./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal189.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f80f722-c435-48ef-a096-f54313d738db/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f80f722-c435-48ef-a096-f54313d738db/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f80f722-c435-48ef-a096-f54313d738db/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f80f722-c435-48ef-a096-f54313d738db/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal189.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f80f722-c435-48ef-a096-f54313d738db/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f80f722-c435-48ef-a096-f54313d738db/bin/uautomizer-TMbwUNV5ro --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 8cd5fa825a5499f2f0d0374aa94d51029dd6b19ac6a84a8f709fec9da0c24509 --- 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-8393723 [2022-11-18 20:21:18,751 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:21:18,753 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:21:18,792 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:21:18,794 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:21:18,796 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:21:18,800 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:21:18,806 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:21:18,809 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:21:18,811 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:21:18,813 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:21:18,815 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:21:18,817 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:21:18,822 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:21:18,824 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:21:18,826 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:21:18,829 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:21:18,837 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:21:18,840 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:21:18,842 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:21:18,852 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:21:18,853 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:21:18,855 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:21:18,856 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:21:18,860 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:21:18,861 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:21:18,861 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:21:18,862 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:21:18,863 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:21:18,864 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:21:18,864 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:21:18,865 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:21:18,866 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:21:18,871 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:21:18,874 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:21:18,874 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:21:18,875 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:21:18,875 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:21:18,875 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:21:18,876 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:21:18,877 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:21:18,878 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f80f722-c435-48ef-a096-f54313d738db/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-18 20:21:18,931 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:21:18,931 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:21:18,932 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:21:18,933 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:21:18,934 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:21:18,934 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:21:18,935 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:21:18,935 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:21:18,935 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:21:18,935 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:21:18,937 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:21:18,937 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:21:18,937 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:21:18,937 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:21:18,938 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:21:18,938 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:21:18,938 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:21:18,938 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:21:18,939 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:21:18,939 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:21:18,939 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:21:18,939 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:21:18,940 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:21:18,940 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:21:18,940 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:21:18,940 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:21:18,942 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:21:18,942 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:21:18,943 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:21:18,943 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:21:18,943 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_9f80f722-c435-48ef-a096-f54313d738db/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f80f722-c435-48ef-a096-f54313d738db/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8cd5fa825a5499f2f0d0374aa94d51029dd6b19ac6a84a8f709fec9da0c24509 [2022-11-18 20:21:19,292 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:21:19,324 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:21:19,327 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:21:19,329 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:21:19,330 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:21:19,332 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f80f722-c435-48ef-a096-f54313d738db/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal189.c [2022-11-18 20:21:19,412 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f80f722-c435-48ef-a096-f54313d738db/bin/uautomizer-TMbwUNV5ro/data/360417f35/e6522e33482b46818078ea0b86114fc2/FLAGdecdccd52 [2022-11-18 20:21:20,910 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:21:20,911 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f80f722-c435-48ef-a096-f54313d738db/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal189.c [2022-11-18 20:21:21,093 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f80f722-c435-48ef-a096-f54313d738db/bin/uautomizer-TMbwUNV5ro/data/360417f35/e6522e33482b46818078ea0b86114fc2/FLAGdecdccd52 [2022-11-18 20:21:21,299 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f80f722-c435-48ef-a096-f54313d738db/bin/uautomizer-TMbwUNV5ro/data/360417f35/e6522e33482b46818078ea0b86114fc2 [2022-11-18 20:21:21,302 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:21:21,306 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:21:21,308 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:21:21,308 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:21:21,313 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:21:21,314 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:21:21" (1/1) ... [2022-11-18 20:21:21,315 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2adfd156 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:21:21, skipping insertion in model container [2022-11-18 20:21:21,316 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:21:21" (1/1) ... [2022-11-18 20:21:21,325 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:21:21,838 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:21:22,547 WARN L234 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_9f80f722-c435-48ef-a096-f54313d738db/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal189.c[1107,1120] [2022-11-18 20:21:25,479 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:21:25,485 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:21:25,500 WARN L234 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_9f80f722-c435-48ef-a096-f54313d738db/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal189.c[1107,1120] [2022-11-18 20:21:28,150 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:21:28,165 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:21:28,166 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:21:28 WrapperNode [2022-11-18 20:21:28,168 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:21:28,169 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:21:28,170 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:21:28,171 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:21:28,180 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:21:28" (1/1) ... [2022-11-18 20:21:28,575 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:21:28" (1/1) ... [2022-11-18 20:21:30,947 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 56855 [2022-11-18 20:21:30,948 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:21:30,948 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:21:30,948 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:21:30,949 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:21:30,960 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:21:28" (1/1) ... [2022-11-18 20:21:30,960 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:21:28" (1/1) ... [2022-11-18 20:21:31,775 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:21:28" (1/1) ... [2022-11-18 20:21:31,776 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:21:28" (1/1) ... [2022-11-18 20:21:32,456 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:21:28" (1/1) ... [2022-11-18 20:21:32,672 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:21:28" (1/1) ... [2022-11-18 20:21:32,829 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:21:28" (1/1) ... [2022-11-18 20:21:32,951 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:21:28" (1/1) ... [2022-11-18 20:21:33,394 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:21:33,395 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:21:33,395 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:21:33,396 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:21:33,397 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:21:28" (1/1) ... [2022-11-18 20:21:33,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:21:33,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f80f722-c435-48ef-a096-f54313d738db/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:21:33,437 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f80f722-c435-48ef-a096-f54313d738db/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:21:33,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f80f722-c435-48ef-a096-f54313d738db/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:21:33,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:21:33,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:21:38,342 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:21:38,345 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:22:27,737 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:22:27,820 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:22:27,820 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-18 20:22:27,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:22:27 BoogieIcfgContainer [2022-11-18 20:22:27,835 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:22:27,839 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:22:27,839 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:22:27,843 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:22:27,844 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:21:21" (1/3) ... [2022-11-18 20:22:27,845 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44b05d41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:22:27, skipping insertion in model container [2022-11-18 20:22:27,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:21:28" (2/3) ... [2022-11-18 20:22:27,846 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44b05d41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:22:27, skipping insertion in model container [2022-11-18 20:22:27,846 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:22:27" (3/3) ... [2022-11-18 20:22:27,848 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal189.c [2022-11-18 20:22:27,874 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:22:27,874 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 20:22:28,133 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:22:28,150 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;@3efadd34, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:22:28,150 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 20:22:28,192 INFO L276 IsEmpty]: Start isEmpty. Operand has 10808 states, 10806 states have (on average 1.6664815843050158) internal successors, (18008), 10807 states have internal predecessors, (18008), 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) [2022-11-18 20:22:28,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2022-11-18 20:22:28,235 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:22:28,237 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:22:28,237 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:22:28,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:22:28,245 INFO L85 PathProgramCache]: Analyzing trace with hash -952596549, now seen corresponding path program 1 times [2022-11-18 20:22:28,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:22:28,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152290068] [2022-11-18 20:22:28,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:22:28,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:22:30,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:22:34,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:22:34,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:22:34,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152290068] [2022-11-18 20:22:34,528 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152290068] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:22:34,529 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:22:34,529 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:22:34,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491929252] [2022-11-18 20:22:34,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:22:34,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:22:34,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:22:34,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:22:34,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:22:34,615 INFO L87 Difference]: Start difference. First operand has 10808 states, 10806 states have (on average 1.6664815843050158) internal successors, (18008), 10807 states have internal predecessors, (18008), 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 82.25) internal successors, (329), 4 states have internal predecessors, (329), 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) [2022-11-18 20:22:35,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:22:35,963 INFO L93 Difference]: Finished difference Result 32896 states and 54822 transitions. [2022-11-18 20:22:35,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:22:35,967 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 82.25) internal successors, (329), 4 states have internal predecessors, (329), 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 329 [2022-11-18 20:22:35,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:22:36,065 INFO L225 Difference]: With dead ends: 32896 [2022-11-18 20:22:36,065 INFO L226 Difference]: Without dead ends: 22090 [2022-11-18 20:22:36,096 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:22:36,101 INFO L413 NwaCegarLoop]: 18810 mSDtfsCounter, 53982 mSDsluCounter, 19613 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53982 SdHoareTripleChecker+Valid, 38423 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:22:36,102 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53982 Valid, 38423 Invalid, 18 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:22:36,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22090 states. [2022-11-18 20:22:36,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22090 to 10806. [2022-11-18 20:22:36,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10806 states, 10805 states have (on average 1.6662656177695512) internal successors, (18004), 10805 states have internal predecessors, (18004), 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) [2022-11-18 20:22:36,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10806 states to 10806 states and 18004 transitions. [2022-11-18 20:22:36,566 INFO L78 Accepts]: Start accepts. Automaton has 10806 states and 18004 transitions. Word has length 329 [2022-11-18 20:22:36,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:22:36,572 INFO L495 AbstractCegarLoop]: Abstraction has 10806 states and 18004 transitions. [2022-11-18 20:22:36,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 82.25) internal successors, (329), 4 states have internal predecessors, (329), 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) [2022-11-18 20:22:36,574 INFO L276 IsEmpty]: Start isEmpty. Operand 10806 states and 18004 transitions. [2022-11-18 20:22:36,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2022-11-18 20:22:36,585 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:22:36,585 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:22:36,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:22:36,586 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:22:36,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:22:36,588 INFO L85 PathProgramCache]: Analyzing trace with hash 536064527, now seen corresponding path program 1 times [2022-11-18 20:22:36,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:22:36,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485786908] [2022-11-18 20:22:36,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:22:36,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:22:57,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:05,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:23:05,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:23:05,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485786908] [2022-11-18 20:23:05,634 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485786908] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:23:05,634 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:23:05,634 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 20:23:05,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026146259] [2022-11-18 20:23:05,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:23:05,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 20:23:05,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:23:05,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:23:05,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:23:05,641 INFO L87 Difference]: Start difference. First operand 10806 states and 18004 transitions. Second operand has 7 states, 7 states have (on average 47.142857142857146) internal successors, (330), 7 states have internal predecessors, (330), 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) [2022-11-18 20:23:55,584 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []