./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p21.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a57fe7-dabf-4821-801d-52f95b51dfd4/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a57fe7-dabf-4821-801d-52f95b51dfd4/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a57fe7-dabf-4821-801d-52f95b51dfd4/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a57fe7-dabf-4821-801d-52f95b51dfd4/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p21.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a57fe7-dabf-4821-801d-52f95b51dfd4/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a57fe7-dabf-4821-801d-52f95b51dfd4/bin/uautomizer-Dbtcem3rbc --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 3837eae2c7b517f3a42acb68f7499e7efad6924aaaf7f0e6b9fd97211677638a --- 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-5e519f3 [2022-11-02 20:37:55,824 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:37:55,827 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:37:55,871 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:37:55,871 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:37:55,876 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:37:55,878 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:37:55,879 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:37:55,881 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:37:55,882 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:37:55,882 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:37:55,884 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:37:55,884 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:37:55,885 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:37:55,886 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:37:55,887 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:37:55,888 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:37:55,889 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:37:55,891 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:37:55,893 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:37:55,894 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:37:55,896 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:37:55,897 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:37:55,898 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:37:55,901 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:37:55,902 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:37:55,902 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:37:55,903 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:37:55,903 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:37:55,904 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:37:55,905 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:37:55,905 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:37:55,906 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:37:55,907 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:37:55,908 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:37:55,908 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:37:55,909 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:37:55,909 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:37:55,910 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:37:55,911 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:37:55,911 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:37:55,912 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a57fe7-dabf-4821-801d-52f95b51dfd4/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-02 20:37:55,937 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:37:55,937 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:37:55,937 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:37:55,938 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:37:55,938 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:37:55,939 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:37:55,939 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:37:55,940 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:37:55,940 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:37:55,940 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:37:55,940 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:37:55,941 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:37:55,941 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:37:55,941 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:37:55,941 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:37:55,942 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:37:55,942 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:37:55,942 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:37:55,942 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:37:55,942 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:37:55,943 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:37:55,943 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:37:55,943 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:37:55,943 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:37:55,943 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:37:55,944 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:37:55,944 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:37:55,944 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:37:55,944 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:37:55,944 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:37:55,945 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_15a57fe7-dabf-4821-801d-52f95b51dfd4/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a57fe7-dabf-4821-801d-52f95b51dfd4/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3837eae2c7b517f3a42acb68f7499e7efad6924aaaf7f0e6b9fd97211677638a [2022-11-02 20:37:56,228 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:37:56,264 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:37:56,268 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:37:56,270 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:37:56,271 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:37:56,273 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a57fe7-dabf-4821-801d-52f95b51dfd4/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p21.c [2022-11-02 20:37:56,355 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a57fe7-dabf-4821-801d-52f95b51dfd4/bin/uautomizer-Dbtcem3rbc/data/ceca618ee/3e02ace29a524c279ecaef516969fa57/FLAGa7c450266 [2022-11-02 20:37:56,881 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:37:56,882 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a57fe7-dabf-4821-801d-52f95b51dfd4/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p21.c [2022-11-02 20:37:56,890 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a57fe7-dabf-4821-801d-52f95b51dfd4/bin/uautomizer-Dbtcem3rbc/data/ceca618ee/3e02ace29a524c279ecaef516969fa57/FLAGa7c450266 [2022-11-02 20:37:57,216 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a57fe7-dabf-4821-801d-52f95b51dfd4/bin/uautomizer-Dbtcem3rbc/data/ceca618ee/3e02ace29a524c279ecaef516969fa57 [2022-11-02 20:37:57,219 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:37:57,224 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:37:57,227 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:37:57,228 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:37:57,232 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:37:57,232 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:37:57" (1/1) ... [2022-11-02 20:37:57,234 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35901a21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:37:57, skipping insertion in model container [2022-11-02 20:37:57,234 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:37:57" (1/1) ... [2022-11-02 20:37:57,243 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:37:57,264 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:37:57,428 WARN L230 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_15a57fe7-dabf-4821-801d-52f95b51dfd4/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p21.c[1107,1120] [2022-11-02 20:37:57,473 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:37:57,476 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:37:57,487 WARN L230 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_15a57fe7-dabf-4821-801d-52f95b51dfd4/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p21.c[1107,1120] [2022-11-02 20:37:57,513 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:37:57,525 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:37:57,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:37:57 WrapperNode [2022-11-02 20:37:57,525 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:37:57,526 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:37:57,527 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:37:57,527 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:37:57,535 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:37:57" (1/1) ... [2022-11-02 20:37:57,543 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:37:57" (1/1) ... [2022-11-02 20:37:57,571 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 167 [2022-11-02 20:37:57,572 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:37:57,573 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:37:57,573 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:37:57,573 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:37:57,599 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:37:57" (1/1) ... [2022-11-02 20:37:57,599 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:37:57" (1/1) ... [2022-11-02 20:37:57,607 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:37:57" (1/1) ... [2022-11-02 20:37:57,608 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:37:57" (1/1) ... [2022-11-02 20:37:57,614 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:37:57" (1/1) ... [2022-11-02 20:37:57,646 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:37:57" (1/1) ... [2022-11-02 20:37:57,647 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:37:57" (1/1) ... [2022-11-02 20:37:57,649 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:37:57" (1/1) ... [2022-11-02 20:37:57,651 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:37:57,652 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:37:57,652 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:37:57,653 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:37:57,654 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:37:57" (1/1) ... [2022-11-02 20:37:57,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:37:57,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a57fe7-dabf-4821-801d-52f95b51dfd4/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:37:57,716 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a57fe7-dabf-4821-801d-52f95b51dfd4/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:37:57,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a57fe7-dabf-4821-801d-52f95b51dfd4/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:37:57,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:37:57,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:37:57,877 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:37:57,880 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:37:58,227 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:37:58,234 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:37:58,235 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-02 20:37:58,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:37:58 BoogieIcfgContainer [2022-11-02 20:37:58,237 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:37:58,239 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:37:58,240 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:37:58,244 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:37:58,244 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:37:57" (1/3) ... [2022-11-02 20:37:58,245 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ee5a7a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:37:58, skipping insertion in model container [2022-11-02 20:37:58,245 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:37:57" (2/3) ... [2022-11-02 20:37:58,246 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ee5a7a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:37:58, skipping insertion in model container [2022-11-02 20:37:58,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:37:58" (3/3) ... [2022-11-02 20:37:58,248 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p21.c [2022-11-02 20:37:58,278 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:37:58,279 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-02 20:37:58,337 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:37:58,344 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;@437caf73, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:37:58,344 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-02 20:37:58,349 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 16 states have internal predecessors, (22), 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) [2022-11-02 20:37:58,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-02 20:37:58,356 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:37:58,356 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-02 20:37:58,357 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:37:58,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:37:58,363 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-02 20:37:58,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:37:58,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204507599] [2022-11-02 20:37:58,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:37:58,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:37:58,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:37:58,712 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:37:58,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:37:58,965 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:37:58,967 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-02 20:37:58,969 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-02 20:37:58,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:37:58,976 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-02 20:37:58,981 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-02 20:37:59,022 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-02 20:37:59,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 08:37:59 BoogieIcfgContainer [2022-11-02 20:37:59,034 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-02 20:37:59,035 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-02 20:37:59,035 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-02 20:37:59,035 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-02 20:37:59,036 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:37:58" (3/4) ... [2022-11-02 20:37:59,040 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-02 20:37:59,041 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-02 20:37:59,042 INFO L158 Benchmark]: Toolchain (without parser) took 1818.26ms. Allocated memory is still 111.1MB. Free memory was 72.2MB in the beginning and 75.0MB in the end (delta: -2.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:37:59,043 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 111.1MB. Free memory is still 89.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:37:59,044 INFO L158 Benchmark]: CACSL2BoogieTranslator took 298.49ms. Allocated memory is still 111.1MB. Free memory was 72.0MB in the beginning and 85.6MB in the end (delta: -13.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-02 20:37:59,046 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.56ms. Allocated memory is still 111.1MB. Free memory was 85.6MB in the beginning and 83.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 20:37:59,047 INFO L158 Benchmark]: Boogie Preprocessor took 78.99ms. Allocated memory is still 111.1MB. Free memory was 83.2MB in the beginning and 81.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 20:37:59,054 INFO L158 Benchmark]: RCFGBuilder took 584.86ms. Allocated memory is still 111.1MB. Free memory was 81.4MB in the beginning and 61.3MB in the end (delta: 20.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-02 20:37:59,055 INFO L158 Benchmark]: TraceAbstraction took 794.81ms. Allocated memory is still 111.1MB. Free memory was 60.9MB in the beginning and 75.6MB in the end (delta: -14.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:37:59,056 INFO L158 Benchmark]: Witness Printer took 6.08ms. Allocated memory is still 111.1MB. Free memory was 75.6MB in the beginning and 75.0MB in the end (delta: 589.1kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 20:37:59,062 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 111.1MB. Free memory is still 89.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 298.49ms. Allocated memory is still 111.1MB. Free memory was 72.0MB in the beginning and 85.6MB in the end (delta: -13.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.56ms. Allocated memory is still 111.1MB. Free memory was 85.6MB in the beginning and 83.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 78.99ms. Allocated memory is still 111.1MB. Free memory was 83.2MB in the beginning and 81.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 584.86ms. Allocated memory is still 111.1MB. Free memory was 81.4MB in the beginning and 61.3MB in the end (delta: 20.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 794.81ms. Allocated memory is still 111.1MB. Free memory was 60.9MB in the beginning and 75.6MB in the end (delta: -14.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 6.08ms. Allocated memory is still 111.1MB. Free memory was 75.6MB in the beginning and 75.0MB in the end (delta: 589.1kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 20]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseComplement at line 125, overapproximation of bitwiseOr at line 123, overapproximation of bitwiseAnd at line 110. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L28] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 8); [L29] const SORT_3 msb_SORT_3 = (SORT_3)1 << (8 - 1); [L31] const SORT_10 mask_SORT_10 = (SORT_10)-1 >> (sizeof(SORT_10) * 8 - 32); [L32] const SORT_10 msb_SORT_10 = (SORT_10)1 << (32 - 1); [L34] const SORT_31 mask_SORT_31 = (SORT_31)-1 >> (sizeof(SORT_31) * 8 - 4); [L35] const SORT_31 msb_SORT_31 = (SORT_31)1 << (4 - 1); [L37] const SORT_67 mask_SORT_67 = (SORT_67)-1 >> (sizeof(SORT_67) * 8 - 10); [L38] const SORT_67 msb_SORT_67 = (SORT_67)1 << (10 - 1); [L40] const SORT_1 var_7 = 0; [L41] const SORT_10 var_12 = 0; [L42] const SORT_1 var_21 = 1; [L44] SORT_1 input_2; [L45] SORT_3 input_4; [L46] SORT_1 input_5; [L47] SORT_1 input_6; [L48] SORT_1 input_27; [L49] SORT_1 input_29; [L50] SORT_31 input_32; [L51] SORT_1 input_34; [L52] SORT_31 input_36; [L53] SORT_1 input_38; [L54] SORT_1 input_40; [L55] SORT_1 input_42; [L56] SORT_1 input_44; [L57] SORT_1 input_46; [L58] SORT_1 input_48; [L59] SORT_3 input_50; [L60] SORT_1 input_53; [L61] SORT_1 input_55; [L62] SORT_1 input_57; [L63] SORT_1 input_59; [L64] SORT_1 input_61; [L65] SORT_1 input_63; [L66] SORT_1 input_65; [L67] SORT_67 input_68; [L68] SORT_1 input_70; [L70] SORT_1 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L71] SORT_1 state_14 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L72] SORT_1 state_25 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L74] SORT_1 init_9_arg_1 = var_7; [L75] state_8 = init_9_arg_1 [L76] SORT_1 init_15_arg_1 = var_7; [L77] state_14 = init_15_arg_1 [L78] SORT_1 init_26_arg_1 = var_7; [L79] state_25 = init_26_arg_1 VAL [init_15_arg_1=0, init_26_arg_1=0, init_9_arg_1=0, mask_SORT_1=1, mask_SORT_10=4294967295, mask_SORT_3=255, mask_SORT_31=15, mask_SORT_67=1023, msb_SORT_1=1, msb_SORT_10=2147483648, msb_SORT_3=128, msb_SORT_31=8, msb_SORT_67=512, state_14=0, state_25=0, state_8=0, var_12=0, var_21=1, var_7=0] [L82] input_2 = __VERIFIER_nondet_uchar() [L83] input_4 = __VERIFIER_nondet_uchar() [L84] input_5 = __VERIFIER_nondet_uchar() [L85] input_6 = __VERIFIER_nondet_uchar() [L86] input_27 = __VERIFIER_nondet_uchar() [L87] input_29 = __VERIFIER_nondet_uchar() [L88] input_32 = __VERIFIER_nondet_uchar() [L89] input_34 = __VERIFIER_nondet_uchar() [L90] input_36 = __VERIFIER_nondet_uchar() [L91] input_38 = __VERIFIER_nondet_uchar() [L92] input_40 = __VERIFIER_nondet_uchar() [L93] input_42 = __VERIFIER_nondet_uchar() [L94] input_44 = __VERIFIER_nondet_uchar() [L95] input_46 = __VERIFIER_nondet_uchar() [L96] input_48 = __VERIFIER_nondet_uchar() [L97] input_50 = __VERIFIER_nondet_uchar() [L98] input_53 = __VERIFIER_nondet_uchar() [L99] input_55 = __VERIFIER_nondet_uchar() [L100] input_57 = __VERIFIER_nondet_uchar() [L101] input_59 = __VERIFIER_nondet_uchar() [L102] input_61 = __VERIFIER_nondet_uchar() [L103] input_63 = __VERIFIER_nondet_uchar() [L104] input_65 = __VERIFIER_nondet_uchar() [L105] input_68 = __VERIFIER_nondet_ushort() [L106] input_70 = __VERIFIER_nondet_uchar() [L109] SORT_1 var_11_arg_0 = state_8; [L110] var_11_arg_0 = var_11_arg_0 & mask_SORT_1 [L111] SORT_10 var_11 = var_11_arg_0; [L112] SORT_10 var_13_arg_0 = var_11; [L113] SORT_10 var_13_arg_1 = var_12; [L114] SORT_1 var_13 = var_13_arg_0 == var_13_arg_1; [L115] SORT_1 var_16_arg_0 = state_14; [L116] var_16_arg_0 = var_16_arg_0 & mask_SORT_1 [L117] SORT_10 var_16 = var_16_arg_0; [L118] SORT_10 var_17_arg_0 = var_16; [L119] SORT_10 var_17_arg_1 = var_12; [L120] SORT_1 var_17 = var_17_arg_0 == var_17_arg_1; [L121] SORT_1 var_18_arg_0 = var_13; [L122] SORT_1 var_18_arg_1 = var_17; [L123] SORT_1 var_18 = var_18_arg_0 | var_18_arg_1; [L124] SORT_1 var_22_arg_0 = var_18; [L125] SORT_1 var_22 = ~var_22_arg_0; [L126] SORT_1 var_23_arg_0 = var_21; [L127] SORT_1 var_23_arg_1 = var_22; [L128] SORT_1 var_23 = var_23_arg_0 & var_23_arg_1; [L129] var_23 = var_23 & mask_SORT_1 [L130] SORT_1 bad_24_arg_0 = var_23; [L131] CALL __VERIFIER_assert(!(bad_24_arg_0)) [L20] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L20] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 17 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-02 20:37:59,132 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a57fe7-dabf-4821-801d-52f95b51dfd4/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a57fe7-dabf-4821-801d-52f95b51dfd4/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a57fe7-dabf-4821-801d-52f95b51dfd4/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a57fe7-dabf-4821-801d-52f95b51dfd4/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a57fe7-dabf-4821-801d-52f95b51dfd4/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p21.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a57fe7-dabf-4821-801d-52f95b51dfd4/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a57fe7-dabf-4821-801d-52f95b51dfd4/bin/uautomizer-Dbtcem3rbc --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 3837eae2c7b517f3a42acb68f7499e7efad6924aaaf7f0e6b9fd97211677638a --- 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-5e519f3 [2022-11-02 20:38:01,541 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:38:01,543 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:38:01,604 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:38:01,604 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:38:01,609 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:38:01,611 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:38:01,618 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:38:01,625 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:38:01,628 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:38:01,629 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:38:01,630 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:38:01,630 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:38:01,631 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:38:01,632 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:38:01,633 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:38:01,634 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:38:01,635 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:38:01,637 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:38:01,639 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:38:01,640 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:38:01,642 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:38:01,643 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:38:01,644 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:38:01,648 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:38:01,649 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:38:01,649 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:38:01,650 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:38:01,651 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:38:01,652 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:38:01,652 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:38:01,653 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:38:01,654 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:38:01,654 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:38:01,656 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:38:01,656 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:38:01,657 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:38:01,657 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:38:01,657 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:38:01,658 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:38:01,659 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:38:01,660 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a57fe7-dabf-4821-801d-52f95b51dfd4/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-02 20:38:01,729 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:38:01,729 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:38:01,730 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:38:01,730 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:38:01,731 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:38:01,731 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:38:01,732 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:38:01,732 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:38:01,732 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:38:01,733 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:38:01,733 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:38:01,733 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:38:01,733 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:38:01,734 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:38:01,734 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-02 20:38:01,734 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-02 20:38:01,734 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-02 20:38:01,735 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:38:01,735 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:38:01,735 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:38:01,735 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:38:01,736 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:38:01,736 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:38:01,736 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:38:01,737 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:38:01,737 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:38:01,737 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:38:01,737 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-02 20:38:01,738 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-02 20:38:01,738 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:38:01,742 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:38:01,742 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:38:01,743 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-02 20:38:01,743 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_15a57fe7-dabf-4821-801d-52f95b51dfd4/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a57fe7-dabf-4821-801d-52f95b51dfd4/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3837eae2c7b517f3a42acb68f7499e7efad6924aaaf7f0e6b9fd97211677638a [2022-11-02 20:38:02,148 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:38:02,175 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:38:02,178 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:38:02,179 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:38:02,184 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:38:02,187 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a57fe7-dabf-4821-801d-52f95b51dfd4/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p21.c [2022-11-02 20:38:02,259 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a57fe7-dabf-4821-801d-52f95b51dfd4/bin/uautomizer-Dbtcem3rbc/data/8ecad0753/d5a014d4771a44e684528a457a4bb675/FLAGd24c306b2 [2022-11-02 20:38:02,728 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:38:02,729 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a57fe7-dabf-4821-801d-52f95b51dfd4/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p21.c [2022-11-02 20:38:02,746 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a57fe7-dabf-4821-801d-52f95b51dfd4/bin/uautomizer-Dbtcem3rbc/data/8ecad0753/d5a014d4771a44e684528a457a4bb675/FLAGd24c306b2 [2022-11-02 20:38:03,131 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a57fe7-dabf-4821-801d-52f95b51dfd4/bin/uautomizer-Dbtcem3rbc/data/8ecad0753/d5a014d4771a44e684528a457a4bb675 [2022-11-02 20:38:03,133 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:38:03,135 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:38:03,139 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:38:03,140 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:38:03,143 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:38:03,144 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:38:03" (1/1) ... [2022-11-02 20:38:03,146 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25d50bb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:38:03, skipping insertion in model container [2022-11-02 20:38:03,146 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:38:03" (1/1) ... [2022-11-02 20:38:03,155 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:38:03,194 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:38:03,396 WARN L230 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_15a57fe7-dabf-4821-801d-52f95b51dfd4/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p21.c[1107,1120] [2022-11-02 20:38:03,489 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:38:03,492 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:38:03,513 WARN L230 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_15a57fe7-dabf-4821-801d-52f95b51dfd4/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p21.c[1107,1120] [2022-11-02 20:38:03,562 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:38:03,575 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:38:03,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:38:03 WrapperNode [2022-11-02 20:38:03,576 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:38:03,577 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:38:03,577 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:38:03,577 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:38:03,584 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:38:03" (1/1) ... [2022-11-02 20:38:03,595 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:38:03" (1/1) ... [2022-11-02 20:38:03,619 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 167 [2022-11-02 20:38:03,619 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:38:03,620 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:38:03,620 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:38:03,620 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:38:03,635 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:38:03" (1/1) ... [2022-11-02 20:38:03,635 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:38:03" (1/1) ... [2022-11-02 20:38:03,646 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:38:03" (1/1) ... [2022-11-02 20:38:03,648 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:38:03" (1/1) ... [2022-11-02 20:38:03,654 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:38:03" (1/1) ... [2022-11-02 20:38:03,674 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:38:03" (1/1) ... [2022-11-02 20:38:03,675 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:38:03" (1/1) ... [2022-11-02 20:38:03,676 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:38:03" (1/1) ... [2022-11-02 20:38:03,679 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:38:03,680 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:38:03,688 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:38:03,688 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:38:03,689 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:38:03" (1/1) ... [2022-11-02 20:38:03,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:38:03,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a57fe7-dabf-4821-801d-52f95b51dfd4/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:38:03,726 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a57fe7-dabf-4821-801d-52f95b51dfd4/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:38:03,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a57fe7-dabf-4821-801d-52f95b51dfd4/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:38:03,775 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:38:03,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:38:03,863 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:38:03,865 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:38:04,094 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:38:04,102 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:38:04,114 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-02 20:38:04,117 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:38:04 BoogieIcfgContainer [2022-11-02 20:38:04,117 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:38:04,120 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:38:04,120 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:38:04,123 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:38:04,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:38:03" (1/3) ... [2022-11-02 20:38:04,125 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36ee81ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:38:04, skipping insertion in model container [2022-11-02 20:38:04,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:38:03" (2/3) ... [2022-11-02 20:38:04,139 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36ee81ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:38:04, skipping insertion in model container [2022-11-02 20:38:04,139 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:38:04" (3/3) ... [2022-11-02 20:38:04,141 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p21.c [2022-11-02 20:38:04,177 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:38:04,177 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-02 20:38:04,270 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:38:04,277 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;@64894b2d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:38:04,290 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-02 20:38:04,295 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 16 states have internal predecessors, (22), 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) [2022-11-02 20:38:04,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-02 20:38:04,305 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:38:04,306 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-02 20:38:04,307 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:38:04,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:38:04,318 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-02 20:38:04,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:38:04,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1938602241] [2022-11-02 20:38:04,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:38:04,336 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:38:04,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a57fe7-dabf-4821-801d-52f95b51dfd4/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:38:04,341 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a57fe7-dabf-4821-801d-52f95b51dfd4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:38:04,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a57fe7-dabf-4821-801d-52f95b51dfd4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-02 20:38:04,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:38:04,551 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-02 20:38:04,559 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:38:04,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:38:04,783 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:38:04,784 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:38:04,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1938602241] [2022-11-02 20:38:04,786 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1938602241] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:38:04,786 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:38:04,786 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:38:04,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279329721] [2022-11-02 20:38:04,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:38:04,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:38:04,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:38:04,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:38:04,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:38:04,839 INFO L87 Difference]: Start difference. First operand has 17 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 16 states have internal predecessors, (22), 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) [2022-11-02 20:38:04,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:38:04,925 INFO L93 Difference]: Finished difference Result 38 states and 57 transitions. [2022-11-02 20:38:04,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:38:04,929 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 [2022-11-02 20:38:04,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:38:04,937 INFO L225 Difference]: With dead ends: 38 [2022-11-02 20:38:04,937 INFO L226 Difference]: Without dead ends: 23 [2022-11-02 20:38:04,940 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:38:04,945 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 21 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:38:04,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 38 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:38:04,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-11-02 20:38:04,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 15. [2022-11-02 20:38:04,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:38:04,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 18 transitions. [2022-11-02 20:38:04,988 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 18 transitions. Word has length 5 [2022-11-02 20:38:04,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:38:04,989 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 18 transitions. [2022-11-02 20:38:04,989 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) [2022-11-02 20:38:04,989 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 18 transitions. [2022-11-02 20:38:04,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-02 20:38:04,990 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:38:04,990 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:38:05,012 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a57fe7-dabf-4821-801d-52f95b51dfd4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-02 20:38:05,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a57fe7-dabf-4821-801d-52f95b51dfd4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:38:05,213 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:38:05,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:38:05,214 INFO L85 PathProgramCache]: Analyzing trace with hash 829515481, now seen corresponding path program 1 times [2022-11-02 20:38:05,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:38:05,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [515536306] [2022-11-02 20:38:05,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:38:05,215 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:38:05,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a57fe7-dabf-4821-801d-52f95b51dfd4/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:38:05,221 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a57fe7-dabf-4821-801d-52f95b51dfd4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:38:05,229 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a57fe7-dabf-4821-801d-52f95b51dfd4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-02 20:38:05,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:38:05,370 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-02 20:38:05,374 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:38:05,414 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:38:05,414 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:38:05,415 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:38:05,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [515536306] [2022-11-02 20:38:05,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [515536306] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:38:05,415 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:38:05,415 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:38:05,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355354666] [2022-11-02 20:38:05,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:38:05,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:38:05,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:38:05,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:38:05,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:38:05,418 INFO L87 Difference]: Start difference. First operand 15 states and 18 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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) [2022-11-02 20:38:05,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:38:05,471 INFO L93 Difference]: Finished difference Result 43 states and 54 transitions. [2022-11-02 20:38:05,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:38:05,473 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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 14 [2022-11-02 20:38:05,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:38:05,475 INFO L225 Difference]: With dead ends: 43 [2022-11-02 20:38:05,475 INFO L226 Difference]: Without dead ends: 32 [2022-11-02 20:38:05,475 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:38:05,477 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 27 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:38:05,479 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 42 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:38:05,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-11-02 20:38:05,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 17. [2022-11-02 20:38:05,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.25) internal successors, (20), 16 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) [2022-11-02 20:38:05,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 20 transitions. [2022-11-02 20:38:05,488 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 20 transitions. Word has length 14 [2022-11-02 20:38:05,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:38:05,489 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 20 transitions. [2022-11-02 20:38:05,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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) [2022-11-02 20:38:05,490 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2022-11-02 20:38:05,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-02 20:38:05,496 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:38:05,497 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:38:05,513 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a57fe7-dabf-4821-801d-52f95b51dfd4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-02 20:38:05,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a57fe7-dabf-4821-801d-52f95b51dfd4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:38:05,709 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:38:05,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:38:05,710 INFO L85 PathProgramCache]: Analyzing trace with hash 1509573851, now seen corresponding path program 1 times [2022-11-02 20:38:05,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:38:05,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [909616019] [2022-11-02 20:38:05,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:38:05,711 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:38:05,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a57fe7-dabf-4821-801d-52f95b51dfd4/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:38:05,713 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a57fe7-dabf-4821-801d-52f95b51dfd4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:38:05,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a57fe7-dabf-4821-801d-52f95b51dfd4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-02 20:38:05,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:38:05,818 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-02 20:38:05,821 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:38:05,851 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:38:05,851 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:38:05,852 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:38:05,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [909616019] [2022-11-02 20:38:05,852 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [909616019] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:38:05,852 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:38:05,852 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:38:05,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594622569] [2022-11-02 20:38:05,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:38:05,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:38:05,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:38:05,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:38:05,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:38:05,855 INFO L87 Difference]: Start difference. First operand 17 states and 20 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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) [2022-11-02 20:38:05,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:38:05,887 INFO L93 Difference]: Finished difference Result 43 states and 53 transitions. [2022-11-02 20:38:05,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:38:05,887 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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 14 [2022-11-02 20:38:05,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:38:05,888 INFO L225 Difference]: With dead ends: 43 [2022-11-02 20:38:05,888 INFO L226 Difference]: Without dead ends: 32 [2022-11-02 20:38:05,889 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:38:05,890 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 16 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:38:05,891 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 41 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:38:05,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-11-02 20:38:05,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 21. [2022-11-02 20:38:05,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.25) internal successors, (25), 20 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) [2022-11-02 20:38:05,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2022-11-02 20:38:05,904 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 14 [2022-11-02 20:38:05,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:38:05,905 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2022-11-02 20:38:05,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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) [2022-11-02 20:38:05,906 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2022-11-02 20:38:05,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-02 20:38:05,907 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:38:05,908 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:38:05,929 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a57fe7-dabf-4821-801d-52f95b51dfd4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-02 20:38:06,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a57fe7-dabf-4821-801d-52f95b51dfd4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:38:06,120 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:38:06,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:38:06,121 INFO L85 PathProgramCache]: Analyzing trace with hash 1511420893, now seen corresponding path program 1 times [2022-11-02 20:38:06,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:38:06,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [120691832] [2022-11-02 20:38:06,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:38:06,122 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:38:06,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a57fe7-dabf-4821-801d-52f95b51dfd4/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:38:06,126 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a57fe7-dabf-4821-801d-52f95b51dfd4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:38:06,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a57fe7-dabf-4821-801d-52f95b51dfd4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-02 20:38:06,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:38:06,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-02 20:38:06,233 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:38:06,431 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-02 20:38:06,432 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:38:07,113 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-02 20:38:07,114 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:38:07,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [120691832] [2022-11-02 20:38:07,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [120691832] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:38:07,118 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-02 20:38:07,118 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2022-11-02 20:38:07,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785726361] [2022-11-02 20:38:07,119 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-02 20:38:07,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-02 20:38:07,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:38:07,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-02 20:38:07,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2022-11-02 20:38:07,122 INFO L87 Difference]: Start difference. First operand 21 states and 25 transitions. Second operand has 12 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 12 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) [2022-11-02 20:38:07,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:38:07,357 INFO L93 Difference]: Finished difference Result 39 states and 48 transitions. [2022-11-02 20:38:07,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-02 20:38:07,360 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 12 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 14 [2022-11-02 20:38:07,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:38:07,361 INFO L225 Difference]: With dead ends: 39 [2022-11-02 20:38:07,361 INFO L226 Difference]: Without dead ends: 37 [2022-11-02 20:38:07,361 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=92, Invalid=214, Unknown=0, NotChecked=0, Total=306 [2022-11-02 20:38:07,362 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 73 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 42 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:38:07,363 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 120 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 44 Invalid, 0 Unknown, 42 Unchecked, 0.1s Time] [2022-11-02 20:38:07,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-11-02 20:38:07,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 30. [2022-11-02 20:38:07,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.2758620689655173) internal successors, (37), 29 states have internal predecessors, (37), 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) [2022-11-02 20:38:07,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2022-11-02 20:38:07,371 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 37 transitions. Word has length 14 [2022-11-02 20:38:07,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:38:07,371 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 37 transitions. [2022-11-02 20:38:07,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 12 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) [2022-11-02 20:38:07,371 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2022-11-02 20:38:07,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-02 20:38:07,372 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:38:07,373 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:38:07,390 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a57fe7-dabf-4821-801d-52f95b51dfd4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-02 20:38:07,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a57fe7-dabf-4821-801d-52f95b51dfd4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:38:07,585 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:38:07,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:38:07,586 INFO L85 PathProgramCache]: Analyzing trace with hash 1301699077, now seen corresponding path program 1 times [2022-11-02 20:38:07,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:38:07,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [963948255] [2022-11-02 20:38:07,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:38:07,587 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:38:07,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a57fe7-dabf-4821-801d-52f95b51dfd4/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:38:07,588 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a57fe7-dabf-4821-801d-52f95b51dfd4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:38:07,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a57fe7-dabf-4821-801d-52f95b51dfd4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-02 20:38:07,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:38:07,711 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-02 20:38:07,714 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:38:07,809 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:38:07,809 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:38:07,924 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:38:07,924 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:38:07,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [963948255] [2022-11-02 20:38:07,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [963948255] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:38:07,924 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-02 20:38:07,924 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2022-11-02 20:38:07,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401867585] [2022-11-02 20:38:07,925 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-02 20:38:07,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-02 20:38:07,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:38:07,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-02 20:38:07,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2022-11-02 20:38:07,926 INFO L87 Difference]: Start difference. First operand 30 states and 37 transitions. Second operand has 12 states, 12 states have (on average 3.25) internal successors, (39), 12 states have internal predecessors, (39), 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) [2022-11-02 20:38:08,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:38:08,263 INFO L93 Difference]: Finished difference Result 132 states and 161 transitions. [2022-11-02 20:38:08,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-02 20:38:08,264 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.25) internal successors, (39), 12 states have internal predecessors, (39), 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 [2022-11-02 20:38:08,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:38:08,265 INFO L225 Difference]: With dead ends: 132 [2022-11-02 20:38:08,265 INFO L226 Difference]: Without dead ends: 112 [2022-11-02 20:38:08,265 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=324, Unknown=0, NotChecked=0, Total=462 [2022-11-02 20:38:08,266 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 104 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:38:08,267 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 142 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 20:38:08,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2022-11-02 20:38:08,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 44. [2022-11-02 20:38:08,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.255813953488372) internal successors, (54), 43 states have internal predecessors, (54), 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) [2022-11-02 20:38:08,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 54 transitions. [2022-11-02 20:38:08,276 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 54 transitions. Word has length 23 [2022-11-02 20:38:08,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:38:08,276 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 54 transitions. [2022-11-02 20:38:08,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.25) internal successors, (39), 12 states have internal predecessors, (39), 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) [2022-11-02 20:38:08,277 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 54 transitions. [2022-11-02 20:38:08,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-02 20:38:08,277 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:38:08,277 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:38:08,296 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a57fe7-dabf-4821-801d-52f95b51dfd4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-02 20:38:08,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a57fe7-dabf-4821-801d-52f95b51dfd4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:38:08,490 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:38:08,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:38:08,490 INFO L85 PathProgramCache]: Analyzing trace with hash -473308285, now seen corresponding path program 1 times [2022-11-02 20:38:08,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:38:08,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [59563232] [2022-11-02 20:38:08,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:38:08,491 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:38:08,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a57fe7-dabf-4821-801d-52f95b51dfd4/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:38:08,494 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a57fe7-dabf-4821-801d-52f95b51dfd4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:38:08,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a57fe7-dabf-4821-801d-52f95b51dfd4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-02 20:38:08,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:38:08,618 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 30 conjunts are in the unsatisfiable core [2022-11-02 20:38:08,621 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:38:08,899 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-02 20:38:08,899 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:38:09,727 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-02 20:38:09,727 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:38:09,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [59563232] [2022-11-02 20:38:09,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [59563232] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:38:09,728 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-02 20:38:09,728 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2022-11-02 20:38:09,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110208699] [2022-11-02 20:38:09,728 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-02 20:38:09,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-02 20:38:09,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:38:09,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-02 20:38:09,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-11-02 20:38:09,730 INFO L87 Difference]: Start difference. First operand 44 states and 54 transitions. Second operand has 14 states, 14 states have (on average 2.4285714285714284) internal successors, (34), 14 states have internal predecessors, (34), 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) [2022-11-02 20:38:09,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:38:09,943 INFO L93 Difference]: Finished difference Result 44 states and 54 transitions. [2022-11-02 20:38:09,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-02 20:38:09,944 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.4285714285714284) internal successors, (34), 14 states have internal predecessors, (34), 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 [2022-11-02 20:38:09,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:38:09,945 INFO L225 Difference]: With dead ends: 44 [2022-11-02 20:38:09,945 INFO L226 Difference]: Without dead ends: 0 [2022-11-02 20:38:09,945 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 30 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=118, Invalid=302, Unknown=0, NotChecked=0, Total=420 [2022-11-02 20:38:09,946 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 33 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 23 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:38:09,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 39 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 30 Invalid, 0 Unknown, 23 Unchecked, 0.1s Time] [2022-11-02 20:38:09,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-02 20:38:09,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-02 20:38:09,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:38:09,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-02 20:38:09,948 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 23 [2022-11-02 20:38:09,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:38:09,948 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-02 20:38:09,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.4285714285714284) internal successors, (34), 14 states have internal predecessors, (34), 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) [2022-11-02 20:38:09,948 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-02 20:38:09,951 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-02 20:38:09,954 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-02 20:38:09,973 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a57fe7-dabf-4821-801d-52f95b51dfd4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-02 20:38:10,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a57fe7-dabf-4821-801d-52f95b51dfd4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:38:10,169 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-02 20:38:10,295 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-02 20:38:10,295 INFO L899 garLoopResultBuilder]: For program point L141(line 141) no Hoare annotation was computed. [2022-11-02 20:38:10,295 INFO L899 garLoopResultBuilder]: For program point L141-2(line 141) no Hoare annotation was computed. [2022-11-02 20:38:10,296 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-02 20:38:10,296 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-02 20:38:10,296 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-02 20:38:10,296 INFO L895 garLoopResultBuilder]: At program point L154(lines 22 155) the Hoare annotation is: false [2022-11-02 20:38:10,296 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 20) no Hoare annotation was computed. [2022-11-02 20:38:10,296 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2022-11-02 20:38:10,296 INFO L899 garLoopResultBuilder]: For program point L20-1(line 20) no Hoare annotation was computed. [2022-11-02 20:38:10,296 INFO L899 garLoopResultBuilder]: For program point L146(line 146) no Hoare annotation was computed. [2022-11-02 20:38:10,297 INFO L899 garLoopResultBuilder]: For program point L20-3(line 20) no Hoare annotation was computed. [2022-11-02 20:38:10,297 INFO L899 garLoopResultBuilder]: For program point L146-2(line 146) no Hoare annotation was computed. [2022-11-02 20:38:10,297 INFO L895 garLoopResultBuilder]: At program point L80-2(lines 80 153) the Hoare annotation is: (let ((.cse0 (= (_ bv1 8) |ULTIMATE.start_main_~mask_SORT_1~0#1|)) (.cse1 (= |ULTIMATE.start_main_~state_8~0#1| (_ bv0 8))) (.cse2 (= (_ bv1 8) |ULTIMATE.start_main_~var_21~0#1|)) (.cse3 (= |ULTIMATE.start_main_~var_12~0#1| (_ bv0 32)))) (or (and .cse0 (= |ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)) (= (_ bv1 8) |ULTIMATE.start_main_~var_76_arg_2~0#1|) (= |ULTIMATE.start_main_~var_72_arg_1~0#1| (_ bv0 8)) (= |ULTIMATE.start_main_~next_73_arg_1~0#1| (_ bv0 8)) .cse1 .cse2 .cse3) (and .cse0 .cse1 (= (_ bv0 8) |ULTIMATE.start_main_~state_25~0#1|) .cse2 .cse3 (= (_ bv0 8) |ULTIMATE.start_main_~state_14~0#1|)))) [2022-11-02 20:38:10,297 INFO L899 garLoopResultBuilder]: For program point L80-3(lines 80 153) no Hoare annotation was computed. [2022-11-02 20:38:10,297 INFO L899 garLoopResultBuilder]: For program point L136(line 136) no Hoare annotation was computed. [2022-11-02 20:38:10,297 INFO L899 garLoopResultBuilder]: For program point L136-2(line 136) no Hoare annotation was computed. [2022-11-02 20:38:10,301 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-11-02 20:38:10,303 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-02 20:38:10,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 08:38:10 BoogieIcfgContainer [2022-11-02 20:38:10,330 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-02 20:38:10,331 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-02 20:38:10,331 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-02 20:38:10,331 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-02 20:38:10,332 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:38:04" (3/4) ... [2022-11-02 20:38:10,335 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-02 20:38:10,350 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-11-02 20:38:10,351 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-02 20:38:10,351 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-02 20:38:10,400 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.witnessprinter has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSLBacktranslationValueProvider.getStringFromIASTNode(CACSLBacktranslationValueProvider.java:78) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSLBacktranslationValueProvider.getStringFromStep(CACSLBacktranslationValueProvider.java:59) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSLBacktranslationValueProvider.getStringFromStep(CACSLBacktranslationValueProvider.java:1) at de.uni_freiburg.informatik.ultimate.witnessprinter.graphml.GeneratedWitnessEdge.getSourceCode(GeneratedWitnessEdge.java:153) at de.uni_freiburg.informatik.ultimate.witnessprinter.CorrectnessWitnessGenerator.lambda$2(CorrectnessWitnessGenerator.java:95) at edu.uci.ics.jung.io.GraphMLWriter.writeEdgeData(GraphMLWriter.java:237) at de.uni_freiburg.informatik.ultimate.witnessprinter.graphml.UltimateGraphMLWriter.save(UltimateGraphMLWriter.java:106) at de.uni_freiburg.informatik.ultimate.witnessprinter.CorrectnessWitnessGenerator.makeGraphMLString(CorrectnessWitnessGenerator.java:115) at de.uni_freiburg.informatik.ultimate.witnessprinter.WitnessPrinter.generateProofWitness(WitnessPrinter.java:158) at de.uni_freiburg.informatik.ultimate.witnessprinter.WitnessPrinter.finish(WitnessPrinter.java:138) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:131) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-02 20:38:10,406 INFO L158 Benchmark]: Toolchain (without parser) took 7271.37ms. Allocated memory was 83.9MB in the beginning and 142.6MB in the end (delta: 58.7MB). Free memory was 48.3MB in the beginning and 120.2MB in the end (delta: -71.9MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:38:10,406 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 83.9MB. Free memory was 65.3MB in the beginning and 65.2MB in the end (delta: 79.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:38:10,407 INFO L158 Benchmark]: CACSL2BoogieTranslator took 436.67ms. Allocated memory is still 83.9MB. Free memory was 48.1MB in the beginning and 66.2MB in the end (delta: -18.1MB). Peak memory consumption was 6.1MB. Max. memory is 16.1GB. [2022-11-02 20:38:10,407 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.04ms. Allocated memory is still 83.9MB. Free memory was 66.0MB in the beginning and 64.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 20:38:10,408 INFO L158 Benchmark]: Boogie Preprocessor took 59.06ms. Allocated memory is still 83.9MB. Free memory was 64.0MB in the beginning and 62.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:38:10,408 INFO L158 Benchmark]: RCFGBuilder took 437.35ms. Allocated memory is still 83.9MB. Free memory was 62.5MB in the beginning and 48.3MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-02 20:38:10,410 INFO L158 Benchmark]: TraceAbstraction took 6210.63ms. Allocated memory was 83.9MB in the beginning and 142.6MB in the end (delta: 58.7MB). Free memory was 47.7MB in the beginning and 123.3MB in the end (delta: -75.6MB). Peak memory consumption was 62.3MB. Max. memory is 16.1GB. [2022-11-02 20:38:10,410 INFO L158 Benchmark]: Witness Printer took 74.57ms. Allocated memory is still 142.6MB. Free memory was 123.3MB in the beginning and 120.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 20:38:10,413 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 83.9MB. Free memory was 65.3MB in the beginning and 65.2MB in the end (delta: 79.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 436.67ms. Allocated memory is still 83.9MB. Free memory was 48.1MB in the beginning and 66.2MB in the end (delta: -18.1MB). Peak memory consumption was 6.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.04ms. Allocated memory is still 83.9MB. Free memory was 66.0MB in the beginning and 64.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.06ms. Allocated memory is still 83.9MB. Free memory was 64.0MB in the beginning and 62.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 437.35ms. Allocated memory is still 83.9MB. Free memory was 62.5MB in the beginning and 48.3MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 6210.63ms. Allocated memory was 83.9MB in the beginning and 142.6MB in the end (delta: 58.7MB). Free memory was 47.7MB in the beginning and 123.3MB in the end (delta: -75.6MB). Peak memory consumption was 62.3MB. Max. memory is 16.1GB. * Witness Printer took 74.57ms. Allocated memory is still 142.6MB. Free memory was 123.3MB in the beginning and 120.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. 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 - PositiveResult [Line: 20]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 17 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.1s, OverallIterations: 6, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 274 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 274 mSDsluCounter, 422 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 65 IncrementalHoareTripleChecker+Unchecked, 321 mSDsCounter, 31 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 243 IncrementalHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 31 mSolverCounterUnsat, 101 mSDtfsCounter, 243 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 170 GetRequests, 103 SyntacticMatches, 3 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=5, InterpolantAutomatonStates: 49, 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, 6 MinimizatonAttempts, 109 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 7 NumberOfFragments, 46 HoareAnnotationTreeSize, 2 FomulaSimplifications, 24 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 317 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 93 NumberOfCodeBlocks, 93 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 144 ConstructedInterpolants, 29 QuantifiedInterpolants, 2140 SizeOfPredicates, 84 NumberOfNonLiveVariables, 917 ConjunctsInSsa, 94 ConjunctsInUnsatCore, 9 InterpolantComputations, 3 PerfectInterpolantSequences, 40/60 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 80]: Loop Invariant Derived loop invariant: (((((((1bv8 == mask_SORT_1 && cond == 1bv32) && 1bv8 == var_76_arg_2) && var_72_arg_1 == 0bv8) && next_73_arg_1 == 0bv8) && state_8 == 0bv8) && 1bv8 == var_21) && var_12 == 0bv32) || (((((1bv8 == mask_SORT_1 && state_8 == 0bv8) && 0bv8 == state_25) && 1bv8 == var_21) && var_12 == 0bv32) && 0bv8 == state_14) - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 0 * Results from de.uni_freiburg.informatik.ultimate.witnessprinter: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.witnessprinter: NullPointerException: null: de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSLBacktranslationValueProvider.getStringFromIASTNode(CACSLBacktranslationValueProvider.java:78) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-11-02 20:38:10,481 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a57fe7-dabf-4821-801d-52f95b51dfd4/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: NullPointerException: null