./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bakery.1.prop1-func-interl.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_39f86363-16ba-47dd-8825-9c0c3e37dbc9/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f86363-16ba-47dd-8825-9c0c3e37dbc9/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_39f86363-16ba-47dd-8825-9c0c3e37dbc9/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f86363-16ba-47dd-8825-9c0c3e37dbc9/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bakery.1.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f86363-16ba-47dd-8825-9c0c3e37dbc9/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_39f86363-16ba-47dd-8825-9c0c3e37dbc9/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 15ad4ed6d6c637b6ca55a4ce260ed4a2d8bde7cee87ac344e7916883bfed5f10 --- 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 18:32:52,823 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 18:32:52,827 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 18:32:52,882 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 18:32:52,883 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 18:32:52,886 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 18:32:52,888 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 18:32:52,893 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 18:32:52,898 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 18:32:52,903 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 18:32:52,905 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 18:32:52,907 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 18:32:52,909 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 18:32:52,914 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 18:32:52,915 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 18:32:52,918 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 18:32:52,920 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 18:32:52,929 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 18:32:52,931 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 18:32:52,934 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 18:32:52,936 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 18:32:52,937 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 18:32:52,939 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 18:32:52,940 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 18:32:52,945 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 18:32:52,945 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 18:32:52,946 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 18:32:52,947 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 18:32:52,948 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 18:32:52,949 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 18:32:52,950 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 18:32:52,951 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 18:32:52,952 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 18:32:52,953 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 18:32:52,955 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 18:32:52,955 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 18:32:52,956 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 18:32:52,957 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 18:32:52,957 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 18:32:52,959 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 18:32:52,960 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 18:32:52,961 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f86363-16ba-47dd-8825-9c0c3e37dbc9/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-25 18:32:52,988 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 18:32:52,989 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 18:32:52,989 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 18:32:52,990 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 18:32:52,991 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 18:32:52,991 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 18:32:52,992 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 18:32:52,992 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 18:32:52,993 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 18:32:52,993 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 18:32:52,994 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 18:32:52,994 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 18:32:52,994 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 18:32:52,995 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 18:32:52,995 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 18:32:52,995 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 18:32:52,995 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 18:32:52,996 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 18:32:52,996 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 18:32:52,996 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 18:32:52,997 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 18:32:52,997 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:32:52,997 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 18:32:52,998 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 18:32:52,998 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 18:32:52,998 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 18:32:52,999 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 18:32:52,999 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 18:32:52,999 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 18:32:53,000 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 18:32:53,000 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 18:32:53,022 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_39f86363-16ba-47dd-8825-9c0c3e37dbc9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f86363-16ba-47dd-8825-9c0c3e37dbc9/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 15ad4ed6d6c637b6ca55a4ce260ed4a2d8bde7cee87ac344e7916883bfed5f10 [2022-11-25 18:32:53,333 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 18:32:53,363 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 18:32:53,366 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 18:32:53,367 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 18:32:53,368 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 18:32:53,369 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f86363-16ba-47dd-8825-9c0c3e37dbc9/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bakery.1.prop1-func-interl.c [2022-11-25 18:32:56,769 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 18:32:57,182 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 18:32:57,194 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f86363-16ba-47dd-8825-9c0c3e37dbc9/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bakery.1.prop1-func-interl.c [2022-11-25 18:32:57,215 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f86363-16ba-47dd-8825-9c0c3e37dbc9/bin/uautomizer-ZsLfNo2U6R/data/9e6f20fcc/d4a0f03adb0043598d2411f24e3c32b0/FLAG0ebb8b56f [2022-11-25 18:32:57,243 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f86363-16ba-47dd-8825-9c0c3e37dbc9/bin/uautomizer-ZsLfNo2U6R/data/9e6f20fcc/d4a0f03adb0043598d2411f24e3c32b0 [2022-11-25 18:32:57,249 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 18:32:57,252 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 18:32:57,258 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 18:32:57,258 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 18:32:57,268 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 18:32:57,269 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:32:57" (1/1) ... [2022-11-25 18:32:57,271 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@286c4873 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:32:57, skipping insertion in model container [2022-11-25 18:32:57,271 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:32:57" (1/1) ... [2022-11-25 18:32:57,280 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 18:32:57,342 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 18:32:57,556 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_39f86363-16ba-47dd-8825-9c0c3e37dbc9/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bakery.1.prop1-func-interl.c[1014,1027] [2022-11-25 18:32:57,817 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:32:57,824 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 18:32:57,838 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_39f86363-16ba-47dd-8825-9c0c3e37dbc9/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bakery.1.prop1-func-interl.c[1014,1027] [2022-11-25 18:32:58,055 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:32:58,076 INFO L208 MainTranslator]: Completed translation [2022-11-25 18:32:58,077 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:32:58 WrapperNode [2022-11-25 18:32:58,077 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 18:32:58,079 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 18:32:58,079 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 18:32:58,079 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 18:32:58,088 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:32:58" (1/1) ... [2022-11-25 18:32:58,126 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:32:58" (1/1) ... [2022-11-25 18:32:58,227 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1053 [2022-11-25 18:32:58,227 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 18:32:58,228 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 18:32:58,228 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 18:32:58,228 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 18:32:58,240 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:32:58" (1/1) ... [2022-11-25 18:32:58,241 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:32:58" (1/1) ... [2022-11-25 18:32:58,258 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:32:58" (1/1) ... [2022-11-25 18:32:58,259 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:32:58" (1/1) ... [2022-11-25 18:32:58,322 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:32:58" (1/1) ... [2022-11-25 18:32:58,331 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:32:58" (1/1) ... [2022-11-25 18:32:58,358 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:32:58" (1/1) ... [2022-11-25 18:32:58,365 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:32:58" (1/1) ... [2022-11-25 18:32:58,391 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 18:32:58,392 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 18:32:58,392 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 18:32:58,392 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 18:32:58,393 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:32:58" (1/1) ... [2022-11-25 18:32:58,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:32:58,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f86363-16ba-47dd-8825-9c0c3e37dbc9/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:32:58,440 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f86363-16ba-47dd-8825-9c0c3e37dbc9/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 18:32:58,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f86363-16ba-47dd-8825-9c0c3e37dbc9/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 18:32:58,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 18:32:58,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 18:32:58,931 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 18:32:58,933 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 18:33:57,869 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 18:33:57,892 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 18:33:57,895 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 18:33:57,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:33:57 BoogieIcfgContainer [2022-11-25 18:33:57,898 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 18:33:57,901 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 18:33:57,901 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 18:33:57,905 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 18:33:57,906 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:32:57" (1/3) ... [2022-11-25 18:33:57,909 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a2ac119 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:33:57, skipping insertion in model container [2022-11-25 18:33:57,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:32:58" (2/3) ... [2022-11-25 18:33:57,911 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a2ac119 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:33:57, skipping insertion in model container [2022-11-25 18:33:57,911 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:33:57" (3/3) ... [2022-11-25 18:33:57,913 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.bakery.1.prop1-func-interl.c [2022-11-25 18:33:57,937 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 18:33:57,938 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 18:33:58,016 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 18:33:58,027 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;@6e21691d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 18:33:58,027 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 18:33:58,033 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 18:33:58,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-25 18:33:58,043 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:33:58,044 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 18:33:58,045 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:33:58,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:33:58,055 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-25 18:33:58,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:33:58,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445818662] [2022-11-25 18:33:58,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:33:58,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:33:58,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:33:58,594 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 18:33:58,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:33:58,788 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 18:33:58,790 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 18:33:58,792 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-25 18:33:58,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 18:33:58,801 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-11-25 18:33:58,806 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 18:33:58,852 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-25 18:33:58,873 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 06:33:58 BoogieIcfgContainer [2022-11-25 18:33:58,874 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 18:33:58,876 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 18:33:58,877 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 18:33:58,877 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 18:33:58,878 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:33:57" (3/4) ... [2022-11-25 18:33:58,883 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 18:33:58,883 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 18:33:58,885 INFO L158 Benchmark]: Toolchain (without parser) took 61632.44ms. Allocated memory was 138.4MB in the beginning and 889.2MB in the end (delta: 750.8MB). Free memory was 75.6MB in the beginning and 809.7MB in the end (delta: -734.1MB). Peak memory consumption was 17.5MB. Max. memory is 16.1GB. [2022-11-25 18:33:58,885 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 138.4MB. Free memory is still 106.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 18:33:58,887 INFO L158 Benchmark]: CACSL2BoogieTranslator took 819.94ms. Allocated memory was 138.4MB in the beginning and 184.5MB in the end (delta: 46.1MB). Free memory was 75.4MB in the beginning and 123.7MB in the end (delta: -48.2MB). Peak memory consumption was 16.7MB. Max. memory is 16.1GB. [2022-11-25 18:33:58,888 INFO L158 Benchmark]: Boogie Procedure Inliner took 148.36ms. Allocated memory is still 184.5MB. Free memory was 123.7MB in the beginning and 110.3MB in the end (delta: 13.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-25 18:33:58,895 INFO L158 Benchmark]: Boogie Preprocessor took 162.96ms. Allocated memory is still 184.5MB. Free memory was 110.3MB in the beginning and 104.0MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-25 18:33:58,896 INFO L158 Benchmark]: RCFGBuilder took 59506.62ms. Allocated memory was 184.5MB in the beginning and 889.2MB in the end (delta: 704.6MB). Free memory was 103.2MB in the beginning and 600.5MB in the end (delta: -497.3MB). Peak memory consumption was 502.6MB. Max. memory is 16.1GB. [2022-11-25 18:33:58,898 INFO L158 Benchmark]: TraceAbstraction took 972.75ms. Allocated memory is still 889.2MB. Free memory was 600.5MB in the beginning and 809.7MB in the end (delta: -209.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 18:33:58,899 INFO L158 Benchmark]: Witness Printer took 7.08ms. Allocated memory is still 889.2MB. Free memory is still 809.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 18:33:58,908 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 138.4MB. Free memory is still 106.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 819.94ms. Allocated memory was 138.4MB in the beginning and 184.5MB in the end (delta: 46.1MB). Free memory was 75.4MB in the beginning and 123.7MB in the end (delta: -48.2MB). Peak memory consumption was 16.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 148.36ms. Allocated memory is still 184.5MB. Free memory was 123.7MB in the beginning and 110.3MB in the end (delta: 13.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 162.96ms. Allocated memory is still 184.5MB. Free memory was 110.3MB in the beginning and 104.0MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 59506.62ms. Allocated memory was 184.5MB in the beginning and 889.2MB in the end (delta: 704.6MB). Free memory was 103.2MB in the beginning and 600.5MB in the end (delta: -497.3MB). Peak memory consumption was 502.6MB. Max. memory is 16.1GB. * TraceAbstraction took 972.75ms. Allocated memory is still 889.2MB. Free memory was 600.5MB in the beginning and 809.7MB in the end (delta: -209.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 7.08ms. Allocated memory is still 889.2MB. Free memory is still 809.7MB. 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 170, overapproximation of bitwiseAnd at line 126. 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_2 mask_SORT_2 = (SORT_2)-1 >> (sizeof(SORT_2) * 8 - 8); [L29] const SORT_2 msb_SORT_2 = (SORT_2)1 << (8 - 1); [L31] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 24); [L32] const SORT_3 msb_SORT_3 = (SORT_3)1 << (24 - 1); [L34] const SORT_4 mask_SORT_4 = (SORT_4)-1 >> (sizeof(SORT_4) * 8 - 32); [L35] const SORT_4 msb_SORT_4 = (SORT_4)1 << (32 - 1); [L37] const SORT_2 var_5 = 0; [L38] const SORT_1 var_22 = 0; [L39] const SORT_4 var_45 = 1; [L40] const SORT_4 var_46 = 0; [L41] const SORT_2 var_54 = 0; [L42] const SORT_2 var_56 = 1; [L43] const SORT_3 var_66 = 0; [L44] const SORT_4 var_153 = 2; [L45] const SORT_2 var_165 = 2; [L46] const SORT_4 var_167 = 9; [L48] SORT_1 input_53; [L49] SORT_1 input_55; [L50] SORT_1 input_60; [L51] SORT_1 input_61; [L52] SORT_1 input_65; [L53] SORT_1 input_73; [L54] SORT_1 input_80; [L55] SORT_1 input_84; [L56] SORT_1 input_85; [L57] SORT_1 input_97; [L58] SORT_1 input_101; [L59] SORT_1 input_102; [L60] SORT_1 input_121; [L61] SORT_1 input_124; [L62] SORT_1 input_140; [L63] SORT_1 input_143; [L65] SORT_2 state_6 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L66] SORT_2 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L67] SORT_2 state_10 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L68] SORT_2 state_12 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L69] SORT_2 state_14 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L70] SORT_2 state_16 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L71] SORT_2 state_18 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L72] SORT_2 state_20 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L73] SORT_1 state_23 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L74] SORT_1 state_25 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L75] SORT_1 state_27 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L76] SORT_1 state_29 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L77] SORT_1 state_31 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L78] SORT_1 state_33 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L79] SORT_1 state_35 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L80] SORT_1 state_37 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L81] SORT_1 state_39 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L82] SORT_1 state_41 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L83] SORT_1 state_43 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L85] SORT_2 init_7_arg_1 = var_5; [L86] state_6 = init_7_arg_1 [L87] SORT_2 init_9_arg_1 = var_5; [L88] state_8 = init_9_arg_1 [L89] SORT_2 init_11_arg_1 = var_5; [L90] state_10 = init_11_arg_1 [L91] SORT_2 init_13_arg_1 = var_5; [L92] state_12 = init_13_arg_1 [L93] SORT_2 init_15_arg_1 = var_5; [L94] state_14 = init_15_arg_1 [L95] SORT_2 init_17_arg_1 = var_5; [L96] state_16 = init_17_arg_1 [L97] SORT_2 init_19_arg_1 = var_5; [L98] state_18 = init_19_arg_1 [L99] SORT_2 init_21_arg_1 = var_5; [L100] state_20 = init_21_arg_1 [L101] SORT_1 init_24_arg_1 = var_22; [L102] state_23 = init_24_arg_1 [L103] SORT_1 init_26_arg_1 = var_22; [L104] state_25 = init_26_arg_1 [L105] SORT_1 init_28_arg_1 = var_22; [L106] state_27 = init_28_arg_1 [L107] SORT_1 init_30_arg_1 = var_22; [L108] state_29 = init_30_arg_1 [L109] SORT_1 init_32_arg_1 = var_22; [L110] state_31 = init_32_arg_1 [L111] SORT_1 init_34_arg_1 = var_22; [L112] state_33 = init_34_arg_1 [L113] SORT_1 init_36_arg_1 = var_22; [L114] state_35 = init_36_arg_1 [L115] SORT_1 init_38_arg_1 = var_22; [L116] state_37 = init_38_arg_1 [L117] SORT_1 init_40_arg_1 = var_22; [L118] state_39 = init_40_arg_1 [L119] SORT_1 init_42_arg_1 = var_22; [L120] state_41 = init_42_arg_1 [L121] SORT_1 init_44_arg_1 = var_22; [L122] state_43 = init_44_arg_1 VAL [init_11_arg_1=0, init_13_arg_1=0, init_15_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_21_arg_1=0, init_24_arg_1=0, init_26_arg_1=0, init_28_arg_1=0, init_30_arg_1=0, init_32_arg_1=0, init_34_arg_1=0, init_36_arg_1=0, init_38_arg_1=0, init_40_arg_1=0, init_42_arg_1=0, init_44_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=4294967295, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_6=0, state_8=0, var_153=2, var_165=2, var_167=9, var_22=0, var_45=1, var_46=0, var_5=0, var_54=0, var_56=1, var_66=0] [L125] input_53 = __VERIFIER_nondet_uchar() [L126] input_53 = input_53 & mask_SORT_1 [L127] input_55 = __VERIFIER_nondet_uchar() [L128] input_55 = input_55 & mask_SORT_1 [L129] input_60 = __VERIFIER_nondet_uchar() [L130] input_60 = input_60 & mask_SORT_1 [L131] input_61 = __VERIFIER_nondet_uchar() [L132] input_61 = input_61 & mask_SORT_1 [L133] input_65 = __VERIFIER_nondet_uchar() [L134] input_65 = input_65 & mask_SORT_1 [L135] input_73 = __VERIFIER_nondet_uchar() [L136] input_73 = input_73 & mask_SORT_1 [L137] input_80 = __VERIFIER_nondet_uchar() [L138] input_80 = input_80 & mask_SORT_1 [L139] input_84 = __VERIFIER_nondet_uchar() [L140] input_84 = input_84 & mask_SORT_1 [L141] input_85 = __VERIFIER_nondet_uchar() [L142] input_85 = input_85 & mask_SORT_1 [L143] input_97 = __VERIFIER_nondet_uchar() [L144] input_97 = input_97 & mask_SORT_1 [L145] input_101 = __VERIFIER_nondet_uchar() [L146] input_101 = input_101 & mask_SORT_1 [L147] input_102 = __VERIFIER_nondet_uchar() [L148] input_102 = input_102 & mask_SORT_1 [L149] input_121 = __VERIFIER_nondet_uchar() [L150] input_124 = __VERIFIER_nondet_uchar() [L151] input_140 = __VERIFIER_nondet_uchar() [L152] input_143 = __VERIFIER_nondet_uchar() [L155] SORT_1 var_47_arg_0 = state_31; [L156] SORT_4 var_47_arg_1 = var_45; [L157] SORT_4 var_47_arg_2 = var_46; [L158] SORT_4 var_47 = var_47_arg_0 ? var_47_arg_1 : var_47_arg_2; [L159] SORT_1 var_48_arg_0 = state_41; [L160] SORT_4 var_48_arg_1 = var_45; [L161] SORT_4 var_48_arg_2 = var_46; [L162] SORT_4 var_48 = var_48_arg_0 ? var_48_arg_1 : var_48_arg_2; [L163] SORT_4 var_49_arg_0 = var_47; [L164] SORT_4 var_49_arg_1 = var_48; [L165] SORT_4 var_49 = var_49_arg_0 + var_49_arg_1; [L166] var_49 = var_49 & mask_SORT_4 [L167] SORT_4 var_50_arg_0 = var_49; [L168] SORT_4 var_50_arg_1 = var_45; [L169] SORT_1 var_50 = var_50_arg_0 <= var_50_arg_1; [L170] SORT_1 var_51_arg_0 = ~state_43; [L171] var_51_arg_0 = var_51_arg_0 & mask_SORT_1 [L172] SORT_1 var_51_arg_1 = ~var_50; [L173] var_51_arg_1 = var_51_arg_1 & mask_SORT_1 [L174] SORT_1 var_51 = var_51_arg_0 & var_51_arg_1; [L175] var_51 = var_51 & mask_SORT_1 [L176] SORT_1 bad_52_arg_0 = var_51; [L177] CALL __VERIFIER_assert(!(bad_52_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: 0.8s, 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 18:33:58,949 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f86363-16ba-47dd-8825-9c0c3e37dbc9/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_39f86363-16ba-47dd-8825-9c0c3e37dbc9/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f86363-16ba-47dd-8825-9c0c3e37dbc9/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_39f86363-16ba-47dd-8825-9c0c3e37dbc9/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f86363-16ba-47dd-8825-9c0c3e37dbc9/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bakery.1.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f86363-16ba-47dd-8825-9c0c3e37dbc9/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_39f86363-16ba-47dd-8825-9c0c3e37dbc9/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 15ad4ed6d6c637b6ca55a4ce260ed4a2d8bde7cee87ac344e7916883bfed5f10 --- 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 18:34:01,867 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 18:34:01,870 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 18:34:01,921 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 18:34:01,921 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 18:34:01,926 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 18:34:01,930 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 18:34:01,934 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 18:34:01,936 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 18:34:01,942 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 18:34:01,944 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 18:34:01,947 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 18:34:01,948 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 18:34:01,951 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 18:34:01,953 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 18:34:01,958 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 18:34:01,960 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 18:34:01,961 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 18:34:01,963 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 18:34:01,969 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 18:34:01,973 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 18:34:01,976 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 18:34:01,978 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 18:34:01,979 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 18:34:01,990 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 18:34:01,991 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 18:34:01,991 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 18:34:01,994 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 18:34:01,995 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 18:34:01,997 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 18:34:01,997 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 18:34:01,999 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 18:34:02,026 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 18:34:02,027 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 18:34:02,028 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 18:34:02,028 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 18:34:02,029 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 18:34:02,030 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 18:34:02,030 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 18:34:02,031 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 18:34:02,032 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 18:34:02,037 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f86363-16ba-47dd-8825-9c0c3e37dbc9/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-25 18:34:02,080 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 18:34:02,080 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 18:34:02,082 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 18:34:02,082 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 18:34:02,083 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 18:34:02,084 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 18:34:02,085 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 18:34:02,085 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 18:34:02,085 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 18:34:02,086 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 18:34:02,087 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 18:34:02,087 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 18:34:02,088 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 18:34:02,088 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 18:34:02,088 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 18:34:02,089 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-25 18:34:02,089 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-25 18:34:02,089 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 18:34:02,090 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 18:34:02,090 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 18:34:02,090 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 18:34:02,090 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 18:34:02,091 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 18:34:02,091 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:34:02,091 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 18:34:02,092 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 18:34:02,092 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 18:34:02,092 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-25 18:34:02,093 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-25 18:34:02,093 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 18:34:02,093 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 18:34:02,094 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 18:34:02,094 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 18:34:02,094 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-11-25 18:34:02,095 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_39f86363-16ba-47dd-8825-9c0c3e37dbc9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f86363-16ba-47dd-8825-9c0c3e37dbc9/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 15ad4ed6d6c637b6ca55a4ce260ed4a2d8bde7cee87ac344e7916883bfed5f10 [2022-11-25 18:34:02,606 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 18:34:02,634 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 18:34:02,637 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 18:34:02,639 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 18:34:02,640 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 18:34:02,641 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f86363-16ba-47dd-8825-9c0c3e37dbc9/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bakery.1.prop1-func-interl.c [2022-11-25 18:34:06,404 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 18:34:06,782 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 18:34:06,783 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f86363-16ba-47dd-8825-9c0c3e37dbc9/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bakery.1.prop1-func-interl.c [2022-11-25 18:34:06,797 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f86363-16ba-47dd-8825-9c0c3e37dbc9/bin/uautomizer-ZsLfNo2U6R/data/bc18d1996/f1de99b2a7a74a76896938f29909d1e8/FLAGd32b208ae [2022-11-25 18:34:06,823 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f86363-16ba-47dd-8825-9c0c3e37dbc9/bin/uautomizer-ZsLfNo2U6R/data/bc18d1996/f1de99b2a7a74a76896938f29909d1e8 [2022-11-25 18:34:06,826 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 18:34:06,828 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 18:34:06,830 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 18:34:06,830 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 18:34:06,835 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 18:34:06,836 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:34:06" (1/1) ... [2022-11-25 18:34:06,837 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b2a6b80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:34:06, skipping insertion in model container [2022-11-25 18:34:06,838 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:34:06" (1/1) ... [2022-11-25 18:34:06,847 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 18:34:06,914 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 18:34:07,101 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_39f86363-16ba-47dd-8825-9c0c3e37dbc9/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bakery.1.prop1-func-interl.c[1014,1027] [2022-11-25 18:34:07,403 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:34:07,417 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 18:34:07,430 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_39f86363-16ba-47dd-8825-9c0c3e37dbc9/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bakery.1.prop1-func-interl.c[1014,1027] [2022-11-25 18:34:07,676 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:34:07,708 INFO L208 MainTranslator]: Completed translation [2022-11-25 18:34:07,708 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:34:07 WrapperNode [2022-11-25 18:34:07,708 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 18:34:07,710 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 18:34:07,710 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 18:34:07,710 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 18:34:07,720 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:34:07" (1/1) ... [2022-11-25 18:34:07,778 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:34:07" (1/1) ... [2022-11-25 18:34:07,902 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1053 [2022-11-25 18:34:07,902 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 18:34:07,903 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 18:34:07,903 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 18:34:07,903 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 18:34:07,917 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:34:07" (1/1) ... [2022-11-25 18:34:07,917 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:34:07" (1/1) ... [2022-11-25 18:34:07,926 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:34:07" (1/1) ... [2022-11-25 18:34:07,927 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:34:07" (1/1) ... [2022-11-25 18:34:07,989 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:34:07" (1/1) ... [2022-11-25 18:34:07,994 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:34:07" (1/1) ... [2022-11-25 18:34:07,999 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:34:07" (1/1) ... [2022-11-25 18:34:08,005 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:34:07" (1/1) ... [2022-11-25 18:34:08,015 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 18:34:08,016 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 18:34:08,016 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 18:34:08,017 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 18:34:08,018 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:34:07" (1/1) ... [2022-11-25 18:34:08,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:34:08,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f86363-16ba-47dd-8825-9c0c3e37dbc9/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:34:08,076 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f86363-16ba-47dd-8825-9c0c3e37dbc9/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 18:34:08,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f86363-16ba-47dd-8825-9c0c3e37dbc9/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 18:34:08,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 18:34:08,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 18:34:08,624 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 18:34:08,640 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 18:34:10,770 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 18:34:10,779 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 18:34:10,781 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 18:34:10,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:34:10 BoogieIcfgContainer [2022-11-25 18:34:10,784 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 18:34:10,787 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 18:34:10,787 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 18:34:10,791 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 18:34:10,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:34:06" (1/3) ... [2022-11-25 18:34:10,795 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@709ffbd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:34:10, skipping insertion in model container [2022-11-25 18:34:10,795 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:34:07" (2/3) ... [2022-11-25 18:34:10,796 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@709ffbd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:34:10, skipping insertion in model container [2022-11-25 18:34:10,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:34:10" (3/3) ... [2022-11-25 18:34:10,799 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.bakery.1.prop1-func-interl.c [2022-11-25 18:34:10,823 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 18:34:10,823 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 18:34:10,902 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 18:34:10,910 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;@1afd9825, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 18:34:10,911 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 18:34:10,916 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 18:34:10,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-25 18:34:10,927 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:34:10,927 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 18:34:10,928 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:34:10,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:34:10,939 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-25 18:34:10,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:34:10,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1406907743] [2022-11-25 18:34:10,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:34:10,967 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 18:34:10,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f86363-16ba-47dd-8825-9c0c3e37dbc9/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 18:34:10,974 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f86363-16ba-47dd-8825-9c0c3e37dbc9/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 18:34:10,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f86363-16ba-47dd-8825-9c0c3e37dbc9/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 18:34:11,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:34:11,346 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-25 18:34:11,359 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:34:11,712 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 18:34:11,713 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:34:11,714 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:34:11,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1406907743] [2022-11-25 18:34:11,715 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1406907743] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:34:11,715 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:34:11,715 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 18:34:11,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555534505] [2022-11-25 18:34:11,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:34:11,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 18:34:11,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:34:11,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 18:34:11,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 18:34:11,784 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 18:34:12,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:34:12,178 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-25 18:34:12,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 18:34:12,182 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 18:34:12,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:34:12,192 INFO L225 Difference]: With dead ends: 20 [2022-11-25 18:34:12,193 INFO L226 Difference]: Without dead ends: 11 [2022-11-25 18:34:12,196 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 18:34:12,203 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 18:34:12,205 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 18:34:12,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-25 18:34:12,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-25 18:34:12,245 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 18:34:12,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-25 18:34:12,248 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-25 18:34:12,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:34:12,248 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-25 18:34:12,249 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 18:34:12,249 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-25 18:34:12,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-25 18:34:12,250 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:34:12,250 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-25 18:34:12,270 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f86363-16ba-47dd-8825-9c0c3e37dbc9/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 18:34:12,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f86363-16ba-47dd-8825-9c0c3e37dbc9/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 18:34:12,464 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:34:12,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:34:12,465 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-25 18:34:12,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:34:12,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [746148802] [2022-11-25 18:34:12,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:34:12,468 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 18:34:12,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f86363-16ba-47dd-8825-9c0c3e37dbc9/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 18:34:12,471 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f86363-16ba-47dd-8825-9c0c3e37dbc9/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 18:34:12,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f86363-16ba-47dd-8825-9c0c3e37dbc9/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 18:34:13,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:34:13,244 INFO L263 TraceCheckSpWp]: Trace formula consists of 920 conjuncts, 91 conjunts are in the unsatisfiable core [2022-11-25 18:34:13,260 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:34:14,427 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 18:34:14,427 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 18:34:38,141 WARN L233 SmtUtils]: Spent 21.50s on a formula simplification that was a NOOP. DAG size: 250 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 18:34:38,915 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 18:34:38,915 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:34:38,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [746148802] [2022-11-25 18:34:38,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [746148802] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 18:34:38,922 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 18:34:38,922 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-11-25 18:34:38,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723472124] [2022-11-25 18:34:38,923 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 18:34:38,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 18:34:38,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:34:38,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 18:34:38,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-25 18:34:38,929 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 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 18:34:44,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:34:44,346 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-11-25 18:34:44,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 18:34:44,347 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 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 18:34:44,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:34:44,348 INFO L225 Difference]: With dead ends: 16 [2022-11-25 18:34:44,348 INFO L226 Difference]: Without dead ends: 14 [2022-11-25 18:34:44,350 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 27.6s TimeCoverageRelationStatistics Valid=37, Invalid=71, Unknown=2, NotChecked=0, Total=110 [2022-11-25 18:34:44,352 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 11 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-25 18:34:44,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 18 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-25 18:34:44,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-25 18:34:44,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-11-25 18:34:44,359 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 18:34:44,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-11-25 18:34:44,360 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-11-25 18:34:44,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:34:44,361 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-11-25 18:34:44,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 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 18:34:44,361 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-11-25 18:34:44,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-25 18:34:44,362 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:34:44,362 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-25 18:34:44,383 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f86363-16ba-47dd-8825-9c0c3e37dbc9/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)] Forceful destruction successful, exit code 0 [2022-11-25 18:34:44,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f86363-16ba-47dd-8825-9c0c3e37dbc9/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 18:34:44,575 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:34:44,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:34:44,576 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-11-25 18:34:44,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:34:44,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [189657479] [2022-11-25 18:34:44,580 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 18:34:44,580 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 18:34:44,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f86363-16ba-47dd-8825-9c0c3e37dbc9/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 18:34:44,587 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f86363-16ba-47dd-8825-9c0c3e37dbc9/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 18:34:44,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f86363-16ba-47dd-8825-9c0c3e37dbc9/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 18:34:45,495 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 18:34:45,495 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 18:34:45,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 1743 conjuncts, 217 conjunts are in the unsatisfiable core [2022-11-25 18:34:45,558 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:34:51,251 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 18:34:51,251 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 18:35:34,961 WARN L233 SmtUtils]: Spent 41.09s on a formula simplification that was a NOOP. DAG size: 218 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 18:37:49,696 WARN L233 SmtUtils]: Spent 1.97m on a formula simplification that was a NOOP. DAG size: 1435 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 18:37:54,589 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 18:37:54,589 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:37:54,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [189657479] [2022-11-25 18:37:54,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [189657479] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 18:37:54,590 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 18:37:54,590 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-11-25 18:37:54,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721265248] [2022-11-25 18:37:54,591 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 18:37:54,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 18:37:54,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:37:54,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 18:37:54,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=64, Unknown=2, NotChecked=0, Total=90 [2022-11-25 18:37:54,594 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 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 18:38:03,889 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:38:14,024 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:38:16,753 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:38:19,534 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:38:20,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:38:20,399 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2022-11-25 18:38:20,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 18:38:20,399 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 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 [2022-11-25 18:38:20,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:38:20,400 INFO L225 Difference]: With dead ends: 19 [2022-11-25 18:38:20,401 INFO L226 Difference]: Without dead ends: 17 [2022-11-25 18:38:20,401 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 188.5s TimeCoverageRelationStatistics Valid=57, Invalid=120, Unknown=5, NotChecked=0, Total=182 [2022-11-25 18:38:20,403 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 21 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 3 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.4s IncrementalHoareTripleChecker+Time [2022-11-25 18:38:20,403 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 21 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 25 Invalid, 4 Unknown, 0 Unchecked, 13.4s Time] [2022-11-25 18:38:20,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-25 18:38:20,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2022-11-25 18:38:20,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:38:20,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-11-25 18:38:20,416 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 11 [2022-11-25 18:38:20,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:38:20,416 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-11-25 18:38:20,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 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 18:38:20,417 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-11-25 18:38:20,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-25 18:38:20,418 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:38:20,418 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1] [2022-11-25 18:38:20,459 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f86363-16ba-47dd-8825-9c0c3e37dbc9/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)] Forceful destruction successful, exit code 0 [2022-11-25 18:38:20,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f86363-16ba-47dd-8825-9c0c3e37dbc9/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 18:38:20,635 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:38:20,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:38:20,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1580781475, now seen corresponding path program 3 times [2022-11-25 18:38:20,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:38:20,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2083081023] [2022-11-25 18:38:20,638 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-25 18:38:20,638 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 18:38:20,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f86363-16ba-47dd-8825-9c0c3e37dbc9/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 18:38:20,640 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f86363-16ba-47dd-8825-9c0c3e37dbc9/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 18:38:20,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f86363-16ba-47dd-8825-9c0c3e37dbc9/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 (5)] Waiting until timeout for monitored process [2022-11-25 18:38:21,980 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-11-25 18:38:21,981 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 18:38:22,063 INFO L263 TraceCheckSpWp]: Trace formula consists of 2566 conjuncts, 339 conjunts are in the unsatisfiable core [2022-11-25 18:38:22,116 INFO L286 TraceCheckSpWp]: Computing forward predicates...