./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product50.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40a39deb-edc9-4df7-a29e-dca71d8755d4/bin/uautomizer-tBqnrhUYjU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40a39deb-edc9-4df7-a29e-dca71d8755d4/bin/uautomizer-tBqnrhUYjU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40a39deb-edc9-4df7-a29e-dca71d8755d4/bin/uautomizer-tBqnrhUYjU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40a39deb-edc9-4df7-a29e-dca71d8755d4/bin/uautomizer-tBqnrhUYjU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product50.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40a39deb-edc9-4df7-a29e-dca71d8755d4/bin/uautomizer-tBqnrhUYjU/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40a39deb-edc9-4df7-a29e-dca71d8755d4/bin/uautomizer-tBqnrhUYjU --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 d44823aac48cec2911f68e219166f3ac1836e56b97e3a905bce4580d699376f2 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-02 22:37:50,776 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-02 22:37:50,779 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-02 22:37:50,849 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-02 22:37:50,850 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-02 22:37:50,856 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-02 22:37:50,861 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-02 22:37:50,867 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-02 22:37:50,871 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-02 22:37:50,881 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-02 22:37:50,883 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-02 22:37:50,885 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-02 22:37:50,886 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-02 22:37:50,890 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-02 22:37:50,894 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-02 22:37:50,897 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-02 22:37:50,899 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-02 22:37:50,901 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-02 22:37:50,908 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-02 22:37:50,918 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-02 22:37:50,923 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-02 22:37:50,925 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-02 22:37:50,929 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-02 22:37:50,930 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-02 22:37:50,937 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-02 22:37:50,937 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-02 22:37:50,938 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-02 22:37:50,941 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-02 22:37:50,942 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-02 22:37:50,944 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-02 22:37:50,944 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-02 22:37:50,946 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-02 22:37:50,948 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-02 22:37:50,950 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-02 22:37:50,952 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-02 22:37:50,953 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-02 22:37:50,954 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-02 22:37:50,954 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-02 22:37:50,954 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-02 22:37:50,956 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-02 22:37:50,957 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-02 22:37:50,958 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40a39deb-edc9-4df7-a29e-dca71d8755d4/bin/uautomizer-tBqnrhUYjU/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-02 22:37:51,017 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-02 22:37:51,018 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-02 22:37:51,019 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-02 22:37:51,019 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-02 22:37:51,021 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-02 22:37:51,021 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-02 22:37:51,022 INFO L138 SettingsManager]: * Use SBE=true [2021-11-02 22:37:51,022 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-02 22:37:51,022 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-02 22:37:51,023 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-02 22:37:51,024 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-02 22:37:51,025 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-02 22:37:51,025 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-02 22:37:51,025 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-02 22:37:51,025 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-02 22:37:51,026 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-02 22:37:51,026 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-02 22:37:51,026 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-02 22:37:51,027 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-02 22:37:51,027 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-02 22:37:51,027 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-02 22:37:51,028 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-02 22:37:51,028 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 22:37:51,028 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-02 22:37:51,029 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-02 22:37:51,029 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-02 22:37:51,029 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-02 22:37:51,029 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-02 22:37:51,030 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-02 22:37:51,032 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-02 22:37:51,032 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-02 22:37:51,032 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-02 22:37:51,033 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40a39deb-edc9-4df7-a29e-dca71d8755d4/bin/uautomizer-tBqnrhUYjU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40a39deb-edc9-4df7-a29e-dca71d8755d4/bin/uautomizer-tBqnrhUYjU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d44823aac48cec2911f68e219166f3ac1836e56b97e3a905bce4580d699376f2 [2021-11-02 22:37:51,369 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-02 22:37:51,396 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-02 22:37:51,400 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-02 22:37:51,401 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-02 22:37:51,403 INFO L275 PluginConnector]: CDTParser initialized [2021-11-02 22:37:51,404 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40a39deb-edc9-4df7-a29e-dca71d8755d4/bin/uautomizer-tBqnrhUYjU/../../sv-benchmarks/c/product-lines/minepump_spec4_product50.cil.c [2021-11-02 22:37:51,483 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40a39deb-edc9-4df7-a29e-dca71d8755d4/bin/uautomizer-tBqnrhUYjU/data/18defea1a/5120970ad65a4661a972a0f99ea3047d/FLAG41a9561e1 [2021-11-02 22:37:52,088 INFO L306 CDTParser]: Found 1 translation units. [2021-11-02 22:37:52,088 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40a39deb-edc9-4df7-a29e-dca71d8755d4/sv-benchmarks/c/product-lines/minepump_spec4_product50.cil.c [2021-11-02 22:37:52,120 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40a39deb-edc9-4df7-a29e-dca71d8755d4/bin/uautomizer-tBqnrhUYjU/data/18defea1a/5120970ad65a4661a972a0f99ea3047d/FLAG41a9561e1 [2021-11-02 22:37:52,345 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40a39deb-edc9-4df7-a29e-dca71d8755d4/bin/uautomizer-tBqnrhUYjU/data/18defea1a/5120970ad65a4661a972a0f99ea3047d [2021-11-02 22:37:52,348 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-02 22:37:52,350 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-02 22:37:52,352 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-02 22:37:52,353 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-02 22:37:52,357 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-02 22:37:52,358 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:37:52" (1/1) ... [2021-11-02 22:37:52,360 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64619e10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:37:52, skipping insertion in model container [2021-11-02 22:37:52,360 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:37:52" (1/1) ... [2021-11-02 22:37:52,369 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-02 22:37:52,437 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-02 22:37:52,826 WARN L228 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_40a39deb-edc9-4df7-a29e-dca71d8755d4/sv-benchmarks/c/product-lines/minepump_spec4_product50.cil.c[13010,13023] [2021-11-02 22:37:52,869 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 22:37:52,887 INFO L203 MainTranslator]: Completed pre-run [2021-11-02 22:37:52,948 WARN L228 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_40a39deb-edc9-4df7-a29e-dca71d8755d4/sv-benchmarks/c/product-lines/minepump_spec4_product50.cil.c[13010,13023] [2021-11-02 22:37:52,997 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 22:37:53,030 INFO L208 MainTranslator]: Completed translation [2021-11-02 22:37:53,031 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:37:53 WrapperNode [2021-11-02 22:37:53,031 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-02 22:37:53,032 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-02 22:37:53,033 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-02 22:37:53,033 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-02 22:37:53,047 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:37:53" (1/1) ... [2021-11-02 22:37:53,093 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:37:53" (1/1) ... [2021-11-02 22:37:53,202 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-02 22:37:53,203 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-02 22:37:53,203 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-02 22:37:53,204 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-02 22:37:53,227 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:37:53" (1/1) ... [2021-11-02 22:37:53,228 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:37:53" (1/1) ... [2021-11-02 22:37:53,243 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:37:53" (1/1) ... [2021-11-02 22:37:53,243 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:37:53" (1/1) ... [2021-11-02 22:37:53,260 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:37:53" (1/1) ... [2021-11-02 22:37:53,268 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:37:53" (1/1) ... [2021-11-02 22:37:53,273 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:37:53" (1/1) ... [2021-11-02 22:37:53,280 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-02 22:37:53,281 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-02 22:37:53,281 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-02 22:37:53,282 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-02 22:37:53,296 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:37:53" (1/1) ... [2021-11-02 22:37:53,319 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 22:37:53,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40a39deb-edc9-4df7-a29e-dca71d8755d4/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:37:53,372 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40a39deb-edc9-4df7-a29e-dca71d8755d4/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-02 22:37:53,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40a39deb-edc9-4df7-a29e-dca71d8755d4/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-02 22:37:53,445 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-02 22:37:53,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-02 22:37:53,445 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-02 22:37:53,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-02 22:37:54,687 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-02 22:37:54,688 INFO L299 CfgBuilder]: Removed 158 assume(true) statements. [2021-11-02 22:37:54,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:37:54 BoogieIcfgContainer [2021-11-02 22:37:54,692 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-02 22:37:54,694 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-02 22:37:54,694 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-02 22:37:54,698 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-02 22:37:54,700 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 10:37:52" (1/3) ... [2021-11-02 22:37:54,701 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d0e6c7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 10:37:54, skipping insertion in model container [2021-11-02 22:37:54,702 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:37:53" (2/3) ... [2021-11-02 22:37:54,702 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d0e6c7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 10:37:54, skipping insertion in model container [2021-11-02 22:37:54,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:37:54" (3/3) ... [2021-11-02 22:37:54,705 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product50.cil.c [2021-11-02 22:37:54,719 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-02 22:37:54,719 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-02 22:37:54,799 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-02 22:37:54,807 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-02 22:37:54,808 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-02 22:37:54,837 INFO L276 IsEmpty]: Start isEmpty. Operand has 117 states, 113 states have (on average 1.5663716814159292) internal successors, (177), 116 states have internal predecessors, (177), 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) [2021-11-02 22:37:54,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-02 22:37:54,845 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:37:54,846 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:37:54,847 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 22:37:54,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:37:54,854 INFO L85 PathProgramCache]: Analyzing trace with hash -1800894747, now seen corresponding path program 1 times [2021-11-02 22:37:54,866 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:37:54,867 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434291444] [2021-11-02 22:37:54,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:37:54,868 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:37:55,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:37:55,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:37:55,211 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:37:55,211 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434291444] [2021-11-02 22:37:55,212 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434291444] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:37:55,213 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:37:55,213 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-02 22:37:55,224 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24805145] [2021-11-02 22:37:55,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-02 22:37:55,234 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:37:55,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-02 22:37:55,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-02 22:37:55,264 INFO L87 Difference]: Start difference. First operand has 117 states, 113 states have (on average 1.5663716814159292) internal successors, (177), 116 states have internal predecessors, (177), 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 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 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) [2021-11-02 22:37:55,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:37:55,309 INFO L93 Difference]: Finished difference Result 228 states and 347 transitions. [2021-11-02 22:37:55,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-02 22:37:55,310 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 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 16 [2021-11-02 22:37:55,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:37:55,324 INFO L225 Difference]: With dead ends: 228 [2021-11-02 22:37:55,325 INFO L226 Difference]: Without dead ends: 113 [2021-11-02 22:37:55,329 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-02 22:37:55,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2021-11-02 22:37:55,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2021-11-02 22:37:55,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 110 states have (on average 1.5) internal successors, (165), 112 states have internal predecessors, (165), 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) [2021-11-02 22:37:55,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 165 transitions. [2021-11-02 22:37:55,384 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 165 transitions. Word has length 16 [2021-11-02 22:37:55,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:37:55,385 INFO L470 AbstractCegarLoop]: Abstraction has 113 states and 165 transitions. [2021-11-02 22:37:55,385 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 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) [2021-11-02 22:37:55,385 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 165 transitions. [2021-11-02 22:37:55,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-02 22:37:55,387 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:37:55,387 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:37:55,387 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-02 22:37:55,388 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 22:37:55,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:37:55,389 INFO L85 PathProgramCache]: Analyzing trace with hash 1447315652, now seen corresponding path program 1 times [2021-11-02 22:37:55,389 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:37:55,390 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588247690] [2021-11-02 22:37:55,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:37:55,390 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:37:55,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:37:55,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:37:55,574 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:37:55,574 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588247690] [2021-11-02 22:37:55,575 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588247690] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:37:55,575 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:37:55,575 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 22:37:55,575 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203973559] [2021-11-02 22:37:55,577 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 22:37:55,577 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:37:55,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 22:37:55,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:37:55,579 INFO L87 Difference]: Start difference. First operand 113 states and 165 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2021-11-02 22:37:55,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:37:55,595 INFO L93 Difference]: Finished difference Result 113 states and 165 transitions. [2021-11-02 22:37:55,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 22:37:55,596 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-11-02 22:37:55,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:37:55,597 INFO L225 Difference]: With dead ends: 113 [2021-11-02 22:37:55,598 INFO L226 Difference]: Without dead ends: 47 [2021-11-02 22:37:55,599 INFO L786 BasicCegarLoop]: 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 [2021-11-02 22:37:55,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-11-02 22:37:55,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2021-11-02 22:37:55,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 46 states have (on average 1.4782608695652173) internal successors, (68), 46 states have internal predecessors, (68), 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) [2021-11-02 22:37:55,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 68 transitions. [2021-11-02 22:37:55,607 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 68 transitions. Word has length 17 [2021-11-02 22:37:55,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:37:55,607 INFO L470 AbstractCegarLoop]: Abstraction has 47 states and 68 transitions. [2021-11-02 22:37:55,608 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2021-11-02 22:37:55,608 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 68 transitions. [2021-11-02 22:37:55,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-02 22:37:55,609 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:37:55,609 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:37:55,610 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-02 22:37:55,610 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 22:37:55,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:37:55,611 INFO L85 PathProgramCache]: Analyzing trace with hash -230586389, now seen corresponding path program 1 times [2021-11-02 22:37:55,611 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:37:55,611 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130212065] [2021-11-02 22:37:55,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:37:55,612 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:37:55,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:37:55,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:37:55,741 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:37:55,742 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130212065] [2021-11-02 22:37:55,742 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130212065] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:37:55,742 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:37:55,743 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 22:37:55,743 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841120379] [2021-11-02 22:37:55,744 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 22:37:55,744 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:37:55,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 22:37:55,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:37:55,745 INFO L87 Difference]: Start difference. First operand 47 states and 68 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2021-11-02 22:37:55,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:37:55,791 INFO L93 Difference]: Finished difference Result 88 states and 130 transitions. [2021-11-02 22:37:55,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 22:37:55,800 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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 22 [2021-11-02 22:37:55,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:37:55,801 INFO L225 Difference]: With dead ends: 88 [2021-11-02 22:37:55,801 INFO L226 Difference]: Without dead ends: 47 [2021-11-02 22:37:55,802 INFO L786 BasicCegarLoop]: 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 [2021-11-02 22:37:55,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-11-02 22:37:55,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2021-11-02 22:37:55,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 46 states have (on average 1.4565217391304348) internal successors, (67), 46 states have internal predecessors, (67), 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) [2021-11-02 22:37:55,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 67 transitions. [2021-11-02 22:37:55,810 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 67 transitions. Word has length 22 [2021-11-02 22:37:55,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:37:55,810 INFO L470 AbstractCegarLoop]: Abstraction has 47 states and 67 transitions. [2021-11-02 22:37:55,811 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2021-11-02 22:37:55,811 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 67 transitions. [2021-11-02 22:37:55,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-02 22:37:55,813 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:37:55,813 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:37:55,813 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-02 22:37:55,814 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 22:37:55,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:37:55,814 INFO L85 PathProgramCache]: Analyzing trace with hash -108421843, now seen corresponding path program 1 times [2021-11-02 22:37:55,815 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:37:55,823 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103607942] [2021-11-02 22:37:55,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:37:55,824 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:37:55,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:37:55,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:37:55,987 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:37:55,987 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103607942] [2021-11-02 22:37:55,988 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103607942] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:37:55,988 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:37:55,988 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-02 22:37:55,989 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117548668] [2021-11-02 22:37:55,989 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 22:37:55,989 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:37:55,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 22:37:55,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:37:55,990 INFO L87 Difference]: Start difference. First operand 47 states and 67 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 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) [2021-11-02 22:37:56,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:37:56,028 INFO L93 Difference]: Finished difference Result 109 states and 158 transitions. [2021-11-02 22:37:56,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 22:37:56,029 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 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) Word has length 24 [2021-11-02 22:37:56,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:37:56,030 INFO L225 Difference]: With dead ends: 109 [2021-11-02 22:37:56,030 INFO L226 Difference]: Without dead ends: 68 [2021-11-02 22:37:56,031 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:37:56,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2021-11-02 22:37:56,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 66. [2021-11-02 22:37:56,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 65 states have (on average 1.4307692307692308) internal successors, (93), 65 states have internal predecessors, (93), 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) [2021-11-02 22:37:56,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 93 transitions. [2021-11-02 22:37:56,042 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 93 transitions. Word has length 24 [2021-11-02 22:37:56,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:37:56,042 INFO L470 AbstractCegarLoop]: Abstraction has 66 states and 93 transitions. [2021-11-02 22:37:56,043 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 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) [2021-11-02 22:37:56,043 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 93 transitions. [2021-11-02 22:37:56,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-02 22:37:56,044 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:37:56,044 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:37:56,045 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-02 22:37:56,045 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 22:37:56,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:37:56,046 INFO L85 PathProgramCache]: Analyzing trace with hash -1619186466, now seen corresponding path program 1 times [2021-11-02 22:37:56,046 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:37:56,047 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542336463] [2021-11-02 22:37:56,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:37:56,047 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:37:56,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:37:56,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:37:56,182 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:37:56,182 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542336463] [2021-11-02 22:37:56,182 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542336463] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:37:56,182 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:37:56,183 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-02 22:37:56,183 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073540368] [2021-11-02 22:37:56,185 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-02 22:37:56,185 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:37:56,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-02 22:37:56,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-02 22:37:56,188 INFO L87 Difference]: Start difference. First operand 66 states and 93 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 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) [2021-11-02 22:37:56,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:37:56,326 INFO L93 Difference]: Finished difference Result 175 states and 245 transitions. [2021-11-02 22:37:56,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-02 22:37:56,327 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 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 30 [2021-11-02 22:37:56,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:37:56,330 INFO L225 Difference]: With dead ends: 175 [2021-11-02 22:37:56,333 INFO L226 Difference]: Without dead ends: 115 [2021-11-02 22:37:56,334 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-02 22:37:56,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2021-11-02 22:37:56,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 72. [2021-11-02 22:37:56,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 71 states have (on average 1.3943661971830985) internal successors, (99), 71 states have internal predecessors, (99), 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) [2021-11-02 22:37:56,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 99 transitions. [2021-11-02 22:37:56,355 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 99 transitions. Word has length 30 [2021-11-02 22:37:56,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:37:56,356 INFO L470 AbstractCegarLoop]: Abstraction has 72 states and 99 transitions. [2021-11-02 22:37:56,358 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 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) [2021-11-02 22:37:56,358 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 99 transitions. [2021-11-02 22:37:56,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-02 22:37:56,365 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:37:56,366 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:37:56,366 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-02 22:37:56,366 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 22:37:56,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:37:56,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1043324577, now seen corresponding path program 1 times [2021-11-02 22:37:56,368 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:37:56,368 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756984322] [2021-11-02 22:37:56,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:37:56,369 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:37:56,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:37:56,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:37:56,495 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:37:56,495 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756984322] [2021-11-02 22:37:56,495 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756984322] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:37:56,496 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:37:56,496 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-02 22:37:56,497 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126047148] [2021-11-02 22:37:56,499 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-02 22:37:56,504 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:37:56,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-02 22:37:56,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-02 22:37:56,506 INFO L87 Difference]: Start difference. First operand 72 states and 99 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 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) [2021-11-02 22:37:56,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:37:56,636 INFO L93 Difference]: Finished difference Result 253 states and 355 transitions. [2021-11-02 22:37:56,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-02 22:37:56,638 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 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 30 [2021-11-02 22:37:56,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:37:56,651 INFO L225 Difference]: With dead ends: 253 [2021-11-02 22:37:56,651 INFO L226 Difference]: Without dead ends: 187 [2021-11-02 22:37:56,654 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-02 22:37:56,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2021-11-02 22:37:56,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 115. [2021-11-02 22:37:56,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 114 states have (on average 1.3596491228070176) internal successors, (155), 114 states have internal predecessors, (155), 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) [2021-11-02 22:37:56,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 155 transitions. [2021-11-02 22:37:56,684 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 155 transitions. Word has length 30 [2021-11-02 22:37:56,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:37:56,685 INFO L470 AbstractCegarLoop]: Abstraction has 115 states and 155 transitions. [2021-11-02 22:37:56,685 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 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) [2021-11-02 22:37:56,686 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 155 transitions. [2021-11-02 22:37:56,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-02 22:37:56,691 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:37:56,691 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:37:56,691 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-02 22:37:56,692 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 22:37:56,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:37:56,692 INFO L85 PathProgramCache]: Analyzing trace with hash -964491617, now seen corresponding path program 1 times [2021-11-02 22:37:56,693 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:37:56,698 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121251603] [2021-11-02 22:37:56,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:37:56,699 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:37:56,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:37:56,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:37:56,784 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:37:56,785 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121251603] [2021-11-02 22:37:56,785 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121251603] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:37:56,786 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:37:56,786 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 22:37:56,787 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760762665] [2021-11-02 22:37:56,787 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-02 22:37:56,787 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:37:56,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-02 22:37:56,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-02 22:37:56,789 INFO L87 Difference]: Start difference. First operand 115 states and 155 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 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) [2021-11-02 22:37:56,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:37:56,972 INFO L93 Difference]: Finished difference Result 238 states and 327 transitions. [2021-11-02 22:37:56,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-02 22:37:56,972 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 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 31 [2021-11-02 22:37:56,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:37:56,976 INFO L225 Difference]: With dead ends: 238 [2021-11-02 22:37:56,977 INFO L226 Difference]: Without dead ends: 172 [2021-11-02 22:37:56,978 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-02 22:37:56,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2021-11-02 22:37:57,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 169. [2021-11-02 22:37:57,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 168 states have (on average 1.3571428571428572) internal successors, (228), 168 states have internal predecessors, (228), 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) [2021-11-02 22:37:57,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 228 transitions. [2021-11-02 22:37:57,019 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 228 transitions. Word has length 31 [2021-11-02 22:37:57,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:37:57,020 INFO L470 AbstractCegarLoop]: Abstraction has 169 states and 228 transitions. [2021-11-02 22:37:57,020 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 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) [2021-11-02 22:37:57,020 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 228 transitions. [2021-11-02 22:37:57,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-02 22:37:57,024 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:37:57,024 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:37:57,025 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-02 22:37:57,025 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 22:37:57,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:37:57,026 INFO L85 PathProgramCache]: Analyzing trace with hash -706326179, now seen corresponding path program 1 times [2021-11-02 22:37:57,026 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:37:57,027 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044613031] [2021-11-02 22:37:57,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:37:57,029 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:37:57,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:37:57,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:37:57,126 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:37:57,127 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044613031] [2021-11-02 22:37:57,127 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044613031] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:37:57,127 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:37:57,128 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-02 22:37:57,128 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420704505] [2021-11-02 22:37:57,128 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-02 22:37:57,129 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:37:57,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-02 22:37:57,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-02 22:37:57,130 INFO L87 Difference]: Start difference. First operand 169 states and 228 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 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) [2021-11-02 22:37:57,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:37:57,195 INFO L93 Difference]: Finished difference Result 400 states and 551 transitions. [2021-11-02 22:37:57,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-02 22:37:57,195 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 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 31 [2021-11-02 22:37:57,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:37:57,198 INFO L225 Difference]: With dead ends: 400 [2021-11-02 22:37:57,198 INFO L226 Difference]: Without dead ends: 279 [2021-11-02 22:37:57,201 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-02 22:37:57,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2021-11-02 22:37:57,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 163. [2021-11-02 22:37:57,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 162 states have (on average 1.3580246913580247) internal successors, (220), 162 states have internal predecessors, (220), 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) [2021-11-02 22:37:57,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 220 transitions. [2021-11-02 22:37:57,227 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 220 transitions. Word has length 31 [2021-11-02 22:37:57,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:37:57,228 INFO L470 AbstractCegarLoop]: Abstraction has 163 states and 220 transitions. [2021-11-02 22:37:57,229 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 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) [2021-11-02 22:37:57,229 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 220 transitions. [2021-11-02 22:37:57,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-02 22:37:57,230 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:37:57,230 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:37:57,230 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-02 22:37:57,231 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 22:37:57,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:37:57,231 INFO L85 PathProgramCache]: Analyzing trace with hash 533103064, now seen corresponding path program 1 times [2021-11-02 22:37:57,231 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:37:57,232 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597455691] [2021-11-02 22:37:57,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:37:57,232 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:37:57,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:37:57,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:37:57,353 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:37:57,353 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597455691] [2021-11-02 22:37:57,353 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597455691] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:37:57,354 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:37:57,354 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-02 22:37:57,354 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491828351] [2021-11-02 22:37:57,355 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-02 22:37:57,355 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:37:57,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-02 22:37:57,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-02 22:37:57,356 INFO L87 Difference]: Start difference. First operand 163 states and 220 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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) [2021-11-02 22:37:57,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:37:57,554 INFO L93 Difference]: Finished difference Result 353 states and 482 transitions. [2021-11-02 22:37:57,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-02 22:37:57,555 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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 31 [2021-11-02 22:37:57,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:37:57,558 INFO L225 Difference]: With dead ends: 353 [2021-11-02 22:37:57,558 INFO L226 Difference]: Without dead ends: 238 [2021-11-02 22:37:57,559 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-02 22:37:57,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2021-11-02 22:37:57,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 159. [2021-11-02 22:37:57,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 158 states have (on average 1.3417721518987342) internal successors, (212), 158 states have internal predecessors, (212), 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) [2021-11-02 22:37:57,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 212 transitions. [2021-11-02 22:37:57,575 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 212 transitions. Word has length 31 [2021-11-02 22:37:57,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:37:57,576 INFO L470 AbstractCegarLoop]: Abstraction has 159 states and 212 transitions. [2021-11-02 22:37:57,576 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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) [2021-11-02 22:37:57,577 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 212 transitions. [2021-11-02 22:37:57,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-02 22:37:57,578 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:37:57,578 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:37:57,579 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-02 22:37:57,579 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 22:37:57,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:37:57,580 INFO L85 PathProgramCache]: Analyzing trace with hash -1625643979, now seen corresponding path program 1 times [2021-11-02 22:37:57,580 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:37:57,580 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531303504] [2021-11-02 22:37:57,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:37:57,581 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:37:57,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:37:57,650 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-02 22:37:57,650 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:37:57,651 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531303504] [2021-11-02 22:37:57,651 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531303504] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:37:57,651 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:37:57,651 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-02 22:37:57,652 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514014015] [2021-11-02 22:37:57,652 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-02 22:37:57,652 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:37:57,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-02 22:37:57,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-02 22:37:57,654 INFO L87 Difference]: Start difference. First operand 159 states and 212 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 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) [2021-11-02 22:37:57,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:37:57,737 INFO L93 Difference]: Finished difference Result 335 states and 448 transitions. [2021-11-02 22:37:57,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-02 22:37:57,738 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 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 50 [2021-11-02 22:37:57,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:37:57,740 INFO L225 Difference]: With dead ends: 335 [2021-11-02 22:37:57,740 INFO L226 Difference]: Without dead ends: 182 [2021-11-02 22:37:57,741 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-02 22:37:57,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2021-11-02 22:37:57,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 135. [2021-11-02 22:37:57,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 134 states have (on average 1.3134328358208955) internal successors, (176), 134 states have internal predecessors, (176), 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) [2021-11-02 22:37:57,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 176 transitions. [2021-11-02 22:37:57,757 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 176 transitions. Word has length 50 [2021-11-02 22:37:57,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:37:57,758 INFO L470 AbstractCegarLoop]: Abstraction has 135 states and 176 transitions. [2021-11-02 22:37:57,758 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 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) [2021-11-02 22:37:57,758 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 176 transitions. [2021-11-02 22:37:57,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-02 22:37:57,759 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:37:57,759 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:37:57,760 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-02 22:37:57,760 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 22:37:57,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:37:57,761 INFO L85 PathProgramCache]: Analyzing trace with hash -1653055247, now seen corresponding path program 1 times [2021-11-02 22:37:57,761 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:37:57,761 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930702235] [2021-11-02 22:37:57,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:37:57,762 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:37:57,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:37:57,840 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-02 22:37:57,840 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:37:57,841 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930702235] [2021-11-02 22:37:57,841 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930702235] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:37:57,841 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:37:57,841 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-02 22:37:57,841 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630804847] [2021-11-02 22:37:57,842 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-02 22:37:57,842 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:37:57,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-02 22:37:57,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-02 22:37:57,845 INFO L87 Difference]: Start difference. First operand 135 states and 176 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 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) [2021-11-02 22:37:57,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:37:57,958 INFO L93 Difference]: Finished difference Result 449 states and 597 transitions. [2021-11-02 22:37:57,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-02 22:37:57,959 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 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 51 [2021-11-02 22:37:57,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:37:57,963 INFO L225 Difference]: With dead ends: 449 [2021-11-02 22:37:57,964 INFO L226 Difference]: Without dead ends: 344 [2021-11-02 22:37:57,965 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-02 22:37:57,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2021-11-02 22:37:57,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 138. [2021-11-02 22:37:57,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 137 states have (on average 1.3065693430656935) internal successors, (179), 137 states have internal predecessors, (179), 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) [2021-11-02 22:37:57,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 179 transitions. [2021-11-02 22:37:57,987 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 179 transitions. Word has length 51 [2021-11-02 22:37:57,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:37:57,988 INFO L470 AbstractCegarLoop]: Abstraction has 138 states and 179 transitions. [2021-11-02 22:37:57,988 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 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) [2021-11-02 22:37:57,989 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 179 transitions. [2021-11-02 22:37:57,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-02 22:37:57,990 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:37:57,990 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:37:57,990 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-02 22:37:57,991 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 22:37:57,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:37:57,991 INFO L85 PathProgramCache]: Analyzing trace with hash -2046082257, now seen corresponding path program 1 times [2021-11-02 22:37:57,992 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:37:57,992 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668528774] [2021-11-02 22:37:57,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:37:57,992 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:37:58,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:37:58,101 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-02 22:37:58,102 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:37:58,102 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668528774] [2021-11-02 22:37:58,102 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668528774] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:37:58,103 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:37:58,103 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-02 22:37:58,103 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478992412] [2021-11-02 22:37:58,104 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-02 22:37:58,104 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:37:58,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-02 22:37:58,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-02 22:37:58,105 INFO L87 Difference]: Start difference. First operand 138 states and 179 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 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) [2021-11-02 22:37:58,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:37:58,282 INFO L93 Difference]: Finished difference Result 347 states and 455 transitions. [2021-11-02 22:37:58,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-02 22:37:58,283 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 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 51 [2021-11-02 22:37:58,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:37:58,293 INFO L225 Difference]: With dead ends: 347 [2021-11-02 22:37:58,293 INFO L226 Difference]: Without dead ends: 345 [2021-11-02 22:37:58,294 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-02 22:37:58,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2021-11-02 22:37:58,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 138. [2021-11-02 22:37:58,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 137 states have (on average 1.2992700729927007) internal successors, (178), 137 states have internal predecessors, (178), 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) [2021-11-02 22:37:58,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 178 transitions. [2021-11-02 22:37:58,313 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 178 transitions. Word has length 51 [2021-11-02 22:37:58,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:37:58,315 INFO L470 AbstractCegarLoop]: Abstraction has 138 states and 178 transitions. [2021-11-02 22:37:58,315 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 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) [2021-11-02 22:37:58,315 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 178 transitions. [2021-11-02 22:37:58,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-02 22:37:58,316 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:37:58,317 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:37:58,317 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-02 22:37:58,317 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 22:37:58,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:37:58,318 INFO L85 PathProgramCache]: Analyzing trace with hash 772811102, now seen corresponding path program 1 times [2021-11-02 22:37:58,318 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:37:58,318 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247291813] [2021-11-02 22:37:58,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:37:58,319 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:37:58,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:37:58,440 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:37:58,440 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:37:58,440 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247291813] [2021-11-02 22:37:58,440 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247291813] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:37:58,441 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1392784153] [2021-11-02 22:37:58,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:37:58,441 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 22:37:58,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40a39deb-edc9-4df7-a29e-dca71d8755d4/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:37:58,444 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40a39deb-edc9-4df7-a29e-dca71d8755d4/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 22:37:58,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40a39deb-edc9-4df7-a29e-dca71d8755d4/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-02 22:37:58,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:37:58,623 INFO L263 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-02 22:37:58,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:37:58,976 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:37:58,977 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1392784153] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:37:58,977 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 22:37:58,977 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2021-11-02 22:37:58,978 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002054064] [2021-11-02 22:37:58,978 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-02 22:37:58,979 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:37:58,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-02 22:37:58,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-02 22:37:58,980 INFO L87 Difference]: Start difference. First operand 138 states and 178 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 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) [2021-11-02 22:37:59,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:37:59,259 INFO L93 Difference]: Finished difference Result 427 states and 563 transitions. [2021-11-02 22:37:59,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-02 22:37:59,259 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 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) Word has length 52 [2021-11-02 22:37:59,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:37:59,262 INFO L225 Difference]: With dead ends: 427 [2021-11-02 22:37:59,263 INFO L226 Difference]: Without dead ends: 319 [2021-11-02 22:37:59,264 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2021-11-02 22:37:59,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2021-11-02 22:37:59,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 195. [2021-11-02 22:37:59,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 194 states have (on average 1.309278350515464) internal successors, (254), 194 states have internal predecessors, (254), 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) [2021-11-02 22:37:59,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 254 transitions. [2021-11-02 22:37:59,293 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 254 transitions. Word has length 52 [2021-11-02 22:37:59,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:37:59,294 INFO L470 AbstractCegarLoop]: Abstraction has 195 states and 254 transitions. [2021-11-02 22:37:59,294 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 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) [2021-11-02 22:37:59,294 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 254 transitions. [2021-11-02 22:37:59,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-02 22:37:59,295 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:37:59,296 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:37:59,341 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40a39deb-edc9-4df7-a29e-dca71d8755d4/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-02 22:37:59,523 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40a39deb-edc9-4df7-a29e-dca71d8755d4/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 22:37:59,524 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 22:37:59,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:37:59,524 INFO L85 PathProgramCache]: Analyzing trace with hash -1104899688, now seen corresponding path program 2 times [2021-11-02 22:37:59,524 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:37:59,525 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572715536] [2021-11-02 22:37:59,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:37:59,525 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:37:59,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:37:59,676 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-02 22:37:59,677 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:37:59,677 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572715536] [2021-11-02 22:37:59,677 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572715536] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:37:59,677 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:37:59,678 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-02 22:37:59,678 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664682805] [2021-11-02 22:37:59,679 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-02 22:37:59,680 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:37:59,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-02 22:37:59,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-02 22:37:59,681 INFO L87 Difference]: Start difference. First operand 195 states and 254 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 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) [2021-11-02 22:38:00,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:38:00,069 INFO L93 Difference]: Finished difference Result 569 states and 755 transitions. [2021-11-02 22:38:00,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-02 22:38:00,070 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 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 73 [2021-11-02 22:38:00,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:38:00,073 INFO L225 Difference]: With dead ends: 569 [2021-11-02 22:38:00,073 INFO L226 Difference]: Without dead ends: 403 [2021-11-02 22:38:00,074 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-02 22:38:00,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2021-11-02 22:38:00,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 268. [2021-11-02 22:38:00,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 267 states have (on average 1.299625468164794) internal successors, (347), 267 states have internal predecessors, (347), 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) [2021-11-02 22:38:00,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 347 transitions. [2021-11-02 22:38:00,117 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 347 transitions. Word has length 73 [2021-11-02 22:38:00,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:38:00,117 INFO L470 AbstractCegarLoop]: Abstraction has 268 states and 347 transitions. [2021-11-02 22:38:00,118 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 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) [2021-11-02 22:38:00,118 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 347 transitions. [2021-11-02 22:38:00,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-02 22:38:00,119 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:38:00,120 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:38:00,120 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-02 22:38:00,120 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 22:38:00,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:38:00,121 INFO L85 PathProgramCache]: Analyzing trace with hash -830140074, now seen corresponding path program 1 times [2021-11-02 22:38:00,121 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:38:00,122 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723548117] [2021-11-02 22:38:00,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:38:00,122 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:38:00,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:38:00,201 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-02 22:38:00,202 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:38:00,202 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723548117] [2021-11-02 22:38:00,202 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723548117] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:38:00,202 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:38:00,203 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-02 22:38:00,203 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741516608] [2021-11-02 22:38:00,203 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-02 22:38:00,204 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:38:00,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-02 22:38:00,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-02 22:38:00,205 INFO L87 Difference]: Start difference. First operand 268 states and 347 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 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) [2021-11-02 22:38:00,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:38:00,276 INFO L93 Difference]: Finished difference Result 471 states and 609 transitions. [2021-11-02 22:38:00,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-02 22:38:00,277 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 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 73 [2021-11-02 22:38:00,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:38:00,277 INFO L225 Difference]: With dead ends: 471 [2021-11-02 22:38:00,277 INFO L226 Difference]: Without dead ends: 0 [2021-11-02 22:38:00,278 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-02 22:38:00,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-02 22:38:00,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-02 22:38:00,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:38:00,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-02 22:38:00,280 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 73 [2021-11-02 22:38:00,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:38:00,280 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-02 22:38:00,280 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 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) [2021-11-02 22:38:00,281 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-02 22:38:00,281 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-02 22:38:00,284 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-02 22:38:00,285 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-11-02 22:38:00,285 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-11-02 22:38:00,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-02 22:38:00,288 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-02 22:38:00,293 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-02 22:38:00,296 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-02 22:38:00,300 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-02 22:38:00,302 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-02 22:38:00,302 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-02 22:38:00,305 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-02 22:38:00,306 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-02 22:38:00,306 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-02 22:38:00,311 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-02 22:38:00,346 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-02 22:38:00,586 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-02 22:38:00,586 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-02 22:38:00,587 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-02 22:38:00,598 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-02 22:38:00,600 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-02 22:38:00,820 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-02 22:38:00,821 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-02 22:38:00,822 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-02 22:38:00,822 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-02 22:38:00,837 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-02 22:38:01,047 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-02 22:38:01,047 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-02 22:38:01,048 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-02 22:38:01,049 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-02 22:38:01,050 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-02 22:38:01,252 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-02 22:38:01,429 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-02 22:38:01,430 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-02 22:38:01,431 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-02 22:38:01,431 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-02 22:38:01,487 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-02 22:38:01,488 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-02 22:38:01,570 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-02 22:38:01,572 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-02 22:38:01,572 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-02 22:38:01,573 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-02 22:38:01,574 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-02 22:38:01,634 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-02 22:38:01,635 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-02 22:38:01,636 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-02 22:38:01,637 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-02 22:38:01,741 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-02 22:38:01,742 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-02 22:38:05,739 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 553) no Hoare annotation was computed. [2021-11-02 22:38:05,739 INFO L853 garLoopResultBuilder]: At program point L696(lines 691 699) the Hoare annotation is: (and (= ULTIMATE.start_test_~splverifierCounter~0 0) (= |ULTIMATE.start_isLowWaterSensorDry_#res| 0) (= ULTIMATE.start_isHighWaterLevel_~tmp~7 0) (= 1 ~systemActive~0) (<= 1 ~waterLevel~0)) [2021-11-02 22:38:05,740 INFO L853 garLoopResultBuilder]: At program point L696-1(lines 691 699) the Hoare annotation is: false [2021-11-02 22:38:05,740 INFO L853 garLoopResultBuilder]: At program point L696-2(lines 691 699) the Hoare annotation is: false [2021-11-02 22:38:05,740 INFO L857 garLoopResultBuilder]: For program point L929(lines 929 935) no Hoare annotation was computed. [2021-11-02 22:38:05,740 INFO L853 garLoopResultBuilder]: At program point L929-1(lines 929 935) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse3 (= ~pumpRunning~0 0)) (.cse1 (<= 2 ~waterLevel~0)) (.cse2 (= 1 ~systemActive~0))) (or (and .cse0 .cse1 (= ULTIMATE.start_isHighWaterLevel_~tmp~7 0) .cse2) (and .cse0 .cse3 .cse2 (= ~waterLevel~0 1)) (and .cse0 .cse3 .cse1 .cse2))) [2021-11-02 22:38:05,741 INFO L853 garLoopResultBuilder]: At program point L896(lines 881 899) the Hoare annotation is: (and (= |ULTIMATE.start_isLowWaterLevel_#res| 1) (= ULTIMATE.start_test_~splverifierCounter~0 0) (= |ULTIMATE.start_isLowWaterSensorDry_#res| 0) (= ULTIMATE.start_isHighWaterLevel_~tmp~7 0) (= 1 ~systemActive~0) (= ULTIMATE.start_isLowWaterLevel_~tmp~8 0) (= ULTIMATE.start_isLowWaterLevel_~tmp___0~2 1) (<= 1 ~waterLevel~0)) [2021-11-02 22:38:05,741 INFO L853 garLoopResultBuilder]: At program point L896-1(lines 881 899) the Hoare annotation is: false [2021-11-02 22:38:05,741 INFO L853 garLoopResultBuilder]: At program point L896-2(lines 881 899) the Hoare annotation is: false [2021-11-02 22:38:05,741 INFO L857 garLoopResultBuilder]: For program point L535(lines 535 542) no Hoare annotation was computed. [2021-11-02 22:38:05,741 INFO L860 garLoopResultBuilder]: At program point L535-1(lines 535 542) the Hoare annotation is: true [2021-11-02 22:38:05,742 INFO L853 garLoopResultBuilder]: At program point L967(lines 918 968) the Hoare annotation is: false [2021-11-02 22:38:05,742 INFO L857 garLoopResultBuilder]: For program point L769(lines 769 786) no Hoare annotation was computed. [2021-11-02 22:38:05,742 INFO L857 garLoopResultBuilder]: For program point L769-1(lines 769 786) no Hoare annotation was computed. [2021-11-02 22:38:05,742 INFO L857 garLoopResultBuilder]: For program point L769-2(lines 769 786) no Hoare annotation was computed. [2021-11-02 22:38:05,742 INFO L857 garLoopResultBuilder]: For program point L604(lines 604 608) no Hoare annotation was computed. [2021-11-02 22:38:05,743 INFO L857 garLoopResultBuilder]: For program point L604-3(lines 604 608) no Hoare annotation was computed. [2021-11-02 22:38:05,743 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 553) no Hoare annotation was computed. [2021-11-02 22:38:05,743 INFO L857 garLoopResultBuilder]: For program point L604-6(lines 604 608) no Hoare annotation was computed. [2021-11-02 22:38:05,743 INFO L857 garLoopResultBuilder]: For program point L871(lines 871 875) no Hoare annotation was computed. [2021-11-02 22:38:05,743 INFO L857 garLoopResultBuilder]: For program point L871-2(lines 871 875) no Hoare annotation was computed. [2021-11-02 22:38:05,744 INFO L857 garLoopResultBuilder]: For program point L871-3(lines 871 875) no Hoare annotation was computed. [2021-11-02 22:38:05,744 INFO L857 garLoopResultBuilder]: For program point L871-5(lines 871 875) no Hoare annotation was computed. [2021-11-02 22:38:05,744 INFO L853 garLoopResultBuilder]: At program point L673(lines 668 676) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse1 (= 1 ~systemActive~0))) (or (and .cse0 (<= 2 ~waterLevel~0) (= ULTIMATE.start_isHighWaterLevel_~tmp~7 0) .cse1 (<= 2 |ULTIMATE.start_getWaterLevel_#res|) (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0)) (and .cse0 (= ~pumpRunning~0 0) .cse1 (<= 1 ~waterLevel~0) (<= 1 |ULTIMATE.start_getWaterLevel_#res|)))) [2021-11-02 22:38:05,744 INFO L857 garLoopResultBuilder]: For program point L871-6(lines 871 875) no Hoare annotation was computed. [2021-11-02 22:38:05,744 INFO L853 garLoopResultBuilder]: At program point L673-1(lines 668 676) the Hoare annotation is: false [2021-11-02 22:38:05,745 INFO L857 garLoopResultBuilder]: For program point L871-8(lines 871 875) no Hoare annotation was computed. [2021-11-02 22:38:05,745 INFO L853 garLoopResultBuilder]: At program point L673-2(lines 668 676) the Hoare annotation is: false [2021-11-02 22:38:05,745 INFO L857 garLoopResultBuilder]: For program point L871-9(lines 871 875) no Hoare annotation was computed. [2021-11-02 22:38:05,745 INFO L853 garLoopResultBuilder]: At program point L508(lines 504 510) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2021-11-02 22:38:05,745 INFO L857 garLoopResultBuilder]: For program point L871-11(lines 871 875) no Hoare annotation was computed. [2021-11-02 22:38:05,746 INFO L857 garLoopResultBuilder]: For program point L871-12(lines 871 875) no Hoare annotation was computed. [2021-11-02 22:38:05,746 INFO L857 garLoopResultBuilder]: For program point L871-14(lines 871 875) no Hoare annotation was computed. [2021-11-02 22:38:05,746 INFO L857 garLoopResultBuilder]: For program point L871-15(lines 871 875) no Hoare annotation was computed. [2021-11-02 22:38:05,746 INFO L857 garLoopResultBuilder]: For program point L871-17(lines 871 875) no Hoare annotation was computed. [2021-11-02 22:38:05,746 INFO L857 garLoopResultBuilder]: For program point L773(lines 773 781) no Hoare annotation was computed. [2021-11-02 22:38:05,747 INFO L857 garLoopResultBuilder]: For program point L773-1(lines 773 781) no Hoare annotation was computed. [2021-11-02 22:38:05,747 INFO L857 garLoopResultBuilder]: For program point L773-2(lines 773 781) no Hoare annotation was computed. [2021-11-02 22:38:05,747 INFO L857 garLoopResultBuilder]: For program point L939(lines 939 945) no Hoare annotation was computed. [2021-11-02 22:38:05,747 INFO L853 garLoopResultBuilder]: At program point L939-1(lines 939 945) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse3 (= ~pumpRunning~0 0)) (.cse1 (<= 2 ~waterLevel~0)) (.cse2 (= 1 ~systemActive~0))) (or (and .cse0 .cse1 (= ULTIMATE.start_isHighWaterLevel_~tmp~7 0) .cse2) (and .cse0 .cse3 .cse2 (= ~waterLevel~0 1)) (and .cse0 .cse3 .cse1 .cse2))) [2021-11-02 22:38:05,747 INFO L860 garLoopResultBuilder]: At program point L544(lines 525 547) the Hoare annotation is: true [2021-11-02 22:38:05,748 INFO L857 garLoopResultBuilder]: For program point L743(lines 743 760) no Hoare annotation was computed. [2021-11-02 22:38:05,748 INFO L857 garLoopResultBuilder]: For program point L743-1(lines 743 760) no Hoare annotation was computed. [2021-11-02 22:38:05,748 INFO L857 garLoopResultBuilder]: For program point L743-2(lines 743 760) no Hoare annotation was computed. [2021-11-02 22:38:05,748 INFO L857 garLoopResultBuilder]: For program point L743-3(lines 743 760) no Hoare annotation was computed. [2021-11-02 22:38:05,748 INFO L857 garLoopResultBuilder]: For program point L743-4(lines 743 760) no Hoare annotation was computed. [2021-11-02 22:38:05,748 INFO L857 garLoopResultBuilder]: For program point L743-5(lines 743 760) no Hoare annotation was computed. [2021-11-02 22:38:05,749 INFO L853 garLoopResultBuilder]: At program point L711(lines 710 729) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse2 (= ~pumpRunning~0 0)) (.cse1 (= 1 ~systemActive~0))) (or (and .cse0 (= ULTIMATE.start_isHighWaterLevel_~tmp~7 0) .cse1 (<= 1 ~waterLevel~0)) (and .cse0 .cse2 .cse1 (= ~waterLevel~0 1)) (and .cse0 .cse2 (<= 2 ~waterLevel~0) .cse1))) [2021-11-02 22:38:05,749 INFO L857 garLoopResultBuilder]: For program point L711-1(lines 711 717) no Hoare annotation was computed. [2021-11-02 22:38:05,749 INFO L853 garLoopResultBuilder]: At program point L711-2(lines 710 729) the Hoare annotation is: false [2021-11-02 22:38:05,749 INFO L853 garLoopResultBuilder]: At program point L711-3(lines 710 729) the Hoare annotation is: false [2021-11-02 22:38:05,749 INFO L853 garLoopResultBuilder]: At program point L877(lines 862 880) the Hoare annotation is: false [2021-11-02 22:38:05,750 INFO L853 garLoopResultBuilder]: At program point L877-1(lines 862 880) the Hoare annotation is: (let ((.cse4 (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse1 (= ~pumpRunning~0 0)) (.cse3 (= 1 ~systemActive~0)) (.cse2 (= ULTIMATE.start_isHighWaterLevel_~tmp~7 0))) (or (and .cse0 .cse1 (<= 2 ~waterLevel~0) .cse2 .cse3 .cse4) (and (not .cse4) .cse0 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 0) .cse1 (= |ULTIMATE.start_isHighWaterLevel_#res| 0) .cse3 (<= 1 ~waterLevel~0) (not .cse2)))) [2021-11-02 22:38:05,750 INFO L853 garLoopResultBuilder]: At program point L877-2(lines 862 880) the Hoare annotation is: false [2021-11-02 22:38:05,750 INFO L853 garLoopResultBuilder]: At program point L877-3(lines 862 880) the Hoare annotation is: false [2021-11-02 22:38:05,750 INFO L853 garLoopResultBuilder]: At program point L877-4(lines 862 880) the Hoare annotation is: false [2021-11-02 22:38:05,750 INFO L853 garLoopResultBuilder]: At program point L877-5(lines 862 880) the Hoare annotation is: false [2021-11-02 22:38:05,751 INFO L853 garLoopResultBuilder]: At program point L580(lines 1 974) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2021-11-02 22:38:05,751 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-02 22:38:05,751 INFO L857 garLoopResultBuilder]: For program point L747(lines 747 755) no Hoare annotation was computed. [2021-11-02 22:38:05,751 INFO L857 garLoopResultBuilder]: For program point L747-1(lines 747 755) no Hoare annotation was computed. [2021-11-02 22:38:05,751 INFO L857 garLoopResultBuilder]: For program point L681(lines 681 687) no Hoare annotation was computed. [2021-11-02 22:38:05,752 INFO L857 garLoopResultBuilder]: For program point L747-2(lines 747 755) no Hoare annotation was computed. [2021-11-02 22:38:05,752 INFO L857 garLoopResultBuilder]: For program point L681-1(lines 681 687) no Hoare annotation was computed. [2021-11-02 22:38:05,752 INFO L857 garLoopResultBuilder]: For program point L747-3(lines 747 755) no Hoare annotation was computed. [2021-11-02 22:38:05,752 INFO L857 garLoopResultBuilder]: For program point L681-2(lines 681 687) no Hoare annotation was computed. [2021-11-02 22:38:05,752 INFO L857 garLoopResultBuilder]: For program point L747-4(lines 747 755) no Hoare annotation was computed. [2021-11-02 22:38:05,752 INFO L857 garLoopResultBuilder]: For program point L681-3(lines 681 687) no Hoare annotation was computed. [2021-11-02 22:38:05,753 INFO L857 garLoopResultBuilder]: For program point L747-5(lines 747 755) no Hoare annotation was computed. [2021-11-02 22:38:05,753 INFO L857 garLoopResultBuilder]: For program point L681-4(lines 681 687) no Hoare annotation was computed. [2021-11-02 22:38:05,753 INFO L857 garLoopResultBuilder]: For program point L681-5(lines 681 687) no Hoare annotation was computed. [2021-11-02 22:38:05,753 INFO L857 garLoopResultBuilder]: For program point L616(lines 616 620) no Hoare annotation was computed. [2021-11-02 22:38:05,753 INFO L857 garLoopResultBuilder]: For program point L949(lines 949 962) no Hoare annotation was computed. [2021-11-02 22:38:05,754 INFO L853 garLoopResultBuilder]: At program point L718(lines 718 724) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse1 (= 1 ~systemActive~0))) (or (and .cse0 (= ~pumpRunning~0 0) .cse1 (<= 1 ~waterLevel~0)) (and .cse0 (<= 2 ~waterLevel~0) (= ULTIMATE.start_isHighWaterLevel_~tmp~7 0) .cse1 (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0)))) [2021-11-02 22:38:05,754 INFO L853 garLoopResultBuilder]: At program point L718-1(lines 718 724) the Hoare annotation is: false [2021-11-02 22:38:05,754 INFO L853 garLoopResultBuilder]: At program point L718-2(lines 718 724) the Hoare annotation is: false [2021-11-02 22:38:05,754 INFO L857 garLoopResultBuilder]: For program point L553(line 553) no Hoare annotation was computed. [2021-11-02 22:38:05,754 INFO L857 garLoopResultBuilder]: For program point L553-1(line 553) no Hoare annotation was computed. [2021-11-02 22:38:05,754 INFO L857 garLoopResultBuilder]: For program point L553-2(line 553) no Hoare annotation was computed. [2021-11-02 22:38:05,755 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-02 22:38:05,755 INFO L853 garLoopResultBuilder]: At program point L686(lines 677 690) the Hoare annotation is: false [2021-11-02 22:38:05,755 INFO L853 garLoopResultBuilder]: At program point L686-1(lines 677 690) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= 1 ~systemActive~0))) (or (and .cse0 .cse1 (<= 2 ~waterLevel~0) .cse2) (and (not (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0)) .cse0 .cse1 .cse2 (<= 1 ~waterLevel~0)))) [2021-11-02 22:38:05,755 INFO L853 garLoopResultBuilder]: At program point L686-2(lines 677 690) the Hoare annotation is: false [2021-11-02 22:38:05,755 INFO L853 garLoopResultBuilder]: At program point L686-3(lines 677 690) the Hoare annotation is: false [2021-11-02 22:38:05,756 INFO L853 garLoopResultBuilder]: At program point L686-4(lines 677 690) the Hoare annotation is: false [2021-11-02 22:38:05,756 INFO L853 garLoopResultBuilder]: At program point L686-5(lines 677 690) the Hoare annotation is: false [2021-11-02 22:38:05,756 INFO L853 garLoopResultBuilder]: At program point L588(lines 583 591) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2021-11-02 22:38:05,756 INFO L853 garLoopResultBuilder]: At program point L457-2(lines 457 471) the Hoare annotation is: false [2021-11-02 22:38:05,756 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-02 22:38:05,756 INFO L857 garLoopResultBuilder]: For program point L920(lines 919 966) no Hoare annotation was computed. [2021-11-02 22:38:05,757 INFO L857 garLoopResultBuilder]: For program point L458(line 458) no Hoare annotation was computed. [2021-11-02 22:38:05,757 INFO L857 garLoopResultBuilder]: For program point L921(lines 921 925) no Hoare annotation was computed. [2021-11-02 22:38:05,757 INFO L853 garLoopResultBuilder]: At program point L822(lines 817 825) the Hoare annotation is: false [2021-11-02 22:38:05,757 INFO L853 garLoopResultBuilder]: At program point L822-1(lines 817 825) the Hoare annotation is: false [2021-11-02 22:38:05,757 INFO L853 garLoopResultBuilder]: At program point L822-2(lines 817 825) the Hoare annotation is: false [2021-11-02 22:38:05,758 INFO L857 garLoopResultBuilder]: For program point L427(lines 427 440) no Hoare annotation was computed. [2021-11-02 22:38:05,758 INFO L853 garLoopResultBuilder]: At program point L427-1(lines 1 974) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse2 (= ~pumpRunning~0 0)) (.cse1 (= 1 ~systemActive~0))) (or (and .cse0 (<= 2 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~3) (<= 2 ~waterLevel~0) (= ULTIMATE.start_isHighWaterLevel_~tmp~7 0) .cse1 (<= 2 |ULTIMATE.start_getWaterLevel_#res|) (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0)) (and (<= 1 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~3) .cse0 .cse2 .cse1 (<= 1 ~waterLevel~0) (<= 1 |ULTIMATE.start_getWaterLevel_#res|)) (and .cse0 .cse2 .cse1 (= ~waterLevel~0 1)))) [2021-11-02 22:38:05,758 INFO L857 garLoopResultBuilder]: For program point L427-2(lines 427 440) no Hoare annotation was computed. [2021-11-02 22:38:05,758 INFO L853 garLoopResultBuilder]: At program point L427-3(lines 1 974) the Hoare annotation is: false [2021-11-02 22:38:05,758 INFO L857 garLoopResultBuilder]: For program point L427-4(lines 427 440) no Hoare annotation was computed. [2021-11-02 22:38:05,759 INFO L853 garLoopResultBuilder]: At program point L427-5(lines 1 974) the Hoare annotation is: false [2021-11-02 22:38:05,759 INFO L857 garLoopResultBuilder]: For program point L890(lines 890 894) no Hoare annotation was computed. [2021-11-02 22:38:05,759 INFO L857 garLoopResultBuilder]: For program point L890-2(lines 890 894) no Hoare annotation was computed. [2021-11-02 22:38:05,759 INFO L857 garLoopResultBuilder]: For program point L890-3(lines 890 894) no Hoare annotation was computed. [2021-11-02 22:38:05,759 INFO L857 garLoopResultBuilder]: For program point L890-5(lines 890 894) no Hoare annotation was computed. [2021-11-02 22:38:05,759 INFO L857 garLoopResultBuilder]: For program point L890-6(lines 890 894) no Hoare annotation was computed. [2021-11-02 22:38:05,760 INFO L857 garLoopResultBuilder]: For program point L890-8(lines 890 894) no Hoare annotation was computed. [2021-11-02 22:38:05,760 INFO L857 garLoopResultBuilder]: For program point L461(lines 461 465) no Hoare annotation was computed. [2021-11-02 22:38:05,760 INFO L857 garLoopResultBuilder]: For program point L461-1(lines 711 717) no Hoare annotation was computed. [2021-11-02 22:38:05,760 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-02 22:38:05,760 INFO L857 garLoopResultBuilder]: For program point L957(lines 957 961) no Hoare annotation was computed. [2021-11-02 22:38:05,760 INFO L853 garLoopResultBuilder]: At program point L957-2(lines 711 717) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse3 (= ~pumpRunning~0 0)) (.cse1 (<= 2 ~waterLevel~0)) (.cse2 (= 1 ~systemActive~0))) (or (and .cse0 .cse1 (= ULTIMATE.start_isHighWaterLevel_~tmp~7 0) .cse2) (and .cse0 .cse3 .cse2 (= ~waterLevel~0 1)) (and .cse0 .cse3 .cse1 .cse2))) [2021-11-02 22:38:05,761 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 553) no Hoare annotation was computed. [2021-11-02 22:38:05,761 INFO L857 garLoopResultBuilder]: For program point L628(lines 628 632) no Hoare annotation was computed. [2021-11-02 22:38:05,761 INFO L857 garLoopResultBuilder]: For program point L431(lines 431 437) no Hoare annotation was computed. [2021-11-02 22:38:05,761 INFO L857 garLoopResultBuilder]: For program point L431-2(lines 431 437) no Hoare annotation was computed. [2021-11-02 22:38:05,761 INFO L857 garLoopResultBuilder]: For program point L431-4(lines 431 437) no Hoare annotation was computed. [2021-11-02 22:38:05,766 INFO L731 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:38:05,768 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-02 22:38:05,797 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 10:38:05 BoogieIcfgContainer [2021-11-02 22:38:05,798 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-02 22:38:05,798 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-02 22:38:05,799 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-02 22:38:05,799 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-02 22:38:05,799 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:37:54" (3/4) ... [2021-11-02 22:38:05,803 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-02 22:38:05,828 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2021-11-02 22:38:05,829 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2021-11-02 22:38:05,831 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-11-02 22:38:05,832 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-02 22:38:05,833 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-02 22:38:05,835 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-02 22:38:05,836 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-02 22:38:05,867 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((splverifierCounter == 0 && 2 <= tmp) && 2 <= waterLevel) && tmp == 0) && 1 == systemActive) && 2 <= \result) && \result == 0) || (((((1 <= tmp && splverifierCounter == 0) && pumpRunning == 0) && 1 == systemActive) && 1 <= waterLevel) && 1 <= \result)) || (((splverifierCounter == 0 && pumpRunning == 0) && 1 == systemActive) && waterLevel == 1) [2021-11-02 22:38:05,869 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((splverifierCounter == 0 && pumpRunning == 0) && 1 == systemActive) && 1 <= waterLevel) || ((((splverifierCounter == 0 && 2 <= waterLevel) && tmp == 0) && 1 == systemActive) && \result == 0) [2021-11-02 22:38:05,871 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((splverifierCounter == 0 && 2 <= waterLevel) && tmp == 0) && 1 == systemActive) && 2 <= \result) && \result == 0) || ((((splverifierCounter == 0 && pumpRunning == 0) && 1 == systemActive) && 1 <= waterLevel) && 1 <= \result) [2021-11-02 22:38:05,872 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((splverifierCounter == 0 && \result == 0) && tmp == 0) && 1 == systemActive) && 1 <= waterLevel [2021-11-02 22:38:05,873 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((splverifierCounter == 0 && pumpRunning == 0) && 2 <= waterLevel) && 1 == systemActive) || ((((!(\result == 0) && splverifierCounter == 0) && pumpRunning == 0) && 1 == systemActive) && 1 <= waterLevel) [2021-11-02 22:38:05,874 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((\result == 1 && splverifierCounter == 0) && \result == 0) && tmp == 0) && 1 == systemActive) && tmp == 0) && tmp___0 == 1) && 1 <= waterLevel [2021-11-02 22:38:05,875 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((splverifierCounter == 0 && pumpRunning == 0) && 2 <= waterLevel) && tmp == 0) && 1 == systemActive) && \result == 0) || (((((((!(\result == 0) && splverifierCounter == 0) && tmp___0 == 0) && pumpRunning == 0) && \result == 0) && 1 == systemActive) && 1 <= waterLevel) && !(tmp == 0)) [2021-11-02 22:38:05,932 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40a39deb-edc9-4df7-a29e-dca71d8755d4/bin/uautomizer-tBqnrhUYjU/witness.graphml [2021-11-02 22:38:05,932 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-02 22:38:05,934 INFO L168 Benchmark]: Toolchain (without parser) took 13582.95 ms. Allocated memory was 109.1 MB in the beginning and 161.5 MB in the end (delta: 52.4 MB). Free memory was 69.6 MB in the beginning and 103.2 MB in the end (delta: -33.6 MB). Peak memory consumption was 19.0 MB. Max. memory is 16.1 GB. [2021-11-02 22:38:05,935 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 109.1 MB. Free memory is still 86.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-02 22:38:05,935 INFO L168 Benchmark]: CACSL2BoogieTranslator took 679.18 ms. Allocated memory is still 109.1 MB. Free memory was 69.4 MB in the beginning and 75.9 MB in the end (delta: -6.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-11-02 22:38:05,936 INFO L168 Benchmark]: Boogie Procedure Inliner took 170.04 ms. Allocated memory is still 109.1 MB. Free memory was 75.9 MB in the beginning and 72.1 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-11-02 22:38:05,936 INFO L168 Benchmark]: Boogie Preprocessor took 76.92 ms. Allocated memory is still 109.1 MB. Free memory was 72.1 MB in the beginning and 69.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-02 22:38:05,937 INFO L168 Benchmark]: RCFGBuilder took 1410.53 ms. Allocated memory was 109.1 MB in the beginning and 134.2 MB in the end (delta: 25.2 MB). Free memory was 69.6 MB in the beginning and 97.2 MB in the end (delta: -27.6 MB). Peak memory consumption was 41.1 MB. Max. memory is 16.1 GB. [2021-11-02 22:38:05,937 INFO L168 Benchmark]: TraceAbstraction took 11103.84 ms. Allocated memory was 134.2 MB in the beginning and 161.5 MB in the end (delta: 27.3 MB). Free memory was 96.0 MB in the beginning and 113.7 MB in the end (delta: -17.7 MB). Peak memory consumption was 85.0 MB. Max. memory is 16.1 GB. [2021-11-02 22:38:05,938 INFO L168 Benchmark]: Witness Printer took 134.09 ms. Allocated memory is still 161.5 MB. Free memory was 112.7 MB in the beginning and 103.2 MB in the end (delta: 9.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-02 22:38:05,940 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 ms. Allocated memory is still 109.1 MB. Free memory is still 86.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 679.18 ms. Allocated memory is still 109.1 MB. Free memory was 69.4 MB in the beginning and 75.9 MB in the end (delta: -6.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 170.04 ms. Allocated memory is still 109.1 MB. Free memory was 75.9 MB in the beginning and 72.1 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 76.92 ms. Allocated memory is still 109.1 MB. Free memory was 72.1 MB in the beginning and 69.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1410.53 ms. Allocated memory was 109.1 MB in the beginning and 134.2 MB in the end (delta: 25.2 MB). Free memory was 69.6 MB in the beginning and 97.2 MB in the end (delta: -27.6 MB). Peak memory consumption was 41.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 11103.84 ms. Allocated memory was 134.2 MB in the beginning and 161.5 MB in the end (delta: 27.3 MB). Free memory was 96.0 MB in the beginning and 113.7 MB in the end (delta: -17.7 MB). Peak memory consumption was 85.0 MB. Max. memory is 16.1 GB. * Witness Printer took 134.09 ms. Allocated memory is still 161.5 MB. Free memory was 112.7 MB in the beginning and 103.2 MB in the end (delta: 9.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 553]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 553]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 553]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 117 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 10.9s, OverallIterations: 15, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.4s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 1547 SDtfs, 2001 SDslu, 2253 SDs, 0 SdLazy, 373 SolverSat, 66 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 156 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=268occurred in iteration=14, InterpolantAutomatonStates: 77, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 15 MinimizatonAttempts, 1034 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 43 LocationsWithAnnotation, 43 PreInvPairs, 123 NumberOfFragments, 459 HoareAnnotationTreeSize, 43 FomulaSimplifications, 1777923 FormulaSimplificationTreeSizeReduction, 1.4s HoareSimplificationTime, 43 FomulaSimplificationsInter, 262402 FormulaSimplificationTreeSizeReductionInter, 3.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 634 NumberOfCodeBlocks, 634 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 618 ConstructedInterpolants, 0 QuantifiedInterpolants, 970 SizeOfPredicates, 3 NumberOfNonLiveVariables, 425 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 16 InterpolantComputations, 14 PerfectInterpolantSequences, 162/168 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 881]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 691]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 677]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 525]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 817]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 862]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 881]: Loop Invariant Derived loop invariant: ((((((\result == 1 && splverifierCounter == 0) && \result == 0) && tmp == 0) && 1 == systemActive) && tmp == 0) && tmp___0 == 1) && 1 <= waterLevel - InvariantResult [Line: 710]: Loop Invariant Derived loop invariant: ((((splverifierCounter == 0 && tmp == 0) && 1 == systemActive) && 1 <= waterLevel) || (((splverifierCounter == 0 && pumpRunning == 0) && 1 == systemActive) && waterLevel == 1)) || (((splverifierCounter == 0 && pumpRunning == 0) && 2 <= waterLevel) && 1 == systemActive) - InvariantResult [Line: 881]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 677]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 691]: Loop Invariant Derived loop invariant: (((splverifierCounter == 0 && \result == 0) && tmp == 0) && 1 == systemActive) && 1 <= waterLevel - InvariantResult [Line: 457]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 929]: Loop Invariant Derived loop invariant: ((((splverifierCounter == 0 && 2 <= waterLevel) && tmp == 0) && 1 == systemActive) || (((splverifierCounter == 0 && pumpRunning == 0) && 1 == systemActive) && waterLevel == 1)) || (((splverifierCounter == 0 && pumpRunning == 0) && 2 <= waterLevel) && 1 == systemActive) - InvariantResult [Line: 535]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 677]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 677]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 862]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 939]: Loop Invariant Derived loop invariant: ((((splverifierCounter == 0 && 2 <= waterLevel) && tmp == 0) && 1 == systemActive) || (((splverifierCounter == 0 && pumpRunning == 0) && 1 == systemActive) && waterLevel == 1)) || (((splverifierCounter == 0 && pumpRunning == 0) && 2 <= waterLevel) && 1 == systemActive) - InvariantResult [Line: 862]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 817]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 691]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 711]: Loop Invariant Derived loop invariant: ((((splverifierCounter == 0 && 2 <= waterLevel) && tmp == 0) && 1 == systemActive) || (((splverifierCounter == 0 && pumpRunning == 0) && 1 == systemActive) && waterLevel == 1)) || (((splverifierCounter == 0 && pumpRunning == 0) && 2 <= waterLevel) && 1 == systemActive) - InvariantResult [Line: 718]: Loop Invariant Derived loop invariant: (((splverifierCounter == 0 && pumpRunning == 0) && 1 == systemActive) && 1 <= waterLevel) || ((((splverifierCounter == 0 && 2 <= waterLevel) && tmp == 0) && 1 == systemActive) && \result == 0) - InvariantResult [Line: 862]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 817]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 668]: Loop Invariant Derived loop invariant: (((((splverifierCounter == 0 && 2 <= waterLevel) && tmp == 0) && 1 == systemActive) && 2 <= \result) && \result == 0) || ((((splverifierCounter == 0 && pumpRunning == 0) && 1 == systemActive) && 1 <= waterLevel) && 1 <= \result) - InvariantResult [Line: 718]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 677]: Loop Invariant Derived loop invariant: (((splverifierCounter == 0 && pumpRunning == 0) && 2 <= waterLevel) && 1 == systemActive) || ((((!(\result == 0) && splverifierCounter == 0) && pumpRunning == 0) && 1 == systemActive) && 1 <= waterLevel) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 918]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 668]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 710]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 668]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 718]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 862]: Loop Invariant Derived loop invariant: (((((splverifierCounter == 0 && pumpRunning == 0) && 2 <= waterLevel) && tmp == 0) && 1 == systemActive) && \result == 0) || (((((((!(\result == 0) && splverifierCounter == 0) && tmp___0 == 0) && pumpRunning == 0) && \result == 0) && 1 == systemActive) && 1 <= waterLevel) && !(tmp == 0)) - InvariantResult [Line: 504]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 862]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((((((splverifierCounter == 0 && 2 <= tmp) && 2 <= waterLevel) && tmp == 0) && 1 == systemActive) && 2 <= \result) && \result == 0) || (((((1 <= tmp && splverifierCounter == 0) && pumpRunning == 0) && 1 == systemActive) && 1 <= waterLevel) && 1 <= \result)) || (((splverifierCounter == 0 && pumpRunning == 0) && 1 == systemActive) && waterLevel == 1) - InvariantResult [Line: 710]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 677]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2021-11-02 22:38:06,014 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40a39deb-edc9-4df7-a29e-dca71d8755d4/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE