./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product51.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ef87ce-a27c-48eb-ba4e-e833f20d8eaf/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ef87ce-a27c-48eb-ba4e-e833f20d8eaf/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ef87ce-a27c-48eb-ba4e-e833f20d8eaf/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ef87ce-a27c-48eb-ba4e-e833f20d8eaf/bin/uautomizer-WNIpwEf4Nt/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product51.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ef87ce-a27c-48eb-ba4e-e833f20d8eaf/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ef87ce-a27c-48eb-ba4e-e833f20d8eaf/bin/uautomizer-WNIpwEf4Nt --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 2d6bd7a2d1728d381423fedea6f747367a642c2a .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 00:34:34,726 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:34:34,729 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:34:34,784 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:34:34,785 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:34:34,789 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:34:34,791 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:34:34,796 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:34:34,799 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:34:34,805 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:34:34,806 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:34:34,808 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:34:34,809 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:34:34,812 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:34:34,814 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:34:34,822 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:34:34,824 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:34:34,825 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:34:34,828 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:34:34,836 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:34:34,838 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:34:34,839 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:34:34,843 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:34:34,844 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:34:34,851 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:34:34,852 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:34:34,852 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:34:34,855 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:34:34,856 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:34:34,857 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:34:34,858 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:34:34,859 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:34:34,861 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:34:34,863 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:34:34,865 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:34:34,865 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:34:34,866 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:34:34,866 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:34:34,866 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:34:34,867 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:34:34,868 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:34:34,869 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ef87ce-a27c-48eb-ba4e-e833f20d8eaf/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-13 00:34:34,908 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:34:34,908 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:34:34,909 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:34:34,909 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:34:34,917 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:34:34,917 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:34:34,917 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:34:34,918 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:34:34,918 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:34:34,918 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:34:34,919 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:34:34,920 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:34:34,920 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 00:34:34,920 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 00:34:34,920 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 00:34:34,921 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:34:34,921 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 00:34:34,921 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:34:34,921 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 00:34:34,922 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:34:34,922 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:34:34,922 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 00:34:34,922 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:34:34,923 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:34:34,923 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 00:34:34,923 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 00:34:34,923 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 00:34:34,923 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 00:34:34,924 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 00:34:34,925 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:34:34,926 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_b3ef87ce-a27c-48eb-ba4e-e833f20d8eaf/bin/uautomizer-WNIpwEf4Nt/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ef87ce-a27c-48eb-ba4e-e833f20d8eaf/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d6bd7a2d1728d381423fedea6f747367a642c2a [2021-10-13 00:34:35,194 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:34:35,217 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:34:35,219 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:34:35,221 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:34:35,222 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:34:35,223 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ef87ce-a27c-48eb-ba4e-e833f20d8eaf/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/product-lines/minepump_spec2_product51.cil.c [2021-10-13 00:34:35,310 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ef87ce-a27c-48eb-ba4e-e833f20d8eaf/bin/uautomizer-WNIpwEf4Nt/data/55f8bebeb/a3ed33306e894f40b7a5eeadddfbf406/FLAG35fd33d64 [2021-10-13 00:34:35,833 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:34:35,833 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ef87ce-a27c-48eb-ba4e-e833f20d8eaf/sv-benchmarks/c/product-lines/minepump_spec2_product51.cil.c [2021-10-13 00:34:35,848 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ef87ce-a27c-48eb-ba4e-e833f20d8eaf/bin/uautomizer-WNIpwEf4Nt/data/55f8bebeb/a3ed33306e894f40b7a5eeadddfbf406/FLAG35fd33d64 [2021-10-13 00:34:36,168 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ef87ce-a27c-48eb-ba4e-e833f20d8eaf/bin/uautomizer-WNIpwEf4Nt/data/55f8bebeb/a3ed33306e894f40b7a5eeadddfbf406 [2021-10-13 00:34:36,170 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:34:36,171 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 00:34:36,184 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:34:36,185 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:34:36,188 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:34:36,189 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:34:36" (1/1) ... [2021-10-13 00:34:36,191 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15b2c7ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:34:36, skipping insertion in model container [2021-10-13 00:34:36,192 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:34:36" (1/1) ... [2021-10-13 00:34:36,199 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:34:36,244 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:34:36,511 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_b3ef87ce-a27c-48eb-ba4e-e833f20d8eaf/sv-benchmarks/c/product-lines/minepump_spec2_product51.cil.c[9005,9018] [2021-10-13 00:34:36,565 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:34:36,576 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:34:36,618 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_b3ef87ce-a27c-48eb-ba4e-e833f20d8eaf/sv-benchmarks/c/product-lines/minepump_spec2_product51.cil.c[9005,9018] [2021-10-13 00:34:36,649 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:34:36,669 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:34:36,669 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:34:36 WrapperNode [2021-10-13 00:34:36,669 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:34:36,671 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 00:34:36,671 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 00:34:36,671 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 00:34:36,679 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:34:36" (1/1) ... [2021-10-13 00:34:36,695 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:34:36" (1/1) ... [2021-10-13 00:34:36,736 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 00:34:36,737 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:34:36,738 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:34:36,738 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:34:36,747 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:34:36" (1/1) ... [2021-10-13 00:34:36,757 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:34:36" (1/1) ... [2021-10-13 00:34:36,762 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:34:36" (1/1) ... [2021-10-13 00:34:36,763 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:34:36" (1/1) ... [2021-10-13 00:34:36,775 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:34:36" (1/1) ... [2021-10-13 00:34:36,795 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:34:36" (1/1) ... [2021-10-13 00:34:36,811 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:34:36" (1/1) ... [2021-10-13 00:34:36,815 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:34:36,816 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:34:36,816 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:34:36,816 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:34:36,825 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:34:36" (1/1) ... [2021-10-13 00:34:36,849 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:34:36,863 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ef87ce-a27c-48eb-ba4e-e833f20d8eaf/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:34:36,874 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ef87ce-a27c-48eb-ba4e-e833f20d8eaf/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 00:34:36,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ef87ce-a27c-48eb-ba4e-e833f20d8eaf/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 00:34:36,919 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:34:36,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 00:34:36,920 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:34:36,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:34:37,858 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:34:37,859 INFO L299 CfgBuilder]: Removed 162 assume(true) statements. [2021-10-13 00:34:37,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:34:37 BoogieIcfgContainer [2021-10-13 00:34:37,861 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:34:37,863 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 00:34:37,863 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 00:34:37,867 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 00:34:37,867 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:34:36" (1/3) ... [2021-10-13 00:34:37,868 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30f7a31c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:34:37, skipping insertion in model container [2021-10-13 00:34:37,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:34:36" (2/3) ... [2021-10-13 00:34:37,868 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30f7a31c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:34:37, skipping insertion in model container [2021-10-13 00:34:37,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:34:37" (3/3) ... [2021-10-13 00:34:37,870 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product51.cil.c [2021-10-13 00:34:37,876 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 00:34:37,876 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-13 00:34:37,925 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 00:34:37,932 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, mConcurrency=FINITE_AUTOMATA, 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 [2021-10-13 00:34:37,933 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-13 00:34:37,952 INFO L276 IsEmpty]: Start isEmpty. Operand has 123 states, 119 states have (on average 1.5714285714285714) internal successors, (187), 122 states have internal predecessors, (187), 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) [2021-10-13 00:34:37,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-13 00:34:37,960 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:34:37,960 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:34:37,961 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:34:37,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:34:37,975 INFO L82 PathProgramCache]: Analyzing trace with hash 815277316, now seen corresponding path program 1 times [2021-10-13 00:34:37,981 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:34:37,982 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568044154] [2021-10-13 00:34:37,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:34:37,983 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:34:38,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:34:38,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:34:38,219 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:34:38,220 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568044154] [2021-10-13 00:34:38,220 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568044154] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:34:38,221 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:34:38,221 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 00:34:38,223 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795586109] [2021-10-13 00:34:38,228 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-13 00:34:38,228 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:34:38,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-13 00:34:38,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 00:34:38,244 INFO L87 Difference]: Start difference. First operand has 123 states, 119 states have (on average 1.5714285714285714) internal successors, (187), 122 states have internal predecessors, (187), 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 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:34:38,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:34:38,275 INFO L93 Difference]: Finished difference Result 239 states and 366 transitions. [2021-10-13 00:34:38,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-13 00:34:38,277 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-10-13 00:34:38,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:34:38,288 INFO L225 Difference]: With dead ends: 239 [2021-10-13 00:34:38,288 INFO L226 Difference]: Without dead ends: 119 [2021-10-13 00:34:38,291 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 00:34:38,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2021-10-13 00:34:38,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2021-10-13 00:34:38,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 116 states have (on average 1.5086206896551724) internal successors, (175), 118 states have internal predecessors, (175), 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) [2021-10-13 00:34:38,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 175 transitions. [2021-10-13 00:34:38,355 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 175 transitions. Word has length 18 [2021-10-13 00:34:38,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:34:38,357 INFO L470 AbstractCegarLoop]: Abstraction has 119 states and 175 transitions. [2021-10-13 00:34:38,357 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:34:38,358 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 175 transitions. [2021-10-13 00:34:38,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-13 00:34:38,361 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:34:38,361 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:34:38,362 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 00:34:38,362 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:34:38,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:34:38,367 INFO L82 PathProgramCache]: Analyzing trace with hash 596441347, now seen corresponding path program 1 times [2021-10-13 00:34:38,367 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:34:38,367 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881749648] [2021-10-13 00:34:38,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:34:38,368 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:34:38,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:34:38,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:34:38,474 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:34:38,482 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881749648] [2021-10-13 00:34:38,482 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881749648] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:34:38,482 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:34:38,482 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:34:38,483 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228126060] [2021-10-13 00:34:38,484 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:34:38,484 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:34:38,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:34:38,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:34:38,486 INFO L87 Difference]: Start difference. First operand 119 states and 175 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2021-10-13 00:34:38,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:34:38,502 INFO L93 Difference]: Finished difference Result 119 states and 175 transitions. [2021-10-13 00:34:38,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:34:38,503 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 19 [2021-10-13 00:34:38,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:34:38,504 INFO L225 Difference]: With dead ends: 119 [2021-10-13 00:34:38,505 INFO L226 Difference]: Without dead ends: 51 [2021-10-13 00:34:38,506 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:34:38,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2021-10-13 00:34:38,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2021-10-13 00:34:38,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 50 states have (on average 1.48) internal successors, (74), 50 states have internal predecessors, (74), 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) [2021-10-13 00:34:38,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 74 transitions. [2021-10-13 00:34:38,520 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 74 transitions. Word has length 19 [2021-10-13 00:34:38,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:34:38,521 INFO L470 AbstractCegarLoop]: Abstraction has 51 states and 74 transitions. [2021-10-13 00:34:38,521 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2021-10-13 00:34:38,521 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 74 transitions. [2021-10-13 00:34:38,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-13 00:34:38,524 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:34:38,524 INFO L512 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] [2021-10-13 00:34:38,524 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-13 00:34:38,525 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:34:38,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:34:38,527 INFO L82 PathProgramCache]: Analyzing trace with hash -781547841, now seen corresponding path program 1 times [2021-10-13 00:34:38,527 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:34:38,528 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336560298] [2021-10-13 00:34:38,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:34:38,529 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:34:38,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:34:38,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:34:38,635 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:34:38,635 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336560298] [2021-10-13 00:34:38,636 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336560298] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:34:38,636 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:34:38,636 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 00:34:38,637 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836766154] [2021-10-13 00:34:38,637 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:34:38,637 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:34:38,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:34:38,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:34:38,638 INFO L87 Difference]: Start difference. First operand 51 states and 74 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) [2021-10-13 00:34:38,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:34:38,656 INFO L93 Difference]: Finished difference Result 139 states and 208 transitions. [2021-10-13 00:34:38,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:34:38,673 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 [2021-10-13 00:34:38,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:34:38,675 INFO L225 Difference]: With dead ends: 139 [2021-10-13 00:34:38,675 INFO L226 Difference]: Without dead ends: 95 [2021-10-13 00:34:38,676 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:34:38,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2021-10-13 00:34:38,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 91. [2021-10-13 00:34:38,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 90 states have (on average 1.511111111111111) internal successors, (136), 90 states have internal predecessors, (136), 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) [2021-10-13 00:34:38,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 136 transitions. [2021-10-13 00:34:38,688 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 136 transitions. Word has length 24 [2021-10-13 00:34:38,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:34:38,688 INFO L470 AbstractCegarLoop]: Abstraction has 91 states and 136 transitions. [2021-10-13 00:34:38,689 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) [2021-10-13 00:34:38,689 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 136 transitions. [2021-10-13 00:34:38,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-13 00:34:38,690 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:34:38,691 INFO L512 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] [2021-10-13 00:34:38,691 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-13 00:34:38,691 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:34:38,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:34:38,692 INFO L82 PathProgramCache]: Analyzing trace with hash -1063081859, now seen corresponding path program 1 times [2021-10-13 00:34:38,692 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:34:38,693 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909131493] [2021-10-13 00:34:38,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:34:38,693 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:34:38,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:34:38,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:34:38,755 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:34:38,755 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909131493] [2021-10-13 00:34:38,755 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909131493] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:34:38,756 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:34:38,756 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 00:34:38,756 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680597064] [2021-10-13 00:34:38,757 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:34:38,757 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:34:38,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:34:38,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:34:38,758 INFO L87 Difference]: Start difference. First operand 91 states and 136 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:34:38,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:34:38,804 INFO L93 Difference]: Finished difference Result 218 states and 331 transitions. [2021-10-13 00:34:38,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:34:38,805 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-10-13 00:34:38,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:34:38,809 INFO L225 Difference]: With dead ends: 218 [2021-10-13 00:34:38,811 INFO L226 Difference]: Without dead ends: 134 [2021-10-13 00:34:38,812 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:34:38,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2021-10-13 00:34:38,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 132. [2021-10-13 00:34:38,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 131 states have (on average 1.4809160305343512) internal successors, (194), 131 states have internal predecessors, (194), 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) [2021-10-13 00:34:38,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 194 transitions. [2021-10-13 00:34:38,837 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 194 transitions. Word has length 26 [2021-10-13 00:34:38,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:34:38,838 INFO L470 AbstractCegarLoop]: Abstraction has 132 states and 194 transitions. [2021-10-13 00:34:38,838 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:34:38,839 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 194 transitions. [2021-10-13 00:34:38,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-13 00:34:38,844 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:34:38,844 INFO L512 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] [2021-10-13 00:34:38,845 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-13 00:34:38,845 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:34:38,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:34:38,846 INFO L82 PathProgramCache]: Analyzing trace with hash -460039864, now seen corresponding path program 1 times [2021-10-13 00:34:38,847 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:34:38,849 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63418349] [2021-10-13 00:34:38,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:34:38,849 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:34:38,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:34:38,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:34:38,981 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:34:38,982 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63418349] [2021-10-13 00:34:38,982 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63418349] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:34:38,982 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:34:38,982 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 00:34:38,982 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267325696] [2021-10-13 00:34:38,983 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 00:34:38,984 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:34:38,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 00:34:38,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:34:38,985 INFO L87 Difference]: Start difference. First operand 132 states and 194 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 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) [2021-10-13 00:34:39,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:34:39,093 INFO L93 Difference]: Finished difference Result 692 states and 1031 transitions. [2021-10-13 00:34:39,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-13 00:34:39,094 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 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 27 [2021-10-13 00:34:39,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:34:39,098 INFO L225 Difference]: With dead ends: 692 [2021-10-13 00:34:39,099 INFO L226 Difference]: Without dead ends: 567 [2021-10-13 00:34:39,101 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 33.9ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-13 00:34:39,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2021-10-13 00:34:39,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 243. [2021-10-13 00:34:39,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 242 states have (on average 1.4545454545454546) internal successors, (352), 242 states have internal predecessors, (352), 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) [2021-10-13 00:34:39,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 352 transitions. [2021-10-13 00:34:39,145 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 352 transitions. Word has length 27 [2021-10-13 00:34:39,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:34:39,146 INFO L470 AbstractCegarLoop]: Abstraction has 243 states and 352 transitions. [2021-10-13 00:34:39,146 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 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) [2021-10-13 00:34:39,146 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 352 transitions. [2021-10-13 00:34:39,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-13 00:34:39,150 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:34:39,151 INFO L512 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] [2021-10-13 00:34:39,151 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-13 00:34:39,151 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:34:39,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:34:39,152 INFO L82 PathProgramCache]: Analyzing trace with hash -1894185024, now seen corresponding path program 1 times [2021-10-13 00:34:39,152 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:34:39,152 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224715087] [2021-10-13 00:34:39,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:34:39,153 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:34:39,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:34:39,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:34:39,270 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:34:39,270 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224715087] [2021-10-13 00:34:39,270 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224715087] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:34:39,271 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:34:39,271 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 00:34:39,271 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273411917] [2021-10-13 00:34:39,272 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 00:34:39,273 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:34:39,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 00:34:39,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:34:39,278 INFO L87 Difference]: Start difference. First operand 243 states and 352 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 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) [2021-10-13 00:34:39,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:34:39,449 INFO L93 Difference]: Finished difference Result 921 states and 1339 transitions. [2021-10-13 00:34:39,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-13 00:34:39,451 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 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 28 [2021-10-13 00:34:39,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:34:39,456 INFO L225 Difference]: With dead ends: 921 [2021-10-13 00:34:39,456 INFO L226 Difference]: Without dead ends: 685 [2021-10-13 00:34:39,464 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 35.9ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-13 00:34:39,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 685 states. [2021-10-13 00:34:39,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 685 to 241. [2021-10-13 00:34:39,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 240 states have (on average 1.4416666666666667) internal successors, (346), 240 states have internal predecessors, (346), 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) [2021-10-13 00:34:39,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 346 transitions. [2021-10-13 00:34:39,492 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 346 transitions. Word has length 28 [2021-10-13 00:34:39,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:34:39,493 INFO L470 AbstractCegarLoop]: Abstraction has 241 states and 346 transitions. [2021-10-13 00:34:39,493 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 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) [2021-10-13 00:34:39,493 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 346 transitions. [2021-10-13 00:34:39,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-13 00:34:39,497 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:34:39,497 INFO L512 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, 1, 1] [2021-10-13 00:34:39,498 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-13 00:34:39,498 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:34:39,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:34:39,499 INFO L82 PathProgramCache]: Analyzing trace with hash -44877900, now seen corresponding path program 1 times [2021-10-13 00:34:39,499 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:34:39,503 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207258535] [2021-10-13 00:34:39,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:34:39,504 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:34:39,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:34:39,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:34:39,579 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:34:39,579 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207258535] [2021-10-13 00:34:39,579 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207258535] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:34:39,580 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:34:39,580 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 00:34:39,580 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055127824] [2021-10-13 00:34:39,581 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 00:34:39,581 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:34:39,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 00:34:39,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:34:39,582 INFO L87 Difference]: Start difference. First operand 241 states and 346 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 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) [2021-10-13 00:34:39,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:34:39,666 INFO L93 Difference]: Finished difference Result 655 states and 925 transitions. [2021-10-13 00:34:39,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 00:34:39,667 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 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 33 [2021-10-13 00:34:39,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:34:39,671 INFO L225 Difference]: With dead ends: 655 [2021-10-13 00:34:39,672 INFO L226 Difference]: Without dead ends: 421 [2021-10-13 00:34:39,673 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 23.1ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-13 00:34:39,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2021-10-13 00:34:39,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 265. [2021-10-13 00:34:39,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 264 states have (on average 1.4015151515151516) internal successors, (370), 264 states have internal predecessors, (370), 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) [2021-10-13 00:34:39,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 370 transitions. [2021-10-13 00:34:39,701 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 370 transitions. Word has length 33 [2021-10-13 00:34:39,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:34:39,701 INFO L470 AbstractCegarLoop]: Abstraction has 265 states and 370 transitions. [2021-10-13 00:34:39,701 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 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) [2021-10-13 00:34:39,701 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 370 transitions. [2021-10-13 00:34:39,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-13 00:34:39,702 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:34:39,703 INFO L512 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, 1, 1] [2021-10-13 00:34:39,703 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-13 00:34:39,703 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:34:39,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:34:39,704 INFO L82 PathProgramCache]: Analyzing trace with hash 656186678, now seen corresponding path program 1 times [2021-10-13 00:34:39,704 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:34:39,704 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577600451] [2021-10-13 00:34:39,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:34:39,704 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:34:39,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:34:39,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:34:39,779 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:34:39,780 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577600451] [2021-10-13 00:34:39,780 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577600451] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:34:39,780 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:34:39,780 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 00:34:39,780 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320905499] [2021-10-13 00:34:39,781 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 00:34:39,781 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:34:39,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:34:39,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:34:39,782 INFO L87 Difference]: Start difference. First operand 265 states and 370 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 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) [2021-10-13 00:34:39,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:34:39,847 INFO L93 Difference]: Finished difference Result 643 states and 887 transitions. [2021-10-13 00:34:39,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:34:39,847 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 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 33 [2021-10-13 00:34:39,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:34:39,851 INFO L225 Difference]: With dead ends: 643 [2021-10-13 00:34:39,851 INFO L226 Difference]: Without dead ends: 385 [2021-10-13 00:34:39,852 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.8ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:34:39,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2021-10-13 00:34:39,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 281. [2021-10-13 00:34:39,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 280 states have (on average 1.3785714285714286) internal successors, (386), 280 states have internal predecessors, (386), 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) [2021-10-13 00:34:39,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 386 transitions. [2021-10-13 00:34:39,892 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 386 transitions. Word has length 33 [2021-10-13 00:34:39,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:34:39,892 INFO L470 AbstractCegarLoop]: Abstraction has 281 states and 386 transitions. [2021-10-13 00:34:39,892 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 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) [2021-10-13 00:34:39,893 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 386 transitions. [2021-10-13 00:34:39,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-13 00:34:39,894 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:34:39,894 INFO L512 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, 1, 1] [2021-10-13 00:34:39,894 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-13 00:34:39,894 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:34:39,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:34:39,895 INFO L82 PathProgramCache]: Analyzing trace with hash 69380664, now seen corresponding path program 1 times [2021-10-13 00:34:39,895 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:34:39,895 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441455643] [2021-10-13 00:34:39,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:34:39,896 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:34:39,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:34:39,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:34:39,973 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:34:39,973 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441455643] [2021-10-13 00:34:39,973 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441455643] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:34:39,973 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:34:39,974 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 00:34:39,974 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489316090] [2021-10-13 00:34:39,974 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:34:39,974 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:34:39,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:34:39,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:34:39,981 INFO L87 Difference]: Start difference. First operand 281 states and 386 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 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) [2021-10-13 00:34:40,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:34:40,036 INFO L93 Difference]: Finished difference Result 659 states and 899 transitions. [2021-10-13 00:34:40,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:34:40,041 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 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 33 [2021-10-13 00:34:40,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:34:40,043 INFO L225 Difference]: With dead ends: 659 [2021-10-13 00:34:40,044 INFO L226 Difference]: Without dead ends: 385 [2021-10-13 00:34:40,044 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:34:40,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2021-10-13 00:34:40,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 385. [2021-10-13 00:34:40,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 384 states have (on average 1.3333333333333333) internal successors, (512), 384 states have internal predecessors, (512), 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) [2021-10-13 00:34:40,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 512 transitions. [2021-10-13 00:34:40,079 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 512 transitions. Word has length 33 [2021-10-13 00:34:40,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:34:40,081 INFO L470 AbstractCegarLoop]: Abstraction has 385 states and 512 transitions. [2021-10-13 00:34:40,081 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 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) [2021-10-13 00:34:40,081 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 512 transitions. [2021-10-13 00:34:40,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-10-13 00:34:40,083 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:34:40,083 INFO L512 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, 1, 1, 1] [2021-10-13 00:34:40,083 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-13 00:34:40,084 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:34:40,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:34:40,084 INFO L82 PathProgramCache]: Analyzing trace with hash 1964012792, now seen corresponding path program 1 times [2021-10-13 00:34:40,084 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:34:40,086 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14398604] [2021-10-13 00:34:40,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:34:40,086 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:34:40,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:34:40,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:34:40,165 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:34:40,166 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14398604] [2021-10-13 00:34:40,166 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14398604] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:34:40,166 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:34:40,166 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:34:40,166 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827967574] [2021-10-13 00:34:40,168 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:34:40,168 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:34:40,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:34:40,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:34:40,169 INFO L87 Difference]: Start difference. First operand 385 states and 512 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 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) [2021-10-13 00:34:40,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:34:40,229 INFO L93 Difference]: Finished difference Result 595 states and 799 transitions. [2021-10-13 00:34:40,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:34:40,230 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 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 34 [2021-10-13 00:34:40,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:34:40,234 INFO L225 Difference]: With dead ends: 595 [2021-10-13 00:34:40,234 INFO L226 Difference]: Without dead ends: 593 [2021-10-13 00:34:40,234 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:34:40,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2021-10-13 00:34:40,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 472. [2021-10-13 00:34:40,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 472 states, 471 states have (on average 1.3630573248407643) internal successors, (642), 471 states have internal predecessors, (642), 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) [2021-10-13 00:34:40,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 642 transitions. [2021-10-13 00:34:40,274 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 642 transitions. Word has length 34 [2021-10-13 00:34:40,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:34:40,275 INFO L470 AbstractCegarLoop]: Abstraction has 472 states and 642 transitions. [2021-10-13 00:34:40,275 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 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) [2021-10-13 00:34:40,275 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 642 transitions. [2021-10-13 00:34:40,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-13 00:34:40,277 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:34:40,277 INFO L512 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, 1, 1] [2021-10-13 00:34:40,278 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-13 00:34:40,278 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:34:40,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:34:40,279 INFO L82 PathProgramCache]: Analyzing trace with hash -1050282420, now seen corresponding path program 1 times [2021-10-13 00:34:40,279 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:34:40,281 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261537416] [2021-10-13 00:34:40,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:34:40,281 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:34:40,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:34:40,347 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 00:34:40,347 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:34:40,348 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261537416] [2021-10-13 00:34:40,348 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261537416] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:34:40,348 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:34:40,348 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:34:40,348 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572504198] [2021-10-13 00:34:40,349 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:34:40,349 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:34:40,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:34:40,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:34:40,351 INFO L87 Difference]: Start difference. First operand 472 states and 642 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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) [2021-10-13 00:34:40,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:34:40,424 INFO L93 Difference]: Finished difference Result 564 states and 763 transitions. [2021-10-13 00:34:40,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:34:40,425 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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 54 [2021-10-13 00:34:40,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:34:40,426 INFO L225 Difference]: With dead ends: 564 [2021-10-13 00:34:40,426 INFO L226 Difference]: Without dead ends: 234 [2021-10-13 00:34:40,427 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:34:40,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2021-10-13 00:34:40,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2021-10-13 00:34:40,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 233 states have (on average 1.3133047210300428) internal successors, (306), 233 states have internal predecessors, (306), 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) [2021-10-13 00:34:40,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 306 transitions. [2021-10-13 00:34:40,449 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 306 transitions. Word has length 54 [2021-10-13 00:34:40,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:34:40,449 INFO L470 AbstractCegarLoop]: Abstraction has 234 states and 306 transitions. [2021-10-13 00:34:40,450 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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) [2021-10-13 00:34:40,450 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 306 transitions. [2021-10-13 00:34:40,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-10-13 00:34:40,451 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:34:40,451 INFO L512 BasicCegarLoop]: trace histogram [2, 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, 1, 1, 1, 1, 1, 1] [2021-10-13 00:34:40,451 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-13 00:34:40,451 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:34:40,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:34:40,452 INFO L82 PathProgramCache]: Analyzing trace with hash -2090460060, now seen corresponding path program 1 times [2021-10-13 00:34:40,452 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:34:40,452 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632567973] [2021-10-13 00:34:40,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:34:40,453 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:34:40,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:34:40,568 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:34:40,569 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:34:40,569 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632567973] [2021-10-13 00:34:40,569 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632567973] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:34:40,569 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:34:40,570 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-13 00:34:40,570 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548169510] [2021-10-13 00:34:40,570 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 00:34:40,570 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:34:40,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 00:34:40,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-13 00:34:40,571 INFO L87 Difference]: Start difference. First operand 234 states and 306 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 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) [2021-10-13 00:34:40,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:34:40,854 INFO L93 Difference]: Finished difference Result 1269 states and 1689 transitions. [2021-10-13 00:34:40,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-13 00:34:40,854 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 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 58 [2021-10-13 00:34:40,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:34:40,861 INFO L225 Difference]: With dead ends: 1269 [2021-10-13 00:34:40,861 INFO L226 Difference]: Without dead ends: 1092 [2021-10-13 00:34:40,862 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 69.1ms TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2021-10-13 00:34:40,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1092 states. [2021-10-13 00:34:40,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1092 to 489. [2021-10-13 00:34:40,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 488 states have (on average 1.3012295081967213) internal successors, (635), 488 states have internal predecessors, (635), 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) [2021-10-13 00:34:40,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 635 transitions. [2021-10-13 00:34:40,937 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 635 transitions. Word has length 58 [2021-10-13 00:34:40,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:34:40,937 INFO L470 AbstractCegarLoop]: Abstraction has 489 states and 635 transitions. [2021-10-13 00:34:40,937 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 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) [2021-10-13 00:34:40,938 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 635 transitions. [2021-10-13 00:34:40,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-10-13 00:34:40,939 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:34:40,939 INFO L512 BasicCegarLoop]: trace histogram [2, 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, 1, 1, 1, 1, 1, 1] [2021-10-13 00:34:40,939 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-13 00:34:40,940 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:34:40,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:34:40,940 INFO L82 PathProgramCache]: Analyzing trace with hash -1832294622, now seen corresponding path program 1 times [2021-10-13 00:34:40,941 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:34:40,941 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053299477] [2021-10-13 00:34:40,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:34:40,941 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:34:40,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:34:41,000 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-10-13 00:34:41,000 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:34:41,001 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053299477] [2021-10-13 00:34:41,001 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053299477] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:34:41,001 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:34:41,001 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 00:34:41,002 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855732038] [2021-10-13 00:34:41,002 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 00:34:41,002 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:34:41,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 00:34:41,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:34:41,003 INFO L87 Difference]: Start difference. First operand 489 states and 635 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 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) [2021-10-13 00:34:41,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:34:41,078 INFO L93 Difference]: Finished difference Result 912 states and 1172 transitions. [2021-10-13 00:34:41,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 00:34:41,079 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 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 58 [2021-10-13 00:34:41,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:34:41,082 INFO L225 Difference]: With dead ends: 912 [2021-10-13 00:34:41,082 INFO L226 Difference]: Without dead ends: 480 [2021-10-13 00:34:41,083 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 18.8ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-13 00:34:41,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2021-10-13 00:34:41,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 246. [2021-10-13 00:34:41,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 245 states have (on average 1.2326530612244897) internal successors, (302), 245 states have internal predecessors, (302), 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) [2021-10-13 00:34:41,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 302 transitions. [2021-10-13 00:34:41,113 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 302 transitions. Word has length 58 [2021-10-13 00:34:41,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:34:41,113 INFO L470 AbstractCegarLoop]: Abstraction has 246 states and 302 transitions. [2021-10-13 00:34:41,113 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 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) [2021-10-13 00:34:41,114 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 302 transitions. [2021-10-13 00:34:41,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-10-13 00:34:41,115 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:34:41,115 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-10-13 00:34:41,115 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-13 00:34:41,115 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:34:41,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:34:41,116 INFO L82 PathProgramCache]: Analyzing trace with hash 1973254398, now seen corresponding path program 1 times [2021-10-13 00:34:41,116 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:34:41,116 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965728887] [2021-10-13 00:34:41,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:34:41,117 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:34:41,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:34:41,172 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 15 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:34:41,172 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:34:41,173 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965728887] [2021-10-13 00:34:41,173 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965728887] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:34:41,173 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1839823764] [2021-10-13 00:34:41,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:34:41,173 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:34:41,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ef87ce-a27c-48eb-ba4e-e833f20d8eaf/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:34:41,178 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ef87ce-a27c-48eb-ba4e-e833f20d8eaf/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:34:41,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ef87ce-a27c-48eb-ba4e-e833f20d8eaf/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-13 00:34:41,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:34:41,352 INFO L263 TraceCheckSpWp]: Trace formula consists of 444 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:34:41,359 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:34:41,622 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:34:41,622 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1839823764] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:34:41,622 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 00:34:41,622 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-10-13 00:34:41,623 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67951163] [2021-10-13 00:34:41,623 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:34:41,623 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:34:41,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:34:41,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:34:41,624 INFO L87 Difference]: Start difference. First operand 246 states and 302 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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) [2021-10-13 00:34:41,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:34:41,702 INFO L93 Difference]: Finished difference Result 416 states and 515 transitions. [2021-10-13 00:34:41,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:34:41,703 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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 58 [2021-10-13 00:34:41,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:34:41,703 INFO L225 Difference]: With dead ends: 416 [2021-10-13 00:34:41,703 INFO L226 Difference]: Without dead ends: 0 [2021-10-13 00:34:41,704 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.4ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:34:41,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-13 00:34:41,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-13 00:34:41,704 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) [2021-10-13 00:34:41,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-13 00:34:41,705 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 58 [2021-10-13 00:34:41,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:34:41,705 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 00:34:41,705 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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) [2021-10-13 00:34:41,705 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-13 00:34:41,705 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-13 00:34:41,708 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 00:34:41,708 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 00:34:41,708 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 00:34:41,747 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ef87ce-a27c-48eb-ba4e-e833f20d8eaf/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-13 00:34:41,925 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ef87ce-a27c-48eb-ba4e-e833f20d8eaf/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-10-13 00:34:41,926 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-13 00:34:41,931 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:34:41,932 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:34:41,933 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:34:41,933 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:34:41,937 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:34:42,165 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:34:42,167 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:34:42,167 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:34:42,169 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:34:42,393 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:34:42,393 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:34:42,394 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:34:42,852 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:34:43,097 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:34:43,098 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:34:43,099 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:34:43,100 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:34:43,114 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:34:43,114 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:34:43,115 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:34:43,115 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:34:43,116 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:34:43,116 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:34:43,117 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:34:43,117 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:34:43,335 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:34:43,387 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:34:43,388 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:34:43,389 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:34:43,390 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:34:43,390 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:34:43,560 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:34:43,561 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:34:43,562 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:34:43,563 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:34:43,624 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:34:43,636 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:34:43,881 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:34:43,882 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:34:43,915 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:34:43,916 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:34:43,916 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:34:44,014 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:34:44,015 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:34:44,016 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:34:47,818 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 619) no Hoare annotation was computed. [2021-10-13 00:34:47,818 INFO L857 garLoopResultBuilder]: For program point L498(lines 498 504) no Hoare annotation was computed. [2021-10-13 00:34:47,818 INFO L857 garLoopResultBuilder]: For program point L498-1(lines 498 504) no Hoare annotation was computed. [2021-10-13 00:34:47,818 INFO L857 garLoopResultBuilder]: For program point L498-2(lines 498 504) no Hoare annotation was computed. [2021-10-13 00:34:47,819 INFO L857 garLoopResultBuilder]: For program point L498-3(lines 498 504) no Hoare annotation was computed. [2021-10-13 00:34:47,819 INFO L857 garLoopResultBuilder]: For program point L498-4(lines 498 504) no Hoare annotation was computed. [2021-10-13 00:34:47,819 INFO L857 garLoopResultBuilder]: For program point L498-5(lines 498 504) no Hoare annotation was computed. [2021-10-13 00:34:47,819 INFO L857 garLoopResultBuilder]: For program point L433(lines 433 437) no Hoare annotation was computed. [2021-10-13 00:34:47,819 INFO L857 garLoopResultBuilder]: For program point L533(lines 533 537) no Hoare annotation was computed. [2021-10-13 00:34:47,819 INFO L857 garLoopResultBuilder]: For program point L533-1(lines 131 137) no Hoare annotation was computed. [2021-10-13 00:34:47,819 INFO L853 garLoopResultBuilder]: At program point L401(lines 1 988) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2021-10-13 00:34:47,820 INFO L853 garLoopResultBuilder]: At program point L138(lines 138 144) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse3 (<= 1 ~pumpRunning~0)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse4 (<= 2 ~waterLevel~0)) (.cse2 (= 1 ~systemActive~0))) (or (and .cse0 .cse1 .cse2 (<= 1 ~waterLevel~0)) (and .cse0 .cse1 (= 0 ~systemActive~0)) (and .cse3 .cse0 (= ~methAndRunningLastTime~0 0) .cse4 .cse2) (and .cse3 .cse0 (= ~methaneLevelCritical~0 0) .cse4 .cse2))) [2021-10-13 00:34:47,820 INFO L853 garLoopResultBuilder]: At program point L105(lines 56 106) the Hoare annotation is: false [2021-10-13 00:34:47,820 INFO L853 garLoopResultBuilder]: At program point L138-1(lines 138 144) the Hoare annotation is: false [2021-10-13 00:34:47,820 INFO L853 garLoopResultBuilder]: At program point L138-2(lines 138 144) the Hoare annotation is: false [2021-10-13 00:34:47,820 INFO L857 garLoopResultBuilder]: For program point L601(lines 601 608) no Hoare annotation was computed. [2021-10-13 00:34:47,820 INFO L860 garLoopResultBuilder]: At program point L601-1(lines 601 608) the Hoare annotation is: true [2021-10-13 00:34:47,821 INFO L853 garLoopResultBuilder]: At program point L503(lines 494 507) the Hoare annotation is: false [2021-10-13 00:34:47,821 INFO L853 garLoopResultBuilder]: At program point L503-1(lines 494 507) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (<= 2 ~waterLevel~0)) (.cse3 (= 1 ~systemActive~0))) (or (and .cse0 .cse1 (= ~methAndRunningLastTime~0 0) .cse2 .cse3) (and .cse0 .cse1 (= |ULTIMATE.start_isHighWaterSensorDry_#res| 1) .cse3 (<= 1 ~waterLevel~0)) (and .cse0 .cse1 (= ~methaneLevelCritical~0 0) .cse2 .cse3))) [2021-10-13 00:34:47,821 INFO L853 garLoopResultBuilder]: At program point L503-2(lines 494 507) the Hoare annotation is: false [2021-10-13 00:34:47,821 INFO L853 garLoopResultBuilder]: At program point L503-3(lines 494 507) the Hoare annotation is: false [2021-10-13 00:34:47,821 INFO L853 garLoopResultBuilder]: At program point L503-4(lines 494 507) the Hoare annotation is: false [2021-10-13 00:34:47,821 INFO L853 garLoopResultBuilder]: At program point L503-5(lines 494 507) the Hoare annotation is: false [2021-10-13 00:34:47,822 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 619) no Hoare annotation was computed. [2021-10-13 00:34:47,823 INFO L853 garLoopResultBuilder]: At program point L242(lines 237 245) the Hoare annotation is: (let ((.cse3 (= 1 ~systemActive~0)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= |ULTIMATE.start_isPumpRunning_#res| 0))) (or (and .cse0 .cse1 .cse2 .cse3 (<= 1 ~waterLevel~0)) (and (<= 1 ~pumpRunning~0) .cse0 (= ~methAndRunningLastTime~0 0) (<= 2 ~waterLevel~0) .cse3) (and .cse0 .cse1 .cse2 (= 0 ~systemActive~0)))) [2021-10-13 00:34:47,824 INFO L853 garLoopResultBuilder]: At program point L242-1(lines 237 245) the Hoare annotation is: false [2021-10-13 00:34:47,824 INFO L853 garLoopResultBuilder]: At program point L242-2(lines 237 245) the Hoare annotation is: false [2021-10-13 00:34:47,826 INFO L857 garLoopResultBuilder]: For program point L77(lines 77 83) no Hoare annotation was computed. [2021-10-13 00:34:47,826 INFO L853 garLoopResultBuilder]: At program point L77-1(lines 77 83) the Hoare annotation is: (let ((.cse1 (= 1 ~systemActive~0)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse2 (= ~pumpRunning~0 0)) (.cse3 (= ~methAndRunningLastTime~0 0))) (or (and (<= 1 ~pumpRunning~0) .cse0 (<= 2 ~waterLevel~0) .cse1) (and .cse0 .cse2 .cse3 .cse1 (<= 1 ~waterLevel~0)) (and .cse0 .cse2 .cse3 (= 0 ~systemActive~0)))) [2021-10-13 00:34:47,826 INFO L853 garLoopResultBuilder]: At program point L409(lines 404 412) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2021-10-13 00:34:47,826 INFO L853 garLoopResultBuilder]: At program point L343(lines 338 345) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2021-10-13 00:34:47,827 INFO L857 garLoopResultBuilder]: For program point L310(lines 310 314) no Hoare annotation was computed. [2021-10-13 00:34:47,827 INFO L857 garLoopResultBuilder]: For program point L310-2(lines 310 314) no Hoare annotation was computed. [2021-10-13 00:34:47,828 INFO L857 garLoopResultBuilder]: For program point L310-3(lines 310 314) no Hoare annotation was computed. [2021-10-13 00:34:47,828 INFO L857 garLoopResultBuilder]: For program point L310-5(lines 310 314) no Hoare annotation was computed. [2021-10-13 00:34:47,828 INFO L857 garLoopResultBuilder]: For program point L310-6(lines 310 314) no Hoare annotation was computed. [2021-10-13 00:34:47,832 INFO L857 garLoopResultBuilder]: For program point L310-8(lines 310 314) no Hoare annotation was computed. [2021-10-13 00:34:47,832 INFO L860 garLoopResultBuilder]: At program point L610(lines 591 613) the Hoare annotation is: true [2021-10-13 00:34:47,832 INFO L853 garLoopResultBuilder]: At program point L577(lines 573 579) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2021-10-13 00:34:47,833 INFO L857 garLoopResultBuilder]: For program point L445(lines 445 449) no Hoare annotation was computed. [2021-10-13 00:34:47,833 INFO L853 garLoopResultBuilder]: At program point L513(lines 508 516) the Hoare annotation is: (and (<= 1 ~pumpRunning~0) (= ULTIMATE.start_test_~splverifierCounter~0 0) (= 1 ~systemActive~0) (<= 1 ~waterLevel~0) (<= |ULTIMATE.start_isLowWaterSensorDry_#res| 0) (<= 0 |ULTIMATE.start_isLowWaterSensorDry_#res|)) [2021-10-13 00:34:47,833 INFO L853 garLoopResultBuilder]: At program point L513-1(lines 508 516) the Hoare annotation is: false [2021-10-13 00:34:47,833 INFO L853 garLoopResultBuilder]: At program point L513-2(lines 508 516) the Hoare annotation is: false [2021-10-13 00:34:47,833 INFO L853 garLoopResultBuilder]: At program point L316(lines 301 319) the Hoare annotation is: (and (<= 1 ~pumpRunning~0) (= |ULTIMATE.start_isLowWaterLevel_#res| 1) (= ULTIMATE.start_test_~splverifierCounter~0 0) (= 1 ~systemActive~0) (= ULTIMATE.start_isLowWaterLevel_~tmp___0~2 1) (< 0 (+ ULTIMATE.start_isLowWaterLevel_~tmp~4 1)) (<= 1 ~waterLevel~0) (<= |ULTIMATE.start_isLowWaterSensorDry_#res| 0) (<= 0 |ULTIMATE.start_isLowWaterSensorDry_#res|) (<= ULTIMATE.start_isLowWaterLevel_~tmp~4 0)) [2021-10-13 00:34:47,833 INFO L853 garLoopResultBuilder]: At program point L316-1(lines 301 319) the Hoare annotation is: false [2021-10-13 00:34:47,833 INFO L853 garLoopResultBuilder]: At program point L316-2(lines 301 319) the Hoare annotation is: false [2021-10-13 00:34:47,833 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-13 00:34:47,833 INFO L857 garLoopResultBuilder]: For program point L87(lines 87 100) no Hoare annotation was computed. [2021-10-13 00:34:47,833 INFO L857 garLoopResultBuilder]: For program point L354(lines 354 371) no Hoare annotation was computed. [2021-10-13 00:34:47,833 INFO L853 garLoopResultBuilder]: At program point L354-1(lines 1 988) the Hoare annotation is: (let ((.cse1 (= 1 ~systemActive~0)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse2 (= ~pumpRunning~0 0)) (.cse3 (= ~methAndRunningLastTime~0 0))) (or (and (<= 1 ~pumpRunning~0) .cse0 (<= 2 ~waterLevel~0) .cse1) (and .cse0 .cse2 .cse3 .cse1 (<= 1 ~waterLevel~0)) (and .cse0 .cse2 .cse3 (= 0 ~systemActive~0)))) [2021-10-13 00:34:47,833 INFO L857 garLoopResultBuilder]: For program point L354-2(lines 354 371) no Hoare annotation was computed. [2021-10-13 00:34:47,834 INFO L853 garLoopResultBuilder]: At program point L354-3(lines 1 988) the Hoare annotation is: false [2021-10-13 00:34:47,834 INFO L857 garLoopResultBuilder]: For program point L354-4(lines 354 371) no Hoare annotation was computed. [2021-10-13 00:34:47,834 INFO L857 garLoopResultBuilder]: For program point L189(lines 189 206) no Hoare annotation was computed. [2021-10-13 00:34:47,834 INFO L853 garLoopResultBuilder]: At program point L354-5(lines 1 988) the Hoare annotation is: false [2021-10-13 00:34:47,834 INFO L857 garLoopResultBuilder]: For program point L189-1(lines 189 206) no Hoare annotation was computed. [2021-10-13 00:34:47,834 INFO L857 garLoopResultBuilder]: For program point L189-2(lines 189 206) no Hoare annotation was computed. [2021-10-13 00:34:47,834 INFO L857 garLoopResultBuilder]: For program point L619(line 619) no Hoare annotation was computed. [2021-10-13 00:34:47,834 INFO L857 garLoopResultBuilder]: For program point L619-1(line 619) no Hoare annotation was computed. [2021-10-13 00:34:47,834 INFO L857 garLoopResultBuilder]: For program point L619-2(line 619) no Hoare annotation was computed. [2021-10-13 00:34:47,834 INFO L857 garLoopResultBuilder]: For program point L421(lines 421 425) no Hoare annotation was computed. [2021-10-13 00:34:47,834 INFO L857 garLoopResultBuilder]: For program point L421-3(lines 421 425) no Hoare annotation was computed. [2021-10-13 00:34:47,834 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-13 00:34:47,834 INFO L857 garLoopResultBuilder]: For program point L421-6(lines 421 425) no Hoare annotation was computed. [2021-10-13 00:34:47,835 INFO L857 garLoopResultBuilder]: For program point L58(lines 57 104) no Hoare annotation was computed. [2021-10-13 00:34:47,835 INFO L857 garLoopResultBuilder]: For program point L59(lines 59 63) no Hoare annotation was computed. [2021-10-13 00:34:47,835 INFO L857 garLoopResultBuilder]: For program point L324(lines 324 330) no Hoare annotation was computed. [2021-10-13 00:34:47,835 INFO L853 garLoopResultBuilder]: At program point L324-1(lines 324 330) the Hoare annotation is: (and (= ULTIMATE.start_test_~splverifierCounter~0 0) (= ~pumpRunning~0 0)) [2021-10-13 00:34:47,835 INFO L857 garLoopResultBuilder]: For program point L291(lines 291 295) no Hoare annotation was computed. [2021-10-13 00:34:47,835 INFO L857 garLoopResultBuilder]: For program point L291-2(lines 291 295) no Hoare annotation was computed. [2021-10-13 00:34:47,835 INFO L857 garLoopResultBuilder]: For program point L291-3(lines 291 295) no Hoare annotation was computed. [2021-10-13 00:34:47,835 INFO L857 garLoopResultBuilder]: For program point L291-5(lines 291 295) no Hoare annotation was computed. [2021-10-13 00:34:47,835 INFO L857 garLoopResultBuilder]: For program point L93(lines 93 99) no Hoare annotation was computed. [2021-10-13 00:34:47,835 INFO L857 garLoopResultBuilder]: For program point L291-6(lines 291 295) no Hoare annotation was computed. [2021-10-13 00:34:47,835 INFO L853 garLoopResultBuilder]: At program point L93-1(lines 131 137) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= 1 ~systemActive~0))) (or (and .cse0 .cse1 (= 0 ~systemActive~0)) (and (<= 1 ~pumpRunning~0) .cse0 (<= 2 ~waterLevel~0) .cse2) (and .cse0 .cse1 (= ~methAndRunningLastTime~0 0) .cse2 (<= 1 ~waterLevel~0)))) [2021-10-13 00:34:47,835 INFO L857 garLoopResultBuilder]: For program point L291-8(lines 291 295) no Hoare annotation was computed. [2021-10-13 00:34:47,836 INFO L857 garLoopResultBuilder]: For program point L291-9(lines 291 295) no Hoare annotation was computed. [2021-10-13 00:34:47,836 INFO L857 garLoopResultBuilder]: For program point L291-11(lines 291 295) no Hoare annotation was computed. [2021-10-13 00:34:47,836 INFO L857 garLoopResultBuilder]: For program point L291-12(lines 291 295) no Hoare annotation was computed. [2021-10-13 00:34:47,836 INFO L857 garLoopResultBuilder]: For program point L291-14(lines 291 295) no Hoare annotation was computed. [2021-10-13 00:34:47,836 INFO L857 garLoopResultBuilder]: For program point L291-15(lines 291 295) no Hoare annotation was computed. [2021-10-13 00:34:47,836 INFO L857 garLoopResultBuilder]: For program point L291-17(lines 291 295) no Hoare annotation was computed. [2021-10-13 00:34:47,836 INFO L857 garLoopResultBuilder]: For program point L358(lines 358 368) no Hoare annotation was computed. [2021-10-13 00:34:47,836 INFO L857 garLoopResultBuilder]: For program point L358-2(lines 358 368) no Hoare annotation was computed. [2021-10-13 00:34:47,836 INFO L857 garLoopResultBuilder]: For program point L358-4(lines 358 368) no Hoare annotation was computed. [2021-10-13 00:34:47,836 INFO L857 garLoopResultBuilder]: For program point L193(lines 193 201) no Hoare annotation was computed. [2021-10-13 00:34:47,836 INFO L857 garLoopResultBuilder]: For program point L193-1(lines 193 201) no Hoare annotation was computed. [2021-10-13 00:34:47,836 INFO L857 garLoopResultBuilder]: For program point L193-2(lines 193 201) no Hoare annotation was computed. [2021-10-13 00:34:47,841 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-13 00:34:47,841 INFO L853 garLoopResultBuilder]: At program point L458(lines 453 461) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse3 (<= 1 ~pumpRunning~0)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse4 (<= 2 ~waterLevel~0)) (.cse2 (= 1 ~systemActive~0))) (or (and .cse0 .cse1 .cse2 (<= 1 ~waterLevel~0)) (and .cse0 .cse1 (= 0 ~systemActive~0)) (and .cse3 .cse0 (= ~methAndRunningLastTime~0 0) .cse4 .cse2) (and .cse3 .cse0 (= |ULTIMATE.start_isMethaneLevelCritical_#res| 0) (= ~methaneLevelCritical~0 0) .cse4 .cse2))) [2021-10-13 00:34:47,841 INFO L853 garLoopResultBuilder]: At program point L458-1(lines 453 461) the Hoare annotation is: false [2021-10-13 00:34:47,841 INFO L853 garLoopResultBuilder]: At program point L458-2(lines 453 461) the Hoare annotation is: false [2021-10-13 00:34:47,841 INFO L857 garLoopResultBuilder]: For program point L359(lines 359 365) no Hoare annotation was computed. [2021-10-13 00:34:47,842 INFO L857 garLoopResultBuilder]: For program point L359-2(lines 359 365) no Hoare annotation was computed. [2021-10-13 00:34:47,842 INFO L857 garLoopResultBuilder]: For program point L359-4(lines 359 365) no Hoare annotation was computed. [2021-10-13 00:34:47,842 INFO L857 garLoopResultBuilder]: For program point L163(lines 163 180) no Hoare annotation was computed. [2021-10-13 00:34:47,843 INFO L857 garLoopResultBuilder]: For program point L163-1(lines 163 180) no Hoare annotation was computed. [2021-10-13 00:34:47,843 INFO L857 garLoopResultBuilder]: For program point L163-2(lines 163 180) no Hoare annotation was computed. [2021-10-13 00:34:47,843 INFO L857 garLoopResultBuilder]: For program point L163-3(lines 163 180) no Hoare annotation was computed. [2021-10-13 00:34:47,843 INFO L857 garLoopResultBuilder]: For program point L163-4(lines 163 180) no Hoare annotation was computed. [2021-10-13 00:34:47,843 INFO L857 garLoopResultBuilder]: For program point L163-5(lines 163 180) no Hoare annotation was computed. [2021-10-13 00:34:47,843 INFO L853 garLoopResultBuilder]: At program point L131(lines 130 149) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse4 (= ~methAndRunningLastTime~0 0)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (<= 1 ~waterLevel~0))) (or (and .cse0 .cse1 (= ~methaneLevelCritical~0 0) .cse2 .cse3) (and .cse0 .cse1 .cse4 (<= 2 ~waterLevel~0) .cse2) (and .cse0 .cse1 (= 0 ~systemActive~0)) (and .cse0 .cse1 .cse4 .cse2 (= ~waterLevel~0 1)) (and (<= 1 ~pumpRunning~0) .cse0 .cse2 .cse3))) [2021-10-13 00:34:47,843 INFO L857 garLoopResultBuilder]: For program point L131-1(lines 131 137) no Hoare annotation was computed. [2021-10-13 00:34:47,843 INFO L853 garLoopResultBuilder]: At program point L131-2(lines 130 149) the Hoare annotation is: false [2021-10-13 00:34:47,844 INFO L853 garLoopResultBuilder]: At program point L131-3(lines 130 149) the Hoare annotation is: false [2021-10-13 00:34:47,844 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-13 00:34:47,844 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 619) no Hoare annotation was computed. [2021-10-13 00:34:47,844 INFO L853 garLoopResultBuilder]: At program point L297(lines 282 300) the Hoare annotation is: false [2021-10-13 00:34:47,844 INFO L853 garLoopResultBuilder]: At program point L297-1(lines 282 300) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (<= 2 ~waterLevel~0)) (.cse3 (= 1 ~systemActive~0))) (or (and .cse0 .cse1 (= ~methAndRunningLastTime~0 0) .cse2 .cse3) (and .cse0 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 0) .cse1 (= |ULTIMATE.start_isHighWaterLevel_#res| 0) .cse3 (<= 1 ~waterLevel~0)) (and .cse0 .cse1 (= ~methaneLevelCritical~0 0) .cse2 .cse3))) [2021-10-13 00:34:47,844 INFO L853 garLoopResultBuilder]: At program point L297-2(lines 282 300) the Hoare annotation is: false [2021-10-13 00:34:47,844 INFO L853 garLoopResultBuilder]: At program point L297-3(lines 282 300) the Hoare annotation is: false [2021-10-13 00:34:47,844 INFO L853 garLoopResultBuilder]: At program point L297-4(lines 282 300) the Hoare annotation is: false [2021-10-13 00:34:47,845 INFO L853 garLoopResultBuilder]: At program point L297-5(lines 282 300) the Hoare annotation is: false [2021-10-13 00:34:47,845 INFO L853 garLoopResultBuilder]: At program point L529-2(lines 529 543) the Hoare annotation is: false [2021-10-13 00:34:47,845 INFO L857 garLoopResultBuilder]: For program point L67(lines 67 73) no Hoare annotation was computed. [2021-10-13 00:34:47,845 INFO L853 garLoopResultBuilder]: At program point L67-1(lines 67 73) the Hoare annotation is: (let ((.cse1 (= 1 ~systemActive~0)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse2 (= ~pumpRunning~0 0)) (.cse3 (= ~methAndRunningLastTime~0 0))) (or (and (<= 1 ~pumpRunning~0) .cse0 (<= 2 ~waterLevel~0) .cse1) (and .cse0 .cse2 .cse3 .cse1 (<= 1 ~waterLevel~0)) (and .cse0 .cse2 .cse3 (= 0 ~systemActive~0)))) [2021-10-13 00:34:47,845 INFO L857 garLoopResultBuilder]: For program point L530(line 530) no Hoare annotation was computed. [2021-10-13 00:34:47,845 INFO L857 garLoopResultBuilder]: For program point L167(lines 167 175) no Hoare annotation was computed. [2021-10-13 00:34:47,845 INFO L857 garLoopResultBuilder]: For program point L167-1(lines 167 175) no Hoare annotation was computed. [2021-10-13 00:34:47,845 INFO L857 garLoopResultBuilder]: For program point L167-2(lines 167 175) no Hoare annotation was computed. [2021-10-13 00:34:47,846 INFO L857 garLoopResultBuilder]: For program point L167-3(lines 167 175) no Hoare annotation was computed. [2021-10-13 00:34:47,846 INFO L857 garLoopResultBuilder]: For program point L167-4(lines 167 175) no Hoare annotation was computed. [2021-10-13 00:34:47,846 INFO L857 garLoopResultBuilder]: For program point L167-5(lines 167 175) no Hoare annotation was computed. [2021-10-13 00:34:47,850 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 00:34:47,907 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 12:34:47 BoogieIcfgContainer [2021-10-13 00:34:47,907 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 00:34:47,908 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 00:34:47,908 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 00:34:47,908 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 00:34:47,908 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:34:37" (3/4) ... [2021-10-13 00:34:47,911 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-13 00:34:47,946 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2021-10-13 00:34:47,947 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2021-10-13 00:34:47,948 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-10-13 00:34:47,949 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-10-13 00:34:47,950 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-13 00:34:47,951 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 00:34:47,952 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 00:34:47,974 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((splverifierCounter == 0 && pumpRunning == 0) && 1 == systemActive) && 1 <= waterLevel) || ((splverifierCounter == 0 && pumpRunning == 0) && 0 == systemActive)) || ((((1 <= pumpRunning && splverifierCounter == 0) && methAndRunningLastTime == 0) && 2 <= waterLevel) && 1 == systemActive)) || (((((1 <= pumpRunning && splverifierCounter == 0) && \result == 0) && methaneLevelCritical == 0) && 2 <= waterLevel) && 1 == systemActive) [2021-10-13 00:34:47,975 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((1 <= pumpRunning && splverifierCounter == 0) && 1 == systemActive) && 1 <= waterLevel) && \result <= 0) && 0 <= \result [2021-10-13 00:34:47,975 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((splverifierCounter == 0 && pumpRunning == 0) && methAndRunningLastTime == 0) && 2 <= waterLevel) && 1 == systemActive) || ((((splverifierCounter == 0 && pumpRunning == 0) && \result == 1) && 1 == systemActive) && 1 <= waterLevel)) || ((((splverifierCounter == 0 && pumpRunning == 0) && methaneLevelCritical == 0) && 2 <= waterLevel) && 1 == systemActive) [2021-10-13 00:34:47,976 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((splverifierCounter == 0 && pumpRunning == 0) && \result == 0) && 1 == systemActive) && 1 <= waterLevel) || ((((1 <= pumpRunning && splverifierCounter == 0) && methAndRunningLastTime == 0) && 2 <= waterLevel) && 1 == systemActive)) || (((splverifierCounter == 0 && pumpRunning == 0) && \result == 0) && 0 == systemActive) [2021-10-13 00:34:47,976 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((1 <= pumpRunning && \result == 1) && splverifierCounter == 0) && 1 == systemActive) && tmp___0 == 1) && 0 < tmp + 1) && 1 <= waterLevel) && \result <= 0) && 0 <= \result) && tmp <= 0 [2021-10-13 00:34:47,977 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((splverifierCounter == 0 && pumpRunning == 0) && methAndRunningLastTime == 0) && 2 <= waterLevel) && 1 == systemActive) || (((((splverifierCounter == 0 && tmp___0 == 0) && pumpRunning == 0) && \result == 0) && 1 == systemActive) && 1 <= waterLevel)) || ((((splverifierCounter == 0 && pumpRunning == 0) && methaneLevelCritical == 0) && 2 <= waterLevel) && 1 == systemActive) [2021-10-13 00:34:48,029 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ef87ce-a27c-48eb-ba4e-e833f20d8eaf/bin/uautomizer-WNIpwEf4Nt/witness.graphml [2021-10-13 00:34:48,029 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 00:34:48,030 INFO L168 Benchmark]: Toolchain (without parser) took 11857.85 ms. Allocated memory was 121.6 MB in the beginning and 211.8 MB in the end (delta: 90.2 MB). Free memory was 83.1 MB in the beginning and 137.2 MB in the end (delta: -54.1 MB). Peak memory consumption was 37.0 MB. Max. memory is 16.1 GB. [2021-10-13 00:34:48,030 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 121.6 MB. Free memory is still 100.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:34:48,031 INFO L168 Benchmark]: CACSL2BoogieTranslator took 485.63 ms. Allocated memory is still 121.6 MB. Free memory was 83.0 MB in the beginning and 87.6 MB in the end (delta: -4.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 00:34:48,031 INFO L168 Benchmark]: Boogie Procedure Inliner took 66.15 ms. Allocated memory is still 121.6 MB. Free memory was 87.6 MB in the beginning and 83.9 MB in the end (delta: 3.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:34:48,031 INFO L168 Benchmark]: Boogie Preprocessor took 78.14 ms. Allocated memory is still 121.6 MB. Free memory was 83.9 MB in the beginning and 81.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:34:48,032 INFO L168 Benchmark]: RCFGBuilder took 1045.39 ms. Allocated memory is still 121.6 MB. Free memory was 81.3 MB in the beginning and 86.2 MB in the end (delta: -4.9 MB). Peak memory consumption was 39.7 MB. Max. memory is 16.1 GB. [2021-10-13 00:34:48,032 INFO L168 Benchmark]: TraceAbstraction took 10044.08 ms. Allocated memory was 121.6 MB in the beginning and 211.8 MB in the end (delta: 90.2 MB). Free memory was 86.2 MB in the beginning and 147.6 MB in the end (delta: -61.4 MB). Peak memory consumption was 121.3 MB. Max. memory is 16.1 GB. [2021-10-13 00:34:48,032 INFO L168 Benchmark]: Witness Printer took 121.18 ms. Allocated memory is still 211.8 MB. Free memory was 147.6 MB in the beginning and 137.2 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 00:34:48,034 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 121.6 MB. Free memory is still 100.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 485.63 ms. Allocated memory is still 121.6 MB. Free memory was 83.0 MB in the beginning and 87.6 MB in the end (delta: -4.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 66.15 ms. Allocated memory is still 121.6 MB. Free memory was 87.6 MB in the beginning and 83.9 MB in the end (delta: 3.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 78.14 ms. Allocated memory is still 121.6 MB. Free memory was 83.9 MB in the beginning and 81.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1045.39 ms. Allocated memory is still 121.6 MB. Free memory was 81.3 MB in the beginning and 86.2 MB in the end (delta: -4.9 MB). Peak memory consumption was 39.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 10044.08 ms. Allocated memory was 121.6 MB in the beginning and 211.8 MB in the end (delta: 90.2 MB). Free memory was 86.2 MB in the beginning and 147.6 MB in the end (delta: -61.4 MB). Peak memory consumption was 121.3 MB. Max. memory is 16.1 GB. * Witness Printer took 121.18 ms. Allocated memory is still 211.8 MB. Free memory was 147.6 MB in the beginning and 137.2 MB in the end (delta: 10.5 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, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 619]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 619]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 619]: 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, 123 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 9926.3ms, OverallIterations: 14, TraceHistogramMax: 2, EmptinessCheckTime: 42.2ms, AutomataDifference: 1317.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 5892.7ms, InitialAbstractionConstructionTime: 13.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1395 SDtfs, 1474 SDslu, 2073 SDs, 0 SdLazy, 242 SolverSat, 56 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 357.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 135 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 215.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=489occurred in iteration=12, InterpolantAutomatonStates: 66, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 435.0ms AutomataMinimizationTime, 14 MinimizatonAttempts, 1992 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 45 LocationsWithAnnotation, 45 PreInvPairs, 171 NumberOfFragments, 654 HoareAnnotationTreeSize, 45 FomulaSimplifications, 314637 FormulaSimplificationTreeSizeReduction, 2086.5ms HoareSimplificationTime, 45 FomulaSimplificationsInter, 68253 FormulaSimplificationTreeSizeReductionInter, 3788.3ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 98.7ms SsaConstructionTime, 554.9ms SatisfiabilityAnalysisTime, 990.7ms InterpolantComputationTime, 561 NumberOfCodeBlocks, 561 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 546 ConstructedInterpolants, 0 QuantifiedInterpolants, 997 SizeOfPredicates, 0 NumberOfNonLiveVariables, 444 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 15 InterpolantComputations, 14 PerfectInterpolantSequences, 89/98 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: 282]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 138]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 282]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 453]: Loop Invariant Derived loop invariant: (((((splverifierCounter == 0 && pumpRunning == 0) && 1 == systemActive) && 1 <= waterLevel) || ((splverifierCounter == 0 && pumpRunning == 0) && 0 == systemActive)) || ((((1 <= pumpRunning && splverifierCounter == 0) && methAndRunningLastTime == 0) && 2 <= waterLevel) && 1 == systemActive)) || (((((1 <= pumpRunning && splverifierCounter == 0) && \result == 0) && methaneLevelCritical == 0) && 2 <= waterLevel) && 1 == systemActive) - InvariantResult [Line: 301]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 494]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: ((((1 <= pumpRunning && splverifierCounter == 0) && 2 <= waterLevel) && 1 == systemActive) || ((((splverifierCounter == 0 && pumpRunning == 0) && methAndRunningLastTime == 0) && 1 == systemActive) && 1 <= waterLevel)) || (((splverifierCounter == 0 && pumpRunning == 0) && methAndRunningLastTime == 0) && 0 == systemActive) - InvariantResult [Line: 282]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 453]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 130]: Loop Invariant Derived loop invariant: (((((((splverifierCounter == 0 && pumpRunning == 0) && methaneLevelCritical == 0) && 1 == systemActive) && 1 <= waterLevel) || ((((splverifierCounter == 0 && pumpRunning == 0) && methAndRunningLastTime == 0) && 2 <= waterLevel) && 1 == systemActive)) || ((splverifierCounter == 0 && pumpRunning == 0) && 0 == systemActive)) || ((((splverifierCounter == 0 && pumpRunning == 0) && methAndRunningLastTime == 0) && 1 == systemActive) && waterLevel == 1)) || (((1 <= pumpRunning && splverifierCounter == 0) && 1 == systemActive) && 1 <= waterLevel) - InvariantResult [Line: 131]: Loop Invariant Derived loop invariant: (((splverifierCounter == 0 && pumpRunning == 0) && 0 == systemActive) || (((1 <= pumpRunning && splverifierCounter == 0) && 2 <= waterLevel) && 1 == systemActive)) || ((((splverifierCounter == 0 && pumpRunning == 0) && methAndRunningLastTime == 0) && 1 == systemActive) && 1 <= waterLevel) - InvariantResult [Line: 508]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 237]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 301]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 301]: Loop Invariant Derived loop invariant: ((((((((1 <= pumpRunning && \result == 1) && splverifierCounter == 0) && 1 == systemActive) && tmp___0 == 1) && 0 < tmp + 1) && 1 <= waterLevel) && \result <= 0) && 0 <= \result) && tmp <= 0 - InvariantResult [Line: 529]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 494]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 494]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 56]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 237]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 591]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 508]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 77]: Loop Invariant Derived loop invariant: ((((1 <= pumpRunning && splverifierCounter == 0) && 2 <= waterLevel) && 1 == systemActive) || ((((splverifierCounter == 0 && pumpRunning == 0) && methAndRunningLastTime == 0) && 1 == systemActive) && 1 <= waterLevel)) || (((splverifierCounter == 0 && pumpRunning == 0) && methAndRunningLastTime == 0) && 0 == systemActive) - InvariantResult [Line: 324]: Loop Invariant Derived loop invariant: splverifierCounter == 0 && pumpRunning == 0 - InvariantResult [Line: 404]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 338]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 138]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 494]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: ((((1 <= pumpRunning && splverifierCounter == 0) && 2 <= waterLevel) && 1 == systemActive) || ((((splverifierCounter == 0 && pumpRunning == 0) && methAndRunningLastTime == 0) && 1 == systemActive) && 1 <= waterLevel)) || (((splverifierCounter == 0 && pumpRunning == 0) && methAndRunningLastTime == 0) && 0 == systemActive) - InvariantResult [Line: 453]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 130]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 282]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 508]: Loop Invariant Derived loop invariant: ((((1 <= pumpRunning && splverifierCounter == 0) && 1 == systemActive) && 1 <= waterLevel) && \result <= 0) && 0 <= \result - InvariantResult [Line: 494]: Loop Invariant Derived loop invariant: (((((splverifierCounter == 0 && pumpRunning == 0) && methAndRunningLastTime == 0) && 2 <= waterLevel) && 1 == systemActive) || ((((splverifierCounter == 0 && pumpRunning == 0) && \result == 1) && 1 == systemActive) && 1 <= waterLevel)) || ((((splverifierCounter == 0 && pumpRunning == 0) && methaneLevelCritical == 0) && 2 <= waterLevel) && 1 == systemActive) - InvariantResult [Line: 138]: Loop Invariant Derived loop invariant: (((((splverifierCounter == 0 && pumpRunning == 0) && 1 == systemActive) && 1 <= waterLevel) || ((splverifierCounter == 0 && pumpRunning == 0) && 0 == systemActive)) || ((((1 <= pumpRunning && splverifierCounter == 0) && methAndRunningLastTime == 0) && 2 <= waterLevel) && 1 == systemActive)) || ((((1 <= pumpRunning && splverifierCounter == 0) && methaneLevelCritical == 0) && 2 <= waterLevel) && 1 == systemActive) - InvariantResult [Line: 130]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 237]: Loop Invariant Derived loop invariant: (((((splverifierCounter == 0 && pumpRunning == 0) && \result == 0) && 1 == systemActive) && 1 <= waterLevel) || ((((1 <= pumpRunning && splverifierCounter == 0) && methAndRunningLastTime == 0) && 2 <= waterLevel) && 1 == systemActive)) || (((splverifierCounter == 0 && pumpRunning == 0) && \result == 0) && 0 == systemActive) - InvariantResult [Line: 601]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 282]: Loop Invariant Derived loop invariant: (((((splverifierCounter == 0 && pumpRunning == 0) && methAndRunningLastTime == 0) && 2 <= waterLevel) && 1 == systemActive) || (((((splverifierCounter == 0 && tmp___0 == 0) && pumpRunning == 0) && \result == 0) && 1 == systemActive) && 1 <= waterLevel)) || ((((splverifierCounter == 0 && pumpRunning == 0) && methaneLevelCritical == 0) && 2 <= waterLevel) && 1 == systemActive) - InvariantResult [Line: 573]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 282]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 494]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2021-10-13 00:34:48,094 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ef87ce-a27c-48eb-ba4e-e833f20d8eaf/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...