./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-examples/standard_partition_ground-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a 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_57a0f74a-9ed9-4a87-9798-a8b69ad97a53/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57a0f74a-9ed9-4a87-9798-a8b69ad97a53/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57a0f74a-9ed9-4a87-9798-a8b69ad97a53/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57a0f74a-9ed9-4a87-9798-a8b69ad97a53/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-examples/standard_partition_ground-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57a0f74a-9ed9-4a87-9798-a8b69ad97a53/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57a0f74a-9ed9-4a87-9798-a8b69ad97a53/bin/uautomizer-ZsLfNo2U6R --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fcf72d109deb69f1acda4466c7376bd6c362d474983f8a50a2faed8c0a192a76 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 17:48:09,680 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:48:09,682 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:48:09,731 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:48:09,732 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:48:09,735 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:48:09,738 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:48:09,740 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:48:09,742 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:48:09,748 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:48:09,750 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:48:09,752 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:48:09,752 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:48:09,755 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:48:09,757 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:48:09,759 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:48:09,760 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:48:09,761 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:48:09,763 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:48:09,769 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:48:09,770 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:48:09,772 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:48:09,773 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:48:09,774 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:48:09,784 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:48:09,784 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:48:09,784 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:48:09,786 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:48:09,786 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:48:09,787 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:48:09,787 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:48:09,788 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:48:09,790 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:48:09,791 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:48:09,793 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:48:09,793 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:48:09,794 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:48:09,794 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:48:09,794 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:48:09,796 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:48:09,796 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:48:09,797 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57a0f74a-9ed9-4a87-9798-a8b69ad97a53/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-25 17:48:09,831 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:48:09,832 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:48:09,832 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:48:09,832 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:48:09,833 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:48:09,833 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:48:09,834 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:48:09,834 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:48:09,834 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:48:09,834 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:48:09,834 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 17:48:09,834 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:48:09,835 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 17:48:09,835 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:48:09,835 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:48:09,835 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:48:09,835 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:48:09,836 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 17:48:09,836 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:48:09,836 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:48:09,836 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:48:09,836 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:48:09,836 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:48:09,837 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:48:09,837 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:48:09,837 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:48:09,837 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:48:09,837 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:48:09,838 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:48:09,838 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 17:48:09,838 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:48:09,838 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:48:09,838 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:48:09,838 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:48:09,839 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57a0f74a-9ed9-4a87-9798-a8b69ad97a53/bin/uautomizer-ZsLfNo2U6R/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57a0f74a-9ed9-4a87-9798-a8b69ad97a53/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fcf72d109deb69f1acda4466c7376bd6c362d474983f8a50a2faed8c0a192a76 [2022-11-25 17:48:10,146 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:48:10,173 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:48:10,177 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:48:10,178 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:48:10,179 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:48:10,180 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57a0f74a-9ed9-4a87-9798-a8b69ad97a53/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/array-examples/standard_partition_ground-2.i [2022-11-25 17:48:13,404 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:48:13,642 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:48:13,643 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57a0f74a-9ed9-4a87-9798-a8b69ad97a53/sv-benchmarks/c/array-examples/standard_partition_ground-2.i [2022-11-25 17:48:13,649 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57a0f74a-9ed9-4a87-9798-a8b69ad97a53/bin/uautomizer-ZsLfNo2U6R/data/4dce2ac6f/83c0f60c38c448449b0a7c913093a1ab/FLAG467c8717a [2022-11-25 17:48:13,664 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57a0f74a-9ed9-4a87-9798-a8b69ad97a53/bin/uautomizer-ZsLfNo2U6R/data/4dce2ac6f/83c0f60c38c448449b0a7c913093a1ab [2022-11-25 17:48:13,666 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:48:13,668 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:48:13,669 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:48:13,670 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:48:13,673 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:48:13,674 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:48:13" (1/1) ... [2022-11-25 17:48:13,676 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@726bf352 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:48:13, skipping insertion in model container [2022-11-25 17:48:13,676 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:48:13" (1/1) ... [2022-11-25 17:48:13,684 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:48:13,700 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:48:13,908 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_57a0f74a-9ed9-4a87-9798-a8b69ad97a53/sv-benchmarks/c/array-examples/standard_partition_ground-2.i[820,833] [2022-11-25 17:48:13,929 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:48:13,940 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:48:13,955 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_57a0f74a-9ed9-4a87-9798-a8b69ad97a53/sv-benchmarks/c/array-examples/standard_partition_ground-2.i[820,833] [2022-11-25 17:48:13,965 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:48:13,980 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:48:13,980 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:48:13 WrapperNode [2022-11-25 17:48:13,980 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:48:13,981 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:48:13,981 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:48:13,982 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:48:13,991 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:48:13" (1/1) ... [2022-11-25 17:48:14,000 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:48:13" (1/1) ... [2022-11-25 17:48:14,024 INFO L138 Inliner]: procedures = 16, calls = 20, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 80 [2022-11-25 17:48:14,024 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:48:14,025 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:48:14,025 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:48:14,026 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:48:14,036 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:48:13" (1/1) ... [2022-11-25 17:48:14,037 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:48:13" (1/1) ... [2022-11-25 17:48:14,039 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:48:13" (1/1) ... [2022-11-25 17:48:14,039 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:48:13" (1/1) ... [2022-11-25 17:48:14,045 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:48:13" (1/1) ... [2022-11-25 17:48:14,049 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:48:13" (1/1) ... [2022-11-25 17:48:14,051 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:48:13" (1/1) ... [2022-11-25 17:48:14,052 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:48:13" (1/1) ... [2022-11-25 17:48:14,054 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:48:14,055 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:48:14,055 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:48:14,056 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:48:14,057 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:48:13" (1/1) ... [2022-11-25 17:48:14,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:48:14,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57a0f74a-9ed9-4a87-9798-a8b69ad97a53/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:48:14,106 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57a0f74a-9ed9-4a87-9798-a8b69ad97a53/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:48:14,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57a0f74a-9ed9-4a87-9798-a8b69ad97a53/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:48:14,164 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:48:14,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 17:48:14,164 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 17:48:14,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 17:48:14,166 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:48:14,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:48:14,168 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 17:48:14,168 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 17:48:14,273 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:48:14,275 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:48:14,433 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:48:14,441 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:48:14,441 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-25 17:48:14,444 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:48:14 BoogieIcfgContainer [2022-11-25 17:48:14,444 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:48:14,447 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:48:14,447 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:48:14,451 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:48:14,451 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:48:13" (1/3) ... [2022-11-25 17:48:14,452 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f6e5444 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:48:14, skipping insertion in model container [2022-11-25 17:48:14,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:48:13" (2/3) ... [2022-11-25 17:48:14,453 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f6e5444 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:48:14, skipping insertion in model container [2022-11-25 17:48:14,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:48:14" (3/3) ... [2022-11-25 17:48:14,454 INFO L112 eAbstractionObserver]: Analyzing ICFG standard_partition_ground-2.i [2022-11-25 17:48:14,479 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:48:14,495 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 17:48:14,559 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:48:14,568 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;@2b477fde, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:48:14,568 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 17:48:14,573 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 20 states have (on average 1.6) internal successors, (32), 21 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) [2022-11-25 17:48:14,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-25 17:48:14,580 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:48:14,581 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:48:14,581 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:48:14,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:48:14,587 INFO L85 PathProgramCache]: Analyzing trace with hash -700880873, now seen corresponding path program 1 times [2022-11-25 17:48:14,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:48:14,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605783122] [2022-11-25 17:48:14,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:48:14,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:48:14,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:48:14,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:48:14,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:48:14,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605783122] [2022-11-25 17:48:14,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605783122] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:48:14,904 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:48:14,904 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:48:14,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044001647] [2022-11-25 17:48:14,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:48:14,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:48:14,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:48:14,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:48:14,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:48:14,961 INFO L87 Difference]: Start difference. First operand has 22 states, 20 states have (on average 1.6) internal successors, (32), 21 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) Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2022-11-25 17:48:14,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:48:14,993 INFO L93 Difference]: Finished difference Result 42 states and 62 transitions. [2022-11-25 17:48:15,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:48:15,003 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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 10 [2022-11-25 17:48:15,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:48:15,011 INFO L225 Difference]: With dead ends: 42 [2022-11-25 17:48:15,012 INFO L226 Difference]: Without dead ends: 20 [2022-11-25 17:48:15,015 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:48:15,019 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 1 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:48:15,020 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 48 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:48:15,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-11-25 17:48:15,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2022-11-25 17:48:15,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 18 states have internal predecessors, (24), 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) [2022-11-25 17:48:15,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 24 transitions. [2022-11-25 17:48:15,055 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 24 transitions. Word has length 10 [2022-11-25 17:48:15,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:48:15,055 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 24 transitions. [2022-11-25 17:48:15,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2022-11-25 17:48:15,056 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2022-11-25 17:48:15,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-25 17:48:15,057 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:48:15,057 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:48:15,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 17:48:15,058 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:48:15,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:48:15,059 INFO L85 PathProgramCache]: Analyzing trace with hash 1756124227, now seen corresponding path program 1 times [2022-11-25 17:48:15,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:48:15,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883292133] [2022-11-25 17:48:15,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:48:15,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:48:15,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:48:15,185 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 17:48:15,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:48:15,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883292133] [2022-11-25 17:48:15,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883292133] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:48:15,187 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:48:15,187 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:48:15,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027173785] [2022-11-25 17:48:15,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:48:15,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:48:15,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:48:15,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:48:15,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:48:15,193 INFO L87 Difference]: Start difference. First operand 19 states and 24 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 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) [2022-11-25 17:48:15,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:48:15,250 INFO L93 Difference]: Finished difference Result 36 states and 47 transitions. [2022-11-25 17:48:15,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:48:15,251 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 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) Word has length 12 [2022-11-25 17:48:15,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:48:15,252 INFO L225 Difference]: With dead ends: 36 [2022-11-25 17:48:15,252 INFO L226 Difference]: Without dead ends: 25 [2022-11-25 17:48:15,253 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:48:15,254 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 6 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:48:15,255 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 27 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:48:15,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-11-25 17:48:15,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 21. [2022-11-25 17:48:15,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.3) internal successors, (26), 20 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) [2022-11-25 17:48:15,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 26 transitions. [2022-11-25 17:48:15,263 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 26 transitions. Word has length 12 [2022-11-25 17:48:15,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:48:15,263 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 26 transitions. [2022-11-25 17:48:15,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 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) [2022-11-25 17:48:15,264 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 26 transitions. [2022-11-25 17:48:15,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-25 17:48:15,265 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:48:15,265 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:48:15,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 17:48:15,266 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:48:15,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:48:15,267 INFO L85 PathProgramCache]: Analyzing trace with hash -1655857333, now seen corresponding path program 1 times [2022-11-25 17:48:15,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:48:15,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611816075] [2022-11-25 17:48:15,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:48:15,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:48:15,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:48:15,516 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 17:48:15,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:48:15,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611816075] [2022-11-25 17:48:15,517 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611816075] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:48:15,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1994429794] [2022-11-25 17:48:15,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:48:15,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:48:15,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57a0f74a-9ed9-4a87-9798-a8b69ad97a53/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:48:15,534 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57a0f74a-9ed9-4a87-9798-a8b69ad97a53/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:48:15,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57a0f74a-9ed9-4a87-9798-a8b69ad97a53/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 17:48:15,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:48:15,654 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 17:48:15,659 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:48:15,719 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 17:48:15,721 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:48:15,768 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 17:48:15,783 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1994429794] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:48:15,783 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:48:15,783 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-11-25 17:48:15,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853381063] [2022-11-25 17:48:15,784 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:48:15,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 17:48:15,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:48:15,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 17:48:15,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-25 17:48:15,786 INFO L87 Difference]: Start difference. First operand 21 states and 26 transitions. Second operand has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:48:15,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:48:15,832 INFO L93 Difference]: Finished difference Result 43 states and 55 transitions. [2022-11-25 17:48:15,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 17:48:15,833 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 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 18 [2022-11-25 17:48:15,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:48:15,833 INFO L225 Difference]: With dead ends: 43 [2022-11-25 17:48:15,834 INFO L226 Difference]: Without dead ends: 27 [2022-11-25 17:48:15,834 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-25 17:48:15,836 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 2 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:48:15,838 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 40 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:48:15,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-11-25 17:48:15,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-11-25 17:48:15,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.2307692307692308) internal successors, (32), 26 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) [2022-11-25 17:48:15,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 32 transitions. [2022-11-25 17:48:15,851 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 32 transitions. Word has length 18 [2022-11-25 17:48:15,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:48:15,852 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 32 transitions. [2022-11-25 17:48:15,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 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) [2022-11-25 17:48:15,852 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 32 transitions. [2022-11-25 17:48:15,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-25 17:48:15,854 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:48:15,855 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:48:15,867 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57a0f74a-9ed9-4a87-9798-a8b69ad97a53/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 17:48:16,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57a0f74a-9ed9-4a87-9798-a8b69ad97a53/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:48:16,060 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:48:16,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:48:16,061 INFO L85 PathProgramCache]: Analyzing trace with hash 1161822033, now seen corresponding path program 2 times [2022-11-25 17:48:16,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:48:16,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518768667] [2022-11-25 17:48:16,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:48:16,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:48:16,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:48:16,188 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-25 17:48:16,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:48:16,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518768667] [2022-11-25 17:48:16,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518768667] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:48:16,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [825801978] [2022-11-25 17:48:16,190 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 17:48:16,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:48:16,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57a0f74a-9ed9-4a87-9798-a8b69ad97a53/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:48:16,191 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57a0f74a-9ed9-4a87-9798-a8b69ad97a53/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:48:16,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57a0f74a-9ed9-4a87-9798-a8b69ad97a53/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 17:48:16,296 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 17:48:16,296 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:48:16,297 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-25 17:48:16,299 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:48:16,358 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 17:48:16,358 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:48:16,446 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 17:48:16,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [825801978] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:48:16,446 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:48:16,447 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 7, 7] total 14 [2022-11-25 17:48:16,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527165649] [2022-11-25 17:48:16,447 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:48:16,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-25 17:48:16,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:48:16,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-25 17:48:16,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2022-11-25 17:48:16,450 INFO L87 Difference]: Start difference. First operand 27 states and 32 transitions. Second operand has 14 states, 14 states have (on average 3.0) internal successors, (42), 14 states have internal predecessors, (42), 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) [2022-11-25 17:48:16,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:48:16,640 INFO L93 Difference]: Finished difference Result 65 states and 86 transitions. [2022-11-25 17:48:16,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 17:48:16,641 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.0) internal successors, (42), 14 states have internal predecessors, (42), 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 24 [2022-11-25 17:48:16,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:48:16,642 INFO L225 Difference]: With dead ends: 65 [2022-11-25 17:48:16,642 INFO L226 Difference]: Without dead ends: 49 [2022-11-25 17:48:16,643 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=211, Invalid=341, Unknown=0, NotChecked=0, Total=552 [2022-11-25 17:48:16,644 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 16 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:48:16,645 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 53 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:48:16,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-11-25 17:48:16,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 45. [2022-11-25 17:48:16,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 44 states have (on average 1.1818181818181819) internal successors, (52), 44 states have internal predecessors, (52), 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) [2022-11-25 17:48:16,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 52 transitions. [2022-11-25 17:48:16,653 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 52 transitions. Word has length 24 [2022-11-25 17:48:16,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:48:16,654 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 52 transitions. [2022-11-25 17:48:16,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.0) internal successors, (42), 14 states have internal predecessors, (42), 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) [2022-11-25 17:48:16,654 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 52 transitions. [2022-11-25 17:48:16,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-11-25 17:48:16,655 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:48:16,656 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:48:16,670 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57a0f74a-9ed9-4a87-9798-a8b69ad97a53/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 17:48:16,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57a0f74a-9ed9-4a87-9798-a8b69ad97a53/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:48:16,871 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:48:16,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:48:16,872 INFO L85 PathProgramCache]: Analyzing trace with hash 194818197, now seen corresponding path program 3 times [2022-11-25 17:48:16,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:48:16,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861901648] [2022-11-25 17:48:16,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:48:16,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:48:16,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:48:17,354 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-25 17:48:17,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:48:17,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861901648] [2022-11-25 17:48:17,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861901648] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:48:17,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [865337108] [2022-11-25 17:48:17,361 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-25 17:48:17,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:48:17,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57a0f74a-9ed9-4a87-9798-a8b69ad97a53/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:48:17,369 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57a0f74a-9ed9-4a87-9798-a8b69ad97a53/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:48:17,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57a0f74a-9ed9-4a87-9798-a8b69ad97a53/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 17:48:17,493 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-25 17:48:17,493 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:48:17,495 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 17:48:17,501 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:48:17,587 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-11-25 17:48:17,588 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:48:17,667 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-11-25 17:48:17,668 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [865337108] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:48:17,668 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:48:17,668 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 5, 5] total 19 [2022-11-25 17:48:17,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300139437] [2022-11-25 17:48:17,669 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:48:17,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-25 17:48:17,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:48:17,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-25 17:48:17,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=237, Unknown=0, NotChecked=0, Total=342 [2022-11-25 17:48:17,674 INFO L87 Difference]: Start difference. First operand 45 states and 52 transitions. Second operand has 19 states, 19 states have (on average 3.1578947368421053) internal successors, (60), 19 states have internal predecessors, (60), 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) [2022-11-25 17:48:18,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:48:18,030 INFO L93 Difference]: Finished difference Result 94 states and 124 transitions. [2022-11-25 17:48:18,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-25 17:48:18,034 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.1578947368421053) internal successors, (60), 19 states have internal predecessors, (60), 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 42 [2022-11-25 17:48:18,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:48:18,038 INFO L225 Difference]: With dead ends: 94 [2022-11-25 17:48:18,038 INFO L226 Difference]: Without dead ends: 72 [2022-11-25 17:48:18,039 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=314, Invalid=556, Unknown=0, NotChecked=0, Total=870 [2022-11-25 17:48:18,042 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 140 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:48:18,043 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 85 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:48:18,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2022-11-25 17:48:18,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 71. [2022-11-25 17:48:18,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 70 states have (on average 1.2285714285714286) internal successors, (86), 70 states have internal predecessors, (86), 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) [2022-11-25 17:48:18,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 86 transitions. [2022-11-25 17:48:18,074 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 86 transitions. Word has length 42 [2022-11-25 17:48:18,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:48:18,075 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 86 transitions. [2022-11-25 17:48:18,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.1578947368421053) internal successors, (60), 19 states have internal predecessors, (60), 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) [2022-11-25 17:48:18,076 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 86 transitions. [2022-11-25 17:48:18,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-11-25 17:48:18,081 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:48:18,082 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:48:18,094 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57a0f74a-9ed9-4a87-9798-a8b69ad97a53/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-25 17:48:18,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57a0f74a-9ed9-4a87-9798-a8b69ad97a53/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:48:18,295 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:48:18,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:48:18,296 INFO L85 PathProgramCache]: Analyzing trace with hash 515904919, now seen corresponding path program 4 times [2022-11-25 17:48:18,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:48:18,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052541060] [2022-11-25 17:48:18,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:48:18,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:48:18,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:48:18,648 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 0 proven. 121 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2022-11-25 17:48:18,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:48:18,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052541060] [2022-11-25 17:48:18,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052541060] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:48:18,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [241868612] [2022-11-25 17:48:18,652 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-25 17:48:18,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:48:18,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57a0f74a-9ed9-4a87-9798-a8b69ad97a53/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:48:18,655 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57a0f74a-9ed9-4a87-9798-a8b69ad97a53/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:48:18,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57a0f74a-9ed9-4a87-9798-a8b69ad97a53/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 17:48:18,795 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-25 17:48:18,796 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:48:18,799 INFO L263 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-25 17:48:18,805 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:48:18,876 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 0 proven. 121 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2022-11-25 17:48:18,876 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:48:19,214 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 0 proven. 121 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2022-11-25 17:48:19,214 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [241868612] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:48:19,215 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:48:19,215 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 27 [2022-11-25 17:48:19,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796625217] [2022-11-25 17:48:19,215 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:48:19,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-11-25 17:48:19,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:48:19,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-11-25 17:48:19,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=351, Invalid=351, Unknown=0, NotChecked=0, Total=702 [2022-11-25 17:48:19,217 INFO L87 Difference]: Start difference. First operand 71 states and 86 transitions. Second operand has 27 states, 27 states have (on average 2.4074074074074074) internal successors, (65), 27 states have internal predecessors, (65), 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) [2022-11-25 17:48:19,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:48:19,330 INFO L93 Difference]: Finished difference Result 143 states and 185 transitions. [2022-11-25 17:48:19,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-25 17:48:19,331 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 2.4074074074074074) internal successors, (65), 27 states have internal predecessors, (65), 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 68 [2022-11-25 17:48:19,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:48:19,332 INFO L225 Difference]: With dead ends: 143 [2022-11-25 17:48:19,333 INFO L226 Difference]: Without dead ends: 97 [2022-11-25 17:48:19,334 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=351, Invalid=351, Unknown=0, NotChecked=0, Total=702 [2022-11-25 17:48:19,334 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 2 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:48:19,335 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 135 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:48:19,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2022-11-25 17:48:19,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2022-11-25 17:48:19,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 96 states have (on average 1.1666666666666667) internal successors, (112), 96 states have internal predecessors, (112), 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) [2022-11-25 17:48:19,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 112 transitions. [2022-11-25 17:48:19,347 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 112 transitions. Word has length 68 [2022-11-25 17:48:19,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:48:19,347 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 112 transitions. [2022-11-25 17:48:19,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 2.4074074074074074) internal successors, (65), 27 states have internal predecessors, (65), 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) [2022-11-25 17:48:19,348 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 112 transitions. [2022-11-25 17:48:19,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-11-25 17:48:19,349 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:48:19,349 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:48:19,359 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57a0f74a-9ed9-4a87-9798-a8b69ad97a53/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-25 17:48:19,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57a0f74a-9ed9-4a87-9798-a8b69ad97a53/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:48:19,557 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:48:19,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:48:19,558 INFO L85 PathProgramCache]: Analyzing trace with hash 949453489, now seen corresponding path program 5 times [2022-11-25 17:48:19,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:48:19,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725355574] [2022-11-25 17:48:19,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:48:19,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:48:19,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:48:20,548 INFO L134 CoverageAnalysis]: Checked inductivity of 678 backedges. 0 proven. 576 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2022-11-25 17:48:20,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:48:20,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725355574] [2022-11-25 17:48:20,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725355574] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:48:20,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1057683539] [2022-11-25 17:48:20,549 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-25 17:48:20,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:48:20,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57a0f74a-9ed9-4a87-9798-a8b69ad97a53/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:48:20,550 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57a0f74a-9ed9-4a87-9798-a8b69ad97a53/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:48:20,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57a0f74a-9ed9-4a87-9798-a8b69ad97a53/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-25 17:48:26,887 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 25 check-sat command(s) [2022-11-25 17:48:26,887 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:48:26,901 INFO L263 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 26 conjunts are in the unsatisfiable core [2022-11-25 17:48:26,905 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:48:27,029 INFO L134 CoverageAnalysis]: Checked inductivity of 678 backedges. 0 proven. 576 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2022-11-25 17:48:27,030 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:48:28,136 INFO L134 CoverageAnalysis]: Checked inductivity of 678 backedges. 0 proven. 576 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2022-11-25 17:48:28,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1057683539] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:48:28,137 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:48:28,137 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27, 27] total 53 [2022-11-25 17:48:28,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669853021] [2022-11-25 17:48:28,137 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:48:28,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2022-11-25 17:48:28,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:48:28,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2022-11-25 17:48:28,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1378, Invalid=1378, Unknown=0, NotChecked=0, Total=2756 [2022-11-25 17:48:28,141 INFO L87 Difference]: Start difference. First operand 97 states and 112 transitions. Second operand has 53 states, 53 states have (on average 2.207547169811321) internal successors, (117), 53 states have internal predecessors, (117), 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) [2022-11-25 17:48:28,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:48:28,361 INFO L93 Difference]: Finished difference Result 195 states and 250 transitions. [2022-11-25 17:48:28,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-11-25 17:48:28,362 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 53 states have (on average 2.207547169811321) internal successors, (117), 53 states have internal predecessors, (117), 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 94 [2022-11-25 17:48:28,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:48:28,366 INFO L225 Difference]: With dead ends: 195 [2022-11-25 17:48:28,366 INFO L226 Difference]: Without dead ends: 149 [2022-11-25 17:48:28,367 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1378, Invalid=1378, Unknown=0, NotChecked=0, Total=2756 [2022-11-25 17:48:28,369 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 2 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 17:48:28,369 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 135 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 17:48:28,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2022-11-25 17:48:28,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2022-11-25 17:48:28,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 148 states have (on average 1.1081081081081081) internal successors, (164), 148 states have internal predecessors, (164), 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) [2022-11-25 17:48:28,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 164 transitions. [2022-11-25 17:48:28,403 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 164 transitions. Word has length 94 [2022-11-25 17:48:28,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:48:28,404 INFO L495 AbstractCegarLoop]: Abstraction has 149 states and 164 transitions. [2022-11-25 17:48:28,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 53 states have (on average 2.207547169811321) internal successors, (117), 53 states have internal predecessors, (117), 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) [2022-11-25 17:48:28,404 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 164 transitions. [2022-11-25 17:48:28,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-11-25 17:48:28,419 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:48:28,420 INFO L195 NwaCegarLoop]: trace histogram [50, 50, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:48:28,438 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57a0f74a-9ed9-4a87-9798-a8b69ad97a53/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-25 17:48:28,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57a0f74a-9ed9-4a87-9798-a8b69ad97a53/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-25 17:48:28,633 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:48:28,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:48:28,633 INFO L85 PathProgramCache]: Analyzing trace with hash 2079151973, now seen corresponding path program 6 times [2022-11-25 17:48:28,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:48:28,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277079178] [2022-11-25 17:48:28,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:48:28,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:48:28,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:48:31,727 INFO L134 CoverageAnalysis]: Checked inductivity of 2602 backedges. 0 proven. 2500 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2022-11-25 17:48:31,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:48:31,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277079178] [2022-11-25 17:48:31,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277079178] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:48:31,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1372654182] [2022-11-25 17:48:31,729 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-25 17:48:31,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:48:31,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57a0f74a-9ed9-4a87-9798-a8b69ad97a53/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:48:31,731 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57a0f74a-9ed9-4a87-9798-a8b69ad97a53/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:48:31,755 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57a0f74a-9ed9-4a87-9798-a8b69ad97a53/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-25 17:48:32,658 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 13 check-sat command(s) [2022-11-25 17:48:32,658 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:48:32,662 INFO L263 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-25 17:48:32,666 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:48:32,922 INFO L134 CoverageAnalysis]: Checked inductivity of 2602 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 2551 trivial. 0 not checked. [2022-11-25 17:48:32,923 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:48:33,207 INFO L134 CoverageAnalysis]: Checked inductivity of 2602 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 2551 trivial. 0 not checked. [2022-11-25 17:48:33,208 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1372654182] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:48:33,208 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:48:33,208 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [53, 9, 9] total 67 [2022-11-25 17:48:33,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876501417] [2022-11-25 17:48:33,208 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:48:33,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2022-11-25 17:48:33,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:48:33,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2022-11-25 17:48:33,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1497, Invalid=2925, Unknown=0, NotChecked=0, Total=4422 [2022-11-25 17:48:33,213 INFO L87 Difference]: Start difference. First operand 149 states and 164 transitions. Second operand has 67 states, 67 states have (on average 2.4477611940298507) internal successors, (164), 67 states have internal predecessors, (164), 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) [2022-11-25 17:48:35,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:48:35,249 INFO L93 Difference]: Finished difference Result 246 states and 308 transitions. [2022-11-25 17:48:35,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-11-25 17:48:35,250 INFO L78 Accepts]: Start accepts. Automaton has has 67 states, 67 states have (on average 2.4477611940298507) internal successors, (164), 67 states have internal predecessors, (164), 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 146 [2022-11-25 17:48:35,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:48:35,251 INFO L225 Difference]: With dead ends: 246 [2022-11-25 17:48:35,252 INFO L226 Difference]: Without dead ends: 200 [2022-11-25 17:48:35,257 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 394 GetRequests, 278 SyntacticMatches, 0 SemanticMatches, 116 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1975 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=4914, Invalid=8892, Unknown=0, NotChecked=0, Total=13806 [2022-11-25 17:48:35,258 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 379 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 379 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 17:48:35,258 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [379 Valid, 109 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 17:48:35,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2022-11-25 17:48:35,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 199. [2022-11-25 17:48:35,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 198 states have (on average 1.1616161616161615) internal successors, (230), 198 states have internal predecessors, (230), 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) [2022-11-25 17:48:35,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 230 transitions. [2022-11-25 17:48:35,273 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 230 transitions. Word has length 146 [2022-11-25 17:48:35,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:48:35,274 INFO L495 AbstractCegarLoop]: Abstraction has 199 states and 230 transitions. [2022-11-25 17:48:35,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 67 states have (on average 2.4477611940298507) internal successors, (164), 67 states have internal predecessors, (164), 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) [2022-11-25 17:48:35,274 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 230 transitions. [2022-11-25 17:48:35,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-11-25 17:48:35,276 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:48:35,277 INFO L195 NwaCegarLoop]: trace histogram [51, 51, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:48:35,296 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57a0f74a-9ed9-4a87-9798-a8b69ad97a53/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-25 17:48:35,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57a0f74a-9ed9-4a87-9798-a8b69ad97a53/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:48:35,497 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:48:35,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:48:35,498 INFO L85 PathProgramCache]: Analyzing trace with hash 1233622247, now seen corresponding path program 7 times [2022-11-25 17:48:35,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:48:35,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610649018] [2022-11-25 17:48:35,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:48:35,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:48:35,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:48:38,842 INFO L134 CoverageAnalysis]: Checked inductivity of 3175 backedges. 0 proven. 2601 refuted. 0 times theorem prover too weak. 574 trivial. 0 not checked. [2022-11-25 17:48:38,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:48:38,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610649018] [2022-11-25 17:48:38,843 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610649018] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:48:38,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [984321096] [2022-11-25 17:48:38,843 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-25 17:48:38,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:48:38,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57a0f74a-9ed9-4a87-9798-a8b69ad97a53/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:48:38,845 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57a0f74a-9ed9-4a87-9798-a8b69ad97a53/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:48:38,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57a0f74a-9ed9-4a87-9798-a8b69ad97a53/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-25 17:48:39,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:48:39,097 INFO L263 TraceCheckSpWp]: Trace formula consists of 781 conjuncts, 53 conjunts are in the unsatisfiable core [2022-11-25 17:48:39,101 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:48:39,394 INFO L134 CoverageAnalysis]: Checked inductivity of 3175 backedges. 0 proven. 2601 refuted. 0 times theorem prover too weak. 574 trivial. 0 not checked. [2022-11-25 17:48:39,395 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:48:43,241 INFO L134 CoverageAnalysis]: Checked inductivity of 3175 backedges. 0 proven. 2601 refuted. 0 times theorem prover too weak. 574 trivial. 0 not checked. [2022-11-25 17:48:43,241 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [984321096] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:48:43,241 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:48:43,241 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [54, 54, 54] total 107 [2022-11-25 17:48:43,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270642721] [2022-11-25 17:48:43,242 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:48:43,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 107 states [2022-11-25 17:48:43,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:48:43,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 107 interpolants. [2022-11-25 17:48:43,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5671, Invalid=5671, Unknown=0, NotChecked=0, Total=11342 [2022-11-25 17:48:43,249 INFO L87 Difference]: Start difference. First operand 199 states and 230 transitions. Second operand has 107 states, 107 states have (on average 2.102803738317757) internal successors, (225), 107 states have internal predecessors, (225), 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) [2022-11-25 17:48:43,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:48:43,669 INFO L93 Difference]: Finished difference Result 399 states and 513 transitions. [2022-11-25 17:48:43,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2022-11-25 17:48:43,670 INFO L78 Accepts]: Start accepts. Automaton has has 107 states, 107 states have (on average 2.102803738317757) internal successors, (225), 107 states have internal predecessors, (225), 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 196 [2022-11-25 17:48:43,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:48:43,671 INFO L225 Difference]: With dead ends: 399 [2022-11-25 17:48:43,671 INFO L226 Difference]: Without dead ends: 305 [2022-11-25 17:48:43,674 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 444 GetRequests, 339 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=5671, Invalid=5671, Unknown=0, NotChecked=0, Total=11342 [2022-11-25 17:48:43,675 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 2 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 17:48:43,676 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 97 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 17:48:43,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2022-11-25 17:48:43,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 305. [2022-11-25 17:48:43,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 304 states have (on average 1.105263157894737) internal successors, (336), 304 states have internal predecessors, (336), 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) [2022-11-25 17:48:43,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 336 transitions. [2022-11-25 17:48:43,692 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 336 transitions. Word has length 196 [2022-11-25 17:48:43,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:48:43,693 INFO L495 AbstractCegarLoop]: Abstraction has 305 states and 336 transitions. [2022-11-25 17:48:43,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 107 states, 107 states have (on average 2.102803738317757) internal successors, (225), 107 states have internal predecessors, (225), 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) [2022-11-25 17:48:43,694 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 336 transitions. [2022-11-25 17:48:43,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2022-11-25 17:48:43,698 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:48:43,698 INFO L195 NwaCegarLoop]: trace histogram [104, 104, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:48:43,710 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57a0f74a-9ed9-4a87-9798-a8b69ad97a53/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-11-25 17:48:43,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57a0f74a-9ed9-4a87-9798-a8b69ad97a53/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:48:43,905 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:48:43,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:48:43,905 INFO L85 PathProgramCache]: Analyzing trace with hash -2006247343, now seen corresponding path program 8 times [2022-11-25 17:48:43,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:48:43,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333794802] [2022-11-25 17:48:43,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:48:43,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:48:44,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:48:53,425 INFO L134 CoverageAnalysis]: Checked inductivity of 11390 backedges. 0 proven. 10816 refuted. 0 times theorem prover too weak. 574 trivial. 0 not checked. [2022-11-25 17:48:53,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:48:53,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333794802] [2022-11-25 17:48:53,426 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333794802] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:48:53,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1269349240] [2022-11-25 17:48:53,426 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 17:48:53,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:48:53,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57a0f74a-9ed9-4a87-9798-a8b69ad97a53/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:48:53,427 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57a0f74a-9ed9-4a87-9798-a8b69ad97a53/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:48:53,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57a0f74a-9ed9-4a87-9798-a8b69ad97a53/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-25 17:48:53,837 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 17:48:53,837 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:48:53,846 INFO L263 TraceCheckSpWp]: Trace formula consists of 1258 conjuncts, 106 conjunts are in the unsatisfiable core [2022-11-25 17:48:53,857 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:48:54,300 INFO L134 CoverageAnalysis]: Checked inductivity of 11390 backedges. 0 proven. 10816 refuted. 0 times theorem prover too weak. 574 trivial. 0 not checked. [2022-11-25 17:48:54,301 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:49:08,805 INFO L134 CoverageAnalysis]: Checked inductivity of 11390 backedges. 0 proven. 10816 refuted. 0 times theorem prover too weak. 574 trivial. 0 not checked. [2022-11-25 17:49:08,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1269349240] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:49:08,805 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:49:08,805 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [107, 107, 107] total 213 [2022-11-25 17:49:08,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35344801] [2022-11-25 17:49:08,806 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:49:08,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 213 states [2022-11-25 17:49:08,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:49:08,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 213 interpolants. [2022-11-25 17:49:08,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22578, Invalid=22578, Unknown=0, NotChecked=0, Total=45156 [2022-11-25 17:49:08,821 INFO L87 Difference]: Start difference. First operand 305 states and 336 transitions. Second operand has 213 states, 213 states have (on average 2.051643192488263) internal successors, (437), 213 states have internal predecessors, (437), 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) [2022-11-25 17:49:10,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:49:10,225 INFO L93 Difference]: Finished difference Result 611 states and 778 transitions. [2022-11-25 17:49:10,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 212 states. [2022-11-25 17:49:10,226 INFO L78 Accepts]: Start accepts. Automaton has has 213 states, 213 states have (on average 2.051643192488263) internal successors, (437), 213 states have internal predecessors, (437), 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 302 [2022-11-25 17:49:10,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:49:10,229 INFO L225 Difference]: With dead ends: 611 [2022-11-25 17:49:10,229 INFO L226 Difference]: Without dead ends: 517 [2022-11-25 17:49:10,234 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 709 GetRequests, 498 SyntacticMatches, 0 SemanticMatches, 211 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 416 ImplicationChecksByTransitivity, 18.8s TimeCoverageRelationStatistics Valid=22578, Invalid=22578, Unknown=0, NotChecked=0, Total=45156 [2022-11-25 17:49:10,235 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 2 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-25 17:49:10,235 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 116 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-25 17:49:10,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states. [2022-11-25 17:49:10,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 517. [2022-11-25 17:49:10,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 517 states, 516 states have (on average 1.062015503875969) internal successors, (548), 516 states have internal predecessors, (548), 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) [2022-11-25 17:49:10,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 548 transitions. [2022-11-25 17:49:10,260 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 548 transitions. Word has length 302 [2022-11-25 17:49:10,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:49:10,261 INFO L495 AbstractCegarLoop]: Abstraction has 517 states and 548 transitions. [2022-11-25 17:49:10,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 213 states, 213 states have (on average 2.051643192488263) internal successors, (437), 213 states have internal predecessors, (437), 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) [2022-11-25 17:49:10,262 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 548 transitions. [2022-11-25 17:49:10,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 515 [2022-11-25 17:49:10,274 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:49:10,274 INFO L195 NwaCegarLoop]: trace histogram [210, 210, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:49:10,307 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57a0f74a-9ed9-4a87-9798-a8b69ad97a53/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-11-25 17:49:10,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57a0f74a-9ed9-4a87-9798-a8b69ad97a53/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-25 17:49:10,507 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:49:10,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:49:10,508 INFO L85 PathProgramCache]: Analyzing trace with hash 1109860773, now seen corresponding path program 9 times [2022-11-25 17:49:10,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:49:10,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670381876] [2022-11-25 17:49:10,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:49:10,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:49:10,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:49:43,169 INFO L134 CoverageAnalysis]: Checked inductivity of 44674 backedges. 0 proven. 44100 refuted. 0 times theorem prover too weak. 574 trivial. 0 not checked. [2022-11-25 17:49:43,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:49:43,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670381876] [2022-11-25 17:49:43,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670381876] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:49:43,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [515083526] [2022-11-25 17:49:43,170 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-25 17:49:43,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:49:43,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57a0f74a-9ed9-4a87-9798-a8b69ad97a53/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:49:43,179 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57a0f74a-9ed9-4a87-9798-a8b69ad97a53/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:49:43,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57a0f74a-9ed9-4a87-9798-a8b69ad97a53/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-25 17:49:47,909 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2022-11-25 17:49:47,909 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:49:47,919 INFO L263 TraceCheckSpWp]: Trace formula consists of 448 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-25 17:49:47,927 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:49:49,488 INFO L134 CoverageAnalysis]: Checked inductivity of 44674 backedges. 0 proven. 287 refuted. 0 times theorem prover too weak. 44387 trivial. 0 not checked. [2022-11-25 17:49:49,488 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:49:51,304 INFO L134 CoverageAnalysis]: Checked inductivity of 44674 backedges. 0 proven. 287 refuted. 0 times theorem prover too weak. 44387 trivial. 0 not checked. [2022-11-25 17:49:51,304 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [515083526] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:49:51,304 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:49:51,305 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [213, 17, 17] total 243 [2022-11-25 17:49:51,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273221583] [2022-11-25 17:49:51,305 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:49:51,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 243 states [2022-11-25 17:49:51,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:49:51,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 243 interpolants. [2022-11-25 17:49:51,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23073, Invalid=35733, Unknown=0, NotChecked=0, Total=58806 [2022-11-25 17:49:51,321 INFO L87 Difference]: Start difference. First operand 517 states and 548 transitions. Second operand has 243 states, 243 states have (on average 2.1893004115226335) internal successors, (532), 243 states have internal predecessors, (532), 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) [2022-11-25 17:50:17,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:50:17,472 INFO L93 Difference]: Finished difference Result 710 states and 836 transitions. [2022-11-25 17:50:17,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 243 states. [2022-11-25 17:50:17,473 INFO L78 Accepts]: Start accepts. Automaton has has 243 states, 243 states have (on average 2.1893004115226335) internal successors, (532), 243 states have internal predecessors, (532), 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 514 [2022-11-25 17:50:17,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:50:17,480 INFO L225 Difference]: With dead ends: 710 [2022-11-25 17:50:17,481 INFO L226 Difference]: Without dead ends: 616 [2022-11-25 17:50:17,496 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1450 GetRequests, 998 SyntacticMatches, 0 SemanticMatches, 452 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28455 ImplicationChecksByTransitivity, 43.6s TimeCoverageRelationStatistics Valid=74346, Invalid=131316, Unknown=0, NotChecked=0, Total=205662 [2022-11-25 17:50:17,497 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 2085 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 663 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2085 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-25 17:50:17,497 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2085 Valid, 196 Invalid, 777 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 663 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-25 17:50:17,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2022-11-25 17:50:17,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 615. [2022-11-25 17:50:17,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 615 states, 614 states have (on average 1.1042345276872965) internal successors, (678), 614 states have internal predecessors, (678), 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) [2022-11-25 17:50:17,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 678 transitions. [2022-11-25 17:50:17,528 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 678 transitions. Word has length 514 [2022-11-25 17:50:17,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:50:17,529 INFO L495 AbstractCegarLoop]: Abstraction has 615 states and 678 transitions. [2022-11-25 17:50:17,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 243 states, 243 states have (on average 2.1893004115226335) internal successors, (532), 243 states have internal predecessors, (532), 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) [2022-11-25 17:50:17,530 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 678 transitions. [2022-11-25 17:50:17,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 613 [2022-11-25 17:50:17,546 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:50:17,547 INFO L195 NwaCegarLoop]: trace histogram [211, 211, 30, 30, 30, 30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:50:17,567 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57a0f74a-9ed9-4a87-9798-a8b69ad97a53/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-25 17:50:17,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57a0f74a-9ed9-4a87-9798-a8b69ad97a53/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-25 17:50:17,757 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:50:17,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:50:17,758 INFO L85 PathProgramCache]: Analyzing trace with hash 1095157799, now seen corresponding path program 10 times [2022-11-25 17:50:17,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:50:17,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292646666] [2022-11-25 17:50:17,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:50:17,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:50:18,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:50:52,648 INFO L134 CoverageAnalysis]: Checked inductivity of 47191 backedges. 0 proven. 44521 refuted. 0 times theorem prover too weak. 2670 trivial. 0 not checked. [2022-11-25 17:50:52,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:50:52,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292646666] [2022-11-25 17:50:52,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292646666] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:50:52,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1121341569] [2022-11-25 17:50:52,649 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-25 17:50:52,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:50:52,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57a0f74a-9ed9-4a87-9798-a8b69ad97a53/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:50:52,650 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57a0f74a-9ed9-4a87-9798-a8b69ad97a53/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:50:52,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57a0f74a-9ed9-4a87-9798-a8b69ad97a53/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-25 17:51:02,866 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-25 17:51:02,867 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:51:02,900 INFO L263 TraceCheckSpWp]: Trace formula consists of 2509 conjuncts, 213 conjunts are in the unsatisfiable core [2022-11-25 17:51:02,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:51:03,764 INFO L134 CoverageAnalysis]: Checked inductivity of 47191 backedges. 0 proven. 44521 refuted. 0 times theorem prover too weak. 2670 trivial. 0 not checked. [2022-11-25 17:51:03,765 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:52:01,538 INFO L134 CoverageAnalysis]: Checked inductivity of 47191 backedges. 0 proven. 44521 refuted. 0 times theorem prover too weak. 2670 trivial. 0 not checked. [2022-11-25 17:52:01,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1121341569] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:52:01,539 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:52:01,539 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [214, 214, 214] total 427 [2022-11-25 17:52:01,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108300113] [2022-11-25 17:52:01,539 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:52:01,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 427 states [2022-11-25 17:52:01,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:52:01,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 427 interpolants. [2022-11-25 17:52:01,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90951, Invalid=90951, Unknown=0, NotChecked=0, Total=181902 [2022-11-25 17:52:01,568 INFO L87 Difference]: Start difference. First operand 615 states and 678 transitions. Second operand has 427 states, 427 states have (on average 2.0257611241217797) internal successors, (865), 427 states have internal predecessors, (865), 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) [2022-11-25 17:52:08,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:52:08,673 INFO L93 Difference]: Finished difference Result 1231 states and 1569 transitions. [2022-11-25 17:52:08,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 426 states. [2022-11-25 17:52:08,675 INFO L78 Accepts]: Start accepts. Automaton has has 427 states, 427 states have (on average 2.0257611241217797) internal successors, (865), 427 states have internal predecessors, (865), 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 612 [2022-11-25 17:52:08,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:52:08,679 INFO L225 Difference]: With dead ends: 1231 [2022-11-25 17:52:08,680 INFO L226 Difference]: Without dead ends: 1041 [2022-11-25 17:52:08,689 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1436 GetRequests, 1011 SyntacticMatches, 0 SemanticMatches, 425 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 844 ImplicationChecksByTransitivity, 75.6s TimeCoverageRelationStatistics Valid=90951, Invalid=90951, Unknown=0, NotChecked=0, Total=181902 [2022-11-25 17:52:08,690 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 2 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 856 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 858 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 856 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-25 17:52:08,690 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 154 Invalid, 858 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 856 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-25 17:52:08,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1041 states. [2022-11-25 17:52:08,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1041 to 1041. [2022-11-25 17:52:08,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1041 states, 1040 states have (on average 1.0615384615384615) internal successors, (1104), 1040 states have internal predecessors, (1104), 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) [2022-11-25 17:52:08,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1041 states to 1041 states and 1104 transitions. [2022-11-25 17:52:08,729 INFO L78 Accepts]: Start accepts. Automaton has 1041 states and 1104 transitions. Word has length 612 [2022-11-25 17:52:08,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:52:08,730 INFO L495 AbstractCegarLoop]: Abstraction has 1041 states and 1104 transitions. [2022-11-25 17:52:08,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 427 states, 427 states have (on average 2.0257611241217797) internal successors, (865), 427 states have internal predecessors, (865), 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) [2022-11-25 17:52:08,732 INFO L276 IsEmpty]: Start isEmpty. Operand 1041 states and 1104 transitions. [2022-11-25 17:52:08,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1039 [2022-11-25 17:52:08,741 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:52:08,741 INFO L195 NwaCegarLoop]: trace histogram [424, 424, 30, 30, 30, 30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:52:08,753 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57a0f74a-9ed9-4a87-9798-a8b69ad97a53/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-25 17:52:08,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57a0f74a-9ed9-4a87-9798-a8b69ad97a53/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-25 17:52:08,942 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:52:08,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:52:08,942 INFO L85 PathProgramCache]: Analyzing trace with hash -40706863, now seen corresponding path program 11 times [2022-11-25 17:52:08,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:52:08,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003456051] [2022-11-25 17:52:08,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:52:08,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:52:10,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:52,578 INFO L134 CoverageAnalysis]: Checked inductivity of 182446 backedges. 0 proven. 179776 refuted. 0 times theorem prover too weak. 2670 trivial. 0 not checked. [2022-11-25 17:54:52,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:54:52,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003456051] [2022-11-25 17:54:52,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003456051] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:54:52,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1632962011] [2022-11-25 17:54:52,579 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-25 17:54:52,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:54:52,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57a0f74a-9ed9-4a87-9798-a8b69ad97a53/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:54:52,582 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57a0f74a-9ed9-4a87-9798-a8b69ad97a53/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:54:52,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57a0f74a-9ed9-4a87-9798-a8b69ad97a53/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process