./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Dekker.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a 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_06b7ad71-4682-4f75-bfe0-ee215c8fc9e9/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b7ad71-4682-4f75-bfe0-ee215c8fc9e9/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b7ad71-4682-4f75-bfe0-ee215c8fc9e9/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b7ad71-4682-4f75-bfe0-ee215c8fc9e9/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Dekker.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b7ad71-4682-4f75-bfe0-ee215c8fc9e9/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b7ad71-4682-4f75-bfe0-ee215c8fc9e9/bin/uautomizer-ZsLfNo2U6R --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 43c180476f804e78a8269aef99962c5d7a08d71e1723604e5340567598afce1e --- 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-38b53e6 [2022-11-25 17:07:56,081 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:07:56,083 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:07:56,104 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:07:56,105 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:07:56,106 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:07:56,107 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:07:56,109 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:07:56,111 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:07:56,112 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:07:56,113 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:07:56,119 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:07:56,119 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:07:56,120 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:07:56,123 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:07:56,125 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:07:56,127 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:07:56,131 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:07:56,132 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:07:56,135 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:07:56,141 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:07:56,143 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:07:56,148 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:07:56,149 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:07:56,152 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:07:56,158 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:07:56,158 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:07:56,159 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:07:56,159 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:07:56,160 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:07:56,163 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:07:56,164 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:07:56,165 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:07:56,167 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:07:56,169 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:07:56,169 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:07:56,170 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:07:56,171 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:07:56,171 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:07:56,172 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:07:56,173 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:07:56,174 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b7ad71-4682-4f75-bfe0-ee215c8fc9e9/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-25 17:07:56,211 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:07:56,216 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:07:56,216 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:07:56,225 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:07:56,226 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:07:56,226 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:07:56,227 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:07:56,227 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:07:56,228 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:07:56,228 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:07:56,229 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:07:56,229 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:07:56,230 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:07:56,230 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:07:56,230 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:07:56,230 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:07:56,235 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:07:56,235 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:07:56,235 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:07:56,235 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:07:56,236 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:07:56,236 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:07:56,236 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:07:56,236 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:07:56,237 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:07:56,237 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:07:56,237 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 17:07:56,237 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:07:56,237 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:07:56,238 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:07:56,238 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:07:56,238 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_06b7ad71-4682-4f75-bfe0-ee215c8fc9e9/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b7ad71-4682-4f75-bfe0-ee215c8fc9e9/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 43c180476f804e78a8269aef99962c5d7a08d71e1723604e5340567598afce1e [2022-11-25 17:07:56,527 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:07:56,562 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:07:56,565 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:07:56,567 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:07:56,568 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:07:56,570 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b7ad71-4682-4f75-bfe0-ee215c8fc9e9/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Dekker.c [2022-11-25 17:07:59,761 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:08:00,039 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:08:00,040 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b7ad71-4682-4f75-bfe0-ee215c8fc9e9/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Dekker.c [2022-11-25 17:08:00,066 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b7ad71-4682-4f75-bfe0-ee215c8fc9e9/bin/uautomizer-ZsLfNo2U6R/data/d2353f931/7d2d8ec3a5b0416094732a29e781d25d/FLAG4529bb7cf [2022-11-25 17:08:00,086 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b7ad71-4682-4f75-bfe0-ee215c8fc9e9/bin/uautomizer-ZsLfNo2U6R/data/d2353f931/7d2d8ec3a5b0416094732a29e781d25d [2022-11-25 17:08:00,089 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:08:00,091 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:08:00,093 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:08:00,093 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:08:00,097 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:08:00,098 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:08:00" (1/1) ... [2022-11-25 17:08:00,100 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@111aa071 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:08:00, skipping insertion in model container [2022-11-25 17:08:00,100 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:08:00" (1/1) ... [2022-11-25 17:08:00,109 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:08:00,182 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:08:00,347 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b7ad71-4682-4f75-bfe0-ee215c8fc9e9/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Dekker.c[1107,1120] [2022-11-25 17:08:00,677 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:08:00,695 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:08:00,705 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b7ad71-4682-4f75-bfe0-ee215c8fc9e9/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Dekker.c[1107,1120] [2022-11-25 17:08:00,876 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:08:00,892 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:08:00,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:08:00 WrapperNode [2022-11-25 17:08:00,894 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:08:00,896 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:08:00,896 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:08:00,897 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:08:00,904 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:08:00" (1/1) ... [2022-11-25 17:08:00,945 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:08:00" (1/1) ... [2022-11-25 17:08:01,029 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1032 [2022-11-25 17:08:01,030 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:08:01,030 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:08:01,030 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:08:01,031 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:08:01,041 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:08:00" (1/1) ... [2022-11-25 17:08:01,042 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:08:00" (1/1) ... [2022-11-25 17:08:01,052 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:08:00" (1/1) ... [2022-11-25 17:08:01,053 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:08:00" (1/1) ... [2022-11-25 17:08:01,077 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:08:00" (1/1) ... [2022-11-25 17:08:01,082 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:08:00" (1/1) ... [2022-11-25 17:08:01,087 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:08:00" (1/1) ... [2022-11-25 17:08:01,093 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:08:00" (1/1) ... [2022-11-25 17:08:01,104 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:08:01,105 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:08:01,105 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:08:01,106 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:08:01,106 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:08:00" (1/1) ... [2022-11-25 17:08:01,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:08:01,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b7ad71-4682-4f75-bfe0-ee215c8fc9e9/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:08:01,145 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b7ad71-4682-4f75-bfe0-ee215c8fc9e9/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:08:01,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b7ad71-4682-4f75-bfe0-ee215c8fc9e9/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:08:01,225 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:08:01,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:08:01,664 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:08:01,676 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:08:15,909 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:08:15,917 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:08:15,918 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 17:08:15,920 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:08:15 BoogieIcfgContainer [2022-11-25 17:08:15,920 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:08:15,922 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:08:15,923 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:08:15,926 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:08:15,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:08:00" (1/3) ... [2022-11-25 17:08:15,928 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b226d9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:08:15, skipping insertion in model container [2022-11-25 17:08:15,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:08:00" (2/3) ... [2022-11-25 17:08:15,928 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b226d9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:08:15, skipping insertion in model container [2022-11-25 17:08:15,929 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:08:15" (3/3) ... [2022-11-25 17:08:15,930 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_Dekker.c [2022-11-25 17:08:15,952 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:08:15,952 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 17:08:16,007 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:08:16,014 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=PETRI_NET, 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;@172c6df9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:08:16,015 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 17:08:16,020 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) [2022-11-25 17:08:16,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-25 17:08:16,027 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:08:16,028 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 17:08:16,028 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:08:16,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:08:16,034 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-25 17:08:16,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:08:16,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144762172] [2022-11-25 17:08:16,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:08:16,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:08:16,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:08:16,411 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:08:16,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:08:16,586 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:08:16,589 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 17:08:16,590 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-25 17:08:16,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 17:08:16,601 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-11-25 17:08:16,606 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 17:08:16,648 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-25 17:08:16,657 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 05:08:16 BoogieIcfgContainer [2022-11-25 17:08:16,658 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 17:08:16,658 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 17:08:16,659 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 17:08:16,659 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 17:08:16,660 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:08:15" (3/4) ... [2022-11-25 17:08:16,663 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 17:08:16,664 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 17:08:16,665 INFO L158 Benchmark]: Toolchain (without parser) took 16573.84ms. Allocated memory was 167.8MB in the beginning and 528.5MB in the end (delta: 360.7MB). Free memory was 120.7MB in the beginning and 426.7MB in the end (delta: -306.0MB). Peak memory consumption was 57.1MB. Max. memory is 16.1GB. [2022-11-25 17:08:16,666 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 167.8MB. Free memory is still 137.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:08:16,666 INFO L158 Benchmark]: CACSL2BoogieTranslator took 801.67ms. Allocated memory is still 167.8MB. Free memory was 120.7MB in the beginning and 86.0MB in the end (delta: 34.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2022-11-25 17:08:16,667 INFO L158 Benchmark]: Boogie Procedure Inliner took 133.75ms. Allocated memory is still 167.8MB. Free memory was 86.0MB in the beginning and 75.9MB in the end (delta: 10.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-25 17:08:16,668 INFO L158 Benchmark]: Boogie Preprocessor took 74.06ms. Allocated memory is still 167.8MB. Free memory was 75.9MB in the beginning and 70.9MB in the end (delta: 5.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-25 17:08:16,669 INFO L158 Benchmark]: RCFGBuilder took 14815.20ms. Allocated memory was 167.8MB in the beginning and 528.5MB in the end (delta: 360.7MB). Free memory was 70.9MB in the beginning and 462.4MB in the end (delta: -391.5MB). Peak memory consumption was 266.8MB. Max. memory is 16.1GB. [2022-11-25 17:08:16,669 INFO L158 Benchmark]: TraceAbstraction took 735.59ms. Allocated memory is still 528.5MB. Free memory was 461.3MB in the beginning and 426.7MB in the end (delta: 34.6MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2022-11-25 17:08:16,670 INFO L158 Benchmark]: Witness Printer took 5.21ms. Allocated memory is still 528.5MB. Free memory is still 426.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:08:16,673 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 167.8MB. Free memory is still 137.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 801.67ms. Allocated memory is still 167.8MB. Free memory was 120.7MB in the beginning and 86.0MB in the end (delta: 34.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 133.75ms. Allocated memory is still 167.8MB. Free memory was 86.0MB in the beginning and 75.9MB in the end (delta: 10.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 74.06ms. Allocated memory is still 167.8MB. Free memory was 75.9MB in the beginning and 70.9MB in the end (delta: 5.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 14815.20ms. Allocated memory was 167.8MB in the beginning and 528.5MB in the end (delta: 360.7MB). Free memory was 70.9MB in the beginning and 462.4MB in the end (delta: -391.5MB). Peak memory consumption was 266.8MB. Max. memory is 16.1GB. * TraceAbstraction took 735.59ms. Allocated memory is still 528.5MB. Free memory was 461.3MB in the beginning and 426.7MB in the end (delta: 34.6MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Witness Printer took 5.21ms. Allocated memory is still 528.5MB. Free memory is still 426.7MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 20]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseComplement at line 173, overapproximation of bitwiseAnd at line 109. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L28] const SORT_5 mask_SORT_5 = (SORT_5)-1 >> (sizeof(SORT_5) * 8 - 3); [L29] const SORT_5 msb_SORT_5 = (SORT_5)1 << (3 - 1); [L31] const SORT_242 mask_SORT_242 = (SORT_242)-1 >> (sizeof(SORT_242) * 8 - 2); [L32] const SORT_242 msb_SORT_242 = (SORT_242)1 << (2 - 1); [L34] const SORT_5 var_6 = 0; [L35] const SORT_1 var_11 = 0; [L36] const SORT_5 var_13 = 5; [L37] const SORT_1 var_15 = 1; [L38] const SORT_5 var_33 = 7; [L39] const SORT_5 var_39 = 1; [L40] const SORT_5 var_46 = 2; [L41] const SORT_5 var_60 = 3; [L42] const SORT_5 var_70 = 4; [L43] const SORT_5 var_199 = 6; [L45] SORT_1 input_2; [L46] SORT_1 input_3; [L47] SORT_1 input_4; [L48] SORT_5 input_32; [L49] SORT_1 input_43; [L50] SORT_5 input_79; [L51] SORT_5 input_80; [L52] SORT_5 input_81; [L53] SORT_5 input_82; [L54] SORT_5 input_83; [L55] SORT_5 input_84; [L56] SORT_5 input_85; [L57] SORT_5 input_86; [L58] SORT_5 input_87; [L59] SORT_5 input_97; [L60] SORT_5 input_112; [L61] SORT_5 input_113; [L62] SORT_5 input_129; [L63] SORT_5 input_130; [L64] SORT_5 input_146; [L65] SORT_5 input_147; [L66] SORT_5 input_163; [L67] SORT_5 input_164; [L68] SORT_5 input_180; [L69] SORT_5 input_181; [L70] SORT_5 input_197; [L71] SORT_5 input_198; [L72] SORT_5 input_217; [L73] SORT_1 input_259; [L74] SORT_1 input_265; [L75] SORT_1 input_266; [L76] SORT_1 input_268; [L77] SORT_1 input_277; [L78] SORT_1 input_278; [L79] SORT_1 input_279; [L80] SORT_1 input_287; [L81] SORT_1 input_297; [L82] SORT_1 input_303; [L83] SORT_1 input_304; [L84] SORT_1 input_306; [L85] SORT_1 input_315; [L86] SORT_1 input_316; [L87] SORT_1 input_317; [L88] SORT_1 input_325; [L90] SORT_5 state_7 = __VERIFIER_nondet_uchar() & mask_SORT_5; [L91] SORT_5 state_9 = __VERIFIER_nondet_uchar() & mask_SORT_5; [L92] SORT_1 state_25 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L93] SORT_1 state_27 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L94] SORT_1 state_30 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L96] SORT_5 init_8_arg_1 = var_6; [L97] state_7 = init_8_arg_1 [L98] SORT_5 init_10_arg_1 = var_6; [L99] state_9 = init_10_arg_1 [L100] SORT_1 init_26_arg_1 = var_15; [L101] state_25 = init_26_arg_1 [L102] SORT_1 init_28_arg_1 = var_15; [L103] state_27 = init_28_arg_1 VAL [init_10_arg_1=0, init_26_arg_1=1, init_28_arg_1=1, init_8_arg_1=0, mask_SORT_1=1, mask_SORT_242=3, mask_SORT_5=7, msb_SORT_1=1, msb_SORT_242=2, msb_SORT_5=4, state_25=1, state_27=1, state_30=0, state_7=0, state_9=0, var_11=0, var_13=5, var_15=1, var_199=6, var_33=7, var_39=1, var_46=2, var_6=0, var_60=3, var_70=4] [L106] input_2 = __VERIFIER_nondet_uchar() [L107] input_3 = __VERIFIER_nondet_uchar() [L108] input_4 = __VERIFIER_nondet_uchar() [L109] input_4 = input_4 & mask_SORT_1 [L110] input_32 = __VERIFIER_nondet_uchar() [L111] input_43 = __VERIFIER_nondet_uchar() [L112] input_79 = __VERIFIER_nondet_uchar() [L113] input_80 = __VERIFIER_nondet_uchar() [L114] input_81 = __VERIFIER_nondet_uchar() [L115] input_82 = __VERIFIER_nondet_uchar() [L116] input_83 = __VERIFIER_nondet_uchar() [L117] input_84 = __VERIFIER_nondet_uchar() [L118] input_85 = __VERIFIER_nondet_uchar() [L119] input_86 = __VERIFIER_nondet_uchar() [L120] input_87 = __VERIFIER_nondet_uchar() [L121] input_97 = __VERIFIER_nondet_uchar() [L122] input_112 = __VERIFIER_nondet_uchar() [L123] input_113 = __VERIFIER_nondet_uchar() [L124] input_129 = __VERIFIER_nondet_uchar() [L125] input_130 = __VERIFIER_nondet_uchar() [L126] input_146 = __VERIFIER_nondet_uchar() [L127] input_147 = __VERIFIER_nondet_uchar() [L128] input_163 = __VERIFIER_nondet_uchar() [L129] input_164 = __VERIFIER_nondet_uchar() [L130] input_180 = __VERIFIER_nondet_uchar() [L131] input_181 = __VERIFIER_nondet_uchar() [L132] input_197 = __VERIFIER_nondet_uchar() [L133] input_198 = __VERIFIER_nondet_uchar() [L134] input_217 = __VERIFIER_nondet_uchar() [L135] input_259 = __VERIFIER_nondet_uchar() [L136] input_265 = __VERIFIER_nondet_uchar() [L137] input_266 = __VERIFIER_nondet_uchar() [L138] input_268 = __VERIFIER_nondet_uchar() [L139] input_277 = __VERIFIER_nondet_uchar() [L140] input_278 = __VERIFIER_nondet_uchar() [L141] input_279 = __VERIFIER_nondet_uchar() [L142] input_287 = __VERIFIER_nondet_uchar() [L143] input_297 = __VERIFIER_nondet_uchar() [L144] input_303 = __VERIFIER_nondet_uchar() [L145] input_304 = __VERIFIER_nondet_uchar() [L146] input_306 = __VERIFIER_nondet_uchar() [L147] input_315 = __VERIFIER_nondet_uchar() [L148] input_316 = __VERIFIER_nondet_uchar() [L149] input_317 = __VERIFIER_nondet_uchar() [L150] input_325 = __VERIFIER_nondet_uchar() [L153] SORT_1 var_12_arg_0 = var_11; [L154] SORT_5 var_12_arg_1 = state_9; [L155] SORT_5 var_12_arg_2 = state_7; [L156] SORT_5 var_12 = var_12_arg_0 ? var_12_arg_1 : var_12_arg_2; [L157] var_12 = var_12 & mask_SORT_5 [L158] SORT_5 var_14_arg_0 = var_12; [L159] SORT_5 var_14_arg_1 = var_13; [L160] SORT_1 var_14 = var_14_arg_0 == var_14_arg_1; [L161] SORT_1 var_16_arg_0 = var_15; [L162] SORT_5 var_16_arg_1 = state_9; [L163] SORT_5 var_16_arg_2 = state_7; [L164] SORT_5 var_16 = var_16_arg_0 ? var_16_arg_1 : var_16_arg_2; [L165] var_16 = var_16 & mask_SORT_5 [L166] SORT_5 var_17_arg_0 = var_16; [L167] SORT_5 var_17_arg_1 = var_13; [L168] SORT_1 var_17 = var_17_arg_0 == var_17_arg_1; [L169] SORT_1 var_18_arg_0 = var_14; [L170] SORT_1 var_18_arg_1 = var_17; [L171] SORT_1 var_18 = var_18_arg_0 & var_18_arg_1; [L172] SORT_1 var_19_arg_0 = var_18; [L173] SORT_1 var_19 = ~var_19_arg_0; [L174] SORT_1 var_22_arg_0 = var_19; [L175] SORT_1 var_22 = ~var_22_arg_0; [L176] SORT_1 var_23_arg_0 = var_15; [L177] SORT_1 var_23_arg_1 = var_22; [L178] SORT_1 var_23 = var_23_arg_0 & var_23_arg_1; [L179] var_23 = var_23 & mask_SORT_1 [L180] SORT_1 bad_24_arg_0 = var_23; [L181] 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, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, 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=11occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 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 [2022-11-25 17:08:16,726 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b7ad71-4682-4f75-bfe0-ee215c8fc9e9/bin/uautomizer-ZsLfNo2U6R/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_06b7ad71-4682-4f75-bfe0-ee215c8fc9e9/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b7ad71-4682-4f75-bfe0-ee215c8fc9e9/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b7ad71-4682-4f75-bfe0-ee215c8fc9e9/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b7ad71-4682-4f75-bfe0-ee215c8fc9e9/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Dekker.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b7ad71-4682-4f75-bfe0-ee215c8fc9e9/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b7ad71-4682-4f75-bfe0-ee215c8fc9e9/bin/uautomizer-ZsLfNo2U6R --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 43c180476f804e78a8269aef99962c5d7a08d71e1723604e5340567598afce1e --- 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-38b53e6 [2022-11-25 17:08:19,491 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:08:19,494 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:08:19,532 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:08:19,533 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:08:19,538 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:08:19,543 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:08:19,545 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:08:19,546 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:08:19,547 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:08:19,549 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:08:19,550 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:08:19,550 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:08:19,552 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:08:19,553 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:08:19,554 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:08:19,561 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:08:19,567 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:08:19,573 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:08:19,578 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:08:19,580 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:08:19,585 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:08:19,586 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:08:19,587 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:08:19,591 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:08:19,591 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:08:19,591 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:08:19,593 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:08:19,593 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:08:19,594 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:08:19,595 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:08:19,601 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:08:19,603 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:08:19,605 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:08:19,620 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:08:19,621 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:08:19,621 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:08:19,622 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:08:19,622 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:08:19,623 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:08:19,624 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:08:19,626 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b7ad71-4682-4f75-bfe0-ee215c8fc9e9/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-25 17:08:19,675 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:08:19,676 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:08:19,678 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:08:19,678 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:08:19,679 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:08:19,680 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:08:19,681 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:08:19,681 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:08:19,682 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:08:19,682 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:08:19,683 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:08:19,684 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:08:19,684 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:08:19,685 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:08:19,685 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 17:08:19,685 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-25 17:08:19,686 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-25 17:08:19,686 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:08:19,686 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:08:19,687 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:08:19,687 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:08:19,687 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:08:19,688 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:08:19,688 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:08:19,689 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:08:19,689 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:08:19,689 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:08:19,690 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-25 17:08:19,690 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-25 17:08:19,690 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:08:19,691 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:08:19,691 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:08:19,692 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:08:19,692 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-11-25 17:08:19,692 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_06b7ad71-4682-4f75-bfe0-ee215c8fc9e9/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b7ad71-4682-4f75-bfe0-ee215c8fc9e9/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 43c180476f804e78a8269aef99962c5d7a08d71e1723604e5340567598afce1e [2022-11-25 17:08:20,126 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:08:20,160 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:08:20,163 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:08:20,165 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:08:20,171 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:08:20,173 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b7ad71-4682-4f75-bfe0-ee215c8fc9e9/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Dekker.c [2022-11-25 17:08:23,324 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:08:23,689 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:08:23,690 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b7ad71-4682-4f75-bfe0-ee215c8fc9e9/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Dekker.c [2022-11-25 17:08:23,706 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b7ad71-4682-4f75-bfe0-ee215c8fc9e9/bin/uautomizer-ZsLfNo2U6R/data/a832bfaa2/b6cd7e9cf8074339b260b6d235979a3d/FLAG207063496 [2022-11-25 17:08:23,727 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b7ad71-4682-4f75-bfe0-ee215c8fc9e9/bin/uautomizer-ZsLfNo2U6R/data/a832bfaa2/b6cd7e9cf8074339b260b6d235979a3d [2022-11-25 17:08:23,730 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:08:23,732 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:08:23,734 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:08:23,734 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:08:23,738 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:08:23,739 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:08:23" (1/1) ... [2022-11-25 17:08:23,741 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63750343 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:08:23, skipping insertion in model container [2022-11-25 17:08:23,741 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:08:23" (1/1) ... [2022-11-25 17:08:23,750 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:08:23,811 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:08:23,991 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b7ad71-4682-4f75-bfe0-ee215c8fc9e9/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Dekker.c[1107,1120] [2022-11-25 17:08:24,286 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:08:24,298 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:08:24,321 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b7ad71-4682-4f75-bfe0-ee215c8fc9e9/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Dekker.c[1107,1120] [2022-11-25 17:08:24,476 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:08:24,491 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:08:24,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:08:24 WrapperNode [2022-11-25 17:08:24,492 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:08:24,494 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:08:24,494 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:08:24,494 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:08:24,503 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:08:24" (1/1) ... [2022-11-25 17:08:24,538 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:08:24" (1/1) ... [2022-11-25 17:08:24,659 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1032 [2022-11-25 17:08:24,675 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:08:24,676 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:08:24,676 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:08:24,676 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:08:24,689 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:08:24" (1/1) ... [2022-11-25 17:08:24,692 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:08:24" (1/1) ... [2022-11-25 17:08:24,733 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:08:24" (1/1) ... [2022-11-25 17:08:24,733 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:08:24" (1/1) ... [2022-11-25 17:08:24,770 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:08:24" (1/1) ... [2022-11-25 17:08:24,787 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:08:24" (1/1) ... [2022-11-25 17:08:24,791 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:08:24" (1/1) ... [2022-11-25 17:08:24,798 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:08:24" (1/1) ... [2022-11-25 17:08:24,819 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:08:24,820 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:08:24,820 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:08:24,820 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:08:24,834 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:08:24" (1/1) ... [2022-11-25 17:08:24,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:08:24,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b7ad71-4682-4f75-bfe0-ee215c8fc9e9/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:08:24,874 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b7ad71-4682-4f75-bfe0-ee215c8fc9e9/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:08:24,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b7ad71-4682-4f75-bfe0-ee215c8fc9e9/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:08:24,920 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:08:24,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:08:25,300 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:08:25,303 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:08:26,713 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:08:26,729 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:08:26,732 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 17:08:26,737 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:08:26 BoogieIcfgContainer [2022-11-25 17:08:26,738 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:08:26,741 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:08:26,742 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:08:26,745 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:08:26,746 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:08:23" (1/3) ... [2022-11-25 17:08:26,748 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9f0fa1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:08:26, skipping insertion in model container [2022-11-25 17:08:26,748 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:08:24" (2/3) ... [2022-11-25 17:08:26,749 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9f0fa1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:08:26, skipping insertion in model container [2022-11-25 17:08:26,750 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:08:26" (3/3) ... [2022-11-25 17:08:26,751 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_Dekker.c [2022-11-25 17:08:26,775 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:08:26,775 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 17:08:26,841 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:08:26,849 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=PETRI_NET, 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;@5c4f82ba, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:08:26,850 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 17:08:26,854 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) [2022-11-25 17:08:26,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-25 17:08:26,862 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:08:26,863 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 17:08:26,864 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:08:26,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:08:26,872 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-25 17:08:26,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:08:26,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [370130239] [2022-11-25 17:08:26,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:08:26,888 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 [2022-11-25 17:08:26,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b7ad71-4682-4f75-bfe0-ee215c8fc9e9/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:08:26,894 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b7ad71-4682-4f75-bfe0-ee215c8fc9e9/bin/uautomizer-ZsLfNo2U6R/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) [2022-11-25 17:08:26,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b7ad71-4682-4f75-bfe0-ee215c8fc9e9/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 17:08:27,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:27,267 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-25 17:08:27,276 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:08:27,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:08:27,513 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:08:27,514 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 17:08:27,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [370130239] [2022-11-25 17:08:27,515 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [370130239] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:08:27,515 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:08:27,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 17:08:27,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127993082] [2022-11-25 17:08:27,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:08:27,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 17:08:27,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 17:08:27,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 17:08:27,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 17:08:27,584 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) [2022-11-25 17:08:27,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:08:27,888 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-25 17:08:27,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 17:08:27,892 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 [2022-11-25 17:08:27,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:08:27,903 INFO L225 Difference]: With dead ends: 20 [2022-11-25 17:08:27,904 INFO L226 Difference]: Without dead ends: 11 [2022-11-25 17:08:27,907 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 [2022-11-25 17:08:27,913 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 17:08:27,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 17:08:27,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-25 17:08:27,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-25 17:08:27,947 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) [2022-11-25 17:08:27,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-25 17:08:27,950 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-25 17:08:27,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:08:27,951 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-25 17:08:27,951 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) [2022-11-25 17:08:27,952 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-25 17:08:27,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-25 17:08:27,952 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:08:27,952 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-25 17:08:27,973 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b7ad71-4682-4f75-bfe0-ee215c8fc9e9/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 17:08:28,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b7ad71-4682-4f75-bfe0-ee215c8fc9e9/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 17:08:28,166 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:08:28,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:08:28,167 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-25 17:08:28,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:08:28,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2012637680] [2022-11-25 17:08:28,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:08:28,172 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 [2022-11-25 17:08:28,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b7ad71-4682-4f75-bfe0-ee215c8fc9e9/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:08:28,174 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b7ad71-4682-4f75-bfe0-ee215c8fc9e9/bin/uautomizer-ZsLfNo2U6R/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) [2022-11-25 17:08:28,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b7ad71-4682-4f75-bfe0-ee215c8fc9e9/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 17:08:28,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:28,882 INFO L263 TraceCheckSpWp]: Trace formula consists of 978 conjuncts, 67 conjunts are in the unsatisfiable core [2022-11-25 17:08:28,893 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:08:30,862 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:08:30,862 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:13:17,464 WARN L233 SmtUtils]: Spent 4.74m on a formula simplification. DAG size of input: 213 DAG size of output: 195 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 17:15:14,556 WARN L233 SmtUtils]: Spent 1.87m on a formula simplification. DAG size of input: 192 DAG size of output: 188 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 17:15:15,001 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:15:15,003 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 17:15:15,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2012637680] [2022-11-25 17:15:15,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2012637680] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:15:15,008 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 17:15:15,008 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 9 [2022-11-25 17:15:15,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104798681] [2022-11-25 17:15:15,010 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 17:15:15,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 17:15:15,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 17:15:15,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 17:15:15,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=49, Unknown=2, NotChecked=0, Total=72 [2022-11-25 17:15:15,013 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 9 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 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) [2022-11-25 17:15:15,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:15:15,476 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-11-25 17:15:15,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 17:15:15,477 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 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 [2022-11-25 17:15:15,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:15:15,478 INFO L225 Difference]: With dead ends: 16 [2022-11-25 17:15:15,478 INFO L226 Difference]: Without dead ends: 14 [2022-11-25 17:15:15,479 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 402.5s TimeCoverageRelationStatistics Valid=37, Invalid=71, Unknown=2, NotChecked=0, Total=110 [2022-11-25 17:15:15,480 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 9 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 17:15:15,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 21 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 17:15:15,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-25 17:15:15,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-11-25 17:15:15,485 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) [2022-11-25 17:15:15,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-11-25 17:15:15,486 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-11-25 17:15:15,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:15:15,486 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-11-25 17:15:15,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 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) [2022-11-25 17:15:15,487 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-11-25 17:15:15,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-25 17:15:15,488 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:15:15,488 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-25 17:15:15,507 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b7ad71-4682-4f75-bfe0-ee215c8fc9e9/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 17:15:15,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b7ad71-4682-4f75-bfe0-ee215c8fc9e9/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 17:15:15,704 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:15:15,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:15:15,705 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-11-25 17:15:15,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:15:15,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2124093889] [2022-11-25 17:15:15,707 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 17:15:15,708 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 [2022-11-25 17:15:15,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b7ad71-4682-4f75-bfe0-ee215c8fc9e9/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:15:15,709 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b7ad71-4682-4f75-bfe0-ee215c8fc9e9/bin/uautomizer-ZsLfNo2U6R/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) [2022-11-25 17:15:15,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b7ad71-4682-4f75-bfe0-ee215c8fc9e9/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-25 17:15:16,519 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 17:15:16,519 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:15:16,558 INFO L263 TraceCheckSpWp]: Trace formula consists of 1855 conjuncts, 369 conjunts are in the unsatisfiable core [2022-11-25 17:15:16,582 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:21:15,203 WARN L233 SmtUtils]: Spent 5.57m on a formula simplification. DAG size of input: 1396 DAG size of output: 714 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 17:21:15,622 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:21:15,622 INFO L328 TraceCheckSpWp]: Computing backward predicates...