./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.safe_analog_estimation_convergence.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.safe_analog_estimation_convergence.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 4de94aaabb885b39de7c063dad9a583cbef1a5037a721fe952ddb512087f6e33 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 17:54:56,507 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:54:56,509 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:54:56,531 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:54:56,532 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:54:56,533 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:54:56,535 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:54:56,537 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:54:56,539 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:54:56,540 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:54:56,542 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:54:56,543 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:54:56,544 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:54:56,545 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:54:56,546 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:54:56,548 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:54:56,549 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:54:56,550 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:54:56,552 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:54:56,554 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:54:56,556 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:54:56,558 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:54:56,559 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:54:56,560 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:54:56,564 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:54:56,564 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:54:56,565 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:54:56,566 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:54:56,566 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:54:56,568 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:54:56,568 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:54:56,569 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:54:56,570 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:54:56,571 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:54:56,572 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:54:56,573 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:54:56,574 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:54:56,574 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:54:56,574 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:54:56,575 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:54:56,576 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:54:56,584 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-25 17:54:56,628 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:54:56,630 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:54:56,631 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:54:56,632 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:54:56,633 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:54:56,633 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:54:56,634 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:54:56,634 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:54:56,635 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:54:56,635 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:54:56,636 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:54:56,637 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:54:56,637 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:54:56,637 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:54:56,637 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:54:56,637 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:54:56,638 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:54:56,638 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:54:56,638 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:54:56,639 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:54:56,639 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:54:56,639 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:54:56,639 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:54:56,640 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:54:56,640 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:54:56,640 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:54:56,640 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 17:54:56,641 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:54:56,641 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:54:56,642 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:54:56,642 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:54:56,642 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4de94aaabb885b39de7c063dad9a583cbef1a5037a721fe952ddb512087f6e33 [2022-11-25 17:54:56,970 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:54:57,007 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:54:57,011 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:54:57,012 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:54:57,013 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:54:57,015 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.safe_analog_estimation_convergence.c [2022-11-25 17:55:00,224 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:55:00,569 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:55:00,573 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.safe_analog_estimation_convergence.c [2022-11-25 17:55:00,591 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/data/4e252ef62/59e4678ba2f84c8183667bbc5237ba9f/FLAGc6ca6ca66 [2022-11-25 17:55:00,612 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/data/4e252ef62/59e4678ba2f84c8183667bbc5237ba9f [2022-11-25 17:55:00,618 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:55:00,622 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:55:00,628 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:55:00,629 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:55:00,633 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:55:00,634 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:55:00" (1/1) ... [2022-11-25 17:55:00,635 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@634df456 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:55:00, skipping insertion in model container [2022-11-25 17:55:00,636 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:55:00" (1/1) ... [2022-11-25 17:55:00,644 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:55:00,714 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:55:00,952 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.safe_analog_estimation_convergence.c[1120,1133] [2022-11-25 17:55:01,160 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:55:01,165 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:55:01,177 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.safe_analog_estimation_convergence.c[1120,1133] [2022-11-25 17:55:01,312 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:55:01,329 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:55:01,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:55:01 WrapperNode [2022-11-25 17:55:01,330 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:55:01,331 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:55:01,331 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:55:01,332 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:55:01,341 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:55:01" (1/1) ... [2022-11-25 17:55:01,358 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:55:01" (1/1) ... [2022-11-25 17:55:01,421 INFO L138 Inliner]: procedures = 11, calls = 5, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 413 [2022-11-25 17:55:01,422 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:55:01,423 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:55:01,423 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:55:01,423 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:55:01,435 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:55:01" (1/1) ... [2022-11-25 17:55:01,435 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:55:01" (1/1) ... [2022-11-25 17:55:01,445 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:55:01" (1/1) ... [2022-11-25 17:55:01,445 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:55:01" (1/1) ... [2022-11-25 17:55:01,461 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:55:01" (1/1) ... [2022-11-25 17:55:01,465 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:55:01" (1/1) ... [2022-11-25 17:55:01,469 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:55:01" (1/1) ... [2022-11-25 17:55:01,473 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:55:01" (1/1) ... [2022-11-25 17:55:01,479 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:55:01,480 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:55:01,481 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:55:01,481 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:55:01,482 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:55:01" (1/1) ... [2022-11-25 17:55:01,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:55:01,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:55:01,520 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:55:01,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:55:01,610 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:55:01,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:55:01,611 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-25 17:55:01,611 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-25 17:55:01,811 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:55:01,814 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:55:03,935 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:55:03,942 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:55:03,943 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 17:55:03,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:55:03 BoogieIcfgContainer [2022-11-25 17:55:03,945 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:55:03,948 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:55:03,948 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:55:03,952 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:55:03,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:55:00" (1/3) ... [2022-11-25 17:55:03,953 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53b7ddf9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:55:03, skipping insertion in model container [2022-11-25 17:55:03,953 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:55:01" (2/3) ... [2022-11-25 17:55:03,954 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53b7ddf9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:55:03, skipping insertion in model container [2022-11-25 17:55:03,954 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:55:03" (3/3) ... [2022-11-25 17:55:03,955 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.safe_analog_estimation_convergence.c [2022-11-25 17:55:03,976 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:55:03,977 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 17:55:04,032 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:55:04,041 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;@499b6a32, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:55:04,041 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 17:55:04,046 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 15 states have internal predecessors, (19), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 17:55:04,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-25 17:55:04,055 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:55:04,055 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:55:04,056 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:55:04,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:55:04,062 INFO L85 PathProgramCache]: Analyzing trace with hash -639607165, now seen corresponding path program 1 times [2022-11-25 17:55:04,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:55:04,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381034207] [2022-11-25 17:55:04,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:55:04,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:55:04,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:04,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 17:55:04,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:04,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-25 17:55:04,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:04,448 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-25 17:55:04,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:55:04,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381034207] [2022-11-25 17:55:04,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381034207] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:55:04,450 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:55:04,450 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 17:55:04,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36449822] [2022-11-25 17:55:04,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:55:04,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 17:55:04,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:55:04,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 17:55:04,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 17:55:04,493 INFO L87 Difference]: Start difference. First operand has 19 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 15 states have internal predecessors, (19), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 17:55:04,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:55:04,514 INFO L93 Difference]: Finished difference Result 32 states and 43 transitions. [2022-11-25 17:55:04,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 17:55:04,517 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 17 [2022-11-25 17:55:04,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:55:04,525 INFO L225 Difference]: With dead ends: 32 [2022-11-25 17:55:04,525 INFO L226 Difference]: Without dead ends: 15 [2022-11-25 17:55:04,529 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 17:55:04,533 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:55:04,534 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:55:04,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-11-25 17:55:04,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-11-25 17:55:04,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 17:55:04,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2022-11-25 17:55:04,579 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 17 [2022-11-25 17:55:04,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:55:04,580 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2022-11-25 17:55:04,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 17:55:04,581 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2022-11-25 17:55:04,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-25 17:55:04,584 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:55:04,584 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:55:04,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 17:55:04,585 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:55:04,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:55:04,586 INFO L85 PathProgramCache]: Analyzing trace with hash -324183425, now seen corresponding path program 1 times [2022-11-25 17:55:04,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:55:04,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947957562] [2022-11-25 17:55:04,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:55:04,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:55:06,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:55:06,382 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:55:07,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:55:07,856 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:55:07,857 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 17:55:07,859 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-25 17:55:07,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 17:55:07,866 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-25 17:55:07,870 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 17:55:07,915 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-25 17:55:07,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 05:55:07 BoogieIcfgContainer [2022-11-25 17:55:07,932 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 17:55:07,933 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 17:55:07,933 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 17:55:07,933 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 17:55:07,934 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:55:03" (3/4) ... [2022-11-25 17:55:07,938 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 17:55:07,938 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 17:55:07,939 INFO L158 Benchmark]: Toolchain (without parser) took 7317.33ms. Allocated memory was 165.7MB in the beginning and 222.3MB in the end (delta: 56.6MB). Free memory was 135.7MB in the beginning and 121.5MB in the end (delta: 14.2MB). Peak memory consumption was 73.2MB. Max. memory is 16.1GB. [2022-11-25 17:55:07,940 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 111.1MB. Free memory is still 66.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:55:07,941 INFO L158 Benchmark]: CACSL2BoogieTranslator took 701.91ms. Allocated memory is still 165.7MB. Free memory was 135.4MB in the beginning and 114.2MB in the end (delta: 21.2MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-25 17:55:07,941 INFO L158 Benchmark]: Boogie Procedure Inliner took 91.08ms. Allocated memory is still 165.7MB. Free memory was 114.2MB in the beginning and 108.8MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-25 17:55:07,942 INFO L158 Benchmark]: Boogie Preprocessor took 56.86ms. Allocated memory is still 165.7MB. Free memory was 108.8MB in the beginning and 106.1MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:55:07,943 INFO L158 Benchmark]: RCFGBuilder took 2464.98ms. Allocated memory was 165.7MB in the beginning and 222.3MB in the end (delta: 56.6MB). Free memory was 106.1MB in the beginning and 184.8MB in the end (delta: -78.8MB). Peak memory consumption was 111.3MB. Max. memory is 16.1GB. [2022-11-25 17:55:07,944 INFO L158 Benchmark]: TraceAbstraction took 3984.61ms. Allocated memory is still 222.3MB. Free memory was 183.8MB in the beginning and 121.5MB in the end (delta: 62.3MB). Peak memory consumption was 127.4MB. Max. memory is 16.1GB. [2022-11-25 17:55:07,944 INFO L158 Benchmark]: Witness Printer took 5.56ms. Allocated memory is still 222.3MB. Free memory is still 121.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:55:07,947 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 111.1MB. Free memory is still 66.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 701.91ms. Allocated memory is still 165.7MB. Free memory was 135.4MB in the beginning and 114.2MB in the end (delta: 21.2MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 91.08ms. Allocated memory is still 165.7MB. Free memory was 114.2MB in the beginning and 108.8MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.86ms. Allocated memory is still 165.7MB. Free memory was 108.8MB in the beginning and 106.1MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 2464.98ms. Allocated memory was 165.7MB in the beginning and 222.3MB in the end (delta: 56.6MB). Free memory was 106.1MB in the beginning and 184.8MB in the end (delta: -78.8MB). Peak memory consumption was 111.3MB. Max. memory is 16.1GB. * TraceAbstraction took 3984.61ms. Allocated memory is still 222.3MB. Free memory was 183.8MB in the beginning and 121.5MB in the end (delta: 62.3MB). Peak memory consumption was 127.4MB. Max. memory is 16.1GB. * Witness Printer took 5.56ms. Allocated memory is still 222.3MB. Free memory is still 121.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 20]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 180, overapproximation of bitwiseAnd at line 168, overapproximation of bitwiseComplement at line 294, overapproximation of bitwiseXor at line 292. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L28] const SORT_9 mask_SORT_9 = (SORT_9)-1 >> (sizeof(SORT_9) * 8 - 31); [L29] const SORT_9 msb_SORT_9 = (SORT_9)1 << (31 - 1); [L31] const SORT_11 mask_SORT_11 = (SORT_11)-1 >> (sizeof(SORT_11) * 8 - 16); [L32] const SORT_11 msb_SORT_11 = (SORT_11)1 << (16 - 1); [L34] const SORT_12 mask_SORT_12 = (SORT_12)-1 >> (sizeof(SORT_12) * 8 - 8); [L35] const SORT_12 msb_SORT_12 = (SORT_12)1 << (8 - 1); [L37] const SORT_20 mask_SORT_20 = (SORT_20)-1 >> (sizeof(SORT_20) * 8 - 32); [L38] const SORT_20 msb_SORT_20 = (SORT_20)1 << (32 - 1); [L40] const SORT_23 mask_SORT_23 = (SORT_23)-1 >> (sizeof(SORT_23) * 8 - 17); [L41] const SORT_23 msb_SORT_23 = (SORT_23)1 << (17 - 1); [L43] const SORT_26 mask_SORT_26 = (SORT_26)-1 >> (sizeof(SORT_26) * 8 - 18); [L44] const SORT_26 msb_SORT_26 = (SORT_26)1 << (18 - 1); [L46] const SORT_29 mask_SORT_29 = (SORT_29)-1 >> (sizeof(SORT_29) * 8 - 19); [L47] const SORT_29 msb_SORT_29 = (SORT_29)1 << (19 - 1); [L49] const SORT_32 mask_SORT_32 = (SORT_32)-1 >> (sizeof(SORT_32) * 8 - 20); [L50] const SORT_32 msb_SORT_32 = (SORT_32)1 << (20 - 1); [L52] const SORT_35 mask_SORT_35 = (SORT_35)-1 >> (sizeof(SORT_35) * 8 - 21); [L53] const SORT_35 msb_SORT_35 = (SORT_35)1 << (21 - 1); [L55] const SORT_38 mask_SORT_38 = (SORT_38)-1 >> (sizeof(SORT_38) * 8 - 22); [L56] const SORT_38 msb_SORT_38 = (SORT_38)1 << (22 - 1); [L58] const SORT_41 mask_SORT_41 = (SORT_41)-1 >> (sizeof(SORT_41) * 8 - 23); [L59] const SORT_41 msb_SORT_41 = (SORT_41)1 << (23 - 1); [L61] const SORT_44 mask_SORT_44 = (SORT_44)-1 >> (sizeof(SORT_44) * 8 - 24); [L62] const SORT_44 msb_SORT_44 = (SORT_44)1 << (24 - 1); [L64] const SORT_47 mask_SORT_47 = (SORT_47)-1 >> (sizeof(SORT_47) * 8 - 25); [L65] const SORT_47 msb_SORT_47 = (SORT_47)1 << (25 - 1); [L67] const SORT_50 mask_SORT_50 = (SORT_50)-1 >> (sizeof(SORT_50) * 8 - 26); [L68] const SORT_50 msb_SORT_50 = (SORT_50)1 << (26 - 1); [L70] const SORT_53 mask_SORT_53 = (SORT_53)-1 >> (sizeof(SORT_53) * 8 - 27); [L71] const SORT_53 msb_SORT_53 = (SORT_53)1 << (27 - 1); [L73] const SORT_56 mask_SORT_56 = (SORT_56)-1 >> (sizeof(SORT_56) * 8 - 28); [L74] const SORT_56 msb_SORT_56 = (SORT_56)1 << (28 - 1); [L76] const SORT_59 mask_SORT_59 = (SORT_59)-1 >> (sizeof(SORT_59) * 8 - 29); [L77] const SORT_59 msb_SORT_59 = (SORT_59)1 << (29 - 1); [L79] const SORT_62 mask_SORT_62 = (SORT_62)-1 >> (sizeof(SORT_62) * 8 - 30); [L80] const SORT_62 msb_SORT_62 = (SORT_62)1 << (30 - 1); [L82] const SORT_72 mask_SORT_72 = (SORT_72)-1 >> (sizeof(SORT_72) * 8 - 3); [L83] const SORT_72 msb_SORT_72 = (SORT_72)1 << (3 - 1); [L85] const SORT_96 mask_SORT_96 = (SORT_96)-1 >> (sizeof(SORT_96) * 8 - 4); [L86] const SORT_96 msb_SORT_96 = (SORT_96)1 << (4 - 1); [L88] const SORT_101 mask_SORT_101 = (SORT_101)-1 >> (sizeof(SORT_101) * 8 - 14); [L89] const SORT_101 msb_SORT_101 = (SORT_101)1 << (14 - 1); [L91] const SORT_105 mask_SORT_105 = (SORT_105)-1 >> (sizeof(SORT_105) * 8 - 2); [L92] const SORT_105 msb_SORT_105 = (SORT_105)1 << (2 - 1); [L94] const SORT_154 mask_SORT_154 = (SORT_154)-1 >> (sizeof(SORT_154) * 8 - 7); [L95] const SORT_154 msb_SORT_154 = (SORT_154)1 << (7 - 1); [L97] const SORT_1 var_7 = 0; [L98] const SORT_1 var_8 = 1; [L99] const SORT_9 var_10 = 0; [L100] const SORT_12 var_13 = 0; [L101] const SORT_12 var_14 = 200; [L102] const SORT_72 var_73 = 5; [L103] const SORT_11 var_75 = 0; [L104] const SORT_105 var_106 = 1; [L105] const SORT_12 var_112 = 127; [L106] const SORT_11 var_119 = 64; [L107] const SORT_11 var_121 = 1; [L108] const SORT_11 var_123 = 127; [L109] const SORT_11 var_126 = 200; [L110] const SORT_72 var_131 = 4; [L111] const SORT_72 var_134 = 6; [L112] const SORT_96 var_138 = 9; [L113] const SORT_154 var_155 = 64; [L114] const SORT_72 var_166 = 0; [L115] const SORT_96 var_169 = 0; [L117] SORT_1 input_2; [L118] SORT_1 input_3; [L119] SORT_1 input_4; [L121] SORT_1 state_5 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L122] SORT_11 state_17 = __VERIFIER_nondet_ushort() & mask_SORT_11; [L123] SORT_11 state_76 = __VERIFIER_nondet_ushort() & mask_SORT_11; [L124] SORT_96 state_97 = __VERIFIER_nondet_uchar() & mask_SORT_96; [L125] SORT_96 state_100 = __VERIFIER_nondet_uchar() & mask_SORT_96; [L127] SORT_11 init_77_arg_1 = var_75; [L128] state_76 = init_77_arg_1 VAL [init_77_arg_1=0, mask_SORT_1=1, mask_SORT_101=16383, mask_SORT_105=3, mask_SORT_11=65535, mask_SORT_12=255, mask_SORT_154=127, mask_SORT_20=4294967295, mask_SORT_23=4294967295, mask_SORT_26=4294967295, mask_SORT_29=4294967295, mask_SORT_32=4294967295, mask_SORT_35=4294967295, mask_SORT_38=4294967295, mask_SORT_41=4294967295, mask_SORT_44=4294967295, mask_SORT_47=4294967295, mask_SORT_50=4294967295, mask_SORT_53=4294967295, mask_SORT_56=4294967295, mask_SORT_59=4294967295, mask_SORT_62=4294967295, mask_SORT_72=7, mask_SORT_9=4294967295, mask_SORT_96=15, msb_SORT_1=1, msb_SORT_101=8192, msb_SORT_105=2, msb_SORT_11=32768, msb_SORT_12=128, msb_SORT_154=64, msb_SORT_20=2147483648, msb_SORT_23=65536, msb_SORT_26=131072, msb_SORT_29=262144, msb_SORT_32=524288, msb_SORT_35=1048576, msb_SORT_38=2097152, msb_SORT_41=4194304, msb_SORT_44=8388608, msb_SORT_47=16777216, msb_SORT_50=33554432, msb_SORT_53=67108864, msb_SORT_56=134217728, msb_SORT_59=268435456, msb_SORT_62=536870912, msb_SORT_72=4, msb_SORT_9=1073741824, msb_SORT_96=8, state_100=0, state_17=0, state_5=12, state_76=0, state_97=6, var_10=0, var_106=1, var_112=127, var_119=64, var_121=1, var_123=127, var_126=200, var_13=0, var_131=4, var_134=6, var_138=9, var_14=200, var_155=64, var_166=0, var_169=0, var_7=0, var_73=5, var_75=0, var_8=1] [L131] input_2 = __VERIFIER_nondet_uchar() [L132] input_3 = __VERIFIER_nondet_uchar() [L133] input_3 = input_3 & mask_SORT_1 [L134] input_4 = __VERIFIER_nondet_uchar() [L135] input_4 = input_4 & mask_SORT_1 [L137] SORT_1 var_84_arg_0 = state_5; [L138] SORT_1 var_84 = ~var_84_arg_0; [L139] SORT_1 var_85_arg_0 = var_84; [L140] SORT_1 var_85 = ~var_85_arg_0; [L141] SORT_1 var_86_arg_0 = state_5; [L142] SORT_1 var_86_arg_1 = var_85; [L143] SORT_1 var_86 = var_86_arg_0 | var_86_arg_1; [L144] var_86 = var_86 & mask_SORT_1 [L145] SORT_1 constr_87_arg_0 = var_86; VAL [constr_87_arg_0=7, init_77_arg_1=0, input_2=1, input_3=3, input_4=253, mask_SORT_1=1, mask_SORT_101=16383, mask_SORT_105=3, mask_SORT_11=65535, mask_SORT_12=255, mask_SORT_154=127, mask_SORT_20=4294967295, mask_SORT_23=4294967295, mask_SORT_26=4294967295, mask_SORT_29=4294967295, mask_SORT_32=4294967295, mask_SORT_35=4294967295, mask_SORT_38=4294967295, mask_SORT_41=4294967295, mask_SORT_44=4294967295, mask_SORT_47=4294967295, mask_SORT_50=4294967295, mask_SORT_53=4294967295, mask_SORT_56=4294967295, mask_SORT_59=4294967295, mask_SORT_62=4294967295, mask_SORT_72=7, mask_SORT_9=4294967295, mask_SORT_96=15, msb_SORT_1=1, msb_SORT_101=8192, msb_SORT_105=2, msb_SORT_11=32768, msb_SORT_12=128, msb_SORT_154=64, msb_SORT_20=2147483648, msb_SORT_23=65536, msb_SORT_26=131072, msb_SORT_29=262144, msb_SORT_32=524288, msb_SORT_35=1048576, msb_SORT_38=2097152, msb_SORT_41=4194304, msb_SORT_44=8388608, msb_SORT_47=16777216, msb_SORT_50=33554432, msb_SORT_53=67108864, msb_SORT_56=134217728, msb_SORT_59=268435456, msb_SORT_62=536870912, msb_SORT_72=4, msb_SORT_9=1073741824, msb_SORT_96=8, state_100=0, state_17=0, state_5=12, state_76=0, state_97=6, var_10=0, var_106=1, var_112=127, var_119=64, var_121=1, var_123=127, var_126=200, var_13=0, var_131=4, var_134=6, var_138=9, var_14=200, var_155=64, var_166=0, var_169=0, var_7=0, var_73=5, var_75=0, var_8=1, var_84=2, var_84_arg_0=12, var_85=7, var_85_arg_0=2, var_86=7, var_86_arg_0=12, var_86_arg_1=7] [L146] CALL assume_abort_if_not(constr_87_arg_0) VAL [\old(cond)=7] [L21] COND FALSE !(!cond) VAL [\old(cond)=7, cond=7] [L146] RET assume_abort_if_not(constr_87_arg_0) VAL [constr_87_arg_0=7, init_77_arg_1=0, input_2=1, input_3=3, input_4=253, mask_SORT_1=1, mask_SORT_101=16383, mask_SORT_105=3, mask_SORT_11=65535, mask_SORT_12=255, mask_SORT_154=127, mask_SORT_20=4294967295, mask_SORT_23=4294967295, mask_SORT_26=4294967295, mask_SORT_29=4294967295, mask_SORT_32=4294967295, mask_SORT_35=4294967295, mask_SORT_38=4294967295, mask_SORT_41=4294967295, mask_SORT_44=4294967295, mask_SORT_47=4294967295, mask_SORT_50=4294967295, mask_SORT_53=4294967295, mask_SORT_56=4294967295, mask_SORT_59=4294967295, mask_SORT_62=4294967295, mask_SORT_72=7, mask_SORT_9=4294967295, mask_SORT_96=15, msb_SORT_1=1, msb_SORT_101=8192, msb_SORT_105=2, msb_SORT_11=32768, msb_SORT_12=128, msb_SORT_154=64, msb_SORT_20=2147483648, msb_SORT_23=65536, msb_SORT_26=131072, msb_SORT_29=262144, msb_SORT_32=524288, msb_SORT_35=1048576, msb_SORT_38=2097152, msb_SORT_41=4194304, msb_SORT_44=8388608, msb_SORT_47=16777216, msb_SORT_50=33554432, msb_SORT_53=67108864, msb_SORT_56=134217728, msb_SORT_59=268435456, msb_SORT_62=536870912, msb_SORT_72=4, msb_SORT_9=1073741824, msb_SORT_96=8, state_100=0, state_17=0, state_5=12, state_76=0, state_97=6, var_10=0, var_106=1, var_112=127, var_119=64, var_121=1, var_123=127, var_126=200, var_13=0, var_131=4, var_134=6, var_138=9, var_14=200, var_155=64, var_166=0, var_169=0, var_7=0, var_73=5, var_75=0, var_8=1, var_84=2, var_84_arg_0=12, var_85=7, var_85_arg_0=2, var_86=7, var_86_arg_0=12, var_86_arg_1=7] [L147] SORT_1 var_88_arg_0 = var_8; [L148] var_88_arg_0 = var_88_arg_0 & mask_SORT_1 [L149] SORT_11 var_88 = var_88_arg_0; [L150] SORT_11 var_89_arg_0 = state_76; [L151] SORT_11 var_89_arg_1 = var_88; [L152] SORT_1 var_89 = var_89_arg_0 <= var_89_arg_1; [L153] SORT_1 var_90_arg_0 = input_4; [L154] SORT_1 var_90_arg_1 = var_89; [L155] SORT_1 var_90 = var_90_arg_0 ^ var_90_arg_1; [L156] SORT_1 var_91_arg_0 = var_90; [L157] SORT_1 var_91 = ~var_91_arg_0; [L158] SORT_1 var_92_arg_0 = var_90; [L159] SORT_1 var_92 = ~var_92_arg_0; [L160] SORT_1 var_93_arg_0 = var_91; [L161] SORT_1 var_93_arg_1 = var_92; [L162] SORT_1 var_93 = var_93_arg_0 | var_93_arg_1; [L163] var_93 = var_93 & mask_SORT_1 [L164] SORT_1 constr_94_arg_0 = var_93; VAL [constr_87_arg_0=7, constr_94_arg_0=1, init_77_arg_1=0, input_2=1, input_3=3, input_4=253, mask_SORT_1=1, mask_SORT_101=16383, mask_SORT_105=3, mask_SORT_11=65535, mask_SORT_12=255, mask_SORT_154=127, mask_SORT_20=4294967295, mask_SORT_23=4294967295, mask_SORT_26=4294967295, mask_SORT_29=4294967295, mask_SORT_32=4294967295, mask_SORT_35=4294967295, mask_SORT_38=4294967295, mask_SORT_41=4294967295, mask_SORT_44=4294967295, mask_SORT_47=4294967295, mask_SORT_50=4294967295, mask_SORT_53=4294967295, mask_SORT_56=4294967295, mask_SORT_59=4294967295, mask_SORT_62=4294967295, mask_SORT_72=7, mask_SORT_9=4294967295, mask_SORT_96=15, msb_SORT_1=1, msb_SORT_101=8192, msb_SORT_105=2, msb_SORT_11=32768, msb_SORT_12=128, msb_SORT_154=64, msb_SORT_20=2147483648, msb_SORT_23=65536, msb_SORT_26=131072, msb_SORT_29=262144, msb_SORT_32=524288, msb_SORT_35=1048576, msb_SORT_38=2097152, msb_SORT_41=4194304, msb_SORT_44=8388608, msb_SORT_47=16777216, msb_SORT_50=33554432, msb_SORT_53=67108864, msb_SORT_56=134217728, msb_SORT_59=268435456, msb_SORT_62=536870912, msb_SORT_72=4, msb_SORT_9=1073741824, msb_SORT_96=8, state_100=0, state_17=0, state_5=12, state_76=0, state_97=6, var_10=0, var_106=1, var_112=127, var_119=64, var_121=1, var_123=127, var_126=200, var_13=0, var_131=4, var_134=6, var_138=9, var_14=200, var_155=64, var_166=0, var_169=0, var_7=0, var_73=5, var_75=0, var_8=1, var_84=2, var_84_arg_0=12, var_85=7, var_85_arg_0=2, var_86=7, var_86_arg_0=12, var_86_arg_1=7, var_88=1, var_88_arg_0=1, var_89=1, var_89_arg_0=0, var_89_arg_1=1, var_90=253, var_90_arg_0=253, var_90_arg_1=1, var_91=255, var_91_arg_0=253, var_92=255, var_92_arg_0=253, var_93=1, var_93_arg_0=255, var_93_arg_1=255] [L165] CALL assume_abort_if_not(constr_94_arg_0) VAL [\old(cond)=1] [L21] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L165] RET assume_abort_if_not(constr_94_arg_0) VAL [constr_87_arg_0=7, constr_94_arg_0=1, init_77_arg_1=0, input_2=1, input_3=3, input_4=253, mask_SORT_1=1, mask_SORT_101=16383, mask_SORT_105=3, mask_SORT_11=65535, mask_SORT_12=255, mask_SORT_154=127, mask_SORT_20=4294967295, mask_SORT_23=4294967295, mask_SORT_26=4294967295, mask_SORT_29=4294967295, mask_SORT_32=4294967295, mask_SORT_35=4294967295, mask_SORT_38=4294967295, mask_SORT_41=4294967295, mask_SORT_44=4294967295, mask_SORT_47=4294967295, mask_SORT_50=4294967295, mask_SORT_53=4294967295, mask_SORT_56=4294967295, mask_SORT_59=4294967295, mask_SORT_62=4294967295, mask_SORT_72=7, mask_SORT_9=4294967295, mask_SORT_96=15, msb_SORT_1=1, msb_SORT_101=8192, msb_SORT_105=2, msb_SORT_11=32768, msb_SORT_12=128, msb_SORT_154=64, msb_SORT_20=2147483648, msb_SORT_23=65536, msb_SORT_26=131072, msb_SORT_29=262144, msb_SORT_32=524288, msb_SORT_35=1048576, msb_SORT_38=2097152, msb_SORT_41=4194304, msb_SORT_44=8388608, msb_SORT_47=16777216, msb_SORT_50=33554432, msb_SORT_53=67108864, msb_SORT_56=134217728, msb_SORT_59=268435456, msb_SORT_62=536870912, msb_SORT_72=4, msb_SORT_9=1073741824, msb_SORT_96=8, state_100=0, state_17=0, state_5=12, state_76=0, state_97=6, var_10=0, var_106=1, var_112=127, var_119=64, var_121=1, var_123=127, var_126=200, var_13=0, var_131=4, var_134=6, var_138=9, var_14=200, var_155=64, var_166=0, var_169=0, var_7=0, var_73=5, var_75=0, var_8=1, var_84=2, var_84_arg_0=12, var_85=7, var_85_arg_0=2, var_86=7, var_86_arg_0=12, var_86_arg_1=7, var_88=1, var_88_arg_0=1, var_89=1, var_89_arg_0=0, var_89_arg_1=1, var_90=253, var_90_arg_0=253, var_90_arg_1=1, var_91=255, var_91_arg_0=253, var_92=255, var_92_arg_0=253, var_93=1, var_93_arg_0=255, var_93_arg_1=255] [L167] SORT_72 var_74_arg_0 = var_73; [L168] var_74_arg_0 = var_74_arg_0 & mask_SORT_72 [L169] SORT_11 var_74 = var_74_arg_0; [L170] SORT_11 var_78_arg_0 = var_74; [L171] SORT_11 var_78_arg_1 = state_76; [L172] SORT_1 var_78 = var_78_arg_0 < var_78_arg_1; [L173] SORT_1 var_15_arg_0 = input_3; [L174] SORT_12 var_15_arg_1 = var_14; [L175] SORT_12 var_15_arg_2 = var_13; [L176] SORT_12 var_15 = var_15_arg_0 ? var_15_arg_1 : var_15_arg_2; [L177] var_15 = var_15 & mask_SORT_12 [L178] SORT_12 var_16_arg_0 = var_13; [L179] SORT_12 var_16_arg_1 = var_15; [L180] SORT_11 var_16 = ((SORT_11)var_16_arg_0 << 8) | var_16_arg_1; [L181] SORT_11 var_18_arg_0 = var_16; [L182] SORT_11 var_18_arg_1 = state_17; [L183] SORT_11 var_18 = var_18_arg_0 - var_18_arg_1; [L184] var_18 = var_18 & mask_SORT_11 [L185] SORT_11 var_19_arg_0 = var_18; [L186] SORT_1 var_19 = var_19_arg_0 >> 15; [L187] SORT_1 var_21_arg_0 = var_19; [L188] SORT_9 var_21_arg_1 = var_10; [L189] SORT_20 var_21 = ((SORT_20)var_21_arg_0 << 31) | var_21_arg_1; [L190] var_21 = var_21 & mask_SORT_20 [L191] SORT_11 var_64_arg_0 = var_18; [L192] SORT_1 var_64 = var_64_arg_0 >> 15; [L193] SORT_11 var_61_arg_0 = var_18; [L194] SORT_1 var_61 = var_61_arg_0 >> 15; [L195] SORT_11 var_58_arg_0 = var_18; [L196] SORT_1 var_58 = var_58_arg_0 >> 15; [L197] SORT_11 var_55_arg_0 = var_18; [L198] SORT_1 var_55 = var_55_arg_0 >> 15; [L199] SORT_11 var_52_arg_0 = var_18; [L200] SORT_1 var_52 = var_52_arg_0 >> 15; [L201] SORT_11 var_49_arg_0 = var_18; [L202] SORT_1 var_49 = var_49_arg_0 >> 15; [L203] SORT_11 var_46_arg_0 = var_18; [L204] SORT_1 var_46 = var_46_arg_0 >> 15; [L205] SORT_11 var_43_arg_0 = var_18; [L206] SORT_1 var_43 = var_43_arg_0 >> 15; [L207] SORT_11 var_40_arg_0 = var_18; [L208] SORT_1 var_40 = var_40_arg_0 >> 15; [L209] SORT_11 var_37_arg_0 = var_18; [L210] SORT_1 var_37 = var_37_arg_0 >> 15; [L211] SORT_11 var_34_arg_0 = var_18; [L212] SORT_1 var_34 = var_34_arg_0 >> 15; [L213] SORT_11 var_31_arg_0 = var_18; [L214] SORT_1 var_31 = var_31_arg_0 >> 15; [L215] SORT_11 var_28_arg_0 = var_18; [L216] SORT_1 var_28 = var_28_arg_0 >> 15; [L217] SORT_11 var_25_arg_0 = var_18; [L218] SORT_1 var_25 = var_25_arg_0 >> 15; [L219] SORT_11 var_22_arg_0 = var_18; [L220] SORT_1 var_22 = var_22_arg_0 >> 15; [L221] SORT_1 var_24_arg_0 = var_22; [L222] SORT_11 var_24_arg_1 = var_18; [L223] SORT_23 var_24 = ((SORT_23)var_24_arg_0 << 16) | var_24_arg_1; [L224] var_24 = var_24 & mask_SORT_23 [L225] SORT_1 var_27_arg_0 = var_25; [L226] SORT_23 var_27_arg_1 = var_24; [L227] SORT_26 var_27 = ((SORT_26)var_27_arg_0 << 17) | var_27_arg_1; [L228] var_27 = var_27 & mask_SORT_26 [L229] SORT_1 var_30_arg_0 = var_28; [L230] SORT_26 var_30_arg_1 = var_27; [L231] SORT_29 var_30 = ((SORT_29)var_30_arg_0 << 18) | var_30_arg_1; [L232] var_30 = var_30 & mask_SORT_29 [L233] SORT_1 var_33_arg_0 = var_31; [L234] SORT_29 var_33_arg_1 = var_30; [L235] SORT_32 var_33 = ((SORT_32)var_33_arg_0 << 19) | var_33_arg_1; [L236] var_33 = var_33 & mask_SORT_32 [L237] SORT_1 var_36_arg_0 = var_34; [L238] SORT_32 var_36_arg_1 = var_33; [L239] SORT_35 var_36 = ((SORT_35)var_36_arg_0 << 20) | var_36_arg_1; [L240] var_36 = var_36 & mask_SORT_35 [L241] SORT_1 var_39_arg_0 = var_37; [L242] SORT_35 var_39_arg_1 = var_36; [L243] SORT_38 var_39 = ((SORT_38)var_39_arg_0 << 21) | var_39_arg_1; [L244] var_39 = var_39 & mask_SORT_38 [L245] SORT_1 var_42_arg_0 = var_40; [L246] SORT_38 var_42_arg_1 = var_39; [L247] SORT_41 var_42 = ((SORT_41)var_42_arg_0 << 22) | var_42_arg_1; [L248] var_42 = var_42 & mask_SORT_41 [L249] SORT_1 var_45_arg_0 = var_43; [L250] SORT_41 var_45_arg_1 = var_42; [L251] SORT_44 var_45 = ((SORT_44)var_45_arg_0 << 23) | var_45_arg_1; [L252] var_45 = var_45 & mask_SORT_44 [L253] SORT_1 var_48_arg_0 = var_46; [L254] SORT_44 var_48_arg_1 = var_45; [L255] SORT_47 var_48 = ((SORT_47)var_48_arg_0 << 24) | var_48_arg_1; [L256] var_48 = var_48 & mask_SORT_47 [L257] SORT_1 var_51_arg_0 = var_49; [L258] SORT_47 var_51_arg_1 = var_48; [L259] SORT_50 var_51 = ((SORT_50)var_51_arg_0 << 25) | var_51_arg_1; [L260] var_51 = var_51 & mask_SORT_50 [L261] SORT_1 var_54_arg_0 = var_52; [L262] SORT_50 var_54_arg_1 = var_51; [L263] SORT_53 var_54 = ((SORT_53)var_54_arg_0 << 26) | var_54_arg_1; [L264] var_54 = var_54 & mask_SORT_53 [L265] SORT_1 var_57_arg_0 = var_55; [L266] SORT_53 var_57_arg_1 = var_54; [L267] SORT_56 var_57 = ((SORT_56)var_57_arg_0 << 27) | var_57_arg_1; [L268] var_57 = var_57 & mask_SORT_56 [L269] SORT_1 var_60_arg_0 = var_58; [L270] SORT_56 var_60_arg_1 = var_57; [L271] SORT_59 var_60 = ((SORT_59)var_60_arg_0 << 28) | var_60_arg_1; [L272] var_60 = var_60 & mask_SORT_59 [L273] SORT_1 var_63_arg_0 = var_61; [L274] SORT_59 var_63_arg_1 = var_60; [L275] SORT_62 var_63 = ((SORT_62)var_63_arg_0 << 29) | var_63_arg_1; [L276] var_63 = var_63 & mask_SORT_62 [L277] SORT_1 var_65_arg_0 = var_64; [L278] SORT_62 var_65_arg_1 = var_63; [L279] SORT_9 var_65 = ((SORT_9)var_65_arg_0 << 30) | var_65_arg_1; [L280] SORT_9 var_66_arg_0 = var_65; [L281] var_66_arg_0 = var_66_arg_0 & mask_SORT_9 [L282] SORT_20 var_66 = var_66_arg_0; [L283] SORT_20 var_67_arg_0 = var_21; [L284] SORT_20 var_67_arg_1 = var_66; [L285] SORT_1 var_67 = var_67_arg_0 <= var_67_arg_1; [L286] SORT_1 var_68_arg_0 = var_67; [L287] SORT_1 var_68_arg_1 = var_8; [L288] SORT_1 var_68_arg_2 = var_7; [L289] SORT_1 var_68 = var_68_arg_0 ? var_68_arg_1 : var_68_arg_2; [L290] SORT_1 var_69_arg_0 = input_3; [L291] SORT_1 var_69_arg_1 = var_68; [L292] SORT_1 var_69 = var_69_arg_0 ^ var_69_arg_1; [L293] SORT_1 var_70_arg_0 = var_69; [L294] SORT_1 var_70 = ~var_70_arg_0; [L295] SORT_1 var_79_arg_0 = var_78; [L296] SORT_1 var_79_arg_1 = var_70; [L297] SORT_1 var_79_arg_2 = var_8; [L298] SORT_1 var_79 = var_79_arg_0 ? var_79_arg_1 : var_79_arg_2; [L299] SORT_1 var_80_arg_0 = var_79; [L300] SORT_1 var_80 = ~var_80_arg_0; [L301] SORT_1 var_81_arg_0 = var_79; [L302] SORT_1 var_81 = ~var_81_arg_0; [L303] SORT_1 var_82_arg_0 = var_80; [L304] SORT_1 var_82_arg_1 = var_81; [L305] SORT_1 var_82 = var_82_arg_0 & var_82_arg_1; [L306] var_82 = var_82 & mask_SORT_1 [L307] SORT_1 bad_83_arg_0 = var_82; [L308] CALL __VERIFIER_assert(!(bad_83_arg_0)) [L20] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L20] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 19 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.9s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 16 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 16 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.8s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 16 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 4/4 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-25 17:55:07,981 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.safe_analog_estimation_convergence.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 4de94aaabb885b39de7c063dad9a583cbef1a5037a721fe952ddb512087f6e33 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 17:55:10,624 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:55:10,627 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:55:10,656 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:55:10,656 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:55:10,658 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:55:10,659 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:55:10,661 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:55:10,663 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:55:10,665 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:55:10,666 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:55:10,667 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:55:10,668 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:55:10,669 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:55:10,671 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:55:10,672 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:55:10,673 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:55:10,674 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:55:10,676 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:55:10,679 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:55:10,681 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:55:10,682 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:55:10,684 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:55:10,685 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:55:10,689 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:55:10,690 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:55:10,690 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:55:10,692 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:55:10,692 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:55:10,693 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:55:10,694 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:55:10,695 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:55:10,696 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:55:10,697 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:55:10,713 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:55:10,713 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:55:10,714 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:55:10,715 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:55:10,715 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:55:10,716 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:55:10,717 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:55:10,718 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-25 17:55:10,745 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:55:10,745 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:55:10,746 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:55:10,746 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:55:10,747 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:55:10,747 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:55:10,748 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:55:10,749 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:55:10,749 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:55:10,749 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:55:10,750 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:55:10,750 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:55:10,750 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:55:10,751 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:55:10,751 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 17:55:10,751 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-25 17:55:10,751 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-25 17:55:10,752 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:55:10,752 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:55:10,752 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:55:10,753 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:55:10,753 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:55:10,753 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:55:10,754 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:55:10,754 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:55:10,754 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:55:10,755 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:55:10,755 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-25 17:55:10,755 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-25 17:55:10,755 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:55:10,756 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:55:10,756 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:55:10,756 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:55:10,757 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-11-25 17:55:10,757 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4de94aaabb885b39de7c063dad9a583cbef1a5037a721fe952ddb512087f6e33 [2022-11-25 17:55:11,152 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:55:11,178 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:55:11,181 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:55:11,183 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:55:11,184 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:55:11,185 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.safe_analog_estimation_convergence.c [2022-11-25 17:55:14,504 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:55:14,869 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:55:14,869 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.safe_analog_estimation_convergence.c [2022-11-25 17:55:14,886 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/data/be9620976/0fa57368c2ae4c63a0be288d279fd8db/FLAG1a583395c [2022-11-25 17:55:14,907 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/data/be9620976/0fa57368c2ae4c63a0be288d279fd8db [2022-11-25 17:55:14,910 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:55:14,912 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:55:14,914 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:55:14,914 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:55:14,923 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:55:14,924 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:55:14" (1/1) ... [2022-11-25 17:55:14,925 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68fe20da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:55:14, skipping insertion in model container [2022-11-25 17:55:14,925 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:55:14" (1/1) ... [2022-11-25 17:55:14,934 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:55:15,000 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:55:15,192 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.safe_analog_estimation_convergence.c[1120,1133] [2022-11-25 17:55:15,366 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:55:15,380 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:55:15,395 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.safe_analog_estimation_convergence.c[1120,1133] [2022-11-25 17:55:15,570 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:55:15,595 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:55:15,596 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:55:15 WrapperNode [2022-11-25 17:55:15,596 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:55:15,598 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:55:15,599 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:55:15,599 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:55:15,608 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:55:15" (1/1) ... [2022-11-25 17:55:15,637 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:55:15" (1/1) ... [2022-11-25 17:55:15,709 INFO L138 Inliner]: procedures = 11, calls = 5, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 413 [2022-11-25 17:55:15,710 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:55:15,711 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:55:15,712 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:55:15,712 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:55:15,723 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:55:15" (1/1) ... [2022-11-25 17:55:15,723 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:55:15" (1/1) ... [2022-11-25 17:55:15,745 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:55:15" (1/1) ... [2022-11-25 17:55:15,746 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:55:15" (1/1) ... [2022-11-25 17:55:15,757 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:55:15" (1/1) ... [2022-11-25 17:55:15,774 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:55:15" (1/1) ... [2022-11-25 17:55:15,790 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:55:15" (1/1) ... [2022-11-25 17:55:15,792 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:55:15" (1/1) ... [2022-11-25 17:55:15,797 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:55:15,810 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:55:15,810 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:55:15,811 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:55:15,812 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:55:15" (1/1) ... [2022-11-25 17:55:15,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:55:15,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:55:15,855 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:55:15,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:55:15,912 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:55:15,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:55:15,913 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-25 17:55:15,913 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-25 17:55:16,175 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:55:16,178 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:55:16,905 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:55:16,914 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:55:16,914 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 17:55:16,916 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:55:16 BoogieIcfgContainer [2022-11-25 17:55:16,917 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:55:16,919 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:55:16,919 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:55:16,924 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:55:16,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:55:14" (1/3) ... [2022-11-25 17:55:16,925 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6949d2da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:55:16, skipping insertion in model container [2022-11-25 17:55:16,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:55:15" (2/3) ... [2022-11-25 17:55:16,926 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6949d2da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:55:16, skipping insertion in model container [2022-11-25 17:55:16,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:55:16" (3/3) ... [2022-11-25 17:55:16,928 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.safe_analog_estimation_convergence.c [2022-11-25 17:55:16,951 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:55:16,952 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 17:55:17,010 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:55:17,019 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;@5da1bbc4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:55:17,020 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 17:55:17,025 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 15 states have internal predecessors, (19), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 17:55:17,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-25 17:55:17,038 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:55:17,039 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:55:17,040 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:55:17,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:55:17,049 INFO L85 PathProgramCache]: Analyzing trace with hash -639607165, now seen corresponding path program 1 times [2022-11-25 17:55:17,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:55:17,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [441898064] [2022-11-25 17:55:17,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:55:17,068 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:55:17,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:55:17,074 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 17:55:17,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-25 17:55:17,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:17,351 INFO L263 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-25 17:55:17,359 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:55:17,388 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 17:55:17,388 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:55:17,389 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 17:55:17,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [441898064] [2022-11-25 17:55:17,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [441898064] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:55:17,391 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:55:17,391 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 17:55:17,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029864725] [2022-11-25 17:55:17,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:55:17,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 17:55:17,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 17:55:17,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 17:55:17,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 17:55:17,436 INFO L87 Difference]: Start difference. First operand has 19 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 15 states have internal predecessors, (19), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 17:55:17,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:55:17,459 INFO L93 Difference]: Finished difference Result 32 states and 43 transitions. [2022-11-25 17:55:17,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 17:55:17,461 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 17 [2022-11-25 17:55:17,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:55:17,469 INFO L225 Difference]: With dead ends: 32 [2022-11-25 17:55:17,469 INFO L226 Difference]: Without dead ends: 15 [2022-11-25 17:55:17,473 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 17:55:17,477 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:55:17,478 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:55:17,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-11-25 17:55:17,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-11-25 17:55:17,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 17:55:17,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2022-11-25 17:55:17,541 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 17 [2022-11-25 17:55:17,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:55:17,542 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2022-11-25 17:55:17,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 17:55:17,544 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2022-11-25 17:55:17,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-25 17:55:17,546 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:55:17,546 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:55:17,569 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-25 17:55:17,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:55:17,760 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:55:17,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:55:17,761 INFO L85 PathProgramCache]: Analyzing trace with hash -324183425, now seen corresponding path program 1 times [2022-11-25 17:55:17,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:55:17,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [892217373] [2022-11-25 17:55:17,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:55:17,762 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:55:17,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:55:17,764 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 17:55:17,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-25 17:55:18,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:18,020 INFO L263 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-25 17:55:18,024 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:55:18,400 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-25 17:55:18,401 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:55:18,401 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 17:55:18,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [892217373] [2022-11-25 17:55:18,402 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [892217373] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:55:18,403 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:55:18,403 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 17:55:18,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110104363] [2022-11-25 17:55:18,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:55:18,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 17:55:18,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 17:55:18,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 17:55:18,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 17:55:18,413 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 17:55:18,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:55:18,640 INFO L93 Difference]: Finished difference Result 29 states and 34 transitions. [2022-11-25 17:55:18,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 17:55:18,642 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2022-11-25 17:55:18,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:55:18,643 INFO L225 Difference]: With dead ends: 29 [2022-11-25 17:55:18,643 INFO L226 Difference]: Without dead ends: 27 [2022-11-25 17:55:18,644 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:55:18,645 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 6 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 17:55:18,645 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 50 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 17:55:18,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-11-25 17:55:18,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 21. [2022-11-25 17:55:18,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 15 states have internal predecessors, (16), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-25 17:55:18,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2022-11-25 17:55:18,663 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 17 [2022-11-25 17:55:18,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:55:18,664 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2022-11-25 17:55:18,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 17:55:18,670 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2022-11-25 17:55:18,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-25 17:55:18,671 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:55:18,672 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-25 17:55:18,692 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-25 17:55:18,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:55:18,892 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:55:18,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:55:18,893 INFO L85 PathProgramCache]: Analyzing trace with hash 322101155, now seen corresponding path program 1 times [2022-11-25 17:55:18,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:55:18,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [631871357] [2022-11-25 17:55:18,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:55:18,894 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:55:18,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:55:18,896 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 17:55:18,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-25 17:55:19,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:19,350 INFO L263 TraceCheckSpWp]: Trace formula consists of 528 conjuncts, 30 conjunts are in the unsatisfiable core [2022-11-25 17:55:19,357 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:55:19,929 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-25 17:55:19,929 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:55:20,210 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 17:55:20,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [631871357] [2022-11-25 17:55:20,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [631871357] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:55:20,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1585075099] [2022-11-25 17:55:20,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:55:20,211 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-25 17:55:20,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/cvc4 [2022-11-25 17:55:20,214 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-25 17:55:20,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2022-11-25 17:55:20,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:20,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 528 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-25 17:55:20,908 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:55:21,250 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-25 17:55:21,251 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:55:21,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1585075099] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:55:21,435 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 17:55:21,435 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2022-11-25 17:55:21,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354159647] [2022-11-25 17:55:21,435 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 17:55:21,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:55:21,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 17:55:21,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:55:21,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-25 17:55:21,437 INFO L87 Difference]: Start difference. First operand 21 states and 24 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 17:55:21,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:55:21,894 INFO L93 Difference]: Finished difference Result 36 states and 43 transitions. [2022-11-25 17:55:21,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 17:55:21,896 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 32 [2022-11-25 17:55:21,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:55:21,897 INFO L225 Difference]: With dead ends: 36 [2022-11-25 17:55:21,897 INFO L226 Difference]: Without dead ends: 34 [2022-11-25 17:55:21,898 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 64 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-11-25 17:55:21,899 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 10 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-25 17:55:21,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 49 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-25 17:55:21,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-11-25 17:55:21,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 28. [2022-11-25 17:55:21,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 20 states have (on average 1.05) internal successors, (21), 20 states have internal predecessors, (21), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-25 17:55:21,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 33 transitions. [2022-11-25 17:55:21,920 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 33 transitions. Word has length 32 [2022-11-25 17:55:21,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:55:21,921 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 33 transitions. [2022-11-25 17:55:21,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 17:55:21,923 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2022-11-25 17:55:21,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-11-25 17:55:21,925 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:55:21,926 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1] [2022-11-25 17:55:21,948 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-25 17:55:22,142 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2022-11-25 17:55:22,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/cvc4 --incremental --print-success --lang smt [2022-11-25 17:55:22,339 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:55:22,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:55:22,340 INFO L85 PathProgramCache]: Analyzing trace with hash -220860929, now seen corresponding path program 2 times [2022-11-25 17:55:22,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:55:22,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1500745177] [2022-11-25 17:55:22,341 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 17:55:22,342 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:55:22,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:55:22,343 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 17:55:22,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-25 17:55:22,874 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 17:55:22,874 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:55:22,901 INFO L263 TraceCheckSpWp]: Trace formula consists of 814 conjuncts, 37 conjunts are in the unsatisfiable core [2022-11-25 17:55:22,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:55:23,502 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-25 17:55:23,504 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:55:23,748 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 17:55:23,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1500745177] [2022-11-25 17:55:23,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1500745177] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:55:23,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [783623184] [2022-11-25 17:55:23,749 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 17:55:23,749 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-25 17:55:23,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/cvc4 [2022-11-25 17:55:23,751 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-25 17:55:23,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2022-11-25 17:55:24,728 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 17:55:24,728 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:55:24,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 814 conjuncts, 40 conjunts are in the unsatisfiable core [2022-11-25 17:55:24,757 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:55:25,271 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-25 17:55:25,272 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:55:25,426 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [783623184] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:55:25,426 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 17:55:25,427 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2022-11-25 17:55:25,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165725071] [2022-11-25 17:55:25,427 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 17:55:25,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 17:55:25,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 17:55:25,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 17:55:25,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-25 17:55:25,430 INFO L87 Difference]: Start difference. First operand 28 states and 33 transitions. Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-25 17:55:26,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:55:26,149 INFO L93 Difference]: Finished difference Result 43 states and 52 transitions. [2022-11-25 17:55:26,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 17:55:26,151 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 47 [2022-11-25 17:55:26,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:55:26,152 INFO L225 Difference]: With dead ends: 43 [2022-11-25 17:55:26,152 INFO L226 Difference]: Without dead ends: 41 [2022-11-25 17:55:26,153 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 93 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2022-11-25 17:55:26,154 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 14 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-25 17:55:26,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 88 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-25 17:55:26,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-11-25 17:55:26,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 35. [2022-11-25 17:55:26,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 25 states have (on average 1.04) internal successors, (26), 25 states have internal predecessors, (26), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-25 17:55:26,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 42 transitions. [2022-11-25 17:55:26,176 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 42 transitions. Word has length 47 [2022-11-25 17:55:26,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:55:26,180 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 42 transitions. [2022-11-25 17:55:26,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-25 17:55:26,181 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 42 transitions. [2022-11-25 17:55:26,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-11-25 17:55:26,185 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:55:26,186 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1] [2022-11-25 17:55:26,206 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2022-11-25 17:55:26,413 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2022-11-25 17:55:26,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/cvc4 --incremental --print-success --lang smt [2022-11-25 17:55:26,607 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:55:26,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:55:26,607 INFO L85 PathProgramCache]: Analyzing trace with hash -2090804189, now seen corresponding path program 3 times [2022-11-25 17:55:26,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:55:26,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1559382476] [2022-11-25 17:55:26,609 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-25 17:55:26,610 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:55:26,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:55:26,611 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 17:55:26,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-25 17:55:27,399 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-11-25 17:55:27,399 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:55:27,445 INFO L263 TraceCheckSpWp]: Trace formula consists of 1077 conjuncts, 45 conjunts are in the unsatisfiable core [2022-11-25 17:55:27,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:55:28,347 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-25 17:55:28,347 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:55:28,603 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 17:55:28,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1559382476] [2022-11-25 17:55:28,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1559382476] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:55:28,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1889076714] [2022-11-25 17:55:28,604 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-25 17:55:28,605 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-25 17:55:28,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/cvc4 [2022-11-25 17:55:28,606 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-25 17:55:28,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2022-11-25 17:55:29,796 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-11-25 17:55:29,797 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:55:29,840 INFO L263 TraceCheckSpWp]: Trace formula consists of 1077 conjuncts, 51 conjunts are in the unsatisfiable core [2022-11-25 17:55:29,847 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:55:30,593 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-25 17:55:30,593 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:55:30,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1889076714] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:55:30,758 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 17:55:30,758 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2022-11-25 17:55:30,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297196453] [2022-11-25 17:55:30,759 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 17:55:30,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 17:55:30,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 17:55:30,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 17:55:30,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-11-25 17:55:30,765 INFO L87 Difference]: Start difference. First operand 35 states and 42 transitions. Second operand has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 4 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2022-11-25 17:55:31,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:55:31,646 INFO L93 Difference]: Finished difference Result 50 states and 61 transitions. [2022-11-25 17:55:31,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 17:55:31,646 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 4 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 62 [2022-11-25 17:55:31,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:55:31,648 INFO L225 Difference]: With dead ends: 50 [2022-11-25 17:55:31,648 INFO L226 Difference]: Without dead ends: 48 [2022-11-25 17:55:31,648 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 122 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2022-11-25 17:55:31,649 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 18 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-25 17:55:31,650 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 118 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-25 17:55:31,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2022-11-25 17:55:31,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 42. [2022-11-25 17:55:31,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 30 states have (on average 1.0333333333333334) internal successors, (31), 30 states have internal predecessors, (31), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2022-11-25 17:55:31,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 51 transitions. [2022-11-25 17:55:31,665 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 51 transitions. Word has length 62 [2022-11-25 17:55:31,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:55:31,666 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 51 transitions. [2022-11-25 17:55:31,666 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 4 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2022-11-25 17:55:31,667 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 51 transitions. [2022-11-25 17:55:31,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-11-25 17:55:31,668 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:55:31,668 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 5, 5, 5, 5, 4, 4, 1, 1, 1, 1] [2022-11-25 17:55:31,679 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/cvc4 --incremental --print-success --lang smt (9)] Ended with exit code 0 [2022-11-25 17:55:31,889 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2022-11-25 17:55:32,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/cvc4 --incremental --print-success --lang smt,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:55:32,075 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:55:32,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:55:32,076 INFO L85 PathProgramCache]: Analyzing trace with hash -497065601, now seen corresponding path program 4 times [2022-11-25 17:55:32,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:55:32,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [98429154] [2022-11-25 17:55:32,078 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-25 17:55:32,078 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:55:32,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:55:32,079 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 17:55:32,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-25 17:55:32,690 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-25 17:55:32,690 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:55:32,737 INFO L263 TraceCheckSpWp]: Trace formula consists of 1386 conjuncts, 52 conjunts are in the unsatisfiable core [2022-11-25 17:55:32,744 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:55:33,803 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-25 17:55:33,803 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:55:34,049 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 17:55:34,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [98429154] [2022-11-25 17:55:34,049 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [98429154] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:55:34,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2130021892] [2022-11-25 17:55:34,049 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-25 17:55:34,050 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-25 17:55:34,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/cvc4 [2022-11-25 17:55:34,051 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-25 17:55:34,053 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2022-11-25 17:55:35,293 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-25 17:55:35,294 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:55:35,365 INFO L263 TraceCheckSpWp]: Trace formula consists of 1386 conjuncts, 54 conjunts are in the unsatisfiable core [2022-11-25 17:55:35,372 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:55:36,305 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-25 17:55:36,305 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:55:36,503 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2130021892] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:55:36,503 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 17:55:36,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2022-11-25 17:55:36,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458248276] [2022-11-25 17:55:36,504 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 17:55:36,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 17:55:36,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 17:55:36,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 17:55:36,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-11-25 17:55:36,509 INFO L87 Difference]: Start difference. First operand 42 states and 51 transitions. Second operand has 8 states, 8 states have (on average 3.75) internal successors, (30), 8 states have internal predecessors, (30), 5 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2022-11-25 17:55:37,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:55:37,710 INFO L93 Difference]: Finished difference Result 57 states and 70 transitions. [2022-11-25 17:55:37,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 17:55:37,715 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.75) internal successors, (30), 8 states have internal predecessors, (30), 5 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) Word has length 77 [2022-11-25 17:55:37,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:55:37,716 INFO L225 Difference]: With dead ends: 57 [2022-11-25 17:55:37,716 INFO L226 Difference]: Without dead ends: 55 [2022-11-25 17:55:37,717 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 151 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2022-11-25 17:55:37,718 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 22 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:55:37,718 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 152 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-25 17:55:37,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2022-11-25 17:55:37,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 49. [2022-11-25 17:55:37,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 35 states have (on average 1.0285714285714285) internal successors, (36), 35 states have internal predecessors, (36), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-11-25 17:55:37,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 60 transitions. [2022-11-25 17:55:37,733 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 60 transitions. Word has length 77 [2022-11-25 17:55:37,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:55:37,734 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 60 transitions. [2022-11-25 17:55:37,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.75) internal successors, (30), 8 states have internal predecessors, (30), 5 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2022-11-25 17:55:37,735 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 60 transitions. [2022-11-25 17:55:37,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-11-25 17:55:37,736 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:55:37,736 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 5, 5, 1, 1, 1, 1] [2022-11-25 17:55:37,746 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2022-11-25 17:55:37,955 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-25 17:55:38,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/cvc4 --incremental --print-success --lang smt,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:55:38,139 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:55:38,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:55:38,139 INFO L85 PathProgramCache]: Analyzing trace with hash -1068369757, now seen corresponding path program 5 times [2022-11-25 17:55:38,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:55:38,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1855159697] [2022-11-25 17:55:38,141 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-25 17:55:38,141 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:55:38,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:55:38,143 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 17:55:38,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-11-25 17:55:39,201 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2022-11-25 17:55:39,201 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:55:39,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 1672 conjuncts, 59 conjunts are in the unsatisfiable core [2022-11-25 17:55:39,268 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:55:40,522 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2022-11-25 17:55:40,522 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:55:40,772 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 17:55:40,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1855159697] [2022-11-25 17:55:40,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1855159697] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:55:40,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1318993105] [2022-11-25 17:55:40,772 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-25 17:55:40,772 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-25 17:55:40,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/cvc4 [2022-11-25 17:55:40,774 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-25 17:55:40,775 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2022-11-25 17:55:44,755 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2022-11-25 17:55:44,755 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:55:44,828 INFO L263 TraceCheckSpWp]: Trace formula consists of 1672 conjuncts, 64 conjunts are in the unsatisfiable core [2022-11-25 17:55:44,835 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:55:45,903 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2022-11-25 17:55:45,903 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:55:46,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1318993105] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:55:46,069 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 17:55:46,069 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2022-11-25 17:55:46,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927525364] [2022-11-25 17:55:46,070 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 17:55:46,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 17:55:46,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 17:55:46,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 17:55:46,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-11-25 17:55:46,072 INFO L87 Difference]: Start difference. First operand 49 states and 60 transitions. Second operand has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 6 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2022-11-25 17:55:47,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:55:47,681 INFO L93 Difference]: Finished difference Result 64 states and 79 transitions. [2022-11-25 17:55:47,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 17:55:47,681 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 6 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) Word has length 92 [2022-11-25 17:55:47,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:55:47,683 INFO L225 Difference]: With dead ends: 64 [2022-11-25 17:55:47,683 INFO L226 Difference]: Without dead ends: 62 [2022-11-25 17:55:47,684 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 180 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2022-11-25 17:55:47,685 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 26 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-25 17:55:47,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 190 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-25 17:55:47,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-11-25 17:55:47,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 56. [2022-11-25 17:55:47,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 40 states have (on average 1.025) internal successors, (41), 40 states have internal predecessors, (41), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2022-11-25 17:55:47,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 69 transitions. [2022-11-25 17:55:47,705 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 69 transitions. Word has length 92 [2022-11-25 17:55:47,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:55:47,706 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 69 transitions. [2022-11-25 17:55:47,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 6 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2022-11-25 17:55:47,706 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 69 transitions. [2022-11-25 17:55:47,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-11-25 17:55:47,708 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:55:47,708 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 7, 7, 7, 7, 7, 7, 7, 6, 6, 1, 1, 1, 1] [2022-11-25 17:55:47,747 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-11-25 17:55:47,940 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2022-11-25 17:55:48,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/cvc4 --incremental --print-success --lang smt [2022-11-25 17:55:48,131 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:55:48,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:55:48,131 INFO L85 PathProgramCache]: Analyzing trace with hash -1031686913, now seen corresponding path program 6 times [2022-11-25 17:55:48,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:55:48,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1288800794] [2022-11-25 17:55:48,132 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-25 17:55:48,132 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:55:48,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:55:48,133 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 17:55:48,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-11-25 17:55:49,510 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2022-11-25 17:55:49,511 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:55:49,581 INFO L263 TraceCheckSpWp]: Trace formula consists of 1935 conjuncts, 394 conjunts are in the unsatisfiable core [2022-11-25 17:55:49,601 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:56:12,124 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse2 ((_ zero_extend 24) |c_ULTIMATE.start_main_~mask_SORT_1~0#1|)) (.cse0 ((_ zero_extend 16) |c_ULTIMATE.start_main_~mask_SORT_11~0#1|))) (and (= ((_ extract 15 0) (bvand .cse0 ((_ zero_extend 16) ((_ extract 15 0) (let ((.cse1 ((_ zero_extend 16) ((_ zero_extend 8) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) |c_ULTIMATE.start_main_~var_8~0#1|))))))) (bvadd .cse1 ((_ zero_extend 16) ((_ extract 15 0) (bvand .cse0 ((_ zero_extend 16) ((_ extract 15 0) (bvadd ((_ zero_extend 16) ((_ extract 15 0) (bvand .cse0 ((_ zero_extend 16) ((_ extract 15 0) (bvadd ((_ zero_extend 16) ((_ extract 15 0) (bvand .cse0 ((_ zero_extend 16) ((_ extract 15 0) (bvadd ((_ zero_extend 16) ((_ extract 15 0) (bvand .cse0 ((_ zero_extend 16) ((_ extract 15 0) .cse1))))) .cse1)))))) .cse1)))))) .cse1)))))))))))) |c_ULTIMATE.start_main_~state_76~0#1|) (= (_ bv64 16) |c_ULTIMATE.start_main_~var_119~0#1|) (exists ((|v_ULTIMATE.start_main_#t~nondet7#1_5| (_ BitVec 8))) (= |c_ULTIMATE.start_main_~input_4~0#1| ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) |v_ULTIMATE.start_main_#t~nondet7#1_5|))))) (= |c_ULTIMATE.start_main_~mask_SORT_105~0#1| (_ bv3 8)) (let ((.cse13 ((_ zero_extend 24) |c_ULTIMATE.start_main_~mask_SORT_12~0#1|))) (let ((.cse7 ((_ sign_extend 24) ((_ extract 7 0) (bvand .cse13 ((_ zero_extend 24) |c_ULTIMATE.start_main_~var_112~0#1|)))))) (let ((.cse8 (bvmul .cse7 ((_ sign_extend 16) ((_ extract 15 0) (bvand .cse0 ((_ zero_extend 16) ((_ extract 15 0) ((_ zero_extend 16) |c_ULTIMATE.start_main_~var_119~0#1|)))))))) (.cse5 ((_ sign_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |c_ULTIMATE.start_main_~mask_SORT_105~0#1|) ((_ zero_extend 24) |c_ULTIMATE.start_main_~var_106~0#1|))))) (.cse6 (bvshl ((_ zero_extend 16) ((_ zero_extend 8) |c_ULTIMATE.start_main_~var_13~0#1|)) (_ bv8 32))) (.cse14 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |c_ULTIMATE.start_main_~var_155~0#1|) ((_ zero_extend 24) |c_ULTIMATE.start_main_~mask_SORT_154~0#1|)))))) (or (exists ((|v_ULTIMATE.start_main_~var_156_arg_0~0#1_5| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_156_arg_0~0#1_4| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_16_arg_1~0#1_13| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_16_arg_1~0#1_14| (_ BitVec 8))) (= |c_ULTIMATE.start_main_~state_17~0#1| ((_ extract 15 0) ((_ zero_extend 16) ((_ extract 15 0) (bvlshr (bvadd (bvmul ((_ sign_extend 16) ((_ extract 15 0) (bvand .cse0 ((_ zero_extend 16) ((_ extract 15 0) ((_ zero_extend 16) ((_ extract 15 0) (bvlshr (bvadd (let ((.cse4 (bvand |c_ULTIMATE.start_main_~mask_SORT_26~0#1| (bvmul .cse5 ((_ sign_extend 16) ((_ extract 15 0) (bvand .cse0 ((_ zero_extend 16) ((_ extract 15 0) (bvor .cse6 ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_16_arg_1~0#1_14|))))))))))) (let ((.cse3 ((_ zero_extend 24) ((_ extract 7 0) (bvlshr .cse4 (_ bv17 32)))))) (bvor (bvand (bvor (bvand (bvor (bvshl .cse3 (_ bv20 32)) (bvand (bvor (bvand |c_ULTIMATE.start_main_~mask_SORT_29~0#1| (bvor (bvshl .cse3 (_ bv18 32)) .cse4)) (bvshl .cse3 (_ bv19 32))) |c_ULTIMATE.start_main_~mask_SORT_32~0#1|)) |c_ULTIMATE.start_main_~mask_SORT_35~0#1|) (bvshl .cse3 (_ bv21 32))) |c_ULTIMATE.start_main_~mask_SORT_38~0#1|) (bvshl .cse3 (_ bv22 32))))) (bvmul .cse7 ((_ sign_extend 16) ((_ extract 15 0) (bvand ((_ zero_extend 16) ((_ extract 15 0) ((_ zero_extend 16) ((_ extract 15 0) (bvlshr (bvadd ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_156_arg_0~0#1_4|) .cse8 (let ((.cse10 (bvand |c_ULTIMATE.start_main_~mask_SORT_26~0#1| (bvmul .cse5 ((_ sign_extend 16) ((_ extract 15 0) (bvand .cse0 ((_ zero_extend 16) ((_ extract 15 0) (bvor ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_16_arg_1~0#1_13|) .cse6)))))))))) (let ((.cse9 ((_ zero_extend 24) ((_ extract 7 0) (bvlshr .cse10 (_ bv17 32)))))) (bvor (bvand (bvor (bvand (bvor (bvshl .cse9 (_ bv20 32)) (bvand (bvor (bvand (bvor (bvshl .cse9 (_ bv18 32)) .cse10) |c_ULTIMATE.start_main_~mask_SORT_29~0#1|) (bvshl .cse9 (_ bv19 32))) |c_ULTIMATE.start_main_~mask_SORT_32~0#1|)) |c_ULTIMATE.start_main_~mask_SORT_35~0#1|) (bvshl .cse9 (_ bv21 32))) |c_ULTIMATE.start_main_~mask_SORT_38~0#1|) (bvshl .cse9 (_ bv22 32)))))) (_ bv7 32)))))) .cse0)))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_156_arg_0~0#1_5|)) (_ bv7 32))))))))) .cse7) (let ((.cse12 (bvand |c_ULTIMATE.start_main_~mask_SORT_26~0#1| (bvmul .cse5 ((_ sign_extend 16) ((_ extract 15 0) (bvand .cse0 ((_ zero_extend 16) ((_ extract 15 0) (bvor .cse6 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse13 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |c_ULTIMATE.start_main_~var_14~0#1|)))))))))))))))) (let ((.cse11 ((_ zero_extend 24) ((_ extract 7 0) (bvlshr .cse12 (_ bv17 32)))))) (bvor (bvand |c_ULTIMATE.start_main_~mask_SORT_38~0#1| (bvor (bvand |c_ULTIMATE.start_main_~mask_SORT_35~0#1| (bvor (bvshl .cse11 (_ bv20 32)) (bvand (bvor (bvand (bvor (bvshl .cse11 (_ bv18 32)) .cse12) |c_ULTIMATE.start_main_~mask_SORT_29~0#1|) (bvshl .cse11 (_ bv19 32))) |c_ULTIMATE.start_main_~mask_SORT_32~0#1|))) (bvshl .cse11 (_ bv21 32)))) (bvshl .cse11 (_ bv22 32))))) .cse14) (_ bv7 32))))))) (exists ((|v_ULTIMATE.start_main_~var_156_arg_0~0#1_5| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_156_arg_0~0#1_4| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_16_arg_1~0#1_13| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_16_arg_1~0#1_14| (_ BitVec 8))) (= |c_ULTIMATE.start_main_~state_17~0#1| ((_ extract 15 0) ((_ zero_extend 16) ((_ extract 15 0) (bvlshr (bvadd (bvmul ((_ sign_extend 16) ((_ extract 15 0) (bvand .cse0 ((_ zero_extend 16) ((_ extract 15 0) ((_ zero_extend 16) ((_ extract 15 0) (bvlshr (bvadd (let ((.cse16 (bvand |c_ULTIMATE.start_main_~mask_SORT_26~0#1| (bvmul .cse5 ((_ sign_extend 16) ((_ extract 15 0) (bvand .cse0 ((_ zero_extend 16) ((_ extract 15 0) (bvor .cse6 ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_16_arg_1~0#1_14|))))))))))) (let ((.cse15 ((_ zero_extend 24) ((_ extract 7 0) (bvlshr .cse16 (_ bv17 32)))))) (bvor (bvand (bvor (bvand (bvor (bvshl .cse15 (_ bv20 32)) (bvand (bvor (bvand |c_ULTIMATE.start_main_~mask_SORT_29~0#1| (bvor (bvshl .cse15 (_ bv18 32)) .cse16)) (bvshl .cse15 (_ bv19 32))) |c_ULTIMATE.start_main_~mask_SORT_32~0#1|)) |c_ULTIMATE.start_main_~mask_SORT_35~0#1|) (bvshl .cse15 (_ bv21 32))) |c_ULTIMATE.start_main_~mask_SORT_38~0#1|) (bvshl .cse15 (_ bv22 32))))) (bvmul .cse7 ((_ sign_extend 16) ((_ extract 15 0) (bvand ((_ zero_extend 16) ((_ extract 15 0) ((_ zero_extend 16) ((_ extract 15 0) (bvlshr (bvadd ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_156_arg_0~0#1_4|) .cse8 (let ((.cse18 (bvand |c_ULTIMATE.start_main_~mask_SORT_26~0#1| (bvmul .cse5 ((_ sign_extend 16) ((_ extract 15 0) (bvand .cse0 ((_ zero_extend 16) ((_ extract 15 0) (bvor ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_16_arg_1~0#1_13|) .cse6)))))))))) (let ((.cse17 ((_ zero_extend 24) ((_ extract 7 0) (bvlshr .cse18 (_ bv17 32)))))) (bvor (bvand (bvor (bvand (bvor (bvshl .cse17 (_ bv20 32)) (bvand (bvor (bvand (bvor (bvshl .cse17 (_ bv18 32)) .cse18) |c_ULTIMATE.start_main_~mask_SORT_29~0#1|) (bvshl .cse17 (_ bv19 32))) |c_ULTIMATE.start_main_~mask_SORT_32~0#1|)) |c_ULTIMATE.start_main_~mask_SORT_35~0#1|) (bvshl .cse17 (_ bv21 32))) |c_ULTIMATE.start_main_~mask_SORT_38~0#1|) (bvshl .cse17 (_ bv22 32)))))) (_ bv7 32)))))) .cse0)))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_156_arg_0~0#1_5|)) (_ bv7 32))))))))) .cse7) (let ((.cse20 (bvand |c_ULTIMATE.start_main_~mask_SORT_26~0#1| (bvmul .cse5 ((_ sign_extend 16) ((_ extract 15 0) (bvand .cse0 ((_ zero_extend 16) ((_ extract 15 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |c_ULTIMATE.start_main_~var_13~0#1|))) .cse13))) .cse6)))))))))) (let ((.cse19 ((_ zero_extend 24) ((_ extract 7 0) (bvlshr .cse20 (_ bv17 32)))))) (bvor (bvshl .cse19 (_ bv22 32)) (bvand (bvor (bvshl .cse19 (_ bv21 32)) (bvand |c_ULTIMATE.start_main_~mask_SORT_35~0#1| (bvor (bvand (bvor (bvshl .cse19 (_ bv19 32)) (bvand (bvor (bvshl .cse19 (_ bv18 32)) .cse20) |c_ULTIMATE.start_main_~mask_SORT_29~0#1|)) |c_ULTIMATE.start_main_~mask_SORT_32~0#1|) (bvshl .cse19 (_ bv20 32))))) |c_ULTIMATE.start_main_~mask_SORT_38~0#1|)))) .cse14) (_ bv7 32))))))))))) (= (_ bv2147483647 32) |c_ULTIMATE.start_main_~mask_SORT_9~0#1|) (= (_ bv1048575 32) |c_ULTIMATE.start_main_~mask_SORT_32~0#1|) (= (_ bv4194303 32) |c_ULTIMATE.start_main_~mask_SORT_38~0#1|) (= (_ bv127 8) |c_ULTIMATE.start_main_~mask_SORT_154~0#1|) (= |c_ULTIMATE.start_main_~var_155~0#1| (_ bv64 8)) (= (_ bv127 8) |c_ULTIMATE.start_main_~var_112~0#1|) (= (bvadd (_ bv1 8) |c_ULTIMATE.start_main_~mask_SORT_12~0#1|) (_ bv0 8)) (= (_ bv1 8) |c_ULTIMATE.start_main_~var_106~0#1|) (= (_ bv32768 16) |c_ULTIMATE.start_main_~msb_SORT_11~0#1|) (= |c_ULTIMATE.start_main_~var_10~0#1| (_ bv0 32)) (= (bvadd |c_ULTIMATE.start_main_~var_14~0#1| (_ bv56 8)) (_ bv0 8)) (= |c_ULTIMATE.start_main_~var_13~0#1| (_ bv0 8)) (= (_ bv1 8) |c_ULTIMATE.start_main_~mask_SORT_1~0#1|) (= (_ bv524287 32) |c_ULTIMATE.start_main_~mask_SORT_29~0#1|) (= |c_ULTIMATE.start_main_~msb_SORT_12~0#1| (_ bv128 8)) (= (bvadd |c_ULTIMATE.start_main_~mask_SORT_11~0#1| (_ bv1 16)) (_ bv0 16)) (= |c_ULTIMATE.start_main_~mask_SORT_26~0#1| (_ bv262143 32)) (= |c_ULTIMATE.start_main_~mask_SORT_35~0#1| (_ bv2097151 32)) (= (_ bv2 8) |c_ULTIMATE.start_main_~msb_SORT_105~0#1|) (= (bvadd |c_ULTIMATE.start_main_~mask_SORT_20~0#1| (_ bv1 32)) (_ bv0 32)) (= |c_ULTIMATE.start_main_~var_7~0#1| (_ bv0 8)) (= (_ bv1 8) |c_ULTIMATE.start_main_~var_8~0#1|))) is different from true [2022-11-25 17:56:22,302 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 17:56:22,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1288800794] [2022-11-25 17:56:22,303 WARN L319 FreeRefinementEngine]: Global settings require throwing the following exception [2022-11-25 17:56:22,323 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-11-25 17:56:22,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:56:22,504 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: line 208089 column 7: push canceled at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1458) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:658) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:239) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:258) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.push(Scriptor.java:133) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.push(DiffWrapperScript.java:90) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.push(HistoryRecordingScript.java:107) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.UndoableWrapperScript.push(UndoableWrapperScript.java:54) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:48) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.getRedundancy(SimplifyDDA.java:620) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.simplify.SimplifyDDAWithTimeout.getRedundancy(SimplifyDDAWithTimeout.java:120) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA$Simplifier.walk(SimplifyDDA.java:370) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.simplifyOnce(SimplifyDDA.java:649) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.simplify.SimplifyDDAWithTimeout.getSimplifiedTerm(SimplifyDDAWithTimeout.java:180) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:198) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:361) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:306) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp$UnifyPostprocessor.postprocess(TraceCheckSpWp.java:582) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:199) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:299) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:185) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:163) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-25 17:56:22,507 INFO L158 Benchmark]: Toolchain (without parser) took 67595.11ms. Allocated memory was 73.4MB in the beginning and 255.9MB in the end (delta: 182.5MB). Free memory was 46.7MB in the beginning and 111.9MB in the end (delta: -65.2MB). Peak memory consumption was 116.3MB. Max. memory is 16.1GB. [2022-11-25 17:56:22,507 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 73.4MB. Free memory is still 50.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:56:22,508 INFO L158 Benchmark]: CACSL2BoogieTranslator took 682.94ms. Allocated memory is still 73.4MB. Free memory was 46.5MB in the beginning and 45.6MB in the end (delta: 942.3kB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. [2022-11-25 17:56:22,508 INFO L158 Benchmark]: Boogie Procedure Inliner took 112.21ms. Allocated memory is still 73.4MB. Free memory was 45.6MB in the beginning and 41.6MB in the end (delta: 3.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 17:56:22,508 INFO L158 Benchmark]: Boogie Preprocessor took 98.03ms. Allocated memory is still 73.4MB. Free memory was 41.6MB in the beginning and 39.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:56:22,508 INFO L158 Benchmark]: RCFGBuilder took 1106.79ms. Allocated memory was 73.4MB in the beginning and 100.7MB in the end (delta: 27.3MB). Free memory was 39.0MB in the beginning and 71.4MB in the end (delta: -32.4MB). Peak memory consumption was 22.8MB. Max. memory is 16.1GB. [2022-11-25 17:56:22,509 INFO L158 Benchmark]: TraceAbstraction took 65587.36ms. Allocated memory was 100.7MB in the beginning and 255.9MB in the end (delta: 155.2MB). Free memory was 70.9MB in the beginning and 111.9MB in the end (delta: -41.0MB). Peak memory consumption was 114.3MB. Max. memory is 16.1GB. [2022-11-25 17:56:22,511 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 73.4MB. Free memory is still 50.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 682.94ms. Allocated memory is still 73.4MB. Free memory was 46.5MB in the beginning and 45.6MB in the end (delta: 942.3kB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 112.21ms. Allocated memory is still 73.4MB. Free memory was 45.6MB in the beginning and 41.6MB in the end (delta: 3.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 98.03ms. Allocated memory is still 73.4MB. Free memory was 41.6MB in the beginning and 39.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1106.79ms. Allocated memory was 73.4MB in the beginning and 100.7MB in the end (delta: 27.3MB). Free memory was 39.0MB in the beginning and 71.4MB in the end (delta: -32.4MB). Peak memory consumption was 22.8MB. Max. memory is 16.1GB. * TraceAbstraction took 65587.36ms. Allocated memory was 100.7MB in the beginning and 255.9MB in the end (delta: 155.2MB). Free memory was 70.9MB in the beginning and 111.9MB in the end (delta: -41.0MB). Peak memory consumption was 114.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: line 208089 column 7: push canceled de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: line 208089 column 7: push canceled: de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1458) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-11-25 17:56:22,730 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2022-11-25 17:56:22,813 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e18b6-2052-4ff7-9878-3089b82150db/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: line 208089 column 7: push canceled