./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.adding.3.prop1-func-interl.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea0cd03-81a1-4c09-94bd-6e3e0aa75e3b/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea0cd03-81a1-4c09-94bd-6e3e0aa75e3b/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea0cd03-81a1-4c09-94bd-6e3e0aa75e3b/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea0cd03-81a1-4c09-94bd-6e3e0aa75e3b/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.adding.3.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea0cd03-81a1-4c09-94bd-6e3e0aa75e3b/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea0cd03-81a1-4c09-94bd-6e3e0aa75e3b/bin/uautomizer-tPACEb0tL8 --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 2c894e1d7fb4f29f2261c2da9b84160dfd404379400898d35a0af0a1a91c3f60 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 10:53:50,976 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 10:53:50,978 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 10:53:51,003 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 10:53:51,010 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 10:53:51,012 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 10:53:51,014 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 10:53:51,015 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 10:53:51,017 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 10:53:51,018 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 10:53:51,019 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 10:53:51,021 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 10:53:51,021 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 10:53:51,023 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 10:53:51,024 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 10:53:51,025 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 10:53:51,026 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 10:53:51,027 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 10:53:51,029 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 10:53:51,031 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 10:53:51,032 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 10:53:51,034 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 10:53:51,035 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 10:53:51,036 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 10:53:51,040 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 10:53:51,040 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 10:53:51,041 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 10:53:51,042 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 10:53:51,042 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 10:53:51,043 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 10:53:51,044 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 10:53:51,045 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 10:53:51,045 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 10:53:51,046 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 10:53:51,047 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 10:53:51,048 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 10:53:51,049 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 10:53:51,049 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 10:53:51,049 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 10:53:51,050 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 10:53:51,051 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 10:53:51,052 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea0cd03-81a1-4c09-94bd-6e3e0aa75e3b/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-16 10:53:51,076 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 10:53:51,076 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 10:53:51,076 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 10:53:51,077 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 10:53:51,077 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 10:53:51,078 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 10:53:51,078 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 10:53:51,079 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 10:53:51,079 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 10:53:51,079 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 10:53:51,079 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 10:53:51,080 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 10:53:51,080 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 10:53:51,080 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 10:53:51,080 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 10:53:51,081 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 10:53:51,081 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 10:53:51,081 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 10:53:51,081 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 10:53:51,082 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 10:53:51,082 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 10:53:51,082 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 10:53:51,082 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 10:53:51,083 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 10:53:51,083 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 10:53:51,083 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 10:53:51,083 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 10:53:51,083 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 10:53:51,084 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 10:53:51,084 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 10:53:51,084 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea0cd03-81a1-4c09-94bd-6e3e0aa75e3b/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea0cd03-81a1-4c09-94bd-6e3e0aa75e3b/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2c894e1d7fb4f29f2261c2da9b84160dfd404379400898d35a0af0a1a91c3f60 [2022-11-16 10:53:51,369 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 10:53:51,400 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 10:53:51,404 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 10:53:51,406 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 10:53:51,407 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 10:53:51,409 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea0cd03-81a1-4c09-94bd-6e3e0aa75e3b/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.adding.3.prop1-func-interl.c [2022-11-16 10:53:51,467 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea0cd03-81a1-4c09-94bd-6e3e0aa75e3b/bin/uautomizer-tPACEb0tL8/data/ba5df0f34/533eb2ec94764885acf7f5d2e28f239e/FLAGb2fde112f [2022-11-16 10:53:51,952 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 10:53:51,953 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea0cd03-81a1-4c09-94bd-6e3e0aa75e3b/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.adding.3.prop1-func-interl.c [2022-11-16 10:53:51,963 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea0cd03-81a1-4c09-94bd-6e3e0aa75e3b/bin/uautomizer-tPACEb0tL8/data/ba5df0f34/533eb2ec94764885acf7f5d2e28f239e/FLAGb2fde112f [2022-11-16 10:53:52,275 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea0cd03-81a1-4c09-94bd-6e3e0aa75e3b/bin/uautomizer-tPACEb0tL8/data/ba5df0f34/533eb2ec94764885acf7f5d2e28f239e [2022-11-16 10:53:52,278 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 10:53:52,279 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 10:53:52,281 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 10:53:52,281 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 10:53:52,285 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 10:53:52,286 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 10:53:52" (1/1) ... [2022-11-16 10:53:52,287 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a3decad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:53:52, skipping insertion in model container [2022-11-16 10:53:52,287 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 10:53:52" (1/1) ... [2022-11-16 10:53:52,295 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 10:53:52,324 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 10:53:52,489 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea0cd03-81a1-4c09-94bd-6e3e0aa75e3b/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.adding.3.prop1-func-interl.c[1014,1027] [2022-11-16 10:53:52,649 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 10:53:52,653 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 10:53:52,663 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea0cd03-81a1-4c09-94bd-6e3e0aa75e3b/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.adding.3.prop1-func-interl.c[1014,1027] [2022-11-16 10:53:52,738 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 10:53:52,750 INFO L208 MainTranslator]: Completed translation [2022-11-16 10:53:52,751 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:53:52 WrapperNode [2022-11-16 10:53:52,751 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 10:53:52,752 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 10:53:52,752 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 10:53:52,752 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 10:53:52,760 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:53:52" (1/1) ... [2022-11-16 10:53:52,790 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:53:52" (1/1) ... [2022-11-16 10:53:52,867 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 711 [2022-11-16 10:53:52,881 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 10:53:52,883 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 10:53:52,884 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 10:53:52,884 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 10:53:52,894 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:53:52" (1/1) ... [2022-11-16 10:53:52,895 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:53:52" (1/1) ... [2022-11-16 10:53:52,907 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:53:52" (1/1) ... [2022-11-16 10:53:52,915 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:53:52" (1/1) ... [2022-11-16 10:53:52,947 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:53:52" (1/1) ... [2022-11-16 10:53:52,954 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:53:52" (1/1) ... [2022-11-16 10:53:52,958 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:53:52" (1/1) ... [2022-11-16 10:53:52,984 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:53:52" (1/1) ... [2022-11-16 10:53:52,992 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 10:53:53,001 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 10:53:53,001 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 10:53:53,001 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 10:53:53,002 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:53:52" (1/1) ... [2022-11-16 10:53:53,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 10:53:53,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea0cd03-81a1-4c09-94bd-6e3e0aa75e3b/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 10:53:53,036 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea0cd03-81a1-4c09-94bd-6e3e0aa75e3b/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 10:53:53,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea0cd03-81a1-4c09-94bd-6e3e0aa75e3b/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 10:53:53,090 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 10:53:53,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 10:53:53,305 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 10:53:53,307 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 10:53:54,396 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 10:53:54,411 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 10:53:54,411 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 10:53:54,414 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 10:53:54 BoogieIcfgContainer [2022-11-16 10:53:54,414 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 10:53:54,418 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 10:53:54,418 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 10:53:54,422 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 10:53:54,422 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 10:53:52" (1/3) ... [2022-11-16 10:53:54,423 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7627278a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 10:53:54, skipping insertion in model container [2022-11-16 10:53:54,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:53:52" (2/3) ... [2022-11-16 10:53:54,424 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7627278a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 10:53:54, skipping insertion in model container [2022-11-16 10:53:54,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 10:53:54" (3/3) ... [2022-11-16 10:53:54,426 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.adding.3.prop1-func-interl.c [2022-11-16 10:53:54,447 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 10:53:54,447 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 10:53:54,536 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 10:53:54,543 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;@69dd5e74, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 10:53:54,543 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 10:53:54,560 INFO L276 IsEmpty]: Start isEmpty. Operand has 131 states, 129 states have (on average 1.6511627906976745) internal successors, (213), 130 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:53:54,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-16 10:53:54,570 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 10:53:54,571 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 10:53:54,587 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 10:53:54,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:53:54,595 INFO L85 PathProgramCache]: Analyzing trace with hash 753767930, now seen corresponding path program 1 times [2022-11-16 10:53:54,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:53:54,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681617989] [2022-11-16 10:53:54,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:53:54,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:53:54,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:53:55,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:53:55,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:53:55,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681617989] [2022-11-16 10:53:55,108 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681617989] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:53:55,108 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:53:55,109 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 10:53:55,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099668769] [2022-11-16 10:53:55,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:53:55,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 10:53:55,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:53:55,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 10:53:55,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 10:53:55,161 INFO L87 Difference]: Start difference. First operand has 131 states, 129 states have (on average 1.6511627906976745) internal successors, (213), 130 states have internal predecessors, (213), 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 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:53:55,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 10:53:55,309 INFO L93 Difference]: Finished difference Result 406 states and 672 transitions. [2022-11-16 10:53:55,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 10:53:55,312 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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 23 [2022-11-16 10:53:55,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 10:53:55,331 INFO L225 Difference]: With dead ends: 406 [2022-11-16 10:53:55,331 INFO L226 Difference]: Without dead ends: 277 [2022-11-16 10:53:55,335 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 10:53:55,339 INFO L413 NwaCegarLoop]: 250 mSDtfsCounter, 597 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 597 SdHoareTripleChecker+Valid, 538 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 10:53:55,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [597 Valid, 538 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 10:53:55,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2022-11-16 10:53:55,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 129. [2022-11-16 10:53:55,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 128 states have (on average 1.6328125) internal successors, (209), 128 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:53:55,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 209 transitions. [2022-11-16 10:53:55,383 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 209 transitions. Word has length 23 [2022-11-16 10:53:55,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 10:53:55,384 INFO L495 AbstractCegarLoop]: Abstraction has 129 states and 209 transitions. [2022-11-16 10:53:55,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:53:55,384 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 209 transitions. [2022-11-16 10:53:55,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 10:53:55,385 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 10:53:55,385 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 10:53:55,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 10:53:55,386 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 10:53:55,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:53:55,387 INFO L85 PathProgramCache]: Analyzing trace with hash 1893694406, now seen corresponding path program 1 times [2022-11-16 10:53:55,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:53:55,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613749963] [2022-11-16 10:53:55,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:53:55,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:53:55,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:53:55,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:53:55,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:53:55,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613749963] [2022-11-16 10:53:55,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613749963] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:53:55,539 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:53:55,540 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 10:53:55,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134097250] [2022-11-16 10:53:55,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:53:55,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 10:53:55,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:53:55,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 10:53:55,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 10:53:55,544 INFO L87 Difference]: Start difference. First operand 129 states and 209 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:53:55,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 10:53:55,624 INFO L93 Difference]: Finished difference Result 496 states and 811 transitions. [2022-11-16 10:53:55,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 10:53:55,625 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 10:53:55,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 10:53:55,627 INFO L225 Difference]: With dead ends: 496 [2022-11-16 10:53:55,627 INFO L226 Difference]: Without dead ends: 369 [2022-11-16 10:53:55,628 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 10:53:55,629 INFO L413 NwaCegarLoop]: 244 mSDtfsCounter, 587 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 587 SdHoareTripleChecker+Valid, 678 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 10:53:55,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [587 Valid, 678 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 10:53:55,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2022-11-16 10:53:55,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 131. [2022-11-16 10:53:55,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 130 states have (on average 1.623076923076923) internal successors, (211), 130 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:53:55,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 211 transitions. [2022-11-16 10:53:55,641 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 211 transitions. Word has length 24 [2022-11-16 10:53:55,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 10:53:55,641 INFO L495 AbstractCegarLoop]: Abstraction has 131 states and 211 transitions. [2022-11-16 10:53:55,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:53:55,642 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 211 transitions. [2022-11-16 10:53:55,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-16 10:53:55,643 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 10:53:55,643 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 10:53:55,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 10:53:55,643 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 10:53:55,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:53:55,644 INFO L85 PathProgramCache]: Analyzing trace with hash -1635447916, now seen corresponding path program 1 times [2022-11-16 10:53:55,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:53:55,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309966750] [2022-11-16 10:53:55,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:53:55,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:53:55,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:53:56,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:53:56,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:53:56,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309966750] [2022-11-16 10:53:56,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309966750] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:53:56,101 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:53:56,107 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 10:53:56,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462631027] [2022-11-16 10:53:56,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:53:56,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 10:53:56,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:53:56,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 10:53:56,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-16 10:53:56,109 INFO L87 Difference]: Start difference. First operand 131 states and 211 transitions. Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:53:56,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 10:53:56,272 INFO L93 Difference]: Finished difference Result 511 states and 830 transitions. [2022-11-16 10:53:56,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 10:53:56,273 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-11-16 10:53:56,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 10:53:56,275 INFO L225 Difference]: With dead ends: 511 [2022-11-16 10:53:56,275 INFO L226 Difference]: Without dead ends: 382 [2022-11-16 10:53:56,279 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2022-11-16 10:53:56,286 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 1305 mSDsluCounter, 673 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1305 SdHoareTripleChecker+Valid, 913 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 10:53:56,287 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1305 Valid, 913 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 10:53:56,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2022-11-16 10:53:56,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 134. [2022-11-16 10:53:56,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 133 states have (on average 1.6240601503759398) internal successors, (216), 133 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:53:56,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 216 transitions. [2022-11-16 10:53:56,300 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 216 transitions. Word has length 25 [2022-11-16 10:53:56,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 10:53:56,300 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 216 transitions. [2022-11-16 10:53:56,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:53:56,301 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 216 transitions. [2022-11-16 10:53:56,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-16 10:53:56,302 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 10:53:56,302 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 10:53:56,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 10:53:56,302 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 10:53:56,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:53:56,303 INFO L85 PathProgramCache]: Analyzing trace with hash -1854338260, now seen corresponding path program 1 times [2022-11-16 10:53:56,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:53:56,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807696496] [2022-11-16 10:53:56,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:53:56,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:53:56,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:53:56,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:53:56,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:53:56,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807696496] [2022-11-16 10:53:56,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807696496] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:53:56,707 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:53:56,707 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 10:53:56,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297079351] [2022-11-16 10:53:56,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:53:56,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 10:53:56,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:53:56,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 10:53:56,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 10:53:56,710 INFO L87 Difference]: Start difference. First operand 134 states and 216 transitions. Second operand has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:53:56,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 10:53:56,951 INFO L93 Difference]: Finished difference Result 521 states and 846 transitions. [2022-11-16 10:53:56,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 10:53:56,952 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 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 26 [2022-11-16 10:53:56,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 10:53:56,956 INFO L225 Difference]: With dead ends: 521 [2022-11-16 10:53:56,956 INFO L226 Difference]: Without dead ends: 389 [2022-11-16 10:53:56,958 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-11-16 10:53:56,968 INFO L413 NwaCegarLoop]: 427 mSDtfsCounter, 939 mSDsluCounter, 661 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 939 SdHoareTripleChecker+Valid, 1088 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 10:53:56,970 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [939 Valid, 1088 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 10:53:56,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2022-11-16 10:53:56,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 134. [2022-11-16 10:53:56,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 133 states have (on average 1.6240601503759398) internal successors, (216), 133 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:53:56,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 216 transitions. [2022-11-16 10:53:56,989 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 216 transitions. Word has length 26 [2022-11-16 10:53:56,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 10:53:56,990 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 216 transitions. [2022-11-16 10:53:56,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:53:56,990 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 216 transitions. [2022-11-16 10:53:56,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-16 10:53:56,991 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 10:53:56,991 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 10:53:56,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 10:53:56,992 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 10:53:56,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:53:56,993 INFO L85 PathProgramCache]: Analyzing trace with hash 2047602026, now seen corresponding path program 1 times [2022-11-16 10:53:56,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:53:56,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847955195] [2022-11-16 10:53:56,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:53:56,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:53:57,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 10:53:57,060 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 10:53:57,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 10:53:57,156 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 10:53:57,157 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-16 10:53:57,158 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-16 10:53:57,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 10:53:57,166 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-16 10:53:57,169 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 10:53:57,228 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-16 10:53:57,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 10:53:57 BoogieIcfgContainer [2022-11-16 10:53:57,256 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 10:53:57,257 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 10:53:57,257 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 10:53:57,257 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 10:53:57,258 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 10:53:54" (3/4) ... [2022-11-16 10:53:57,262 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-16 10:53:57,262 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 10:53:57,262 INFO L158 Benchmark]: Toolchain (without parser) took 4983.19ms. Allocated memory was 127.9MB in the beginning and 165.7MB in the end (delta: 37.7MB). Free memory was 88.5MB in the beginning and 66.2MB in the end (delta: 22.4MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2022-11-16 10:53:57,263 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 127.9MB. Free memory is still 106.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 10:53:57,264 INFO L158 Benchmark]: CACSL2BoogieTranslator took 470.38ms. Allocated memory is still 127.9MB. Free memory was 88.4MB in the beginning and 91.0MB in the end (delta: -2.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-16 10:53:57,264 INFO L158 Benchmark]: Boogie Procedure Inliner took 130.61ms. Allocated memory is still 127.9MB. Free memory was 91.0MB in the beginning and 83.5MB in the end (delta: 7.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-16 10:53:57,265 INFO L158 Benchmark]: Boogie Preprocessor took 117.03ms. Allocated memory is still 127.9MB. Free memory was 83.5MB in the beginning and 79.4MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-16 10:53:57,267 INFO L158 Benchmark]: RCFGBuilder took 1413.58ms. Allocated memory was 127.9MB in the beginning and 165.7MB in the end (delta: 37.7MB). Free memory was 79.4MB in the beginning and 70.4MB in the end (delta: 9.0MB). Peak memory consumption was 54.7MB. Max. memory is 16.1GB. [2022-11-16 10:53:57,267 INFO L158 Benchmark]: TraceAbstraction took 2838.90ms. Allocated memory is still 165.7MB. Free memory was 69.4MB in the beginning and 66.2MB in the end (delta: 3.2MB). Peak memory consumption was 2.2MB. Max. memory is 16.1GB. [2022-11-16 10:53:57,267 INFO L158 Benchmark]: Witness Printer took 4.93ms. Allocated memory is still 165.7MB. Free memory is still 66.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 10:53:57,270 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 127.9MB. Free memory is still 106.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 470.38ms. Allocated memory is still 127.9MB. Free memory was 88.4MB in the beginning and 91.0MB in the end (delta: -2.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 130.61ms. Allocated memory is still 127.9MB. Free memory was 91.0MB in the beginning and 83.5MB in the end (delta: 7.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 117.03ms. Allocated memory is still 127.9MB. Free memory was 83.5MB in the beginning and 79.4MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1413.58ms. Allocated memory was 127.9MB in the beginning and 165.7MB in the end (delta: 37.7MB). Free memory was 79.4MB in the beginning and 70.4MB in the end (delta: 9.0MB). Peak memory consumption was 54.7MB. Max. memory is 16.1GB. * TraceAbstraction took 2838.90ms. Allocated memory is still 165.7MB. Free memory was 69.4MB in the beginning and 66.2MB in the end (delta: 3.2MB). Peak memory consumption was 2.2MB. Max. memory is 16.1GB. * Witness Printer took 4.93ms. Allocated memory is still 165.7MB. Free memory is still 66.2MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 20]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 104, overapproximation of shiftRight at line 108, overapproximation of bitwiseAnd at line 117, overapproximation of bitwiseComplement at line 114, overapproximation of bitwiseXor at line 101. 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 - 5); [L29] const SORT_2 msb_SORT_2 = (SORT_2)1 << (5 - 1); [L31] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 16); [L32] const SORT_3 msb_SORT_3 = (SORT_3)1 << (16 - 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_3 var_5 = 0; [L38] const SORT_1 var_12 = 0; [L39] const SORT_4 var_27 = 637; [L40] const SORT_3 var_28 = 1; [L41] const SORT_3 var_30 = 0; [L42] const SORT_4 var_32 = 16; [L43] const SORT_4 var_79 = 300; [L45] SORT_1 input_37; [L46] SORT_1 input_38; [L47] SORT_1 input_43; [L48] SORT_1 input_48; [L49] SORT_1 input_52; [L50] SORT_1 input_57; [L52] SORT_3 state_6 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L53] SORT_3 state_8 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L54] SORT_3 state_10 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L55] SORT_1 state_13 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L56] SORT_1 state_15 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L57] SORT_1 state_17 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L58] SORT_1 state_19 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L59] SORT_1 state_21 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L60] SORT_1 state_23 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L61] SORT_1 state_25 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L63] SORT_3 init_7_arg_1 = var_5; [L64] state_6 = init_7_arg_1 [L65] SORT_3 init_9_arg_1 = var_5; [L66] state_8 = init_9_arg_1 [L67] SORT_3 init_11_arg_1 = var_5; [L68] state_10 = init_11_arg_1 [L69] SORT_1 init_14_arg_1 = var_12; [L70] state_13 = init_14_arg_1 [L71] SORT_1 init_16_arg_1 = var_12; [L72] state_15 = init_16_arg_1 [L73] SORT_1 init_18_arg_1 = var_12; [L74] state_17 = init_18_arg_1 [L75] SORT_1 init_20_arg_1 = var_12; [L76] state_19 = init_20_arg_1 [L77] SORT_1 init_22_arg_1 = var_12; [L78] state_21 = init_22_arg_1 [L79] SORT_1 init_24_arg_1 = var_12; [L80] state_23 = init_24_arg_1 [L81] SORT_1 init_26_arg_1 = var_12; [L82] state_25 = init_26_arg_1 VAL [init_11_arg_1=0, init_14_arg_1=0, init_16_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_22_arg_1=0, init_24_arg_1=0, init_26_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, mask_SORT_1=1, mask_SORT_2=31, mask_SORT_3=65535, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=16, msb_SORT_3=32768, msb_SORT_4=2147483648, state_10=0, state_13=0, state_15=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_6=0, state_8=0, var_12=0, var_27=637, var_28=1, var_30=0, var_32=16, var_5=0, var_79=300] [L85] input_37 = __VERIFIER_nondet_uchar() [L86] input_37 = input_37 & mask_SORT_1 VAL [init_11_arg_1=0, init_14_arg_1=0, init_16_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_22_arg_1=0, init_24_arg_1=0, init_26_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, input_37=0, mask_SORT_1=1, mask_SORT_2=31, mask_SORT_3=65535, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=16, msb_SORT_3=32768, msb_SORT_4=2147483648, state_10=0, state_13=0, state_15=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_6=0, state_8=0, var_12=0, var_27=637, var_28=1, var_30=0, var_32=16, var_5=0, var_79=300] [L87] input_38 = __VERIFIER_nondet_uchar() [L88] input_38 = input_38 & mask_SORT_1 VAL [init_11_arg_1=0, init_14_arg_1=0, init_16_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_22_arg_1=0, init_24_arg_1=0, init_26_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, input_37=0, input_38=0, mask_SORT_1=1, mask_SORT_2=31, mask_SORT_3=65535, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=16, msb_SORT_3=32768, msb_SORT_4=2147483648, state_10=0, state_13=0, state_15=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_6=0, state_8=0, var_12=0, var_27=637, var_28=1, var_30=0, var_32=16, var_5=0, var_79=300] [L89] input_43 = __VERIFIER_nondet_uchar() [L90] input_43 = input_43 & mask_SORT_1 VAL [init_11_arg_1=0, init_14_arg_1=0, init_16_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_22_arg_1=0, init_24_arg_1=0, init_26_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, input_37=0, input_38=0, input_43=0, mask_SORT_1=1, mask_SORT_2=31, mask_SORT_3=65535, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=16, msb_SORT_3=32768, msb_SORT_4=2147483648, state_10=0, state_13=0, state_15=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_6=0, state_8=0, var_12=0, var_27=637, var_28=1, var_30=0, var_32=16, var_5=0, var_79=300] [L91] input_48 = __VERIFIER_nondet_uchar() [L92] input_48 = input_48 & mask_SORT_1 VAL [init_11_arg_1=0, init_14_arg_1=0, init_16_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_22_arg_1=0, init_24_arg_1=0, init_26_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, input_37=0, input_38=0, input_43=0, input_48=0, mask_SORT_1=1, mask_SORT_2=31, mask_SORT_3=65535, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=16, msb_SORT_3=32768, msb_SORT_4=2147483648, state_10=0, state_13=0, state_15=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_6=0, state_8=0, var_12=0, var_27=637, var_28=1, var_30=0, var_32=16, var_5=0, var_79=300] [L93] input_52 = __VERIFIER_nondet_uchar() [L94] input_52 = input_52 & mask_SORT_1 VAL [init_11_arg_1=0, init_14_arg_1=0, init_16_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_22_arg_1=0, init_24_arg_1=0, init_26_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, input_37=0, input_38=0, input_43=0, input_48=0, input_52=0, mask_SORT_1=1, mask_SORT_2=31, mask_SORT_3=65535, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=16, msb_SORT_3=32768, msb_SORT_4=2147483648, state_10=0, state_13=0, state_15=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_6=0, state_8=0, var_12=0, var_27=637, var_28=1, var_30=0, var_32=16, var_5=0, var_79=300] [L95] input_57 = __VERIFIER_nondet_uchar() [L96] input_57 = input_57 & mask_SORT_1 VAL [init_11_arg_1=0, init_14_arg_1=0, init_16_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_22_arg_1=0, init_24_arg_1=0, init_26_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, input_37=0, input_38=0, input_43=0, input_48=0, input_52=0, input_57=0, mask_SORT_1=1, mask_SORT_2=31, mask_SORT_3=65535, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=16, msb_SORT_3=32768, msb_SORT_4=2147483648, state_10=0, state_13=0, state_15=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_6=0, state_8=0, var_12=0, var_27=637, var_28=1, var_30=0, var_32=16, var_5=0, var_79=300] [L99] SORT_3 var_29_arg_0 = var_28; [L100] SORT_3 var_29_arg_1 = state_6; [L101] SORT_3 var_29 = var_29_arg_0 ^ var_29_arg_1; [L102] SORT_3 var_31_arg_0 = var_29; [L103] SORT_3 var_31_arg_1 = var_30; [L104] SORT_4 var_31 = ((SORT_4)var_31_arg_0 << 16) | var_31_arg_1; [L105] SORT_4 var_33_arg_0 = var_31; [L106] var_33_arg_0 = (var_33_arg_0 & msb_SORT_4) ? (var_33_arg_0 | ~mask_SORT_4) : (var_33_arg_0 & mask_SORT_4) [L107] SORT_4 var_33_arg_1 = var_32; [L108] SORT_4 var_33 = (int)var_33_arg_0 >> var_33_arg_1; [L109] var_33 = (var_33_arg_0 & msb_SORT_4) ? (var_33 | ~(mask_SORT_4 >> var_33_arg_1)) : var_33 VAL [init_11_arg_1=0, init_14_arg_1=0, init_16_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_22_arg_1=0, init_24_arg_1=0, init_26_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, input_37=0, input_38=0, input_43=0, input_48=0, input_52=0, input_57=0, mask_SORT_1=1, mask_SORT_2=31, mask_SORT_3=65535, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=16, msb_SORT_3=32768, msb_SORT_4=2147483648, state_10=0, state_13=0, state_15=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_6=0, state_8=0, var_12=0, var_27=637, var_28=1, var_29=1, var_29_arg_0=1, var_29_arg_1=0, var_30=0, var_31=65536, var_31_arg_0=1, var_31_arg_1=0, var_32=16, var_33=2147483650, var_33_arg_0=0, var_33_arg_1=16, var_5=0, var_79=300] [L110] var_33 = var_33 & mask_SORT_4 VAL [init_11_arg_1=0, init_14_arg_1=0, init_16_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_22_arg_1=0, init_24_arg_1=0, init_26_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, input_37=0, input_38=0, input_43=0, input_48=0, input_52=0, input_57=0, mask_SORT_1=1, mask_SORT_2=31, mask_SORT_3=65535, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=16, msb_SORT_3=32768, msb_SORT_4=2147483648, state_10=0, state_13=0, state_15=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_6=0, state_8=0, var_12=0, var_27=637, var_28=1, var_29=1, var_29_arg_0=1, var_29_arg_1=0, var_30=0, var_31=65536, var_31_arg_0=1, var_31_arg_1=0, var_32=16, var_33=637, var_33_arg_0=0, var_33_arg_1=16, var_5=0, var_79=300] [L111] SORT_4 var_34_arg_0 = var_27; [L112] SORT_4 var_34_arg_1 = var_33; [L113] SORT_1 var_34 = var_34_arg_0 == var_34_arg_1; [L114] SORT_1 var_35_arg_0 = ~state_25; VAL [init_11_arg_1=0, init_14_arg_1=0, init_16_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_22_arg_1=0, init_24_arg_1=0, init_26_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, input_37=0, input_38=0, input_43=0, input_48=0, input_52=0, input_57=0, mask_SORT_1=1, mask_SORT_2=31, mask_SORT_3=65535, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=16, msb_SORT_3=32768, msb_SORT_4=2147483648, state_10=0, state_13=0, state_15=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_6=0, state_8=0, var_12=0, var_27=637, var_28=1, var_29=1, var_29_arg_0=1, var_29_arg_1=0, var_30=0, var_31=65536, var_31_arg_0=1, var_31_arg_1=0, var_32=16, var_33=637, var_33_arg_0=0, var_33_arg_1=16, var_34=1, var_34_arg_0=637, var_34_arg_1=637, var_5=0, var_79=300] [L115] var_35_arg_0 = var_35_arg_0 & mask_SORT_1 VAL [init_11_arg_1=0, init_14_arg_1=0, init_16_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_22_arg_1=0, init_24_arg_1=0, init_26_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, input_37=0, input_38=0, input_43=0, input_48=0, input_52=0, input_57=0, mask_SORT_1=1, mask_SORT_2=31, mask_SORT_3=65535, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=16, msb_SORT_3=32768, msb_SORT_4=2147483648, state_10=0, state_13=0, state_15=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_6=0, state_8=0, var_12=0, var_27=637, var_28=1, var_29=1, var_29_arg_0=1, var_29_arg_1=0, var_30=0, var_31=65536, var_31_arg_0=1, var_31_arg_1=0, var_32=16, var_33=637, var_33_arg_0=0, var_33_arg_1=16, var_34=1, var_34_arg_0=637, var_34_arg_1=637, var_35_arg_0=1, var_5=0, var_79=300] [L116] SORT_1 var_35_arg_1 = var_34; [L117] SORT_1 var_35 = var_35_arg_0 & var_35_arg_1; VAL [init_11_arg_1=0, init_14_arg_1=0, init_16_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_22_arg_1=0, init_24_arg_1=0, init_26_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, input_37=0, input_38=0, input_43=0, input_48=0, input_52=0, input_57=0, mask_SORT_1=1, mask_SORT_2=31, mask_SORT_3=65535, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=16, msb_SORT_3=32768, msb_SORT_4=2147483648, state_10=0, state_13=0, state_15=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_6=0, state_8=0, var_12=0, var_27=637, var_28=1, var_29=1, var_29_arg_0=1, var_29_arg_1=0, var_30=0, var_31=65536, var_31_arg_0=1, var_31_arg_1=0, var_32=16, var_33=637, var_33_arg_0=0, var_33_arg_1=16, var_34=1, var_34_arg_0=637, var_34_arg_1=637, var_35=1, var_35_arg_0=1, var_35_arg_1=1, var_5=0, var_79=300] [L118] var_35 = var_35 & mask_SORT_1 VAL [init_11_arg_1=0, init_14_arg_1=0, init_16_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_22_arg_1=0, init_24_arg_1=0, init_26_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, input_37=0, input_38=0, input_43=0, input_48=0, input_52=0, input_57=0, mask_SORT_1=1, mask_SORT_2=31, mask_SORT_3=65535, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=16, msb_SORT_3=32768, msb_SORT_4=2147483648, state_10=0, state_13=0, state_15=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_6=0, state_8=0, var_12=0, var_27=637, var_28=1, var_29=1, var_29_arg_0=1, var_29_arg_1=0, var_30=0, var_31=65536, var_31_arg_0=1, var_31_arg_1=0, var_32=16, var_33=637, var_33_arg_0=0, var_33_arg_1=16, var_34=1, var_34_arg_0=637, var_34_arg_1=637, var_35=1, var_35_arg_0=1, var_35_arg_1=1, var_5=0, var_79=300] [L119] SORT_1 bad_36_arg_0 = var_35; [L120] CALL __VERIFIER_assert(!(bad_36_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, 131 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.7s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3428 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3428 mSDsluCounter, 3217 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2056 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 157 IncrementalHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 1161 mSDtfsCounter, 157 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=134occurred in iteration=3, InterpolantAutomatonStates: 28, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 889 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 124 NumberOfCodeBlocks, 124 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 94 ConstructedInterpolants, 0 QuantifiedInterpolants, 396 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-16 10:53:57,297 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea0cd03-81a1-4c09-94bd-6e3e0aa75e3b/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea0cd03-81a1-4c09-94bd-6e3e0aa75e3b/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea0cd03-81a1-4c09-94bd-6e3e0aa75e3b/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea0cd03-81a1-4c09-94bd-6e3e0aa75e3b/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea0cd03-81a1-4c09-94bd-6e3e0aa75e3b/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.adding.3.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea0cd03-81a1-4c09-94bd-6e3e0aa75e3b/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea0cd03-81a1-4c09-94bd-6e3e0aa75e3b/bin/uautomizer-tPACEb0tL8 --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 2c894e1d7fb4f29f2261c2da9b84160dfd404379400898d35a0af0a1a91c3f60 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 10:53:59,519 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 10:53:59,521 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 10:53:59,547 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 10:53:59,548 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 10:53:59,549 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 10:53:59,554 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 10:53:59,562 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 10:53:59,565 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 10:53:59,570 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 10:53:59,572 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 10:53:59,574 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 10:53:59,574 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 10:53:59,577 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 10:53:59,580 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 10:53:59,581 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 10:53:59,584 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 10:53:59,584 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 10:53:59,589 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 10:53:59,594 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 10:53:59,595 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 10:53:59,598 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 10:53:59,599 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 10:53:59,600 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 10:53:59,603 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 10:53:59,604 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 10:53:59,604 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 10:53:59,605 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 10:53:59,605 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 10:53:59,606 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 10:53:59,606 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 10:53:59,612 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 10:53:59,614 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 10:53:59,615 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 10:53:59,616 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 10:53:59,616 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 10:53:59,617 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 10:53:59,617 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 10:53:59,617 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 10:53:59,619 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 10:53:59,620 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 10:53:59,625 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea0cd03-81a1-4c09-94bd-6e3e0aa75e3b/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-16 10:53:59,665 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 10:53:59,665 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 10:53:59,667 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 10:53:59,667 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 10:53:59,668 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 10:53:59,668 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 10:53:59,669 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 10:53:59,670 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 10:53:59,670 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 10:53:59,670 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 10:53:59,671 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 10:53:59,671 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 10:53:59,672 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 10:53:59,672 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 10:53:59,672 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-16 10:53:59,673 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-16 10:53:59,673 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-16 10:53:59,673 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 10:53:59,673 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 10:53:59,674 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 10:53:59,674 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 10:53:59,674 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 10:53:59,674 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 10:53:59,675 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 10:53:59,675 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 10:53:59,675 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 10:53:59,676 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 10:53:59,676 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-16 10:53:59,676 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-16 10:53:59,676 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 10:53:59,677 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 10:53:59,677 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 10:53:59,677 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-16 10:53:59,678 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea0cd03-81a1-4c09-94bd-6e3e0aa75e3b/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea0cd03-81a1-4c09-94bd-6e3e0aa75e3b/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2c894e1d7fb4f29f2261c2da9b84160dfd404379400898d35a0af0a1a91c3f60 [2022-11-16 10:54:00,076 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 10:54:00,108 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 10:54:00,111 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 10:54:00,112 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 10:54:00,115 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 10:54:00,117 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea0cd03-81a1-4c09-94bd-6e3e0aa75e3b/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.adding.3.prop1-func-interl.c [2022-11-16 10:54:00,187 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea0cd03-81a1-4c09-94bd-6e3e0aa75e3b/bin/uautomizer-tPACEb0tL8/data/7911f5275/bee281c4fded4845946c07776a930111/FLAG0214898a9 [2022-11-16 10:54:00,699 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 10:54:00,699 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea0cd03-81a1-4c09-94bd-6e3e0aa75e3b/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.adding.3.prop1-func-interl.c [2022-11-16 10:54:00,711 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea0cd03-81a1-4c09-94bd-6e3e0aa75e3b/bin/uautomizer-tPACEb0tL8/data/7911f5275/bee281c4fded4845946c07776a930111/FLAG0214898a9 [2022-11-16 10:54:01,039 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea0cd03-81a1-4c09-94bd-6e3e0aa75e3b/bin/uautomizer-tPACEb0tL8/data/7911f5275/bee281c4fded4845946c07776a930111 [2022-11-16 10:54:01,041 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 10:54:01,043 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 10:54:01,048 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 10:54:01,048 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 10:54:01,051 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 10:54:01,052 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 10:54:01" (1/1) ... [2022-11-16 10:54:01,053 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67e2d124 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:54:01, skipping insertion in model container [2022-11-16 10:54:01,053 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 10:54:01" (1/1) ... [2022-11-16 10:54:01,065 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 10:54:01,115 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 10:54:01,251 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea0cd03-81a1-4c09-94bd-6e3e0aa75e3b/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.adding.3.prop1-func-interl.c[1014,1027] [2022-11-16 10:54:01,459 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 10:54:01,470 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 10:54:01,481 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea0cd03-81a1-4c09-94bd-6e3e0aa75e3b/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.adding.3.prop1-func-interl.c[1014,1027] [2022-11-16 10:54:01,553 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 10:54:01,574 INFO L208 MainTranslator]: Completed translation [2022-11-16 10:54:01,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:54:01 WrapperNode [2022-11-16 10:54:01,574 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 10:54:01,576 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 10:54:01,576 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 10:54:01,576 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 10:54:01,583 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:54:01" (1/1) ... [2022-11-16 10:54:01,607 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:54:01" (1/1) ... [2022-11-16 10:54:01,679 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 431 [2022-11-16 10:54:01,680 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 10:54:01,684 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 10:54:01,684 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 10:54:01,684 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 10:54:01,694 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:54:01" (1/1) ... [2022-11-16 10:54:01,694 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:54:01" (1/1) ... [2022-11-16 10:54:01,699 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:54:01" (1/1) ... [2022-11-16 10:54:01,699 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:54:01" (1/1) ... [2022-11-16 10:54:01,719 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:54:01" (1/1) ... [2022-11-16 10:54:01,722 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:54:01" (1/1) ... [2022-11-16 10:54:01,724 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:54:01" (1/1) ... [2022-11-16 10:54:01,729 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:54:01" (1/1) ... [2022-11-16 10:54:01,734 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 10:54:01,735 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 10:54:01,735 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 10:54:01,735 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 10:54:01,736 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:54:01" (1/1) ... [2022-11-16 10:54:01,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 10:54:01,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea0cd03-81a1-4c09-94bd-6e3e0aa75e3b/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 10:54:01,790 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea0cd03-81a1-4c09-94bd-6e3e0aa75e3b/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 10:54:01,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea0cd03-81a1-4c09-94bd-6e3e0aa75e3b/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 10:54:01,832 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 10:54:01,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 10:54:02,048 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 10:54:02,065 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 10:54:02,717 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 10:54:02,724 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 10:54:02,724 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 10:54:02,731 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 10:54:02 BoogieIcfgContainer [2022-11-16 10:54:02,731 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 10:54:02,734 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 10:54:02,735 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 10:54:02,739 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 10:54:02,739 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 10:54:01" (1/3) ... [2022-11-16 10:54:02,740 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47ab062f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 10:54:02, skipping insertion in model container [2022-11-16 10:54:02,740 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:54:01" (2/3) ... [2022-11-16 10:54:02,740 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47ab062f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 10:54:02, skipping insertion in model container [2022-11-16 10:54:02,741 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 10:54:02" (3/3) ... [2022-11-16 10:54:02,742 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.adding.3.prop1-func-interl.c [2022-11-16 10:54:02,760 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 10:54:02,761 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 10:54:02,809 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 10:54:02,815 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;@2a4ca194, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 10:54:02,816 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 10:54:02,820 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:54:02,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-16 10:54:02,826 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 10:54:02,827 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-16 10:54:02,827 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 10:54:02,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:54:02,833 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-16 10:54:02,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 10:54:02,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1072471099] [2022-11-16 10:54:02,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:54:02,847 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 10:54:02,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea0cd03-81a1-4c09-94bd-6e3e0aa75e3b/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 10:54:02,855 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea0cd03-81a1-4c09-94bd-6e3e0aa75e3b/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 10:54:02,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea0cd03-81a1-4c09-94bd-6e3e0aa75e3b/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-16 10:54:03,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:54:03,061 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-16 10:54:03,068 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 10:54:03,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:54:03,455 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 10:54:03,456 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 10:54:03,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1072471099] [2022-11-16 10:54:03,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1072471099] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:54:03,457 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:54:03,458 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 10:54:03,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575975863] [2022-11-16 10:54:03,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:54:03,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 10:54:03,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 10:54:03,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 10:54:03,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 10:54:03,498 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:54:03,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 10:54:03,614 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-16 10:54:03,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 10:54:03,618 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-16 10:54:03,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 10:54:03,626 INFO L225 Difference]: With dead ends: 20 [2022-11-16 10:54:03,627 INFO L226 Difference]: Without dead ends: 11 [2022-11-16 10:54:03,630 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 [2022-11-16 10:54:03,637 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 10:54:03,639 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 10:54:03,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-16 10:54:03,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-16 10:54:03,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:54:03,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-16 10:54:03,671 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-16 10:54:03,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 10:54:03,671 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-16 10:54:03,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:54:03,672 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-16 10:54:03,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-16 10:54:03,672 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 10:54:03,673 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-16 10:54:03,692 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea0cd03-81a1-4c09-94bd-6e3e0aa75e3b/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-16 10:54:03,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea0cd03-81a1-4c09-94bd-6e3e0aa75e3b/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 10:54:03,885 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 10:54:03,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:54:03,885 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-16 10:54:03,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 10:54:03,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [317840291] [2022-11-16 10:54:03,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:54:03,889 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 10:54:03,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea0cd03-81a1-4c09-94bd-6e3e0aa75e3b/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 10:54:03,890 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea0cd03-81a1-4c09-94bd-6e3e0aa75e3b/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 10:54:03,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea0cd03-81a1-4c09-94bd-6e3e0aa75e3b/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-16 10:54:04,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:54:04,201 INFO L263 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 75 conjunts are in the unsatisfiable core [2022-11-16 10:54:04,207 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 10:55:04,188 WARN L233 SmtUtils]: Spent 58.96s on a formula simplification. DAG size of input: 148 DAG size of output: 145 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 10:55:04,618 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:55:04,618 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 10:55:42,461 WARN L233 SmtUtils]: Spent 31.38s on a formula simplification. DAG size of input: 215 DAG size of output: 209 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 10:56:54,567 WARN L233 SmtUtils]: Spent 1.13m on a formula simplification that was a NOOP. DAG size: 221 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 10:56:54,705 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:56:54,706 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 10:56:54,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [317840291] [2022-11-16 10:56:54,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [317840291] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 10:56:54,706 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 10:56:54,706 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-11-16 10:56:54,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423751722] [2022-11-16 10:56:54,707 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 10:56:54,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 10:56:54,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 10:56:54,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 10:56:54,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=66, Unknown=1, NotChecked=0, Total=90 [2022-11-16 10:56:54,709 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 10 states, 10 states have (on average 1.4) internal successors, (14), 10 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) [2022-11-16 10:56:55,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 10:56:55,026 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2022-11-16 10:56:55,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 10:56:55,027 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.4) internal successors, (14), 10 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 [2022-11-16 10:56:55,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 10:56:55,028 INFO L225 Difference]: With dead ends: 14 [2022-11-16 10:56:55,028 INFO L226 Difference]: Without dead ends: 12 [2022-11-16 10:56:55,028 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 168.1s TimeCoverageRelationStatistics Valid=32, Invalid=77, Unknown=1, NotChecked=0, Total=110 [2022-11-16 10:56:55,029 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 2 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 8 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 10:56:55,030 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 19 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 8 Unchecked, 0.0s Time] [2022-11-16 10:56:55,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2022-11-16 10:56:55,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2022-11-16 10:56:55,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:56:55,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-11-16 10:56:55,043 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-11-16 10:56:55,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 10:56:55,047 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-11-16 10:56:55,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.4) internal successors, (14), 10 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) [2022-11-16 10:56:55,048 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-11-16 10:56:55,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-16 10:56:55,049 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 10:56:55,049 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-16 10:56:55,069 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea0cd03-81a1-4c09-94bd-6e3e0aa75e3b/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-16 10:56:55,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea0cd03-81a1-4c09-94bd-6e3e0aa75e3b/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 10:56:55,250 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 10:56:55,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:56:55,250 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-11-16 10:56:55,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 10:56:55,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1253132939] [2022-11-16 10:56:55,252 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 10:56:55,252 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 10:56:55,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea0cd03-81a1-4c09-94bd-6e3e0aa75e3b/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 10:56:55,255 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea0cd03-81a1-4c09-94bd-6e3e0aa75e3b/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 10:56:55,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea0cd03-81a1-4c09-94bd-6e3e0aa75e3b/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 10:56:55,637 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 10:56:55,637 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 10:56:55,663 INFO L263 TraceCheckSpWp]: Trace formula consists of 678 conjuncts, 149 conjunts are in the unsatisfiable core [2022-11-16 10:56:55,672 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 10:57:33,289 WARN L233 SmtUtils]: Spent 34.68s on a formula simplification that was a NOOP. DAG size: 192 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 10:58:29,214 WARN L233 SmtUtils]: Spent 53.06s on a formula simplification. DAG size of input: 215 DAG size of output: 202 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 11:00:55,961 WARN L233 SmtUtils]: Spent 2.32m on a formula simplification that was a NOOP. DAG size: 524 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 11:00:57,704 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:00:57,704 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:01:08,672 WARN L233 SmtUtils]: Spent 8.55s on a formula simplification. DAG size of input: 221 DAG size of output: 215 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 11:02:24,994 WARN L233 SmtUtils]: Spent 1.22m on a formula simplification that was a NOOP. DAG size: 225 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 11:04:59,238 WARN L233 SmtUtils]: Spent 2.48m on a formula simplification that was a NOOP. DAG size: 448 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 11:07:26,055 WARN L233 SmtUtils]: Spent 2.20m on a formula simplification that was a NOOP. DAG size: 612 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 11:07:26,446 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:07:26,446 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:07:26,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1253132939] [2022-11-16 11:07:26,447 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1253132939] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 11:07:26,447 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 11:07:26,447 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2022-11-16 11:07:26,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390973187] [2022-11-16 11:07:26,447 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 11:07:26,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:07:26,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:07:26,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:07:26,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=138, Unknown=6, NotChecked=0, Total=182 [2022-11-16 11:07:26,449 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 14 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 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) [2022-11-16 11:07:49,784 WARN L233 SmtUtils]: Spent 20.46s on a formula simplification that was a NOOP. DAG size: 204 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 11:07:49,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:07:49,826 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2022-11-16 11:07:49,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-16 11:07:49,826 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 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 [2022-11-16 11:07:49,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:07:49,827 INFO L225 Difference]: With dead ends: 17 [2022-11-16 11:07:49,827 INFO L226 Difference]: Without dead ends: 15 [2022-11-16 11:07:49,828 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 634.0s TimeCoverageRelationStatistics Valid=55, Invalid=179, Unknown=6, NotChecked=0, Total=240 [2022-11-16 11:07:49,829 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 1 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 14 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:07:49,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 34 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 3 Invalid, 0 Unknown, 14 Unchecked, 0.0s Time] [2022-11-16 11:07:49,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-11-16 11:07:49,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-11-16 11:07:49,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:49,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-11-16 11:07:49,851 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 11 [2022-11-16 11:07:49,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:07:49,851 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-11-16 11:07:49,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 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) [2022-11-16 11:07:49,852 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-11-16 11:07:49,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-16 11:07:49,852 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:07:49,852 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1] [2022-11-16 11:07:49,869 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea0cd03-81a1-4c09-94bd-6e3e0aa75e3b/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 11:07:50,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea0cd03-81a1-4c09-94bd-6e3e0aa75e3b/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:07:50,069 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:07:50,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:07:50,069 INFO L85 PathProgramCache]: Analyzing trace with hash 1580781475, now seen corresponding path program 3 times [2022-11-16 11:07:50,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:07:50,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [313419264] [2022-11-16 11:07:50,071 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 11:07:50,071 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:07:50,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea0cd03-81a1-4c09-94bd-6e3e0aa75e3b/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:07:50,077 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea0cd03-81a1-4c09-94bd-6e3e0aa75e3b/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 11:07:50,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea0cd03-81a1-4c09-94bd-6e3e0aa75e3b/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 11:07:50,600 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-11-16 11:07:50,600 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 11:07:50,628 INFO L263 TraceCheckSpWp]: Trace formula consists of 985 conjuncts, 289 conjunts are in the unsatisfiable core [2022-11-16 11:07:50,640 INFO L286 TraceCheckSpWp]: Computing forward predicates...