./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 e04fb08f 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_3a892a95-5640-484a-a8ee-1f91842935b1/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a892a95-5640-484a-a8ee-1f91842935b1/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a892a95-5640-484a-a8ee-1f91842935b1/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a892a95-5640-484a-a8ee-1f91842935b1/bin/uautomizer-tPACEb0tL8/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_3a892a95-5640-484a-a8ee-1f91842935b1/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a892a95-5640-484a-a8ee-1f91842935b1/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 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-e04fb08 [2022-11-16 11:01:28,511 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:01:28,513 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:01:28,582 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:01:28,582 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:01:28,586 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:01:28,589 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:01:28,591 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:01:28,592 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:01:28,593 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:01:28,594 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:01:28,595 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:01:28,596 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:01:28,597 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:01:28,598 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:01:28,599 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:01:28,602 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:01:28,608 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:01:28,615 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:01:28,620 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:01:28,621 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:01:28,625 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:01:28,629 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:01:28,630 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:01:28,636 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:01:28,640 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:01:28,641 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:01:28,642 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:01:28,643 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:01:28,644 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:01:28,645 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:01:28,646 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:01:28,647 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:01:28,649 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:01:28,652 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:01:28,652 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:01:28,653 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:01:28,653 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:01:28,653 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:01:28,654 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:01:28,655 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:01:28,656 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a892a95-5640-484a-a8ee-1f91842935b1/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-16 11:01:28,692 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:01:28,692 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:01:28,692 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:01:28,692 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:01:28,693 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:01:28,693 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:01:28,694 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:01:28,694 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:01:28,694 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:01:28,694 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:01:28,695 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:01:28,695 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:01:28,695 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:01:28,695 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:01:28,695 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:01:28,695 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:01:28,696 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:01:28,696 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:01:28,696 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:01:28,696 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:01:28,696 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:01:28,697 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:01:28,697 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:01:28,697 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:01:28,697 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:01:28,697 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:01:28,698 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:01:28,698 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:01:28,698 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:01:28,698 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:01:28,698 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_3a892a95-5640-484a-a8ee-1f91842935b1/bin/uautomizer-tPACEb0tL8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a892a95-5640-484a-a8ee-1f91842935b1/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8cd5fa825a5499f2f0d0374aa94d51029dd6b19ac6a84a8f709fec9da0c24509 [2022-11-16 11:01:28,989 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:01:29,025 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:01:29,028 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:01:29,031 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:01:29,032 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:01:29,033 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a892a95-5640-484a-a8ee-1f91842935b1/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal189.c [2022-11-16 11:01:29,109 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a892a95-5640-484a-a8ee-1f91842935b1/bin/uautomizer-tPACEb0tL8/data/94f92b2c0/705344eec1e5490b8a4909a97a7f761c/FLAG041f0f617 [2022-11-16 11:01:30,510 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:01:30,510 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a892a95-5640-484a-a8ee-1f91842935b1/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal189.c [2022-11-16 11:01:30,638 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a892a95-5640-484a-a8ee-1f91842935b1/bin/uautomizer-tPACEb0tL8/data/94f92b2c0/705344eec1e5490b8a4909a97a7f761c/FLAG041f0f617 [2022-11-16 11:01:31,020 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a892a95-5640-484a-a8ee-1f91842935b1/bin/uautomizer-tPACEb0tL8/data/94f92b2c0/705344eec1e5490b8a4909a97a7f761c [2022-11-16 11:01:31,023 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:01:31,024 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:01:31,026 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:01:31,026 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:01:31,035 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:01:31,036 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:01:31" (1/1) ... [2022-11-16 11:01:31,037 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@145c981b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:01:31, skipping insertion in model container [2022-11-16 11:01:31,037 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:01:31" (1/1) ... [2022-11-16 11:01:31,045 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:01:31,462 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:01:32,035 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a892a95-5640-484a-a8ee-1f91842935b1/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal189.c[1107,1120] [2022-11-16 11:01:34,462 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:01:34,466 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:01:34,481 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a892a95-5640-484a-a8ee-1f91842935b1/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal189.c[1107,1120] [2022-11-16 11:01:36,626 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:01:36,639 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:01:36,639 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:01:36 WrapperNode [2022-11-16 11:01:36,641 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:01:36,642 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:01:36,643 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:01:36,643 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:01:36,650 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:01:36" (1/1) ... [2022-11-16 11:01:37,069 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:01:36" (1/1) ... [2022-11-16 11:01:39,254 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 56855 [2022-11-16 11:01:39,254 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:01:39,255 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:01:39,255 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:01:39,255 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:01:39,262 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:01:36" (1/1) ... [2022-11-16 11:01:39,262 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:01:36" (1/1) ... [2022-11-16 11:01:39,958 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:01:36" (1/1) ... [2022-11-16 11:01:39,958 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:01:36" (1/1) ... [2022-11-16 11:01:40,669 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:01:36" (1/1) ... [2022-11-16 11:01:40,871 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:01:36" (1/1) ... [2022-11-16 11:01:41,011 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:01:36" (1/1) ... [2022-11-16 11:01:41,095 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:01:36" (1/1) ... [2022-11-16 11:01:41,467 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:01:41,469 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:01:41,469 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:01:41,469 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:01:41,470 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:01:36" (1/1) ... [2022-11-16 11:01:41,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:01:41,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a892a95-5640-484a-a8ee-1f91842935b1/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:01:41,506 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a892a95-5640-484a-a8ee-1f91842935b1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:01:41,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a892a95-5640-484a-a8ee-1f91842935b1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:01:41,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:01:41,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:01:45,610 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:01:45,612 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:02:27,393 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:02:27,449 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:02:27,449 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 11:02:27,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:02:27 BoogieIcfgContainer [2022-11-16 11:02:27,458 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:02:27,461 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:02:27,461 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:02:27,465 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:02:27,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:01:31" (1/3) ... [2022-11-16 11:02:27,466 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ae22947 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:02:27, skipping insertion in model container [2022-11-16 11:02:27,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:01:36" (2/3) ... [2022-11-16 11:02:27,466 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ae22947 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:02:27, skipping insertion in model container [2022-11-16 11:02:27,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:02:27" (3/3) ... [2022-11-16 11:02:27,468 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal189.c [2022-11-16 11:02:27,485 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:02:27,486 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 11:02:27,814 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:02:27,820 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;@567186ac, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:02:27,820 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 11:02:27,861 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) [2022-11-16 11:02:27,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2022-11-16 11:02:27,900 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:02:27,902 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] [2022-11-16 11:02:27,903 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:02:27,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:02:27,914 INFO L85 PathProgramCache]: Analyzing trace with hash -952596549, now seen corresponding path program 1 times [2022-11-16 11:02:27,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:02:27,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406259812] [2022-11-16 11:02:27,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:02:27,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:02:29,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:02:32,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:02:32,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:02:32,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406259812] [2022-11-16 11:02:32,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406259812] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:02:32,564 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:02:32,564 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:02:32,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626694945] [2022-11-16 11:02:32,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:02:32,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:02:32,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:02:32,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:02:32,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:02:32,639 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) [2022-11-16 11:02:33,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:02:33,884 INFO L93 Difference]: Finished difference Result 32896 states and 54822 transitions. [2022-11-16 11:02:33,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:02:33,886 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 [2022-11-16 11:02:33,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:02:33,980 INFO L225 Difference]: With dead ends: 32896 [2022-11-16 11:02:33,981 INFO L226 Difference]: Without dead ends: 22090 [2022-11-16 11:02:34,001 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:02:34,006 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 [2022-11-16 11:02:34,007 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] [2022-11-16 11:02:34,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22090 states. [2022-11-16 11:02:34,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22090 to 10806. [2022-11-16 11:02:34,361 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) [2022-11-16 11:02:34,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10806 states to 10806 states and 18004 transitions. [2022-11-16 11:02:34,408 INFO L78 Accepts]: Start accepts. Automaton has 10806 states and 18004 transitions. Word has length 329 [2022-11-16 11:02:34,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:02:34,412 INFO L495 AbstractCegarLoop]: Abstraction has 10806 states and 18004 transitions. [2022-11-16 11:02:34,413 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) [2022-11-16 11:02:34,414 INFO L276 IsEmpty]: Start isEmpty. Operand 10806 states and 18004 transitions. [2022-11-16 11:02:34,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2022-11-16 11:02:34,420 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:02:34,421 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] [2022-11-16 11:02:34,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:02:34,422 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:02:34,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:02:34,423 INFO L85 PathProgramCache]: Analyzing trace with hash 536064527, now seen corresponding path program 1 times [2022-11-16 11:02:34,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:02:34,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875234987] [2022-11-16 11:02:34,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:02:34,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:02:50,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:02:56,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:02:56,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:02:56,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875234987] [2022-11-16 11:02:56,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875234987] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:02:56,714 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:02:56,714 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 11:02:56,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366208384] [2022-11-16 11:02:56,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:02:56,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 11:02:56,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:02:56,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 11:02:56,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:02:56,720 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) [2022-11-16 11:03:36,479 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-16 11:03:39,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:03:39,460 INFO L93 Difference]: Finished difference Result 76148 states and 126872 transitions. [2022-11-16 11:03:39,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-16 11:03:39,461 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 330 [2022-11-16 11:03:39,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:03:39,612 INFO L225 Difference]: With dead ends: 76148 [2022-11-16 11:03:39,613 INFO L226 Difference]: Without dead ends: 65344 [2022-11-16 11:03:39,652 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=92, Invalid=180, Unknown=0, NotChecked=0, Total=272 [2022-11-16 11:03:39,653 INFO L413 NwaCegarLoop]: 29483 mSDtfsCounter, 179888 mSDsluCounter, 102984 mSDsCounter, 0 mSdLazyCounter, 30640 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179888 SdHoareTripleChecker+Valid, 132467 SdHoareTripleChecker+Invalid, 30647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.7s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 30640 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.7s IncrementalHoareTripleChecker+Time [2022-11-16 11:03:39,654 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [179888 Valid, 132467 Invalid, 30647 Unknown, 0 Unchecked, 0.7s Time], IncrementalHoareTripleChecker [6 Valid, 30640 Invalid, 1 Unknown, 0 Unchecked, 39.7s Time] [2022-11-16 11:03:39,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65344 states. [2022-11-16 11:03:40,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65344 to 10912. [2022-11-16 11:03:40,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10912 states, 10911 states have (on average 1.666116762899826) internal successors, (18179), 10911 states have internal predecessors, (18179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:03:40,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10912 states to 10912 states and 18179 transitions. [2022-11-16 11:03:40,288 INFO L78 Accepts]: Start accepts. Automaton has 10912 states and 18179 transitions. Word has length 330 [2022-11-16 11:03:40,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:03:40,289 INFO L495 AbstractCegarLoop]: Abstraction has 10912 states and 18179 transitions. [2022-11-16 11:03:40,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2022-11-16 11:03:40,291 INFO L276 IsEmpty]: Start isEmpty. Operand 10912 states and 18179 transitions. [2022-11-16 11:03:40,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2022-11-16 11:03:40,298 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:03:40,298 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, 1] [2022-11-16 11:03:40,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:03:40,299 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:03:40,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:03:40,301 INFO L85 PathProgramCache]: Analyzing trace with hash 1619387387, now seen corresponding path program 1 times [2022-11-16 11:03:40,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:03:40,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468387853] [2022-11-16 11:03:40,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:03:40,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:03:53,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:03:57,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:03:57,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:03:57,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468387853] [2022-11-16 11:03:57,963 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468387853] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:03:57,969 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:03:57,970 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 11:03:57,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852344035] [2022-11-16 11:03:57,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:03:57,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 11:03:57,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:03:57,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 11:03:57,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:03:57,976 INFO L87 Difference]: Start difference. First operand 10912 states and 18179 transitions. Second operand has 7 states, 7 states have (on average 47.285714285714285) internal successors, (331), 7 states have internal predecessors, (331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:04:14,813 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 [] [2022-11-16 11:04:15,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:04:15,633 INFO L93 Difference]: Finished difference Result 102315 states and 170226 transitions. [2022-11-16 11:04:15,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-16 11:04:15,634 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 47.285714285714285) internal successors, (331), 7 states have internal predecessors, (331), 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 331 [2022-11-16 11:04:15,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:04:15,789 INFO L225 Difference]: With dead ends: 102315 [2022-11-16 11:04:15,789 INFO L226 Difference]: Without dead ends: 91403 [2022-11-16 11:04:15,813 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:04:15,816 INFO L413 NwaCegarLoop]: 33720 mSDtfsCounter, 162628 mSDsluCounter, 183523 mSDsCounter, 0 mSdLazyCounter, 9037 mSolverCounterSat, 724 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162628 SdHoareTripleChecker+Valid, 217243 SdHoareTripleChecker+Invalid, 9762 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.6s SdHoareTripleChecker+Time, 724 IncrementalHoareTripleChecker+Valid, 9037 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:04:15,818 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [162628 Valid, 217243 Invalid, 9762 Unknown, 0 Unchecked, 0.6s Time], IncrementalHoareTripleChecker [724 Valid, 9037 Invalid, 1 Unknown, 0 Unchecked, 15.0s Time] [2022-11-16 11:04:15,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91403 states. [2022-11-16 11:04:16,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91403 to 20446. [2022-11-16 11:04:16,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20446 states, 20445 states have (on average 1.619369038884813) internal successors, (33108), 20445 states have internal predecessors, (33108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:04:16,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20446 states to 20446 states and 33108 transitions. [2022-11-16 11:04:16,475 INFO L78 Accepts]: Start accepts. Automaton has 20446 states and 33108 transitions. Word has length 331 [2022-11-16 11:04:16,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:04:16,476 INFO L495 AbstractCegarLoop]: Abstraction has 20446 states and 33108 transitions. [2022-11-16 11:04:16,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 47.285714285714285) internal successors, (331), 7 states have internal predecessors, (331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:04:16,477 INFO L276 IsEmpty]: Start isEmpty. Operand 20446 states and 33108 transitions. [2022-11-16 11:04:16,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2022-11-16 11:04:16,482 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:04:16,482 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, 1] [2022-11-16 11:04:16,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 11:04:16,483 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:04:16,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:04:16,484 INFO L85 PathProgramCache]: Analyzing trace with hash -756666093, now seen corresponding path program 1 times [2022-11-16 11:04:16,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:04:16,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345075434] [2022-11-16 11:04:16,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:04:16,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:04:21,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:04:26,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:04:26,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:04:26,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345075434] [2022-11-16 11:04:26,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345075434] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:04:26,034 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:04:26,034 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:04:26,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503569663] [2022-11-16 11:04:26,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:04:26,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:04:26,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:04:26,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:04:26,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:04:26,044 INFO L87 Difference]: Start difference. First operand 20446 states and 33108 transitions. Second operand has 9 states, 9 states have (on average 36.77777777777778) internal successors, (331), 9 states have internal predecessors, (331), 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)