 19:54:00,975 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 19:54:01,128 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 19:54:01,129 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 19:54:01,584 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 19:54:01,584 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [18898643] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 19:54:01,589 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-16 19:54:01,590 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 6, 6] total 14 [2022-11-16 19:54:01,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124028860] [2022-11-16 19:54:01,591 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-16 19:54:01,592 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 19:54:01,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-16 19:54:01,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 19:54:01,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2022-11-16 19:54:01,595 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 14 states, 14 states have (on average 2.0) internal successors, (28), 14 states have internal predecessors, (28), 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 19:54:01,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:54:01,772 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-11-16 19:54:01,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 19:54:01,775 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.0) internal successors, (28), 14 states have internal predecessors, (28), 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 19:54:01,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:54:01,775 INFO L225 Difference]: With dead ends: 16 [2022-11-16 19:54:01,775 INFO L226 Difference]: Without dead ends: 14 [2022-11-16 19:54:01,776 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 28 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2022-11-16 19:54:01,777 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 13 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 17 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 19:54:01,777 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 28 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 17 Unchecked, 0.1s Time] [2022-11-16 19:54:01,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-16 19:54:01,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-11-16 19:54:01,785 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 19:54:01,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-11-16 19:54:01,786 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-11-16 19:54:01,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:54:01,787 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-11-16 19:54:01,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.0) internal successors, (28), 14 states have internal predecessors, (28), 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 19:54:01,788 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-11-16 19:54:01,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-16 19:54:01,788 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:54:01,789 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-16 19:54:01,799 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a0b7cc-94bd-4f33-80ac-fefae1c26542/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-16 19:54:01,999 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a0b7cc-94bd-4f33-80ac-fefae1c26542/bin/utaipan-Xvt2sAort0/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2022-11-16 19:54:02,204 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a0b7cc-94bd-4f33-80ac-fefae1c26542/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)] Ended with exit code 0 [2022-11-16 19:54:02,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a0b7cc-94bd-4f33-80ac-fefae1c26542/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a0b7cc-94bd-4f33-80ac-fefae1c26542/bin/utaipan-Xvt2sAort0/cvc4 --incremental --print-success --lang smt,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a0b7cc-94bd-4f33-80ac-fefae1c26542/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 19:54:02,396 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 19:54:02,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:54:02,397 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-11-16 19:54:02,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-16 19:54:02,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1689478788] [2022-11-16 19:54:02,399 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 19:54:02,399 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 19:54:02,399 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a0b7cc-94bd-4f33-80ac-fefae1c26542/bin/utaipan-Xvt2sAort0/mathsat [2022-11-16 19:54:02,400 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a0b7cc-94bd-4f33-80ac-fefae1c26542/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 19:54:02,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a0b7cc-94bd-4f33-80ac-fefae1c26542/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 19:54:02,610 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 19:54:02,610 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 19:54:02,619 INFO L263 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 48 conjunts are in the unsatisfiable core [2022-11-16 19:54:02,623 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 19:54:02,852 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 19:54:02,852 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 19:54:04,587 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 19:54:04,587 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-16 19:54:04,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1689478788] [2022-11-16 19:54:04,588 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1689478788] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 19:54:04,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [715803866] [2022-11-16 19:54:04,589 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 19:54:04,589 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-16 19:54:04,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a0b7cc-94bd-4f33-80ac-fefae1c26542/bin/utaipan-Xvt2sAort0/cvc4 [2022-11-16 19:54:04,591 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a0b7cc-94bd-4f33-80ac-fefae1c26542/bin/utaipan-Xvt2sAort0/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-16 19:54:04,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a0b7cc-94bd-4f33-80ac-fefae1c26542/bin/utaipan-Xvt2sAort0/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2022-11-16 19:54:04,935 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 19:54:04,935 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 19:54:04,941 INFO L263 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 62 conjunts are in the unsatisfiable core [2022-11-16 19:54:04,946 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 19:54:05,242 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 19:54:05,242 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 19:54:06,800 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 19:54:06,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [715803866] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 19:54:06,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [360566450] [2022-11-16 19:54:06,801 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 19:54:06,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 19:54:06,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a0b7cc-94bd-4f33-80ac-fefae1c26542/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 19:54:06,803 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a0b7cc-94bd-4f33-80ac-fefae1c26542/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 19:54:06,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a0b7cc-94bd-4f33-80ac-fefae1c26542/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-16 19:54:07,002 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 19:54:07,002 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 19:54:07,006 INFO L263 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 57 conjunts are in the unsatisfiable core [2022-11-16 19:54:07,011 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 19:54:07,445 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 19:54:07,445 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 19:54:09,631 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 19:54:09,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [360566450] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 19:54:09,631 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-16 19:54:09,632 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 7, 7] total 20 [2022-11-16 19:54:09,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729344171] [2022-11-16 19:54:09,632 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-16 19:54:09,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-16 19:54:09,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-16 19:54:09,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-16 19:54:09,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=298, Unknown=0, NotChecked=0, Total=380 [2022-11-16 19:54:09,637 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 20 states, 20 states have (on average 2.2) internal successors, (44), 20 states have internal predecessors, (44), 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 19:54:10,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:54:10,027 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions. [2022-11-16 19:54:10,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-16 19:54:10,031 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.2) internal successors, (44), 20 states have internal predecessors, (44), 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 19:54:10,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:54:10,032 INFO L225 Difference]: With dead ends: 22 [2022-11-16 19:54:10,032 INFO L226 Difference]: Without dead ends: 20 [2022-11-16 19:54:10,033 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 41 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=167, Invalid=483, Unknown=0, NotChecked=0, Total=650 [2022-11-16 19:54:10,034 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 37 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 38 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 19:54:10,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 35 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 25 Invalid, 0 Unknown, 38 Unchecked, 0.1s Time] [2022-11-16 19:54:10,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-11-16 19:54:10,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 18. [2022-11-16 19:54:10,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.0588235294117647) internal successors, (18), 17 states have internal predecessors, (18), 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 19:54:10,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2022-11-16 19:54:10,044 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 11 [2022-11-16 19:54:10,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:54:10,045 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2022-11-16 19:54:10,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.2) internal successors, (44), 20 states have internal predecessors, (44), 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 19:54:10,045 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2022-11-16 19:54:10,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-16 19:54:10,046 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:54:10,046 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1] [2022-11-16 19:54:10,067 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a0b7cc-94bd-4f33-80ac-fefae1c26542/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 19:54:10,251 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a0b7cc-94bd-4f33-80ac-fefae1c26542/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-16 19:54:10,450 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a0b7cc-94bd-4f33-80ac-fefae1c26542/bin/utaipan-Xvt2sAort0/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2022-11-16 19:54:10,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a0b7cc-94bd-4f33-80ac-fefae1c26542/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_08a0b7cc-94bd-4f33-80ac-fefae1c26542/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a0b7cc-94bd-4f33-80ac-fefae1c26542/bin/utaipan-Xvt2sAort0/cvc4 --incremental --print-success --lang smt [2022-11-16 19:54:10,648 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 19:54:10,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:54:10,649 INFO L85 PathProgramCache]: Analyzing trace with hash -1250702327, now seen corresponding path program 3 times [2022-11-16 19:54:10,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-16 19:54:10,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2081535512] [2022-11-16 19:54:10,650 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 19:54:10,650 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 19:54:10,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a0b7cc-94bd-4f33-80ac-fefae1c26542/bin/utaipan-Xvt2sAort0/mathsat [2022-11-16 19:54:10,652 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a0b7cc-94bd-4f33-80ac-fefae1c26542/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 19:54:10,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a0b7cc-94bd-4f33-80ac-fefae1c26542/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 19:54:10,863 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-16 19:54:10,863 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 19:54:10,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 46 conjunts are in the unsatisfiable core [2022-11-16 19:54:10,877 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 19:54:11,442 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 9 proven. 8 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-16 19:54:11,443 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 19:54:13,393 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-16 19:54:13,393 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-16 19:54:13,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2081535512] [2022-11-16 19:54:13,396 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2081535512] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 19:54:13,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1345041739] [2022-11-16 19:54:13,397 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 19:54:13,398 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-16 19:54:13,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a0b7cc-94bd-4f33-80ac-fefae1c26542/bin/utaipan-Xvt2sAort0/cvc4 [2022-11-16 19:54:13,399 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a0b7cc-94bd-4f33-80ac-fefae1c26542/bin/utaipan-Xvt2sAort0/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-16 19:54:13,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a0b7cc-94bd-4f33-80ac-fefae1c26542/bin/utaipan-Xvt2sAort0/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2022-11-16 19:54:13,804 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-16 19:54:13,804 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 19:54:13,814 INFO L263 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 59 conjunts are in the unsatisfiable core [2022-11-16 19:54:13,818 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 19:54:14,325 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 8 proven. 11 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-16 19:54:14,325 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 19:54:15,664 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-16 19:54:15,664 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1345041739] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 19:54:15,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [542270732] [2022-11-16 19:54:15,665 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 19:54:15,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 19:54:15,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a0b7cc-94bd-4f33-80ac-fefae1c26542/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 19:54:15,667 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a0b7cc-94bd-4f33-80ac-fefae1c26542/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 19:54:15,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a0b7cc-94bd-4f33-80ac-fefae1c26542/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-16 19:54:15,851 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-16 19:54:15,852 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 19:54:15,855 INFO L263 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 60 conjunts are in the unsatisfiable core [2022-11-16 19:54:15,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 19:54:16,366 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 7 proven. 14 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-16 19:54:16,366 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 19:54:17,562 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 17 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-16 19:54:17,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [542270732] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 19:54:17,563 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-16 19:54:17,563 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 7, 6, 8, 7] total 14 [2022-11-16 19:54:17,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934480560] [2022-11-16 19:54:17,564 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-16 19:54:17,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 19:54:17,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-16 19:54:17,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 19:54:17,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2022-11-16 19:54:17,568 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand has 14 states, 14 states have (on average 2.0714285714285716) internal successors, (29), 14 states have internal predecessors, (29), 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 19:54:17,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:54:17,781 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2022-11-16 19:54:17,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 19:54:17,782 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.0714285714285716) internal successors, (29), 14 states have internal predecessors, (29), 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 17 [2022-11-16 19:54:17,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:54:17,782 INFO L225 Difference]: With dead ends: 18 [2022-11-16 19:54:17,783 INFO L226 Difference]: Without dead ends: 0 [2022-11-16 19:54:17,783 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 78 SyntacticMatches, 6 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=105, Invalid=237, Unknown=0, NotChecked=0, Total=342 [2022-11-16 19:54:17,784 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 10 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 7 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 19:54:17,785 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 11 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 7 Unchecked, 0.0s Time] [2022-11-16 19:54:17,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-16 19:54:17,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-16 19:54:17,787 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 19:54:17,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-16 19:54:17,787 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2022-11-16 19:54:17,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:54:17,788 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 19:54:17,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.0714285714285716) internal successors, (29), 14 states have internal predecessors, (29), 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 19:54:17,788 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-16 19:54:17,788 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-16 19:54:17,791 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-16 19:54:17,808 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a0b7cc-94bd-4f33-80ac-fefae1c26542/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 19:54:18,010 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a0b7cc-94bd-4f33-80ac-fefae1c26542/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-16 19:54:18,208 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a0b7cc-94bd-4f33-80ac-fefae1c26542/bin/utaipan-Xvt2sAort0/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2022-11-16 19:54:18,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a0b7cc-94bd-4f33-80ac-fefae1c26542/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=3,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a0b7cc-94bd-4f33-80ac-fefae1c26542/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a0b7cc-94bd-4f33-80ac-fefae1c26542/bin/utaipan-Xvt2sAort0/cvc4 --incremental --print-success --lang smt [2022-11-16 19:54:18,408 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-16 19:54:18,582 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-16 19:54:18,582 INFO L895 garLoopResultBuilder]: At program point L221(lines 22 222) the Hoare annotation is: false [2022-11-16 19:54:18,582 INFO L895 garLoopResultBuilder]: At program point L91-2(lines 91 220) the Hoare annotation is: (let ((.cse0 (= (_ bv1 8) |ULTIMATE.start_main_~mask_SORT_1~0#1|)) (.cse1 (= |ULTIMATE.start_main_~var_7~0#1| (_ bv0 8))) (.cse2 (= |ULTIMATE.start_main_~var_12~0#1| (_ bv0 32))) (.cse3 (= (_ bv0 8) |ULTIMATE.start_main_~state_14~0#1|))) (or (and (= |ULTIMATE.start_main_~var_7~0#1| |ULTIMATE.start_main_~state_57~0#1|) .cse0 (= |ULTIMATE.start_main_~var_7~0#1| |ULTIMATE.start_main_~state_27~0#1|) .cse1 (= |ULTIMATE.start_main_~var_7~0#1| |ULTIMATE.start_main_~state_40~0#1|) (= |ULTIMATE.start_main_~state_8~0#1| |ULTIMATE.start_main_~var_7~0#1|) (= |ULTIMATE.start_main_~var_7~0#1| |ULTIMATE.start_main_~state_61~0#1|) (= |ULTIMATE.start_main_~var_7~0#1| |ULTIMATE.start_main_~state_25~0#1|) (= (_ bv1 8) |ULTIMATE.start_main_~var_21~0#1|) .cse2 .cse3) (and .cse0 (not (= |ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv0 32))) (exists ((|ULTIMATE.start_main_~var_91_arg_2~0#1| (_ BitVec 8))) (= ((_ extract 7 0) (bvand ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_1~0#1|) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |ULTIMATE.start_main_~var_91_arg_2~0#1|))))) |ULTIMATE.start_main_~state_40~0#1|)) .cse1 .cse2 .cse3))) [2022-11-16 19:54:18,583 INFO L899 garLoopResultBuilder]: For program point L91-3(lines 91 220) no Hoare annotation was computed. [2022-11-16 19:54:18,583 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-16 19:54:18,583 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-16 19:54:18,583 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-16 19:54:18,583 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 20) no Hoare annotation was computed. [2022-11-16 19:54:18,583 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2022-11-16 19:54:18,584 INFO L899 garLoopResultBuilder]: For program point L20-1(line 20) no Hoare annotation was computed. [2022-11-16 19:54:18,584 INFO L899 garLoopResultBuilder]: For program point L20-3(line 20) no Hoare annotation was computed. [2022-11-16 19:54:18,587 INFO L444 BasicCegarLoop]: Path program histogram: [3, 1] [2022-11-16 19:54:18,589 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 19:54:18,600 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_91_arg_2~0#1,QUANTIFIED] [2022-11-16 19:54:18,611 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_91_arg_2~0#1,QUANTIFIED] [2022-11-16 19:54:18,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 07:54:18 BoogieIcfgContainer [2022-11-16 19:54:18,616 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 19:54:18,616 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 19:54:18,616 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 19:54:18,617 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 19:54:18,617 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 07:53:57" (3/4) ... [2022-11-16 19:54:18,620 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-16 19:54:18,636 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-16 19:54:18,637 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-16 19:54:18,637 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 19:54:18,669 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((var_7 == state_57 && 1bv8 == mask_SORT_1) && var_7 == state_27) && var_7 == 0bv8) && var_7 == state_40) && state_8 == var_7) && var_7 == state_61) && var_7 == state_25) && 1bv8 == var_21) && var_12 == 0bv32) && 0bv8 == state_14) || (((((1bv8 == mask_SORT_1 && !(cond == 0bv32)) && (\exists ULTIMATE.start_main_~var_91_arg_2~0#1 : bv8 :: ~bvand32(~zero_extendFrom16To32(mask_SORT_1), ~zero_extendFrom16To32(~zero_extendFrom16To32(ULTIMATE.start_main_~var_91_arg_2~0#1)[7:0]))[7:0] == state_40)) && var_7 == 0bv8) && var_12 == 0bv32) && 0bv8 == state_14) [2022-11-16 19:54:18,712 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a0b7cc-94bd-4f33-80ac-fefae1c26542/bin/utaipan-Xvt2sAort0/witness.graphml [2022-11-16 19:54:18,712 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 19:54:18,713 INFO L158 Benchmark]: Toolchain (without parser) took 22562.91ms. Allocated memory was 73.4MB in the beginning and 251.7MB in the end (delta: 178.3MB). Free memory was 55.0MB in the beginning and 194.4MB in the end (delta: -139.3MB). Peak memory consumption was 38.3MB. Max. memory is 16.1GB. [2022-11-16 19:54:18,713 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 73.4MB. Free memory is still 54.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 19:54:18,713 INFO L158 Benchmark]: CACSL2BoogieTranslator took 529.05ms. Allocated memory is still 73.4MB. Free memory was 54.9MB in the beginning and 53.7MB in the end (delta: 1.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-16 19:54:18,714 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.19ms. Allocated memory is still 73.4MB. Free memory was 53.7MB in the beginning and 51.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 19:54:18,714 INFO L158 Benchmark]: Boogie Preprocessor took 48.09ms. Allocated memory is still 73.4MB. Free memory was 51.2MB in the beginning and 49.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 19:54:18,715 INFO L158 Benchmark]: RCFGBuilder took 692.41ms. Allocated memory is still 73.4MB. Free memory was 49.4MB in the beginning and 31.6MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-16 19:54:18,715 INFO L158 Benchmark]: TraceAbstraction took 21111.62ms. Allocated memory was 73.4MB in the beginning and 251.7MB in the end (delta: 178.3MB). Free memory was 55.7MB in the beginning and 198.6MB in the end (delta: -142.9MB). Peak memory consumption was 35.0MB. Max. memory is 16.1GB. [2022-11-16 19:54:18,715 INFO L158 Benchmark]: Witness Printer took 96.04ms. Allocated memory is still 251.7MB. Free memory was 198.6MB in the beginning and 194.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-16 19:54:18,721 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 73.4MB. Free memory is still 54.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 529.05ms. Allocated memory is still 73.4MB. Free memory was 54.9MB in the beginning and 53.7MB in the end (delta: 1.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.19ms. Allocated memory is still 73.4MB. Free memory was 53.7MB in the beginning and 51.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.09ms. Allocated memory is still 73.4MB. Free memory was 51.2MB in the beginning and 49.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 692.41ms. Allocated memory is still 73.4MB. Free memory was 49.4MB in the beginning and 31.6MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 21111.62ms. Allocated memory was 73.4MB in the beginning and 251.7MB in the end (delta: 178.3MB). Free memory was 55.7MB in the beginning and 198.6MB in the end (delta: -142.9MB). Peak memory consumption was 35.0MB. Max. memory is 16.1GB. * Witness Printer took 96.04ms. Allocated memory is still 251.7MB. Free memory was 198.6MB in the beginning and 194.4MB 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_91_arg_2~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_91_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: 21.0s, OverallIterations: 4, TraceHistogramMax: 5, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 64 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 64 mSDsluCounter, 87 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 62 IncrementalHoareTripleChecker+Unchecked, 72 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 54 IncrementalHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 15 mSDtfsCounter, 54 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 219 GetRequests, 149 SyntacticMatches, 10 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 314 ImplicationChecksByTransitivity, 6.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred 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, 7 NumberOfFragments, 64 HoareAnnotationTreeSize, 2 FomulaSimplifications, 38 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 128 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 15.3s InterpolantComputationTime, 113 NumberOfCodeBlocks, 95 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 202 ConstructedInterpolants, 81 QuantifiedInterpolants, 8193 SizeOfPredicates, 443 NumberOfNonLiveVariables, 2525 ConjunctsInSsa, 440 ConjunctsInUnsatCore, 19 InterpolantComputations, 1 PerfectInterpolantSequences, 72/210 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: 91]: Loop Invariant [2022-11-16 19:54:18,741 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_91_arg_2~0#1,QUANTIFIED] [2022-11-16 19:54:18,746 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_91_arg_2~0#1,QUANTIFIED] Derived loop invariant: ((((((((((var_7 == state_57 && 1bv8 == mask_SORT_1) && var_7 == state_27) && var_7 == 0bv8) && var_7 == state_40) && state_8 == var_7) && var_7 == state_61) && var_7 == state_25) && 1bv8 == var_21) && var_12 == 0bv32) && 0bv8 == state_14) || (((((1bv8 == mask_SORT_1 && !(cond == 0bv32)) && (\exists ULTIMATE.start_main_~var_91_arg_2~0#1 : bv8 :: ~bvand32(~zero_extendFrom16To32(mask_SORT_1), ~zero_extendFrom16To32(~zero_extendFrom16To32(ULTIMATE.start_main_~var_91_arg_2~0#1)[7:0]))[7:0] == state_40)) && var_7 == 0bv8) && var_12 == 0bv32) && 0bv8 == state_14) RESULT: Ultimate proved your program to be correct! [2022-11-16 19:54:18,767 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a0b7cc-94bd-4f33-80ac-fefae1c26542/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