./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p10.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796371ee-7a65-42d5-9dad-a016b6cc428d/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796371ee-7a65-42d5-9dad-a016b6cc428d/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796371ee-7a65-42d5-9dad-a016b6cc428d/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796371ee-7a65-42d5-9dad-a016b6cc428d/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796371ee-7a65-42d5-9dad-a016b6cc428d/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796371ee-7a65-42d5-9dad-a016b6cc428d/bin/uautomizer-vX5HgA9Q3a --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 5781aa0e97f21edc6279d327a58f923d207d456768643be187e6a82dd611a001 --- 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-b5237d8 [2022-11-21 17:29:16,557 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 17:29:16,560 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 17:29:16,579 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 17:29:16,579 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 17:29:16,580 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 17:29:16,582 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 17:29:16,583 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 17:29:16,585 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 17:29:16,586 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 17:29:16,587 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 17:29:16,588 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 17:29:16,588 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 17:29:16,589 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 17:29:16,590 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 17:29:16,591 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 17:29:16,592 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 17:29:16,593 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 17:29:16,595 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 17:29:16,597 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 17:29:16,598 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 17:29:16,600 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 17:29:16,602 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 17:29:16,602 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 17:29:16,606 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 17:29:16,606 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 17:29:16,607 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 17:29:16,607 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 17:29:16,608 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 17:29:16,609 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 17:29:16,609 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 17:29:16,610 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 17:29:16,611 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 17:29:16,611 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 17:29:16,612 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 17:29:16,613 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 17:29:16,613 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 17:29:16,614 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 17:29:16,614 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 17:29:16,615 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 17:29:16,616 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 17:29:16,617 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796371ee-7a65-42d5-9dad-a016b6cc428d/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-21 17:29:16,638 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 17:29:16,639 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 17:29:16,639 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 17:29:16,640 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 17:29:16,640 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 17:29:16,641 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 17:29:16,641 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 17:29:16,642 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 17:29:16,642 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 17:29:16,642 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 17:29:16,642 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 17:29:16,643 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 17:29:16,643 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 17:29:16,643 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 17:29:16,643 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 17:29:16,644 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 17:29:16,644 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 17:29:16,644 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 17:29:16,645 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 17:29:16,645 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 17:29:16,645 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 17:29:16,645 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:29:16,646 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 17:29:16,646 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 17:29:16,646 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 17:29:16,646 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 17:29:16,647 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 17:29:16,647 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 17:29:16,647 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 17:29:16,647 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 17:29:16,648 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796371ee-7a65-42d5-9dad-a016b6cc428d/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796371ee-7a65-42d5-9dad-a016b6cc428d/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5781aa0e97f21edc6279d327a58f923d207d456768643be187e6a82dd611a001 [2022-11-21 17:29:16,969 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 17:29:17,013 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 17:29:17,016 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 17:29:17,018 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 17:29:17,019 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 17:29:17,021 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796371ee-7a65-42d5-9dad-a016b6cc428d/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p10.c [2022-11-21 17:29:20,360 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 17:29:20,706 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 17:29:20,707 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796371ee-7a65-42d5-9dad-a016b6cc428d/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p10.c [2022-11-21 17:29:20,724 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796371ee-7a65-42d5-9dad-a016b6cc428d/bin/uautomizer-vX5HgA9Q3a/data/2268afaf2/967a5501656e445fb5a0b6f397ea2ee4/FLAG490fcc8f5 [2022-11-21 17:29:20,748 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796371ee-7a65-42d5-9dad-a016b6cc428d/bin/uautomizer-vX5HgA9Q3a/data/2268afaf2/967a5501656e445fb5a0b6f397ea2ee4 [2022-11-21 17:29:20,751 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 17:29:20,753 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 17:29:20,754 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 17:29:20,754 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 17:29:20,758 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 17:29:20,759 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:29:20" (1/1) ... [2022-11-21 17:29:20,761 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f0d5f36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:20, skipping insertion in model container [2022-11-21 17:29:20,761 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:29:20" (1/1) ... [2022-11-21 17:29:20,774 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 17:29:20,812 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 17:29:20,963 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_796371ee-7a65-42d5-9dad-a016b6cc428d/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p10.c[1107,1120] [2022-11-21 17:29:21,079 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:29:21,096 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 17:29:21,105 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_796371ee-7a65-42d5-9dad-a016b6cc428d/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p10.c[1107,1120] [2022-11-21 17:29:21,174 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:29:21,188 INFO L208 MainTranslator]: Completed translation [2022-11-21 17:29:21,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:21 WrapperNode [2022-11-21 17:29:21,188 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 17:29:21,190 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 17:29:21,190 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 17:29:21,190 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 17:29:21,199 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:21" (1/1) ... [2022-11-21 17:29:21,211 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:21" (1/1) ... [2022-11-21 17:29:21,256 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 435 [2022-11-21 17:29:21,256 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 17:29:21,257 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 17:29:21,257 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 17:29:21,257 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 17:29:21,270 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:21" (1/1) ... [2022-11-21 17:29:21,271 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:21" (1/1) ... [2022-11-21 17:29:21,276 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:21" (1/1) ... [2022-11-21 17:29:21,277 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:21" (1/1) ... [2022-11-21 17:29:21,297 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:21" (1/1) ... [2022-11-21 17:29:21,314 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:21" (1/1) ... [2022-11-21 17:29:21,319 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:21" (1/1) ... [2022-11-21 17:29:21,322 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:21" (1/1) ... [2022-11-21 17:29:21,327 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 17:29:21,328 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 17:29:21,329 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 17:29:21,329 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 17:29:21,330 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:21" (1/1) ... [2022-11-21 17:29:21,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:29:21,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796371ee-7a65-42d5-9dad-a016b6cc428d/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:29:21,376 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796371ee-7a65-42d5-9dad-a016b6cc428d/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 17:29:21,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796371ee-7a65-42d5-9dad-a016b6cc428d/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 17:29:21,444 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 17:29:21,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 17:29:21,678 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 17:29:21,681 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 17:29:22,675 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 17:29:22,684 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 17:29:22,684 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-21 17:29:22,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:29:22 BoogieIcfgContainer [2022-11-21 17:29:22,687 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 17:29:22,689 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 17:29:22,690 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 17:29:22,694 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 17:29:22,694 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 05:29:20" (1/3) ... [2022-11-21 17:29:22,695 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49383a52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:29:22, skipping insertion in model container [2022-11-21 17:29:22,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:21" (2/3) ... [2022-11-21 17:29:22,696 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49383a52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:29:22, skipping insertion in model container [2022-11-21 17:29:22,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:29:22" (3/3) ... [2022-11-21 17:29:22,698 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p10.c [2022-11-21 17:29:22,723 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 17:29:22,723 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-21 17:29:22,802 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 17:29:22,815 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7cf22193, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 17:29:22,816 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-21 17:29:22,822 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:29:22,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-21 17:29:22,829 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:29:22,830 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-21 17:29:22,831 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:29:22,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:29:22,839 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-21 17:29:22,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:29:22,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842284182] [2022-11-21 17:29:22,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:29:22,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:29:23,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 17:29:23,234 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 17:29:23,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 17:29:23,393 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 17:29:23,395 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-21 17:29:23,397 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-21 17:29:23,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 17:29:23,405 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-21 17:29:23,410 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 17:29:23,453 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-21 17:29:23,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 05:29:23 BoogieIcfgContainer [2022-11-21 17:29:23,474 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 17:29:23,477 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 17:29:23,477 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 17:29:23,477 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 17:29:23,478 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:29:22" (3/4) ... [2022-11-21 17:29:23,488 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-21 17:29:23,488 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 17:29:23,489 INFO L158 Benchmark]: Toolchain (without parser) took 2736.25ms. Allocated memory was 151.0MB in the beginning and 184.5MB in the end (delta: 33.6MB). Free memory was 119.3MB in the beginning and 65.2MB in the end (delta: 54.1MB). Peak memory consumption was 89.3MB. Max. memory is 16.1GB. [2022-11-21 17:29:23,490 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 115.3MB. Free memory is still 69.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 17:29:23,491 INFO L158 Benchmark]: CACSL2BoogieTranslator took 434.62ms. Allocated memory is still 151.0MB. Free memory was 119.3MB in the beginning and 101.0MB in the end (delta: 18.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-21 17:29:23,493 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.65ms. Allocated memory is still 151.0MB. Free memory was 100.5MB in the beginning and 96.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-21 17:29:23,494 INFO L158 Benchmark]: Boogie Preprocessor took 70.75ms. Allocated memory is still 151.0MB. Free memory was 96.3MB in the beginning and 93.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 17:29:23,501 INFO L158 Benchmark]: RCFGBuilder took 1358.25ms. Allocated memory was 151.0MB in the beginning and 184.5MB in the end (delta: 33.6MB). Free memory was 93.7MB in the beginning and 98.8MB in the end (delta: -5.1MB). Peak memory consumption was 55.9MB. Max. memory is 16.1GB. [2022-11-21 17:29:23,503 INFO L158 Benchmark]: TraceAbstraction took 785.18ms. Allocated memory is still 184.5MB. Free memory was 97.7MB in the beginning and 65.2MB in the end (delta: 32.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2022-11-21 17:29:23,503 INFO L158 Benchmark]: Witness Printer took 11.10ms. Allocated memory is still 184.5MB. Free memory was 65.2MB in the beginning and 65.2MB in the end (delta: 2.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 17:29:23,511 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 115.3MB. Free memory is still 69.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 434.62ms. Allocated memory is still 151.0MB. Free memory was 119.3MB in the beginning and 101.0MB in the end (delta: 18.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.65ms. Allocated memory is still 151.0MB. Free memory was 100.5MB in the beginning and 96.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 70.75ms. Allocated memory is still 151.0MB. Free memory was 96.3MB in the beginning and 93.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1358.25ms. Allocated memory was 151.0MB in the beginning and 184.5MB in the end (delta: 33.6MB). Free memory was 93.7MB in the beginning and 98.8MB in the end (delta: -5.1MB). Peak memory consumption was 55.9MB. Max. memory is 16.1GB. * TraceAbstraction took 785.18ms. Allocated memory is still 184.5MB. Free memory was 97.7MB in the beginning and 65.2MB in the end (delta: 32.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Witness Printer took 11.10ms. Allocated memory is still 184.5MB. Free memory was 65.2MB in the beginning and 65.2MB in the end (delta: 2.6kB). 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 bitwiseComplement at line 166, overapproximation of bitwiseOr at line 164, overapproximation of bitwiseAnd at line 151. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L28] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 8); [L29] const SORT_3 msb_SORT_3 = (SORT_3)1 << (8 - 1); [L31] const SORT_10 mask_SORT_10 = (SORT_10)-1 >> (sizeof(SORT_10) * 8 - 32); [L32] const SORT_10 msb_SORT_10 = (SORT_10)1 << (32 - 1); [L34] const SORT_31 mask_SORT_31 = (SORT_31)-1 >> (sizeof(SORT_31) * 8 - 4); [L35] const SORT_31 msb_SORT_31 = (SORT_31)1 << (4 - 1); [L37] const SORT_67 mask_SORT_67 = (SORT_67)-1 >> (sizeof(SORT_67) * 8 - 10); [L38] const SORT_67 msb_SORT_67 = (SORT_67)1 << (10 - 1); [L40] const SORT_1 var_7 = 0; [L41] const SORT_10 var_12 = 0; [L42] const SORT_1 var_21 = 1; [L43] const SORT_67 var_68 = 0; [L44] const SORT_10 var_123 = 104; [L45] const SORT_10 var_140 = 1; [L47] SORT_1 input_2; [L48] SORT_3 input_4; [L49] SORT_1 input_5; [L50] SORT_1 input_6; [L51] SORT_1 input_29; [L52] SORT_31 input_32; [L53] SORT_1 input_34; [L54] SORT_31 input_36; [L55] SORT_1 input_38; [L56] SORT_1 input_44; [L57] SORT_1 input_46; [L58] SORT_1 input_48; [L59] SORT_3 input_52; [L60] SORT_1 input_55; [L61] SORT_1 input_63; [L62] SORT_1 input_73; [L63] SORT_1 input_79; [L64] SORT_1 input_80; [L65] SORT_1 input_92; [L66] SORT_1 input_99; [L67] SORT_1 input_105; [L68] SORT_1 input_111; [L69] SORT_1 input_117; [L70] SORT_1 input_118; [L71] SORT_1 input_119; [L72] SORT_67 input_138; [L73] SORT_1 input_147; [L74] SORT_1 input_148; [L75] SORT_1 input_149; [L77] SORT_1 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L78] SORT_1 state_14 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L79] SORT_1 state_25 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L80] SORT_1 state_27 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L81] SORT_1 state_40 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L82] SORT_1 state_42 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L83] SORT_1 state_50 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L84] SORT_1 state_57 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L85] SORT_1 state_59 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L86] SORT_1 state_61 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L87] SORT_1 state_65 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L88] SORT_67 state_69 = __VERIFIER_nondet_ushort() & mask_SORT_67; [L89] SORT_1 state_71 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L91] SORT_1 init_9_arg_1 = var_7; [L92] state_8 = init_9_arg_1 [L93] SORT_1 init_15_arg_1 = var_7; [L94] state_14 = init_15_arg_1 [L95] SORT_1 init_26_arg_1 = var_7; [L96] state_25 = init_26_arg_1 [L97] SORT_1 init_28_arg_1 = var_7; [L98] state_27 = init_28_arg_1 [L99] SORT_1 init_41_arg_1 = var_7; [L100] state_40 = init_41_arg_1 [L101] SORT_1 init_43_arg_1 = var_7; [L102] state_42 = init_43_arg_1 [L103] SORT_1 init_51_arg_1 = var_21; [L104] state_50 = init_51_arg_1 [L105] SORT_1 init_58_arg_1 = var_7; [L106] state_57 = init_58_arg_1 [L107] SORT_1 init_60_arg_1 = var_7; [L108] state_59 = init_60_arg_1 [L109] SORT_1 init_62_arg_1 = var_7; [L110] state_61 = init_62_arg_1 [L111] SORT_1 init_66_arg_1 = var_7; [L112] state_65 = init_66_arg_1 [L113] SORT_67 init_70_arg_1 = var_68; [L114] state_69 = init_70_arg_1 [L115] SORT_1 init_72_arg_1 = var_7; [L116] state_71 = init_72_arg_1 VAL [init_15_arg_1=0, init_26_arg_1=0, init_28_arg_1=0, init_41_arg_1=0, init_43_arg_1=0, init_51_arg_1=1, init_58_arg_1=0, init_60_arg_1=0, init_62_arg_1=0, init_66_arg_1=0, init_70_arg_1=0, init_72_arg_1=0, init_9_arg_1=0, mask_SORT_1=1, mask_SORT_10=4294967295, mask_SORT_3=255, mask_SORT_31=15, mask_SORT_67=1023, msb_SORT_1=1, msb_SORT_10=2147483648, msb_SORT_3=128, msb_SORT_31=8, msb_SORT_67=512, state_14=0, state_25=0, state_27=0, state_40=0, state_42=0, state_50=1, state_57=0, state_59=0, state_61=0, state_65=0, state_69=0, state_71=0, state_8=0, var_12=0, var_123=104, var_140=1, var_21=1, var_68=0, var_7=0] [L119] input_2 = __VERIFIER_nondet_uchar() [L120] input_4 = __VERIFIER_nondet_uchar() [L121] input_5 = __VERIFIER_nondet_uchar() [L122] input_6 = __VERIFIER_nondet_uchar() [L123] input_29 = __VERIFIER_nondet_uchar() [L124] input_32 = __VERIFIER_nondet_uchar() [L125] input_34 = __VERIFIER_nondet_uchar() [L126] input_36 = __VERIFIER_nondet_uchar() [L127] input_38 = __VERIFIER_nondet_uchar() [L128] input_44 = __VERIFIER_nondet_uchar() [L129] input_46 = __VERIFIER_nondet_uchar() [L130] input_48 = __VERIFIER_nondet_uchar() [L131] input_52 = __VERIFIER_nondet_uchar() [L132] input_55 = __VERIFIER_nondet_uchar() [L133] input_63 = __VERIFIER_nondet_uchar() [L134] input_73 = __VERIFIER_nondet_uchar() [L135] input_79 = __VERIFIER_nondet_uchar() [L136] input_80 = __VERIFIER_nondet_uchar() [L137] input_92 = __VERIFIER_nondet_uchar() [L138] input_99 = __VERIFIER_nondet_uchar() [L139] input_105 = __VERIFIER_nondet_uchar() [L140] input_111 = __VERIFIER_nondet_uchar() [L141] input_117 = __VERIFIER_nondet_uchar() [L142] input_118 = __VERIFIER_nondet_uchar() [L143] input_119 = __VERIFIER_nondet_uchar() [L144] input_138 = __VERIFIER_nondet_ushort() [L145] input_147 = __VERIFIER_nondet_uchar() [L146] input_148 = __VERIFIER_nondet_uchar() [L147] input_149 = __VERIFIER_nondet_uchar() [L150] SORT_1 var_11_arg_0 = state_8; [L151] var_11_arg_0 = var_11_arg_0 & mask_SORT_1 [L152] SORT_10 var_11 = var_11_arg_0; [L153] SORT_10 var_13_arg_0 = var_11; [L154] SORT_10 var_13_arg_1 = var_12; [L155] SORT_1 var_13 = var_13_arg_0 == var_13_arg_1; [L156] SORT_1 var_16_arg_0 = state_14; [L157] var_16_arg_0 = var_16_arg_0 & mask_SORT_1 [L158] SORT_10 var_16 = var_16_arg_0; [L159] SORT_10 var_17_arg_0 = var_16; [L160] SORT_10 var_17_arg_1 = var_12; [L161] SORT_1 var_17 = var_17_arg_0 == var_17_arg_1; [L162] SORT_1 var_18_arg_0 = var_13; [L163] SORT_1 var_18_arg_1 = var_17; [L164] SORT_1 var_18 = var_18_arg_0 | var_18_arg_1; [L165] SORT_1 var_22_arg_0 = var_18; [L166] SORT_1 var_22 = ~var_22_arg_0; [L167] SORT_1 var_23_arg_0 = var_21; [L168] SORT_1 var_23_arg_1 = var_22; [L169] SORT_1 var_23 = var_23_arg_0 & var_23_arg_1; [L170] var_23 = var_23 & mask_SORT_1 [L171] SORT_1 bad_24_arg_0 = var_23; [L172] CALL __VERIFIER_assert(!(bad_24_arg_0)) [L20] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L20] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-21 17:29:23,553 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796371ee-7a65-42d5-9dad-a016b6cc428d/bin/uautomizer-vX5HgA9Q3a/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796371ee-7a65-42d5-9dad-a016b6cc428d/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796371ee-7a65-42d5-9dad-a016b6cc428d/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796371ee-7a65-42d5-9dad-a016b6cc428d/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796371ee-7a65-42d5-9dad-a016b6cc428d/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796371ee-7a65-42d5-9dad-a016b6cc428d/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796371ee-7a65-42d5-9dad-a016b6cc428d/bin/uautomizer-vX5HgA9Q3a --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 5781aa0e97f21edc6279d327a58f923d207d456768643be187e6a82dd611a001 --- 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-b5237d8 [2022-11-21 17:29:26,445 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 17:29:26,447 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 17:29:26,467 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 17:29:26,467 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 17:29:26,468 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 17:29:26,470 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 17:29:26,472 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 17:29:26,473 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 17:29:26,474 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 17:29:26,475 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 17:29:26,477 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 17:29:26,477 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 17:29:26,478 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 17:29:26,479 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 17:29:26,480 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 17:29:26,481 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 17:29:26,482 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 17:29:26,484 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 17:29:26,486 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 17:29:26,488 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 17:29:26,489 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 17:29:26,491 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 17:29:26,492 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 17:29:26,497 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 17:29:26,497 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 17:29:26,498 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 17:29:26,499 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 17:29:26,499 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 17:29:26,501 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 17:29:26,501 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 17:29:26,502 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 17:29:26,503 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 17:29:26,504 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 17:29:26,515 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 17:29:26,516 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 17:29:26,516 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 17:29:26,517 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 17:29:26,517 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 17:29:26,518 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 17:29:26,519 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 17:29:26,520 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796371ee-7a65-42d5-9dad-a016b6cc428d/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-21 17:29:26,546 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 17:29:26,547 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 17:29:26,547 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 17:29:26,547 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 17:29:26,548 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 17:29:26,548 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 17:29:26,549 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 17:29:26,549 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 17:29:26,549 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 17:29:26,550 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 17:29:26,550 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 17:29:26,550 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 17:29:26,550 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 17:29:26,550 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 17:29:26,551 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-21 17:29:26,551 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-21 17:29:26,551 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-21 17:29:26,551 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 17:29:26,552 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 17:29:26,552 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 17:29:26,552 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 17:29:26,552 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 17:29:26,553 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 17:29:26,553 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:29:26,553 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 17:29:26,553 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 17:29:26,553 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 17:29:26,554 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-21 17:29:26,554 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-21 17:29:26,554 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 17:29:26,554 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 17:29:26,555 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 17:29:26,555 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-21 17:29:26,555 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796371ee-7a65-42d5-9dad-a016b6cc428d/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796371ee-7a65-42d5-9dad-a016b6cc428d/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5781aa0e97f21edc6279d327a58f923d207d456768643be187e6a82dd611a001 [2022-11-21 17:29:26,958 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 17:29:26,989 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 17:29:26,992 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 17:29:26,994 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 17:29:26,995 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 17:29:26,997 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796371ee-7a65-42d5-9dad-a016b6cc428d/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p10.c [2022-11-21 17:29:30,329 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 17:29:30,665 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 17:29:30,666 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796371ee-7a65-42d5-9dad-a016b6cc428d/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p10.c [2022-11-21 17:29:30,677 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796371ee-7a65-42d5-9dad-a016b6cc428d/bin/uautomizer-vX5HgA9Q3a/data/082e1dfaf/71cabef607204113893248b5e67ff9c9/FLAGba46a8c23 [2022-11-21 17:29:30,701 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796371ee-7a65-42d5-9dad-a016b6cc428d/bin/uautomizer-vX5HgA9Q3a/data/082e1dfaf/71cabef607204113893248b5e67ff9c9 [2022-11-21 17:29:30,704 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 17:29:30,705 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 17:29:30,707 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 17:29:30,707 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 17:29:30,712 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 17:29:30,724 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:29:30" (1/1) ... [2022-11-21 17:29:30,725 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32ac299f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:30, skipping insertion in model container [2022-11-21 17:29:30,725 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:29:30" (1/1) ... [2022-11-21 17:29:30,734 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 17:29:30,803 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 17:29:31,021 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_796371ee-7a65-42d5-9dad-a016b6cc428d/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p10.c[1107,1120] [2022-11-21 17:29:31,198 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:29:31,204 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 17:29:31,215 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_796371ee-7a65-42d5-9dad-a016b6cc428d/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p10.c[1107,1120] [2022-11-21 17:29:31,289 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:29:31,303 INFO L208 MainTranslator]: Completed translation [2022-11-21 17:29:31,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:31 WrapperNode [2022-11-21 17:29:31,304 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 17:29:31,305 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 17:29:31,306 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 17:29:31,306 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 17:29:31,314 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:31" (1/1) ... [2022-11-21 17:29:31,336 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:31" (1/1) ... [2022-11-21 17:29:31,395 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 435 [2022-11-21 17:29:31,398 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 17:29:31,406 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 17:29:31,406 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 17:29:31,406 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 17:29:31,417 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:31" (1/1) ... [2022-11-21 17:29:31,418 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:31" (1/1) ... [2022-11-21 17:29:31,434 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:31" (1/1) ... [2022-11-21 17:29:31,450 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:31" (1/1) ... [2022-11-21 17:29:31,462 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:31" (1/1) ... [2022-11-21 17:29:31,482 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:31" (1/1) ... [2022-11-21 17:29:31,484 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:31" (1/1) ... [2022-11-21 17:29:31,486 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:31" (1/1) ... [2022-11-21 17:29:31,491 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 17:29:31,492 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 17:29:31,493 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 17:29:31,493 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 17:29:31,494 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:31" (1/1) ... [2022-11-21 17:29:31,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:29:31,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796371ee-7a65-42d5-9dad-a016b6cc428d/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:29:31,536 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796371ee-7a65-42d5-9dad-a016b6cc428d/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 17:29:31,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796371ee-7a65-42d5-9dad-a016b6cc428d/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 17:29:31,594 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 17:29:31,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 17:29:31,840 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 17:29:31,842 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 17:29:32,466 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 17:29:32,474 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 17:29:32,474 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-21 17:29:32,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:29:32 BoogieIcfgContainer [2022-11-21 17:29:32,477 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 17:29:32,479 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 17:29:32,479 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 17:29:32,483 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 17:29:32,483 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 05:29:30" (1/3) ... [2022-11-21 17:29:32,484 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7469ae4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:29:32, skipping insertion in model container [2022-11-21 17:29:32,485 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:31" (2/3) ... [2022-11-21 17:29:32,485 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7469ae4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:29:32, skipping insertion in model container [2022-11-21 17:29:32,485 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:29:32" (3/3) ... [2022-11-21 17:29:32,487 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p10.c [2022-11-21 17:29:32,515 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 17:29:32,516 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-21 17:29:32,593 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 17:29:32,603 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;@6f5ed9af, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 17:29:32,604 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-21 17:29:32,609 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:29:32,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-21 17:29:32,617 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:29:32,618 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-21 17:29:32,619 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:29:32,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:29:32,630 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-21 17:29:32,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 17:29:32,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [838247239] [2022-11-21 17:29:32,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:29:32,652 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 [2022-11-21 17:29:32,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796371ee-7a65-42d5-9dad-a016b6cc428d/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 17:29:32,666 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796371ee-7a65-42d5-9dad-a016b6cc428d/bin/uautomizer-vX5HgA9Q3a/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) [2022-11-21 17:29:32,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796371ee-7a65-42d5-9dad-a016b6cc428d/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 17:29:32,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:29:32,929 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-21 17:29:32,941 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:29:33,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:29:33,221 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 17:29:33,222 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 17:29:33,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [838247239] [2022-11-21 17:29:33,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [838247239] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:29:33,224 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:29:33,224 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 17:29:33,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441420377] [2022-11-21 17:29:33,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:29:33,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 17:29:33,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 17:29:33,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 17:29:33,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 17:29:33,288 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:29:33,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:29:33,385 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-21 17:29:33,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 17:29:33,389 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-21 17:29:33,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:29:33,400 INFO L225 Difference]: With dead ends: 20 [2022-11-21 17:29:33,400 INFO L226 Difference]: Without dead ends: 11 [2022-11-21 17:29:33,404 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 17:29:33,410 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 17:29:33,413 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 17:29:33,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-21 17:29:33,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-21 17:29:33,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:29:33,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-21 17:29:33,452 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-21 17:29:33,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:29:33,453 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-21 17:29:33,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:29:33,454 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-21 17:29:33,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-21 17:29:33,455 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:29:33,455 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-21 17:29:33,480 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796371ee-7a65-42d5-9dad-a016b6cc428d/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 17:29:33,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796371ee-7a65-42d5-9dad-a016b6cc428d/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 17:29:33,681 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:29:33,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:29:33,682 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-21 17:29:33,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 17:29:33,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2118439931] [2022-11-21 17:29:33,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:29:33,686 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 [2022-11-21 17:29:33,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796371ee-7a65-42d5-9dad-a016b6cc428d/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 17:29:33,688 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796371ee-7a65-42d5-9dad-a016b6cc428d/bin/uautomizer-vX5HgA9Q3a/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) [2022-11-21 17:29:33,730 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796371ee-7a65-42d5-9dad-a016b6cc428d/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 17:29:33,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:29:33,998 INFO L263 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-21 17:29:34,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:29:34,260 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:29:34,260 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 17:29:35,235 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:29:35,236 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 17:29:35,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2118439931] [2022-11-21 17:29:35,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2118439931] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 17:29:35,239 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-21 17:29:35,239 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-11-21 17:29:35,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544449805] [2022-11-21 17:29:35,245 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-21 17:29:35,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-21 17:29:35,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 17:29:35,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-21 17:29:35,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-21 17:29:35,250 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:29:35,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:29:35,424 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-11-21 17:29:35,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 17:29:35,425 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-21 17:29:35,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:29:35,426 INFO L225 Difference]: With dead ends: 16 [2022-11-21 17:29:35,426 INFO L226 Difference]: Without dead ends: 14 [2022-11-21 17:29:35,427 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-21 17:29:35,428 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 13 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 17:29:35,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 15 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 17:29:35,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-21 17:29:35,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-11-21 17:29:35,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:29:35,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-11-21 17:29:35,433 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-11-21 17:29:35,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:29:35,434 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-11-21 17:29:35,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:29:35,438 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-11-21 17:29:35,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-21 17:29:35,445 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:29:35,445 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-21 17:29:35,466 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796371ee-7a65-42d5-9dad-a016b6cc428d/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 17:29:35,660 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796371ee-7a65-42d5-9dad-a016b6cc428d/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 17:29:35,660 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:29:35,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:29:35,661 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-11-21 17:29:35,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 17:29:35,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [703729284] [2022-11-21 17:29:35,663 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-21 17:29:35,664 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 [2022-11-21 17:29:35,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796371ee-7a65-42d5-9dad-a016b6cc428d/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 17:29:35,665 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796371ee-7a65-42d5-9dad-a016b6cc428d/bin/uautomizer-vX5HgA9Q3a/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) [2022-11-21 17:29:35,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796371ee-7a65-42d5-9dad-a016b6cc428d/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 17:29:36,110 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-21 17:29:36,111 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 17:29:36,131 INFO L263 TraceCheckSpWp]: Trace formula consists of 659 conjuncts, 52 conjunts are in the unsatisfiable core [2022-11-21 17:29:36,139 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:29:36,462 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:29:36,463 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 17:29:39,236 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:29:39,236 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 17:29:39,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [703729284] [2022-11-21 17:29:39,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [703729284] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 17:29:39,240 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-21 17:29:39,241 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-11-21 17:29:39,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022301256] [2022-11-21 17:29:39,244 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-21 17:29:39,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-21 17:29:39,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 17:29:39,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-21 17:29:39,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-21 17:29:39,249 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:29:39,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:29:39,496 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2022-11-21 17:29:39,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-21 17:29:39,498 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-21 17:29:39,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:29:39,499 INFO L225 Difference]: With dead ends: 19 [2022-11-21 17:29:39,499 INFO L226 Difference]: Without dead ends: 17 [2022-11-21 17:29:39,499 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2022-11-21 17:29:39,500 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 13 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-21 17:29:39,501 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 22 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-21 17:29:39,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-21 17:29:39,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2022-11-21 17:29:39,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:29:39,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-11-21 17:29:39,506 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 11 [2022-11-21 17:29:39,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:29:39,510 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-11-21 17:29:39,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:29:39,511 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-11-21 17:29:39,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-21 17:29:39,512 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:29:39,512 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1] [2022-11-21 17:29:39,535 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796371ee-7a65-42d5-9dad-a016b6cc428d/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 17:29:39,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796371ee-7a65-42d5-9dad-a016b6cc428d/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 17:29:39,728 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:29:39,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:29:39,729 INFO L85 PathProgramCache]: Analyzing trace with hash 1580781475, now seen corresponding path program 3 times [2022-11-21 17:29:39,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 17:29:39,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1537366117] [2022-11-21 17:29:39,731 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-21 17:29:39,731 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 [2022-11-21 17:29:39,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796371ee-7a65-42d5-9dad-a016b6cc428d/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 17:29:39,732 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796371ee-7a65-42d5-9dad-a016b6cc428d/bin/uautomizer-vX5HgA9Q3a/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) [2022-11-21 17:29:39,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796371ee-7a65-42d5-9dad-a016b6cc428d/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-21 17:29:40,293 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-11-21 17:29:40,293 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 17:29:40,358 INFO L263 TraceCheckSpWp]: Trace formula consists of 940 conjuncts, 99 conjunts are in the unsatisfiable core [2022-11-21 17:29:40,380 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:29:41,770 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:29:41,770 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 17:29:46,269 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:29:46,270 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 17:29:46,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1537366117] [2022-11-21 17:29:46,270 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1537366117] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 17:29:46,270 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-21 17:29:46,271 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2022-11-21 17:29:46,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069484014] [2022-11-21 17:29:46,271 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-21 17:29:46,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-21 17:29:46,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 17:29:46,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-21 17:29:46,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2022-11-21 17:29:46,276 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 12 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 12 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:29:46,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:29:46,663 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2022-11-21 17:29:46,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-21 17:29:46,664 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 12 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-11-21 17:29:46,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:29:46,665 INFO L225 Difference]: With dead ends: 22 [2022-11-21 17:29:46,665 INFO L226 Difference]: Without dead ends: 20 [2022-11-21 17:29:46,666 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=80, Invalid=160, Unknown=0, NotChecked=0, Total=240 [2022-11-21 17:29:46,667 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 25 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-21 17:29:46,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 22 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-21 17:29:46,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-11-21 17:29:46,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 18. [2022-11-21 17:29:46,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.0588235294117647) internal successors, (18), 17 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:29:46,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2022-11-21 17:29:46,675 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 14 [2022-11-21 17:29:46,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:29:46,676 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2022-11-21 17:29:46,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 12 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:29:46,676 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2022-11-21 17:29:46,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-21 17:29:46,677 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:29:46,677 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1] [2022-11-21 17:29:46,702 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796371ee-7a65-42d5-9dad-a016b6cc428d/bin/uautomizer-vX5HgA9Q3a/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)] Forceful destruction successful, exit code 0 [2022-11-21 17:29:46,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796371ee-7a65-42d5-9dad-a016b6cc428d/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 17:29:46,895 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:29:46,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:29:46,896 INFO L85 PathProgramCache]: Analyzing trace with hash -1250702327, now seen corresponding path program 4 times [2022-11-21 17:29:46,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 17:29:46,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1873096640] [2022-11-21 17:29:46,897 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-21 17:29:46,898 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 [2022-11-21 17:29:46,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796371ee-7a65-42d5-9dad-a016b6cc428d/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 17:29:46,899 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796371ee-7a65-42d5-9dad-a016b6cc428d/bin/uautomizer-vX5HgA9Q3a/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) [2022-11-21 17:29:46,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796371ee-7a65-42d5-9dad-a016b6cc428d/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 17:29:47,409 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-21 17:29:47,409 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 17:29:47,444 INFO L263 TraceCheckSpWp]: Trace formula consists of 1221 conjuncts, 125 conjunts are in the unsatisfiable core [2022-11-21 17:29:47,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:29:48,259 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:29:48,260 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 17:30:13,129 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:30:13,130 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 17:30:13,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1873096640] [2022-11-21 17:30:13,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1873096640] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 17:30:13,131 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-21 17:30:13,131 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2022-11-21 17:30:13,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194011619] [2022-11-21 17:30:13,131 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-21 17:30:13,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-21 17:30:13,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 17:30:13,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-21 17:30:13,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2022-11-21 17:30:13,134 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:30:13,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:30:13,526 INFO L93 Difference]: Finished difference Result 25 states and 25 transitions. [2022-11-21 17:30:13,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-21 17:30:13,527 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-11-21 17:30:13,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:30:13,527 INFO L225 Difference]: With dead ends: 25 [2022-11-21 17:30:13,528 INFO L226 Difference]: Without dead ends: 23 [2022-11-21 17:30:13,528 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=121, Invalid=221, Unknown=0, NotChecked=0, Total=342 [2022-11-21 17:30:13,529 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 31 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-21 17:30:13,530 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 30 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-21 17:30:13,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-11-21 17:30:13,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 21. [2022-11-21 17:30:13,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.05) internal successors, (21), 20 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:30:13,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2022-11-21 17:30:13,537 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 17 [2022-11-21 17:30:13,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:30:13,538 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2022-11-21 17:30:13,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:30:13,538 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2022-11-21 17:30:13,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-21 17:30:13,539 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:30:13,539 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 1, 1, 1, 1] [2022-11-21 17:30:13,559 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796371ee-7a65-42d5-9dad-a016b6cc428d/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 17:30:13,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796371ee-7a65-42d5-9dad-a016b6cc428d/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 17:30:13,755 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:30:13,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:30:13,755 INFO L85 PathProgramCache]: Analyzing trace with hash -826954269, now seen corresponding path program 5 times [2022-11-21 17:30:13,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 17:30:13,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1364309039] [2022-11-21 17:30:13,757 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-21 17:30:13,757 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 [2022-11-21 17:30:13,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796371ee-7a65-42d5-9dad-a016b6cc428d/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 17:30:13,759 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796371ee-7a65-42d5-9dad-a016b6cc428d/bin/uautomizer-vX5HgA9Q3a/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) [2022-11-21 17:30:13,765 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796371ee-7a65-42d5-9dad-a016b6cc428d/bin/uautomizer-vX5HgA9Q3a/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)] Waiting until timeout for monitored process [2022-11-21 17:30:14,556 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2022-11-21 17:30:14,556 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 17:30:14,594 INFO L263 TraceCheckSpWp]: Trace formula consists of 1502 conjuncts, 178 conjunts are in the unsatisfiable core [2022-11-21 17:30:14,636 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:30:15,870 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:30:15,870 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 17:31:44,436 WARN L233 SmtUtils]: Spent 7.15s on a formula simplification. DAG size of input: 1026 DAG size of output: 128 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-21 17:31:44,549 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:31:44,549 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 17:31:44,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1364309039] [2022-11-21 17:31:44,549 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1364309039] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 17:31:44,550 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-21 17:31:44,550 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2022-11-21 17:31:44,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480358789] [2022-11-21 17:31:44,550 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-21 17:31:44,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-21 17:31:44,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 17:31:44,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-21 17:31:44,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=159, Unknown=0, NotChecked=0, Total=240 [2022-11-21 17:31:44,552 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand has 16 states, 16 states have (on average 2.375) internal successors, (38), 16 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:31:44,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:31:44,623 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2022-11-21 17:31:44,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 17:31:44,624 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.375) internal successors, (38), 16 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-11-21 17:31:44,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:31:44,625 INFO L225 Difference]: With dead ends: 21 [2022-11-21 17:31:44,625 INFO L226 Difference]: Without dead ends: 0 [2022-11-21 17:31:44,626 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 13.9s TimeCoverageRelationStatistics Valid=97, Invalid=175, Unknown=0, NotChecked=0, Total=272 [2022-11-21 17:31:44,628 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 6 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 17:31:44,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 11 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 17:31:44,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-21 17:31:44,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-21 17:31:44,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:31:44,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-21 17:31:44,630 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2022-11-21 17:31:44,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:31:44,631 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-21 17:31:44,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.375) internal successors, (38), 16 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:31:44,631 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-21 17:31:44,631 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-21 17:31:44,634 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-21 17:31:44,652 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796371ee-7a65-42d5-9dad-a016b6cc428d/bin/uautomizer-vX5HgA9Q3a/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)] Forceful destruction successful, exit code 0 [2022-11-21 17:31:44,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796371ee-7a65-42d5-9dad-a016b6cc428d/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 17:31:44,844 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-21 17:31:45,037 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-21 17:31:45,037 INFO L895 garLoopResultBuilder]: At program point L420(lines 22 421) the Hoare annotation is: false [2022-11-21 17:31:45,037 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-21 17:31:45,037 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-21 17:31:45,038 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-21 17:31:45,038 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 20) no Hoare annotation was computed. [2022-11-21 17:31:45,038 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2022-11-21 17:31:45,038 INFO L899 garLoopResultBuilder]: For program point L20-1(line 20) no Hoare annotation was computed. [2022-11-21 17:31:45,038 INFO L895 garLoopResultBuilder]: At program point L117-2(lines 117 419) the Hoare annotation is: (let ((.cse0 (= (_ bv1 8) |ULTIMATE.start_main_~mask_SORT_1~0#1|)) (.cse1 (= |ULTIMATE.start_main_~var_7~0#1| |ULTIMATE.start_main_~state_27~0#1|)) (.cse2 (= |ULTIMATE.start_main_~var_7~0#1| |ULTIMATE.start_main_~state_59~0#1|)) (.cse3 (= |ULTIMATE.start_main_~var_7~0#1| |ULTIMATE.start_main_~state_40~0#1|)) (.cse4 (= |ULTIMATE.start_main_~var_7~0#1| |ULTIMATE.start_main_~state_61~0#1|)) (.cse5 (= (_ bv0 8) |ULTIMATE.start_main_~state_57~0#1|)) (.cse6 (= |ULTIMATE.start_main_~var_7~0#1| |ULTIMATE.start_main_~state_71~0#1|)) (.cse7 (= |ULTIMATE.start_main_~var_12~0#1| (_ bv0 32))) (.cse8 (= (_ bv0 8) |ULTIMATE.start_main_~state_14~0#1|))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 (= |ULTIMATE.start_main_~var_7~0#1| |ULTIMATE.start_main_~state_25~0#1|) .cse6 (= (_ bv1 8) |ULTIMATE.start_main_~var_21~0#1|) (= |ULTIMATE.start_main_~state_71~0#1| |ULTIMATE.start_main_~state_57~0#1|) .cse7 .cse8) (and .cse0 (= |ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)) .cse1 .cse2 .cse3 (= (_ bv0 8) |ULTIMATE.start_main_~state_71~0#1|) .cse4 .cse5 .cse6 .cse7 .cse8))) [2022-11-21 17:31:45,039 INFO L899 garLoopResultBuilder]: For program point L117-3(lines 117 419) no Hoare annotation was computed. [2022-11-21 17:31:45,039 INFO L899 garLoopResultBuilder]: For program point L20-3(line 20) no Hoare annotation was computed. [2022-11-21 17:31:45,042 INFO L444 BasicCegarLoop]: Path program histogram: [5, 1] [2022-11-21 17:31:45,044 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 17:31:45,069 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 05:31:45 BoogieIcfgContainer [2022-11-21 17:31:45,069 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 17:31:45,070 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 17:31:45,070 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 17:31:45,070 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 17:31:45,071 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:29:32" (3/4) ... [2022-11-21 17:31:45,074 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-21 17:31:45,087 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-21 17:31:45,087 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-21 17:31:45,088 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-21 17:31:45,153 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796371ee-7a65-42d5-9dad-a016b6cc428d/bin/uautomizer-vX5HgA9Q3a/witness.graphml [2022-11-21 17:31:45,154 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 17:31:45,154 INFO L158 Benchmark]: Toolchain (without parser) took 134449.16ms. Allocated memory was 69.2MB in the beginning and 394.3MB in the end (delta: 325.1MB). Free memory was 45.9MB in the beginning and 213.9MB in the end (delta: -168.0MB). Peak memory consumption was 157.4MB. Max. memory is 16.1GB. [2022-11-21 17:31:45,155 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 69.2MB. Free memory is still 46.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 17:31:45,155 INFO L158 Benchmark]: CACSL2BoogieTranslator took 597.66ms. Allocated memory was 69.2MB in the beginning and 107.0MB in the end (delta: 37.7MB). Free memory was 45.7MB in the beginning and 79.4MB in the end (delta: -33.7MB). Peak memory consumption was 14.2MB. Max. memory is 16.1GB. [2022-11-21 17:31:45,155 INFO L158 Benchmark]: Boogie Procedure Inliner took 99.25ms. Allocated memory is still 107.0MB. Free memory was 79.4MB in the beginning and 75.7MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-21 17:31:45,156 INFO L158 Benchmark]: Boogie Preprocessor took 86.00ms. Allocated memory is still 107.0MB. Free memory was 75.7MB in the beginning and 73.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 17:31:45,156 INFO L158 Benchmark]: RCFGBuilder took 984.30ms. Allocated memory is still 107.0MB. Free memory was 73.1MB in the beginning and 65.3MB in the end (delta: 7.7MB). Peak memory consumption was 26.3MB. Max. memory is 16.1GB. [2022-11-21 17:31:45,157 INFO L158 Benchmark]: TraceAbstraction took 132590.59ms. Allocated memory was 107.0MB in the beginning and 394.3MB in the end (delta: 287.3MB). Free memory was 64.7MB in the beginning and 221.2MB in the end (delta: -156.5MB). Peak memory consumption was 131.6MB. Max. memory is 16.1GB. [2022-11-21 17:31:45,157 INFO L158 Benchmark]: Witness Printer took 83.81ms. Allocated memory is still 394.3MB. Free memory was 221.2MB in the beginning and 213.9MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-21 17:31:45,159 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 69.2MB. Free memory is still 46.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 597.66ms. Allocated memory was 69.2MB in the beginning and 107.0MB in the end (delta: 37.7MB). Free memory was 45.7MB in the beginning and 79.4MB in the end (delta: -33.7MB). Peak memory consumption was 14.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 99.25ms. Allocated memory is still 107.0MB. Free memory was 79.4MB in the beginning and 75.7MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 86.00ms. Allocated memory is still 107.0MB. Free memory was 75.7MB in the beginning and 73.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 984.30ms. Allocated memory is still 107.0MB. Free memory was 73.1MB in the beginning and 65.3MB in the end (delta: 7.7MB). Peak memory consumption was 26.3MB. Max. memory is 16.1GB. * TraceAbstraction took 132590.59ms. Allocated memory was 107.0MB in the beginning and 394.3MB in the end (delta: 287.3MB). Free memory was 64.7MB in the beginning and 221.2MB in the end (delta: -156.5MB). Peak memory consumption was 131.6MB. Max. memory is 16.1GB. * Witness Printer took 83.81ms. Allocated memory is still 394.3MB. Free memory was 221.2MB in the beginning and 213.9MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 20]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 132.5s, OverallIterations: 6, TraceHistogramMax: 6, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 92 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 92 mSDsluCounter, 113 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 90 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 113 IncrementalHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 23 mSDtfsCounter, 113 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 150 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 24.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=5, InterpolantAutomatonStates: 43, 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, 6 MinimizatonAttempts, 10 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 8 NumberOfFragments, 73 HoareAnnotationTreeSize, 2 FomulaSimplifications, 253 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 318 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 126.4s InterpolantComputationTime, 75 NumberOfCodeBlocks, 75 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 134 ConstructedInterpolants, 54 QuantifiedInterpolants, 10025 SizeOfPredicates, 513 NumberOfNonLiveVariables, 4797 ConjunctsInSsa, 506 ConjunctsInUnsatCore, 11 InterpolantComputations, 1 PerfectInterpolantSequences, 0/180 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 117]: Loop Invariant Derived loop invariant: (((((((((((1bv8 == mask_SORT_1 && var_7 == state_27) && var_7 == state_59) && var_7 == state_40) && var_7 == state_61) && 0bv8 == state_57) && var_7 == state_25) && var_7 == state_71) && 1bv8 == var_21) && state_71 == state_57) && var_12 == 0bv32) && 0bv8 == state_14) || ((((((((((1bv8 == mask_SORT_1 && cond == 1bv32) && var_7 == state_27) && var_7 == state_59) && var_7 == state_40) && 0bv8 == state_71) && var_7 == state_61) && 0bv8 == state_57) && var_7 == state_71) && var_12 == 0bv32) && 0bv8 == state_14) RESULT: Ultimate proved your program to be correct! [2022-11-21 17:31:45,210 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796371ee-7a65-42d5-9dad-a016b6cc428d/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE