./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/openssl-simplified/s3_clnt_2.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/openssl-simplified/s3_clnt_2.cil-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a774a376fc4e4a689a90a1312354f429292327ca ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/openssl-simplified/s3_clnt_2.cil-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a774a376fc4e4a689a90a1312354f429292327ca ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-16 03:06:31,611 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 03:06:31,613 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 03:06:31,659 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 03:06:31,660 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 03:06:31,661 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 03:06:31,664 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 03:06:31,667 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 03:06:31,671 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 03:06:31,672 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 03:06:31,674 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 03:06:31,676 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 03:06:31,677 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 03:06:31,679 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 03:06:31,681 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 03:06:31,683 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 03:06:31,685 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 03:06:31,687 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 03:06:31,690 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 03:06:31,694 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 03:06:31,697 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 03:06:31,699 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 03:06:31,707 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 03:06:31,709 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 03:06:31,714 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 03:06:31,730 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 03:06:31,731 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 03:06:31,733 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 03:06:31,733 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 03:06:31,735 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 03:06:31,735 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 03:06:31,737 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 03:06:31,738 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 03:06:31,739 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 03:06:31,741 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 03:06:31,741 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 03:06:31,742 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 03:06:31,746 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 03:06:31,747 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 03:06:31,748 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 03:06:31,749 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 03:06:31,752 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-16 03:06:31,801 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 03:06:31,804 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 03:06:31,806 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 03:06:31,807 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 03:06:31,807 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 03:06:31,807 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 03:06:31,808 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-16 03:06:31,808 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 03:06:31,808 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 03:06:31,808 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-16 03:06:31,810 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-16 03:06:31,810 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 03:06:31,811 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-16 03:06:31,811 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-16 03:06:31,811 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-16 03:06:31,812 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 03:06:31,812 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 03:06:31,813 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 03:06:31,813 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 03:06:31,813 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 03:06:31,813 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 03:06:31,814 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 03:06:31,814 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 03:06:31,814 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 03:06:31,814 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 03:06:31,815 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 03:06:31,815 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 03:06:31,815 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 03:06:31,816 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 03:06:31,818 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 03:06:31,818 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 03:06:31,819 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 03:06:31,819 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 03:06:31,820 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 03:06:31,820 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-16 03:06:31,820 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 03:06:31,820 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 03:06:31,821 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 03:06:31,821 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 03:06:31,821 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a774a376fc4e4a689a90a1312354f429292327ca [2021-10-16 03:06:32,151 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 03:06:32,181 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 03:06:32,186 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 03:06:32,188 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 03:06:32,191 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 03:06:32,192 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/openssl-simplified/s3_clnt_2.cil-2.c [2021-10-16 03:06:32,284 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/data/0db36e2d6/21b80378339f48bcac86ea5fb53296c4/FLAG8713f538b [2021-10-16 03:06:32,844 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 03:06:32,845 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/sv-benchmarks/c/openssl-simplified/s3_clnt_2.cil-2.c [2021-10-16 03:06:32,876 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/data/0db36e2d6/21b80378339f48bcac86ea5fb53296c4/FLAG8713f538b [2021-10-16 03:06:33,177 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/data/0db36e2d6/21b80378339f48bcac86ea5fb53296c4 [2021-10-16 03:06:33,179 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 03:06:33,181 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 03:06:33,182 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 03:06:33,182 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 03:06:33,195 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 03:06:33,196 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:06:33" (1/1) ... [2021-10-16 03:06:33,197 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60100f9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:06:33, skipping insertion in model container [2021-10-16 03:06:33,197 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:06:33" (1/1) ... [2021-10-16 03:06:33,206 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 03:06:33,268 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 03:06:33,550 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_89705556-8a1c-480f-9832-1a787abe3ed0/sv-benchmarks/c/openssl-simplified/s3_clnt_2.cil-2.c[35827,35840] [2021-10-16 03:06:33,559 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 03:06:33,569 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 03:06:33,669 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_89705556-8a1c-480f-9832-1a787abe3ed0/sv-benchmarks/c/openssl-simplified/s3_clnt_2.cil-2.c[35827,35840] [2021-10-16 03:06:33,673 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 03:06:33,698 INFO L208 MainTranslator]: Completed translation [2021-10-16 03:06:33,699 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:06:33 WrapperNode [2021-10-16 03:06:33,700 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 03:06:33,703 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 03:06:33,704 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 03:06:33,704 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 03:06:33,713 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:06:33" (1/1) ... [2021-10-16 03:06:33,745 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:06:33" (1/1) ... [2021-10-16 03:06:33,809 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 03:06:33,810 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 03:06:33,810 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 03:06:33,811 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 03:06:33,821 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:06:33" (1/1) ... [2021-10-16 03:06:33,821 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:06:33" (1/1) ... [2021-10-16 03:06:33,826 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:06:33" (1/1) ... [2021-10-16 03:06:33,826 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:06:33" (1/1) ... [2021-10-16 03:06:33,838 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:06:33" (1/1) ... [2021-10-16 03:06:33,847 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:06:33" (1/1) ... [2021-10-16 03:06:33,851 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:06:33" (1/1) ... [2021-10-16 03:06:33,857 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 03:06:33,858 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 03:06:33,858 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 03:06:33,859 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 03:06:33,860 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:06:33" (1/1) ... [2021-10-16 03:06:33,869 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 03:06:33,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 03:06:33,918 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 03:06:33,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 03:06:33,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-16 03:06:33,977 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 03:06:33,979 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 03:06:33,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 03:06:34,166 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-16 03:06:34,913 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2021-10-16 03:06:34,913 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2021-10-16 03:06:35,339 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 03:06:35,339 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-16 03:06:35,342 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:06:35 BoogieIcfgContainer [2021-10-16 03:06:35,342 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 03:06:35,345 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 03:06:35,345 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 03:06:35,349 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 03:06:35,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 03:06:33" (1/3) ... [2021-10-16 03:06:35,352 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b5ea25a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:06:35, skipping insertion in model container [2021-10-16 03:06:35,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:06:33" (2/3) ... [2021-10-16 03:06:35,352 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b5ea25a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:06:35, skipping insertion in model container [2021-10-16 03:06:35,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:06:35" (3/3) ... [2021-10-16 03:06:35,354 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt_2.cil-2.c [2021-10-16 03:06:35,360 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 03:06:35,360 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-16 03:06:35,451 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 03:06:35,462 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 [2021-10-16 03:06:35,462 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-16 03:06:35,489 INFO L276 IsEmpty]: Start isEmpty. Operand has 85 states, 83 states have (on average 1.7590361445783131) internal successors, (146), 84 states have internal predecessors, (146), 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) [2021-10-16 03:06:35,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-16 03:06:35,504 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:06:35,505 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:06:35,506 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 03:06:35,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:06:35,524 INFO L82 PathProgramCache]: Analyzing trace with hash 602199862, now seen corresponding path program 1 times [2021-10-16 03:06:35,535 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:06:35,536 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881281009] [2021-10-16 03:06:35,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:06:35,537 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:06:35,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:06:35,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:06:35,821 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:06:35,822 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881281009] [2021-10-16 03:06:35,823 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881281009] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:06:35,823 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:06:35,824 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-16 03:06:35,826 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674780913] [2021-10-16 03:06:35,831 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 03:06:35,832 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:06:35,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 03:06:35,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:06:35,862 INFO L87 Difference]: Start difference. First operand has 85 states, 83 states have (on average 1.7590361445783131) internal successors, (146), 84 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 2 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) [2021-10-16 03:06:36,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:06:36,093 INFO L93 Difference]: Finished difference Result 171 states and 295 transitions. [2021-10-16 03:06:36,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 03:06:36,095 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 2 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 [2021-10-16 03:06:36,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:06:36,110 INFO L225 Difference]: With dead ends: 171 [2021-10-16 03:06:36,110 INFO L226 Difference]: Without dead ends: 84 [2021-10-16 03:06:36,114 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:06:36,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2021-10-16 03:06:36,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2021-10-16 03:06:36,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 83 states have (on average 1.4578313253012047) internal successors, (121), 83 states have internal predecessors, (121), 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) [2021-10-16 03:06:36,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 121 transitions. [2021-10-16 03:06:36,164 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 121 transitions. Word has length 19 [2021-10-16 03:06:36,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:06:36,164 INFO L470 AbstractCegarLoop]: Abstraction has 84 states and 121 transitions. [2021-10-16 03:06:36,164 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 2 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) [2021-10-16 03:06:36,165 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 121 transitions. [2021-10-16 03:06:36,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-16 03:06:36,166 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:06:36,166 INFO L512 BasicCegarLoop]: trace histogram [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] [2021-10-16 03:06:36,167 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-16 03:06:36,167 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 03:06:36,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:06:36,168 INFO L82 PathProgramCache]: Analyzing trace with hash -2014871544, now seen corresponding path program 1 times [2021-10-16 03:06:36,168 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:06:36,169 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532100160] [2021-10-16 03:06:36,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:06:36,169 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:06:36,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:06:36,322 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:06:36,323 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:06:36,323 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532100160] [2021-10-16 03:06:36,323 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532100160] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:06:36,324 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:06:36,324 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-16 03:06:36,324 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668943976] [2021-10-16 03:06:36,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 03:06:36,326 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:06:36,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 03:06:36,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:06:36,328 INFO L87 Difference]: Start difference. First operand 84 states and 121 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 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) [2021-10-16 03:06:36,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:06:36,492 INFO L93 Difference]: Finished difference Result 180 states and 263 transitions. [2021-10-16 03:06:36,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 03:06:36,493 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 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 [2021-10-16 03:06:36,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:06:36,499 INFO L225 Difference]: With dead ends: 180 [2021-10-16 03:06:36,499 INFO L226 Difference]: Without dead ends: 99 [2021-10-16 03:06:36,501 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:06:36,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2021-10-16 03:06:36,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 97. [2021-10-16 03:06:36,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 96 states have (on average 1.4270833333333333) internal successors, (137), 96 states have internal predecessors, (137), 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) [2021-10-16 03:06:36,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 137 transitions. [2021-10-16 03:06:36,530 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 137 transitions. Word has length 28 [2021-10-16 03:06:36,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:06:36,531 INFO L470 AbstractCegarLoop]: Abstraction has 97 states and 137 transitions. [2021-10-16 03:06:36,531 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 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) [2021-10-16 03:06:36,531 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 137 transitions. [2021-10-16 03:06:36,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-10-16 03:06:36,534 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:06:36,534 INFO L512 BasicCegarLoop]: trace histogram [3, 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] [2021-10-16 03:06:36,535 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-16 03:06:36,536 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 03:06:36,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:06:36,540 INFO L82 PathProgramCache]: Analyzing trace with hash -1649210470, now seen corresponding path program 1 times [2021-10-16 03:06:36,541 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:06:36,541 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043497766] [2021-10-16 03:06:36,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:06:36,543 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:06:36,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:06:36,685 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-16 03:06:36,685 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:06:36,691 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043497766] [2021-10-16 03:06:36,691 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043497766] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:06:36,692 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:06:36,692 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-16 03:06:36,692 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127701376] [2021-10-16 03:06:36,693 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 03:06:36,693 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:06:36,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 03:06:36,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:06:36,694 INFO L87 Difference]: Start difference. First operand 97 states and 137 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:06:36,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:06:36,873 INFO L93 Difference]: Finished difference Result 208 states and 299 transitions. [2021-10-16 03:06:36,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 03:06:36,882 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2021-10-16 03:06:36,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:06:36,884 INFO L225 Difference]: With dead ends: 208 [2021-10-16 03:06:36,884 INFO L226 Difference]: Without dead ends: 114 [2021-10-16 03:06:36,885 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:06:36,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2021-10-16 03:06:36,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 112. [2021-10-16 03:06:36,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 111 states have (on average 1.3963963963963963) internal successors, (155), 111 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:06:36,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 155 transitions. [2021-10-16 03:06:36,898 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 155 transitions. Word has length 39 [2021-10-16 03:06:36,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:06:36,899 INFO L470 AbstractCegarLoop]: Abstraction has 112 states and 155 transitions. [2021-10-16 03:06:36,899 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:06:36,899 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 155 transitions. [2021-10-16 03:06:36,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-10-16 03:06:36,905 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:06:36,906 INFO L512 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:06:36,906 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-16 03:06:36,906 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 03:06:36,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:06:36,907 INFO L82 PathProgramCache]: Analyzing trace with hash 503424708, now seen corresponding path program 1 times [2021-10-16 03:06:36,907 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:06:36,908 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898936542] [2021-10-16 03:06:36,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:06:36,908 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:06:36,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:06:37,062 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-16 03:06:37,063 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:06:37,063 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898936542] [2021-10-16 03:06:37,063 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898936542] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 03:06:37,064 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1982338909] [2021-10-16 03:06:37,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:06:37,064 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 03:06:37,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 03:06:37,067 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 03:06:37,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-16 03:06:37,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:06:37,202 INFO L263 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-16 03:06:37,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:06:37,655 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-10-16 03:06:37,655 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:06:37,915 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-10-16 03:06:37,916 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1982338909] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 03:06:37,916 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2021-10-16 03:06:37,916 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [4] total 9 [2021-10-16 03:06:37,916 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822576403] [2021-10-16 03:06:37,917 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-16 03:06:37,917 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:06:37,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-16 03:06:37,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-10-16 03:06:37,918 INFO L87 Difference]: Start difference. First operand 112 states and 155 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 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) [2021-10-16 03:06:38,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:06:38,282 INFO L93 Difference]: Finished difference Result 315 states and 470 transitions. [2021-10-16 03:06:38,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-16 03:06:38,283 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2021-10-16 03:06:38,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:06:38,287 INFO L225 Difference]: With dead ends: 315 [2021-10-16 03:06:38,287 INFO L226 Difference]: Without dead ends: 205 [2021-10-16 03:06:38,289 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 62.1ms TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-10-16 03:06:38,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2021-10-16 03:06:38,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 187. [2021-10-16 03:06:38,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 186 states have (on average 1.3763440860215055) internal successors, (256), 186 states have internal predecessors, (256), 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) [2021-10-16 03:06:38,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 256 transitions. [2021-10-16 03:06:38,321 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 256 transitions. Word has length 52 [2021-10-16 03:06:38,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:06:38,322 INFO L470 AbstractCegarLoop]: Abstraction has 187 states and 256 transitions. [2021-10-16 03:06:38,322 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 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) [2021-10-16 03:06:38,322 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 256 transitions. [2021-10-16 03:06:38,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-10-16 03:06:38,326 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:06:38,327 INFO L512 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2021-10-16 03:06:38,374 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-16 03:06:38,554 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 03:06:38,554 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 03:06:38,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:06:38,555 INFO L82 PathProgramCache]: Analyzing trace with hash 507843523, now seen corresponding path program 1 times [2021-10-16 03:06:38,555 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:06:38,556 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288447219] [2021-10-16 03:06:38,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:06:38,556 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:06:38,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:06:38,676 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-10-16 03:06:38,677 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:06:38,677 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288447219] [2021-10-16 03:06:38,679 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288447219] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:06:38,679 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:06:38,679 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-16 03:06:38,680 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258207441] [2021-10-16 03:06:38,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 03:06:38,683 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:06:38,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 03:06:38,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:06:38,686 INFO L87 Difference]: Start difference. First operand 187 states and 256 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) [2021-10-16 03:06:38,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:06:38,843 INFO L93 Difference]: Finished difference Result 392 states and 545 transitions. [2021-10-16 03:06:38,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 03:06:38,844 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 68 [2021-10-16 03:06:38,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:06:38,849 INFO L225 Difference]: With dead ends: 392 [2021-10-16 03:06:38,850 INFO L226 Difference]: Without dead ends: 208 [2021-10-16 03:06:38,854 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:06:38,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2021-10-16 03:06:38,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 206. [2021-10-16 03:06:38,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 205 states have (on average 1.3560975609756099) internal successors, (278), 205 states have internal predecessors, (278), 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) [2021-10-16 03:06:38,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 278 transitions. [2021-10-16 03:06:38,889 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 278 transitions. Word has length 68 [2021-10-16 03:06:38,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:06:38,890 INFO L470 AbstractCegarLoop]: Abstraction has 206 states and 278 transitions. [2021-10-16 03:06:38,891 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) [2021-10-16 03:06:38,891 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 278 transitions. [2021-10-16 03:06:38,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-10-16 03:06:38,897 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:06:38,898 INFO L512 BasicCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 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] [2021-10-16 03:06:38,898 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-16 03:06:38,898 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 03:06:38,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:06:38,899 INFO L82 PathProgramCache]: Analyzing trace with hash 1573808801, now seen corresponding path program 1 times [2021-10-16 03:06:38,899 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:06:38,900 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841416413] [2021-10-16 03:06:38,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:06:38,902 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:06:38,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:06:39,057 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2021-10-16 03:06:39,058 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:06:39,058 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841416413] [2021-10-16 03:06:39,058 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841416413] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 03:06:39,058 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [549480075] [2021-10-16 03:06:39,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:06:39,059 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 03:06:39,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 03:06:39,060 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 03:06:39,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-16 03:06:39,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:06:39,207 INFO L263 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-16 03:06:39,211 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:06:39,486 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2021-10-16 03:06:39,486 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:06:39,905 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2021-10-16 03:06:39,905 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [549480075] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 03:06:39,906 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1086871033] [2021-10-16 03:06:39,934 INFO L159 IcfgInterpreter]: Started Sifa with 37 locations of interest [2021-10-16 03:06:39,934 INFO L166 IcfgInterpreter]: Building call graph [2021-10-16 03:06:39,940 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-16 03:06:39,947 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-16 03:06:39,947 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-16 03:06:41,418 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:06:41,430 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 03:06:41,431 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:06:41,432 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-16 03:06:41,433 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 03:06:41,434 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:06:41,435 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-16 03:06:41,475 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 399 [2021-10-16 03:06:41,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 03:06:41,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 03:06:41,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 03:06:41,593 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-10-16 03:06:41,594 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:06:41,594 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-16 03:06:41,595 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:06:41,596 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-16 03:06:41,596 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-16 03:06:41,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 03:06:41,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 03:06:41,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 03:06:41,639 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-10-16 03:06:41,640 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:06:41,646 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-16 03:06:41,647 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:06:41,647 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-16 03:06:41,648 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-16 03:06:41,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 03:06:41,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 03:06:41,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 03:06:41,690 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-10-16 03:06:41,691 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:06:41,692 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-16 03:06:41,693 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:06:41,693 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-16 03:06:41,694 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-10-16 03:06:41,697 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 03:06:41,912 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:06:42,038 INFO L180 QuantifierPusher]: treesize reduction 18, result has 98.4 percent of original size [2021-10-16 03:06:42,079 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1119 [2021-10-16 03:06:42,083 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2021-10-16 03:06:42,084 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 1 variables, input treesize:1128, output treesize:1119 [2021-10-16 03:06:42,131 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-16 03:06:42,299 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-10-16 03:06:42,299 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: No corresponding IProgramVar for |v_#valid_18| at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:97) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:83) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.constructTermVarsProc(BasicPredicateFactory.java:92) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.newPredicate(BasicPredicateFactory.java:81) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.predicate(SymbolicTools.java:174) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.post(SymbolicTools.java:116) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretInternal(DagInterpreter.java:227) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:209) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:187) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:165) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:136) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:608) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:53) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:392) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-10-16 03:06:42,303 INFO L168 Benchmark]: Toolchain (without parser) took 9122.01 ms. Allocated memory was 77.6 MB in the beginning and 174.1 MB in the end (delta: 96.5 MB). Free memory was 56.0 MB in the beginning and 120.5 MB in the end (delta: -64.5 MB). Peak memory consumption was 116.4 MB. Max. memory is 16.1 GB. [2021-10-16 03:06:42,304 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 77.6 MB. Free memory was 53.5 MB in the beginning and 53.5 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 03:06:42,305 INFO L168 Benchmark]: CACSL2BoogieTranslator took 518.38 ms. Allocated memory is still 77.6 MB. Free memory was 55.8 MB in the beginning and 50.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-16 03:06:42,306 INFO L168 Benchmark]: Boogie Procedure Inliner took 105.92 ms. Allocated memory is still 77.6 MB. Free memory was 50.4 MB in the beginning and 47.5 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 03:06:42,306 INFO L168 Benchmark]: Boogie Preprocessor took 47.08 ms. Allocated memory is still 77.6 MB. Free memory was 47.5 MB in the beginning and 45.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 03:06:42,307 INFO L168 Benchmark]: RCFGBuilder took 1484.28 ms. Allocated memory was 77.6 MB in the beginning and 96.5 MB in the end (delta: 18.9 MB). Free memory was 45.5 MB in the beginning and 40.8 MB in the end (delta: 4.6 MB). Peak memory consumption was 28.9 MB. Max. memory is 16.1 GB. [2021-10-16 03:06:42,308 INFO L168 Benchmark]: TraceAbstraction took 6957.16 ms. Allocated memory was 96.5 MB in the beginning and 174.1 MB in the end (delta: 77.6 MB). Free memory was 40.3 MB in the beginning and 120.5 MB in the end (delta: -80.3 MB). Peak memory consumption was 80.7 MB. Max. memory is 16.1 GB. [2021-10-16 03:06:42,312 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 77.6 MB. Free memory was 53.5 MB in the beginning and 53.5 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 518.38 ms. Allocated memory is still 77.6 MB. Free memory was 55.8 MB in the beginning and 50.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 105.92 ms. Allocated memory is still 77.6 MB. Free memory was 50.4 MB in the beginning and 47.5 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 47.08 ms. Allocated memory is still 77.6 MB. Free memory was 47.5 MB in the beginning and 45.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1484.28 ms. Allocated memory was 77.6 MB in the beginning and 96.5 MB in the end (delta: 18.9 MB). Free memory was 45.5 MB in the beginning and 40.8 MB in the end (delta: 4.6 MB). Peak memory consumption was 28.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 6957.16 ms. Allocated memory was 96.5 MB in the beginning and 174.1 MB in the end (delta: 77.6 MB). Free memory was 40.3 MB in the beginning and 120.5 MB in the end (delta: -80.3 MB). Peak memory consumption was 80.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: No corresponding IProgramVar for |v_#valid_18| de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: No corresponding IProgramVar for |v_#valid_18|: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:97) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-10-16 03:06:42,365 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-5709675 [2021-10-16 03:06:45,116 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 03:06:45,119 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 03:06:45,165 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 03:06:45,166 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 03:06:45,171 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 03:06:45,174 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 03:06:45,179 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 03:06:45,183 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 03:06:45,195 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 03:06:45,196 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 03:06:45,198 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 03:06:45,198 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 03:06:45,200 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 03:06:45,201 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 03:06:45,203 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 03:06:45,204 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 03:06:45,205 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 03:06:45,207 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 03:06:45,210 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 03:06:45,212 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 03:06:45,213 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 03:06:45,215 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 03:06:45,216 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 03:06:45,220 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 03:06:45,221 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 03:06:45,221 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 03:06:45,222 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 03:06:45,223 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 03:06:45,224 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 03:06:45,225 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 03:06:45,226 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 03:06:45,227 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 03:06:45,228 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 03:06:45,229 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 03:06:45,229 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 03:06:45,230 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 03:06:45,230 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 03:06:45,236 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 03:06:45,241 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 03:06:45,242 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 03:06:45,243 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-16 03:06:45,285 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 03:06:45,285 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 03:06:45,287 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 03:06:45,287 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 03:06:45,287 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 03:06:45,288 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 03:06:45,288 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 03:06:45,288 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 03:06:45,288 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 03:06:45,290 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 03:06:45,291 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 03:06:45,292 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 03:06:45,292 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 03:06:45,292 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 03:06:45,292 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 03:06:45,293 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 03:06:45,293 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 03:06:45,293 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-16 03:06:45,293 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-16 03:06:45,294 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 03:06:45,294 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 03:06:45,294 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 03:06:45,295 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 03:06:45,295 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 03:06:45,295 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-16 03:06:45,295 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 03:06:45,296 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 03:06:45,296 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 03:06:45,296 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 03:06:45,296 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 03:06:45,297 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-16 03:06:45,297 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-16 03:06:45,297 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 03:06:45,298 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 03:06:45,298 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 03:06:45,299 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a774a376fc4e4a689a90a1312354f429292327ca [2021-10-16 03:06:45,678 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 03:06:45,706 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 03:06:45,708 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 03:06:45,710 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 03:06:45,711 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 03:06:45,712 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/openssl-simplified/s3_clnt_2.cil-2.c [2021-10-16 03:06:45,783 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/data/facb282cc/36e9136551214b0688065897a17f517c/FLAG8c8c77790 [2021-10-16 03:06:46,309 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 03:06:46,310 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/sv-benchmarks/c/openssl-simplified/s3_clnt_2.cil-2.c [2021-10-16 03:06:46,321 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/data/facb282cc/36e9136551214b0688065897a17f517c/FLAG8c8c77790 [2021-10-16 03:06:46,628 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/data/facb282cc/36e9136551214b0688065897a17f517c [2021-10-16 03:06:46,632 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 03:06:46,634 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 03:06:46,637 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 03:06:46,637 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 03:06:46,640 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 03:06:46,641 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:06:46" (1/1) ... [2021-10-16 03:06:46,643 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77d74cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:06:46, skipping insertion in model container [2021-10-16 03:06:46,644 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:06:46" (1/1) ... [2021-10-16 03:06:46,652 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 03:06:46,711 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 03:06:46,942 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_89705556-8a1c-480f-9832-1a787abe3ed0/sv-benchmarks/c/openssl-simplified/s3_clnt_2.cil-2.c[35827,35840] [2021-10-16 03:06:46,948 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 03:06:46,980 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 03:06:47,062 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_89705556-8a1c-480f-9832-1a787abe3ed0/sv-benchmarks/c/openssl-simplified/s3_clnt_2.cil-2.c[35827,35840] [2021-10-16 03:06:47,065 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 03:06:47,079 INFO L208 MainTranslator]: Completed translation [2021-10-16 03:06:47,079 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:06:47 WrapperNode [2021-10-16 03:06:47,080 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 03:06:47,081 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 03:06:47,081 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 03:06:47,081 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 03:06:47,089 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:06:47" (1/1) ... [2021-10-16 03:06:47,102 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:06:47" (1/1) ... [2021-10-16 03:06:47,140 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 03:06:47,141 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 03:06:47,141 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 03:06:47,141 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 03:06:47,150 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:06:47" (1/1) ... [2021-10-16 03:06:47,150 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:06:47" (1/1) ... [2021-10-16 03:06:47,157 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:06:47" (1/1) ... [2021-10-16 03:06:47,171 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:06:47" (1/1) ... [2021-10-16 03:06:47,181 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:06:47" (1/1) ... [2021-10-16 03:06:47,203 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:06:47" (1/1) ... [2021-10-16 03:06:47,205 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:06:47" (1/1) ... [2021-10-16 03:06:47,222 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 03:06:47,224 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 03:06:47,224 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 03:06:47,224 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 03:06:47,225 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:06:47" (1/1) ... [2021-10-16 03:06:47,232 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 03:06:47,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 03:06:47,257 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 03:06:47,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 03:06:47,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-16 03:06:47,306 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 03:06:47,306 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 03:06:47,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 03:06:47,415 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-16 03:06:47,834 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2021-10-16 03:06:47,834 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2021-10-16 03:06:47,843 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 03:06:47,843 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-16 03:06:47,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:06:47 BoogieIcfgContainer [2021-10-16 03:06:47,845 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 03:06:47,847 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 03:06:47,848 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 03:06:47,850 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 03:06:47,853 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 03:06:46" (1/3) ... [2021-10-16 03:06:47,854 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3969db1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:06:47, skipping insertion in model container [2021-10-16 03:06:47,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:06:47" (2/3) ... [2021-10-16 03:06:47,855 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3969db1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:06:47, skipping insertion in model container [2021-10-16 03:06:47,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:06:47" (3/3) ... [2021-10-16 03:06:47,857 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt_2.cil-2.c [2021-10-16 03:06:47,865 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 03:06:47,866 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-16 03:06:47,933 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 03:06:47,941 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 [2021-10-16 03:06:47,941 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-16 03:06:47,965 INFO L276 IsEmpty]: Start isEmpty. Operand has 128 states, 126 states have (on average 1.7142857142857142) internal successors, (216), 127 states have internal predecessors, (216), 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) [2021-10-16 03:06:47,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-16 03:06:47,983 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:06:47,983 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] [2021-10-16 03:06:47,984 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 03:06:47,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:06:47,990 INFO L82 PathProgramCache]: Analyzing trace with hash -1457695038, now seen corresponding path program 1 times [2021-10-16 03:06:48,018 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 03:06:48,018 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [112718867] [2021-10-16 03:06:48,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:06:48,019 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 03:06:48,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 03:06:48,025 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 03:06:48,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-16 03:06:48,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:06:48,146 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-16 03:06:48,155 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:06:48,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:06:48,380 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:06:48,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:06:48,502 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 03:06:48,502 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [112718867] [2021-10-16 03:06:48,502 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [112718867] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 03:06:48,503 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:06:48,503 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-16 03:06:48,505 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696571613] [2021-10-16 03:06:48,509 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 03:06:48,510 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 03:06:48,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 03:06:48,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:06:48,528 INFO L87 Difference]: Start difference. First operand has 128 states, 126 states have (on average 1.7142857142857142) internal successors, (216), 127 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 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) [2021-10-16 03:06:48,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:06:48,777 INFO L93 Difference]: Finished difference Result 252 states and 427 transitions. [2021-10-16 03:06:48,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 03:06:48,780 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 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 [2021-10-16 03:06:48,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:06:48,791 INFO L225 Difference]: With dead ends: 252 [2021-10-16 03:06:48,795 INFO L226 Difference]: Without dead ends: 115 [2021-10-16 03:06:48,803 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:06:48,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2021-10-16 03:06:48,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2021-10-16 03:06:48,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 114 states have (on average 1.5087719298245614) internal successors, (172), 114 states have internal predecessors, (172), 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) [2021-10-16 03:06:48,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 172 transitions. [2021-10-16 03:06:48,871 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 172 transitions. Word has length 24 [2021-10-16 03:06:48,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:06:48,873 INFO L470 AbstractCegarLoop]: Abstraction has 115 states and 172 transitions. [2021-10-16 03:06:48,873 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 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) [2021-10-16 03:06:48,873 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 172 transitions. [2021-10-16 03:06:48,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-10-16 03:06:48,877 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:06:48,877 INFO L512 BasicCegarLoop]: trace histogram [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] [2021-10-16 03:06:48,894 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-16 03:06:49,089 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 03:06:49,089 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 03:06:49,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:06:49,090 INFO L82 PathProgramCache]: Analyzing trace with hash 561717339, now seen corresponding path program 1 times [2021-10-16 03:06:49,094 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 03:06:49,095 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1186272213] [2021-10-16 03:06:49,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:06:49,095 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 03:06:49,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 03:06:49,097 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 03:06:49,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-16 03:06:49,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:06:49,201 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 03:06:49,216 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:06:49,397 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:06:49,397 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:06:49,553 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:06:49,554 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 03:06:49,555 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1186272213] [2021-10-16 03:06:49,555 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1186272213] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 03:06:49,555 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:06:49,555 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-16 03:06:49,556 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42909276] [2021-10-16 03:06:49,557 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 03:06:49,557 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 03:06:49,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 03:06:49,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:06:49,560 INFO L87 Difference]: Start difference. First operand 115 states and 172 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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) [2021-10-16 03:06:49,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:06:49,729 INFO L93 Difference]: Finished difference Result 239 states and 362 transitions. [2021-10-16 03:06:49,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 03:06:49,730 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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 37 [2021-10-16 03:06:49,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:06:49,736 INFO L225 Difference]: With dead ends: 239 [2021-10-16 03:06:49,737 INFO L226 Difference]: Without dead ends: 134 [2021-10-16 03:06:49,740 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:06:49,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2021-10-16 03:06:49,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 130. [2021-10-16 03:06:49,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 129 states have (on average 1.4883720930232558) internal successors, (192), 129 states have internal predecessors, (192), 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) [2021-10-16 03:06:49,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 192 transitions. [2021-10-16 03:06:49,774 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 192 transitions. Word has length 37 [2021-10-16 03:06:49,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:06:49,774 INFO L470 AbstractCegarLoop]: Abstraction has 130 states and 192 transitions. [2021-10-16 03:06:49,775 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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) [2021-10-16 03:06:49,775 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 192 transitions. [2021-10-16 03:06:49,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-10-16 03:06:49,778 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:06:49,778 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:06:49,791 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-16 03:06:49,986 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 03:06:49,986 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 03:06:49,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:06:49,987 INFO L82 PathProgramCache]: Analyzing trace with hash 684962052, now seen corresponding path program 1 times [2021-10-16 03:06:49,988 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 03:06:49,990 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [35499340] [2021-10-16 03:06:50,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:06:50,001 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 03:06:50,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 03:06:50,002 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 03:06:50,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-16 03:06:50,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:06:50,116 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 03:06:50,120 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:06:50,261 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-16 03:06:50,261 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:06:50,369 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-16 03:06:50,370 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 03:06:50,370 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [35499340] [2021-10-16 03:06:50,370 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [35499340] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 03:06:50,371 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:06:50,371 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-16 03:06:50,371 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829182979] [2021-10-16 03:06:50,372 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 03:06:50,372 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 03:06:50,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 03:06:50,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:06:50,374 INFO L87 Difference]: Start difference. First operand 130 states and 192 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) [2021-10-16 03:06:50,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:06:50,507 INFO L93 Difference]: Finished difference Result 271 states and 406 transitions. [2021-10-16 03:06:50,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 03:06:50,508 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 51 [2021-10-16 03:06:50,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:06:50,510 INFO L225 Difference]: With dead ends: 271 [2021-10-16 03:06:50,510 INFO L226 Difference]: Without dead ends: 151 [2021-10-16 03:06:50,511 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:06:50,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2021-10-16 03:06:50,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 147. [2021-10-16 03:06:50,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 146 states have (on average 1.4657534246575343) internal successors, (214), 146 states have internal predecessors, (214), 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) [2021-10-16 03:06:50,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 214 transitions. [2021-10-16 03:06:50,521 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 214 transitions. Word has length 51 [2021-10-16 03:06:50,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:06:50,521 INFO L470 AbstractCegarLoop]: Abstraction has 147 states and 214 transitions. [2021-10-16 03:06:50,522 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) [2021-10-16 03:06:50,522 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 214 transitions. [2021-10-16 03:06:50,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-10-16 03:06:50,524 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:06:50,524 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 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, 1] [2021-10-16 03:06:50,540 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-16 03:06:50,736 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 03:06:50,736 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 03:06:50,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:06:50,737 INFO L82 PathProgramCache]: Analyzing trace with hash -184561774, now seen corresponding path program 1 times [2021-10-16 03:06:50,738 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 03:06:50,738 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [293777837] [2021-10-16 03:06:50,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:06:50,738 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 03:06:50,738 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 03:06:50,739 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 03:06:50,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-16 03:06:50,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:06:50,890 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 03:06:50,894 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:06:51,088 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-10-16 03:06:51,088 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:06:51,224 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-10-16 03:06:51,224 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 03:06:51,225 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [293777837] [2021-10-16 03:06:51,226 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [293777837] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 03:06:51,226 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:06:51,226 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-16 03:06:51,226 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161846382] [2021-10-16 03:06:51,228 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 03:06:51,228 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 03:06:51,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 03:06:51,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 03:06:51,229 INFO L87 Difference]: Start difference. First operand 147 states and 214 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 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) [2021-10-16 03:06:51,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:06:51,456 INFO L93 Difference]: Finished difference Result 355 states and 540 transitions. [2021-10-16 03:06:51,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 03:06:51,457 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2021-10-16 03:06:51,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:06:51,460 INFO L225 Difference]: With dead ends: 355 [2021-10-16 03:06:51,460 INFO L226 Difference]: Without dead ends: 218 [2021-10-16 03:06:51,462 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.7ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 03:06:51,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2021-10-16 03:06:51,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 210. [2021-10-16 03:06:51,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 209 states have (on average 1.4354066985645932) internal successors, (300), 209 states have internal predecessors, (300), 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) [2021-10-16 03:06:51,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 300 transitions. [2021-10-16 03:06:51,483 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 300 transitions. Word has length 68 [2021-10-16 03:06:51,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:06:51,485 INFO L470 AbstractCegarLoop]: Abstraction has 210 states and 300 transitions. [2021-10-16 03:06:51,486 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 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) [2021-10-16 03:06:51,487 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 300 transitions. [2021-10-16 03:06:51,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-10-16 03:06:51,493 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:06:51,493 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1] [2021-10-16 03:06:51,510 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-16 03:06:51,710 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 03:06:51,710 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 03:06:51,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:06:51,711 INFO L82 PathProgramCache]: Analyzing trace with hash -1565147003, now seen corresponding path program 1 times [2021-10-16 03:06:51,711 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 03:06:51,711 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [107238716] [2021-10-16 03:06:51,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:06:51,711 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 03:06:51,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 03:06:51,712 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 03:06:51,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-16 03:06:51,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:06:51,888 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 03:06:51,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:06:52,080 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-10-16 03:06:52,080 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:06:52,240 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-10-16 03:06:52,241 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 03:06:52,241 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [107238716] [2021-10-16 03:06:52,241 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [107238716] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 03:06:52,241 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:06:52,241 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-16 03:06:52,242 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851738897] [2021-10-16 03:06:52,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 03:06:52,242 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 03:06:52,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 03:06:52,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:06:52,243 INFO L87 Difference]: Start difference. First operand 210 states and 300 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) [2021-10-16 03:06:52,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:06:52,366 INFO L93 Difference]: Finished difference Result 434 states and 627 transitions. [2021-10-16 03:06:52,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 03:06:52,367 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 69 [2021-10-16 03:06:52,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:06:52,369 INFO L225 Difference]: With dead ends: 434 [2021-10-16 03:06:52,369 INFO L226 Difference]: Without dead ends: 234 [2021-10-16 03:06:52,369 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:06:52,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2021-10-16 03:06:52,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 229. [2021-10-16 03:06:52,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 228 states have (on average 1.4210526315789473) internal successors, (324), 228 states have internal predecessors, (324), 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) [2021-10-16 03:06:52,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 324 transitions. [2021-10-16 03:06:52,378 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 324 transitions. Word has length 69 [2021-10-16 03:06:52,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:06:52,379 INFO L470 AbstractCegarLoop]: Abstraction has 229 states and 324 transitions. [2021-10-16 03:06:52,379 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) [2021-10-16 03:06:52,380 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 324 transitions. [2021-10-16 03:06:52,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-10-16 03:06:52,381 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:06:52,381 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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, 1, 1, 1, 1] [2021-10-16 03:06:52,401 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-16 03:06:52,601 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 03:06:52,602 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 03:06:52,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:06:52,603 INFO L82 PathProgramCache]: Analyzing trace with hash -368257495, now seen corresponding path program 1 times [2021-10-16 03:06:52,604 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 03:06:52,605 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [49047901] [2021-10-16 03:06:52,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:06:52,606 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 03:06:52,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 03:06:52,607 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 03:06:52,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-16 03:06:52,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:06:52,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 03:06:52,794 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:06:53,033 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2021-10-16 03:06:53,033 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:06:53,205 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2021-10-16 03:06:53,206 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 03:06:53,206 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [49047901] [2021-10-16 03:06:53,206 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [49047901] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 03:06:53,206 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:06:53,207 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-16 03:06:53,207 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467724594] [2021-10-16 03:06:53,207 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 03:06:53,208 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 03:06:53,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 03:06:53,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:06:53,209 INFO L87 Difference]: Start difference. First operand 229 states and 324 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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) [2021-10-16 03:06:53,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:06:53,353 INFO L93 Difference]: Finished difference Result 472 states and 676 transitions. [2021-10-16 03:06:53,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 03:06:53,354 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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 86 [2021-10-16 03:06:53,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:06:53,356 INFO L225 Difference]: With dead ends: 472 [2021-10-16 03:06:53,356 INFO L226 Difference]: Without dead ends: 253 [2021-10-16 03:06:53,357 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:06:53,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2021-10-16 03:06:53,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 250. [2021-10-16 03:06:53,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 249 states have (on average 1.4056224899598393) internal successors, (350), 249 states have internal predecessors, (350), 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) [2021-10-16 03:06:53,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 350 transitions. [2021-10-16 03:06:53,368 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 350 transitions. Word has length 86 [2021-10-16 03:06:53,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:06:53,369 INFO L470 AbstractCegarLoop]: Abstraction has 250 states and 350 transitions. [2021-10-16 03:06:53,369 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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) [2021-10-16 03:06:53,369 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 350 transitions. [2021-10-16 03:06:53,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-10-16 03:06:53,371 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:06:53,371 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1] [2021-10-16 03:06:53,390 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-16 03:06:53,585 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 03:06:53,587 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 03:06:53,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:06:53,587 INFO L82 PathProgramCache]: Analyzing trace with hash 1725839848, now seen corresponding path program 1 times [2021-10-16 03:06:53,588 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 03:06:53,588 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1697191808] [2021-10-16 03:06:53,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:06:53,589 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 03:06:53,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 03:06:53,590 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 03:06:53,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-16 03:06:53,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:06:53,807 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 03:06:53,810 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:06:54,063 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-16 03:06:54,064 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:06:54,319 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-16 03:06:54,319 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 03:06:54,319 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1697191808] [2021-10-16 03:06:54,319 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1697191808] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 03:06:54,319 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:06:54,319 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-16 03:06:54,319 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906462944] [2021-10-16 03:06:54,320 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 03:06:54,320 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 03:06:54,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 03:06:54,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 03:06:54,321 INFO L87 Difference]: Start difference. First operand 250 states and 350 transitions. Second operand has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 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) [2021-10-16 03:06:54,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:06:54,368 INFO L93 Difference]: Finished difference Result 752 states and 1051 transitions. [2021-10-16 03:06:54,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 03:06:54,369 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 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 105 [2021-10-16 03:06:54,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:06:54,373 INFO L225 Difference]: With dead ends: 752 [2021-10-16 03:06:54,373 INFO L226 Difference]: Without dead ends: 512 [2021-10-16 03:06:54,374 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.3ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 03:06:54,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2021-10-16 03:06:54,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 512. [2021-10-16 03:06:54,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 512 states, 511 states have (on average 1.385518590998043) internal successors, (708), 511 states have internal predecessors, (708), 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) [2021-10-16 03:06:54,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 512 states and 708 transitions. [2021-10-16 03:06:54,400 INFO L78 Accepts]: Start accepts. Automaton has 512 states and 708 transitions. Word has length 105 [2021-10-16 03:06:54,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:06:54,400 INFO L470 AbstractCegarLoop]: Abstraction has 512 states and 708 transitions. [2021-10-16 03:06:54,400 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 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) [2021-10-16 03:06:54,401 INFO L276 IsEmpty]: Start isEmpty. Operand 512 states and 708 transitions. [2021-10-16 03:06:54,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-10-16 03:06:54,403 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:06:54,403 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1] [2021-10-16 03:06:54,411 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-10-16 03:06:54,603 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 03:06:54,607 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 03:06:54,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:06:54,607 INFO L82 PathProgramCache]: Analyzing trace with hash -2023868700, now seen corresponding path program 1 times [2021-10-16 03:06:54,607 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 03:06:54,608 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1146036139] [2021-10-16 03:06:54,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:06:54,608 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 03:06:54,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 03:06:54,609 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 03:06:54,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-16 03:06:54,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:06:54,864 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 03:06:54,867 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:06:55,054 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2021-10-16 03:06:55,054 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:06:55,261 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2021-10-16 03:06:55,261 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 03:06:55,262 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1146036139] [2021-10-16 03:06:55,262 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1146036139] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 03:06:55,263 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:06:55,263 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-16 03:06:55,266 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940585600] [2021-10-16 03:06:55,267 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 03:06:55,267 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 03:06:55,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 03:06:55,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:06:55,268 INFO L87 Difference]: Start difference. First operand 512 states and 708 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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) [2021-10-16 03:06:55,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:06:55,296 INFO L93 Difference]: Finished difference Result 1035 states and 1430 transitions. [2021-10-16 03:06:55,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 03:06:55,297 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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 105 [2021-10-16 03:06:55,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:06:55,302 INFO L225 Difference]: With dead ends: 1035 [2021-10-16 03:06:55,302 INFO L226 Difference]: Without dead ends: 533 [2021-10-16 03:06:55,303 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:06:55,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2021-10-16 03:06:55,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 533. [2021-10-16 03:06:55,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 533 states, 532 states have (on average 1.381578947368421) internal successors, (735), 532 states have internal predecessors, (735), 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) [2021-10-16 03:06:55,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 735 transitions. [2021-10-16 03:06:55,324 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 735 transitions. Word has length 105 [2021-10-16 03:06:55,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:06:55,326 INFO L470 AbstractCegarLoop]: Abstraction has 533 states and 735 transitions. [2021-10-16 03:06:55,326 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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) [2021-10-16 03:06:55,326 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 735 transitions. [2021-10-16 03:06:55,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-10-16 03:06:55,328 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:06:55,329 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:06:55,347 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-16 03:06:55,542 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 03:06:55,543 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 03:06:55,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:06:55,543 INFO L82 PathProgramCache]: Analyzing trace with hash -944759694, now seen corresponding path program 1 times [2021-10-16 03:06:55,543 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 03:06:55,543 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1686827308] [2021-10-16 03:06:55,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:06:55,544 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 03:06:55,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 03:06:55,545 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 03:06:55,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-16 03:06:55,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:06:55,864 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 03:06:55,867 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:06:56,089 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2021-10-16 03:06:56,090 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:06:56,378 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2021-10-16 03:06:56,379 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 03:06:56,379 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1686827308] [2021-10-16 03:06:56,379 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1686827308] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 03:06:56,379 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:06:56,380 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-16 03:06:56,380 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676495208] [2021-10-16 03:06:56,381 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 03:06:56,381 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 03:06:56,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 03:06:56,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:06:56,382 INFO L87 Difference]: Start difference. First operand 533 states and 735 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:06:56,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:06:56,415 INFO L93 Difference]: Finished difference Result 1083 states and 1491 transitions. [2021-10-16 03:06:56,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 03:06:56,415 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2021-10-16 03:06:56,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:06:56,420 INFO L225 Difference]: With dead ends: 1083 [2021-10-16 03:06:56,420 INFO L226 Difference]: Without dead ends: 560 [2021-10-16 03:06:56,421 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:06:56,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2021-10-16 03:06:56,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 560. [2021-10-16 03:06:56,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 559 states have (on average 1.3756708407871199) internal successors, (769), 559 states have internal predecessors, (769), 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) [2021-10-16 03:06:56,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 769 transitions. [2021-10-16 03:06:56,444 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 769 transitions. Word has length 106 [2021-10-16 03:06:56,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:06:56,445 INFO L470 AbstractCegarLoop]: Abstraction has 560 states and 769 transitions. [2021-10-16 03:06:56,445 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:06:56,445 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 769 transitions. [2021-10-16 03:06:56,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-10-16 03:06:56,447 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:06:56,448 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:06:56,479 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-16 03:06:56,662 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 03:06:56,663 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 03:06:56,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:06:56,663 INFO L82 PathProgramCache]: Analyzing trace with hash 625791090, now seen corresponding path program 1 times [2021-10-16 03:06:56,664 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 03:06:56,664 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [107970648] [2021-10-16 03:06:56,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:06:56,664 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 03:06:56,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 03:06:56,665 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 03:06:56,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-16 03:06:57,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:06:57,035 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 03:06:57,037 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:06:57,338 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2021-10-16 03:06:57,338 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:06:57,597 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2021-10-16 03:06:57,597 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 03:06:57,598 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [107970648] [2021-10-16 03:06:57,598 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [107970648] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 03:06:57,598 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:06:57,598 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-16 03:06:57,598 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711726832] [2021-10-16 03:06:57,599 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 03:06:57,599 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 03:06:57,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 03:06:57,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 03:06:57,600 INFO L87 Difference]: Start difference. First operand 560 states and 769 transitions. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 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) [2021-10-16 03:06:57,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:06:57,672 INFO L93 Difference]: Finished difference Result 1539 states and 2132 transitions. [2021-10-16 03:06:57,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 03:06:57,675 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 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 107 [2021-10-16 03:06:57,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:06:57,681 INFO L225 Difference]: With dead ends: 1539 [2021-10-16 03:06:57,682 INFO L226 Difference]: Without dead ends: 1016 [2021-10-16 03:06:57,683 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.0ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 03:06:57,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1016 states. [2021-10-16 03:06:57,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1016 to 1016. [2021-10-16 03:06:57,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1016 states, 1015 states have (on average 1.3842364532019704) internal successors, (1405), 1015 states have internal predecessors, (1405), 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) [2021-10-16 03:06:57,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1016 states to 1016 states and 1405 transitions. [2021-10-16 03:06:57,724 INFO L78 Accepts]: Start accepts. Automaton has 1016 states and 1405 transitions. Word has length 107 [2021-10-16 03:06:57,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:06:57,725 INFO L470 AbstractCegarLoop]: Abstraction has 1016 states and 1405 transitions. [2021-10-16 03:06:57,725 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 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) [2021-10-16 03:06:57,725 INFO L276 IsEmpty]: Start isEmpty. Operand 1016 states and 1405 transitions. [2021-10-16 03:06:57,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2021-10-16 03:06:57,729 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:06:57,729 INFO L512 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 7, 7, 5, 5, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:06:57,746 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-16 03:06:57,942 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 03:06:57,942 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 03:06:57,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:06:57,943 INFO L82 PathProgramCache]: Analyzing trace with hash -1290635395, now seen corresponding path program 1 times [2021-10-16 03:06:57,943 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 03:06:57,943 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [980929805] [2021-10-16 03:06:57,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:06:57,944 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 03:06:57,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 03:06:57,944 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 03:06:57,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-10-16 03:06:58,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:06:58,346 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 03:06:58,349 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:06:58,733 INFO L134 CoverageAnalysis]: Checked inductivity of 471 backedges. 311 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2021-10-16 03:06:58,733 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:06:59,131 INFO L134 CoverageAnalysis]: Checked inductivity of 471 backedges. 311 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2021-10-16 03:06:59,132 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 03:06:59,132 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [980929805] [2021-10-16 03:06:59,132 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [980929805] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 03:06:59,132 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:06:59,132 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-16 03:06:59,132 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363515431] [2021-10-16 03:06:59,133 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 03:06:59,133 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 03:06:59,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 03:06:59,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 03:06:59,134 INFO L87 Difference]: Start difference. First operand 1016 states and 1405 transitions. Second operand has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 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) [2021-10-16 03:06:59,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:06:59,338 INFO L93 Difference]: Finished difference Result 2116 states and 2963 transitions. [2021-10-16 03:06:59,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 03:06:59,339 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 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 176 [2021-10-16 03:06:59,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:06:59,346 INFO L225 Difference]: With dead ends: 2116 [2021-10-16 03:06:59,346 INFO L226 Difference]: Without dead ends: 1137 [2021-10-16 03:06:59,347 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 350 GetRequests, 348 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.7ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 03:06:59,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1137 states. [2021-10-16 03:06:59,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1137 to 1108. [2021-10-16 03:06:59,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1108 states, 1107 states have (on average 1.3667570009033423) internal successors, (1513), 1107 states have internal predecessors, (1513), 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) [2021-10-16 03:06:59,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1108 states to 1108 states and 1513 transitions. [2021-10-16 03:06:59,388 INFO L78 Accepts]: Start accepts. Automaton has 1108 states and 1513 transitions. Word has length 176 [2021-10-16 03:06:59,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:06:59,389 INFO L470 AbstractCegarLoop]: Abstraction has 1108 states and 1513 transitions. [2021-10-16 03:06:59,389 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 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) [2021-10-16 03:06:59,389 INFO L276 IsEmpty]: Start isEmpty. Operand 1108 states and 1513 transitions. [2021-10-16 03:06:59,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2021-10-16 03:06:59,393 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:06:59,394 INFO L512 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 9, 8, 6, 6, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:06:59,410 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-10-16 03:06:59,606 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 03:06:59,606 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 03:06:59,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:06:59,607 INFO L82 PathProgramCache]: Analyzing trace with hash 1688862134, now seen corresponding path program 1 times [2021-10-16 03:06:59,608 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 03:06:59,608 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1910302321] [2021-10-16 03:06:59,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:06:59,608 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 03:06:59,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 03:06:59,609 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 03:06:59,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-10-16 03:07:00,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:07:00,164 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 03:07:00,167 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:07:00,594 INFO L134 CoverageAnalysis]: Checked inductivity of 606 backedges. 391 proven. 0 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2021-10-16 03:07:00,595 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:07:01,027 INFO L134 CoverageAnalysis]: Checked inductivity of 606 backedges. 391 proven. 0 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2021-10-16 03:07:01,027 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 03:07:01,028 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1910302321] [2021-10-16 03:07:01,028 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1910302321] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 03:07:01,028 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:07:01,028 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-16 03:07:01,028 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659871397] [2021-10-16 03:07:01,029 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 03:07:01,029 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 03:07:01,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 03:07:01,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 03:07:01,030 INFO L87 Difference]: Start difference. First operand 1108 states and 1513 transitions. Second operand has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 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) [2021-10-16 03:07:01,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:07:01,262 INFO L93 Difference]: Finished difference Result 2282 states and 3146 transitions. [2021-10-16 03:07:01,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 03:07:01,263 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 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 198 [2021-10-16 03:07:01,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:07:01,270 INFO L225 Difference]: With dead ends: 2282 [2021-10-16 03:07:01,271 INFO L226 Difference]: Without dead ends: 1211 [2021-10-16 03:07:01,272 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 394 GetRequests, 392 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.7ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 03:07:01,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1211 states. [2021-10-16 03:07:01,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1211 to 1183. [2021-10-16 03:07:01,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1183 states, 1182 states have (on average 1.3527918781725887) internal successors, (1599), 1182 states have internal predecessors, (1599), 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) [2021-10-16 03:07:01,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1183 states to 1183 states and 1599 transitions. [2021-10-16 03:07:01,318 INFO L78 Accepts]: Start accepts. Automaton has 1183 states and 1599 transitions. Word has length 198 [2021-10-16 03:07:01,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:07:01,318 INFO L470 AbstractCegarLoop]: Abstraction has 1183 states and 1599 transitions. [2021-10-16 03:07:01,318 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 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) [2021-10-16 03:07:01,319 INFO L276 IsEmpty]: Start isEmpty. Operand 1183 states and 1599 transitions. [2021-10-16 03:07:01,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2021-10-16 03:07:01,323 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:07:01,324 INFO L512 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 11, 11, 11, 11, 11, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:07:01,341 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-10-16 03:07:01,537 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 03:07:01,538 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 03:07:01,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:07:01,538 INFO L82 PathProgramCache]: Analyzing trace with hash 455987487, now seen corresponding path program 1 times [2021-10-16 03:07:01,539 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 03:07:01,539 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1795549623] [2021-10-16 03:07:01,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:07:01,539 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 03:07:01,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 03:07:01,540 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 03:07:01,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-10-16 03:07:02,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:07:02,115 INFO L263 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 03:07:02,117 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:07:02,534 INFO L134 CoverageAnalysis]: Checked inductivity of 807 backedges. 479 proven. 0 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2021-10-16 03:07:02,535 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:07:02,967 INFO L134 CoverageAnalysis]: Checked inductivity of 807 backedges. 479 proven. 0 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2021-10-16 03:07:02,968 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 03:07:02,968 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1795549623] [2021-10-16 03:07:02,968 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1795549623] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 03:07:02,968 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:07:02,969 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-16 03:07:02,969 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325276715] [2021-10-16 03:07:02,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 03:07:02,970 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 03:07:02,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 03:07:02,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 03:07:02,971 INFO L87 Difference]: Start difference. First operand 1183 states and 1599 transitions. Second operand has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 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) [2021-10-16 03:07:03,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:07:03,165 INFO L93 Difference]: Finished difference Result 2449 states and 3350 transitions. [2021-10-16 03:07:03,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 03:07:03,165 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 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 234 [2021-10-16 03:07:03,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:07:03,173 INFO L225 Difference]: With dead ends: 2449 [2021-10-16 03:07:03,173 INFO L226 Difference]: Without dead ends: 1303 [2021-10-16 03:07:03,175 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 466 GetRequests, 464 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.0ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 03:07:03,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1303 states. [2021-10-16 03:07:03,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1303 to 1295. [2021-10-16 03:07:03,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1295 states, 1294 states have (on average 1.3346213292117466) internal successors, (1727), 1294 states have internal predecessors, (1727), 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) [2021-10-16 03:07:03,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1295 states to 1295 states and 1727 transitions. [2021-10-16 03:07:03,224 INFO L78 Accepts]: Start accepts. Automaton has 1295 states and 1727 transitions. Word has length 234 [2021-10-16 03:07:03,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:07:03,225 INFO L470 AbstractCegarLoop]: Abstraction has 1295 states and 1727 transitions. [2021-10-16 03:07:03,225 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 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) [2021-10-16 03:07:03,225 INFO L276 IsEmpty]: Start isEmpty. Operand 1295 states and 1727 transitions. [2021-10-16 03:07:03,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2021-10-16 03:07:03,230 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:07:03,231 INFO L512 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 11, 11, 11, 11, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:07:03,251 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-10-16 03:07:03,444 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 03:07:03,446 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 03:07:03,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:07:03,447 INFO L82 PathProgramCache]: Analyzing trace with hash -501091517, now seen corresponding path program 1 times [2021-10-16 03:07:03,447 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 03:07:03,447 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1579069513] [2021-10-16 03:07:03,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:07:03,448 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 03:07:03,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 03:07:03,449 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 03:07:03,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-10-16 03:07:04,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:07:04,321 INFO L263 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 03:07:04,324 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:07:04,831 INFO L134 CoverageAnalysis]: Checked inductivity of 817 backedges. 489 proven. 0 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2021-10-16 03:07:04,831 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:07:05,287 INFO L134 CoverageAnalysis]: Checked inductivity of 817 backedges. 489 proven. 0 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2021-10-16 03:07:05,287 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 03:07:05,287 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1579069513] [2021-10-16 03:07:05,287 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1579069513] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 03:07:05,287 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:07:05,288 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-16 03:07:05,288 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051723004] [2021-10-16 03:07:05,288 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 03:07:05,288 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 03:07:05,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 03:07:05,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 03:07:05,289 INFO L87 Difference]: Start difference. First operand 1295 states and 1727 transitions. Second operand has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 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) [2021-10-16 03:07:05,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:07:05,511 INFO L93 Difference]: Finished difference Result 2725 states and 3682 transitions. [2021-10-16 03:07:05,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 03:07:05,511 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 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 234 [2021-10-16 03:07:05,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:07:05,520 INFO L225 Difference]: With dead ends: 2725 [2021-10-16 03:07:05,520 INFO L226 Difference]: Without dead ends: 1467 [2021-10-16 03:07:05,522 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 466 GetRequests, 464 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.9ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 03:07:05,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1467 states. [2021-10-16 03:07:05,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1467 to 1419. [2021-10-16 03:07:05,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1419 states, 1418 states have (on average 1.3166431593794077) internal successors, (1867), 1418 states have internal predecessors, (1867), 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) [2021-10-16 03:07:05,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1419 states to 1419 states and 1867 transitions. [2021-10-16 03:07:05,582 INFO L78 Accepts]: Start accepts. Automaton has 1419 states and 1867 transitions. Word has length 234 [2021-10-16 03:07:05,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:07:05,583 INFO L470 AbstractCegarLoop]: Abstraction has 1419 states and 1867 transitions. [2021-10-16 03:07:05,583 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 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) [2021-10-16 03:07:05,583 INFO L276 IsEmpty]: Start isEmpty. Operand 1419 states and 1867 transitions. [2021-10-16 03:07:05,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2021-10-16 03:07:05,590 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:07:05,590 INFO L512 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 12, 12, 12, 10, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:07:05,613 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-10-16 03:07:05,804 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 03:07:05,804 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 03:07:05,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:07:05,805 INFO L82 PathProgramCache]: Analyzing trace with hash 232160640, now seen corresponding path program 1 times [2021-10-16 03:07:05,805 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 03:07:05,806 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1712885415] [2021-10-16 03:07:05,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:07:05,806 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 03:07:05,806 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 03:07:05,807 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 03:07:05,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-10-16 03:07:06,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:07:06,646 INFO L263 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 03:07:06,650 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:07:07,245 INFO L134 CoverageAnalysis]: Checked inductivity of 998 backedges. 635 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2021-10-16 03:07:07,245 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:07:07,768 INFO L134 CoverageAnalysis]: Checked inductivity of 998 backedges. 635 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2021-10-16 03:07:07,769 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 03:07:07,769 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1712885415] [2021-10-16 03:07:07,769 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1712885415] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 03:07:07,769 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:07:07,769 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-16 03:07:07,769 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008804772] [2021-10-16 03:07:07,770 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 03:07:07,770 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 03:07:07,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 03:07:07,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 03:07:07,771 INFO L87 Difference]: Start difference. First operand 1419 states and 1867 transitions. Second operand has 4 states, 4 states have (on average 43.75) internal successors, (175), 4 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) [2021-10-16 03:07:07,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:07:07,882 INFO L93 Difference]: Finished difference Result 5445 states and 7184 transitions. [2021-10-16 03:07:07,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 03:07:07,883 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 43.75) internal successors, (175), 4 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) Word has length 265 [2021-10-16 03:07:07,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:07:07,904 INFO L225 Difference]: With dead ends: 5445 [2021-10-16 03:07:07,905 INFO L226 Difference]: Without dead ends: 4063 [2021-10-16 03:07:07,907 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 528 GetRequests, 526 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.6ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 03:07:07,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4063 states. [2021-10-16 03:07:08,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4063 to 4059. [2021-10-16 03:07:08,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4059 states, 4058 states have (on average 1.318629866929522) internal successors, (5351), 4058 states have internal predecessors, (5351), 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) [2021-10-16 03:07:08,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4059 states to 4059 states and 5351 transitions. [2021-10-16 03:07:08,056 INFO L78 Accepts]: Start accepts. Automaton has 4059 states and 5351 transitions. Word has length 265 [2021-10-16 03:07:08,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:07:08,057 INFO L470 AbstractCegarLoop]: Abstraction has 4059 states and 5351 transitions. [2021-10-16 03:07:08,057 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.75) internal successors, (175), 4 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) [2021-10-16 03:07:08,057 INFO L276 IsEmpty]: Start isEmpty. Operand 4059 states and 5351 transitions. [2021-10-16 03:07:08,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2021-10-16 03:07:08,068 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:07:08,068 INFO L512 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 12, 12, 12, 10, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:07:08,091 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-10-16 03:07:08,291 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 03:07:08,291 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 03:07:08,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:07:08,292 INFO L82 PathProgramCache]: Analyzing trace with hash -391120962, now seen corresponding path program 1 times [2021-10-16 03:07:08,292 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 03:07:08,292 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1190572489] [2021-10-16 03:07:08,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:07:08,293 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 03:07:08,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 03:07:08,294 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 03:07:08,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-10-16 03:07:09,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:07:09,207 INFO L263 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 03:07:09,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:07:09,743 INFO L134 CoverageAnalysis]: Checked inductivity of 998 backedges. 577 proven. 0 refuted. 0 times theorem prover too weak. 421 trivial. 0 not checked. [2021-10-16 03:07:09,744 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:07:10,277 INFO L134 CoverageAnalysis]: Checked inductivity of 998 backedges. 577 proven. 0 refuted. 0 times theorem prover too weak. 421 trivial. 0 not checked. [2021-10-16 03:07:10,277 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 03:07:10,278 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1190572489] [2021-10-16 03:07:10,278 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1190572489] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 03:07:10,278 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:07:10,278 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-16 03:07:10,278 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147561158] [2021-10-16 03:07:10,280 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 03:07:10,280 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 03:07:10,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 03:07:10,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 03:07:10,281 INFO L87 Difference]: Start difference. First operand 4059 states and 5351 transitions. Second operand has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 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) [2021-10-16 03:07:10,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:07:10,571 INFO L93 Difference]: Finished difference Result 8645 states and 11554 transitions. [2021-10-16 03:07:10,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 03:07:10,572 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 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 265 [2021-10-16 03:07:10,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:07:10,605 INFO L225 Difference]: With dead ends: 8645 [2021-10-16 03:07:10,605 INFO L226 Difference]: Without dead ends: 4623 [2021-10-16 03:07:10,610 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 528 GetRequests, 526 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.2ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 03:07:10,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4623 states. [2021-10-16 03:07:10,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4623 to 4491. [2021-10-16 03:07:10,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4491 states, 4490 states have (on average 1.298663697104677) internal successors, (5831), 4490 states have internal predecessors, (5831), 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) [2021-10-16 03:07:10,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4491 states to 4491 states and 5831 transitions. [2021-10-16 03:07:10,815 INFO L78 Accepts]: Start accepts. Automaton has 4491 states and 5831 transitions. Word has length 265 [2021-10-16 03:07:10,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:07:10,816 INFO L470 AbstractCegarLoop]: Abstraction has 4491 states and 5831 transitions. [2021-10-16 03:07:10,816 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 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) [2021-10-16 03:07:10,816 INFO L276 IsEmpty]: Start isEmpty. Operand 4491 states and 5831 transitions. [2021-10-16 03:07:10,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2021-10-16 03:07:10,830 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:07:10,831 INFO L512 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 13, 13, 11, 11, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:07:10,849 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-10-16 03:07:11,046 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 03:07:11,046 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 03:07:11,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:07:11,046 INFO L82 PathProgramCache]: Analyzing trace with hash 1579392902, now seen corresponding path program 1 times [2021-10-16 03:07:11,047 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 03:07:11,047 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [334770422] [2021-10-16 03:07:11,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:07:11,047 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 03:07:11,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 03:07:11,048 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 03:07:11,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-10-16 03:07:11,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:07:11,998 INFO L263 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 03:07:12,001 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:07:12,533 INFO L134 CoverageAnalysis]: Checked inductivity of 1203 backedges. 667 proven. 0 refuted. 0 times theorem prover too weak. 536 trivial. 0 not checked. [2021-10-16 03:07:12,533 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:07:13,003 INFO L134 CoverageAnalysis]: Checked inductivity of 1203 backedges. 667 proven. 0 refuted. 0 times theorem prover too weak. 536 trivial. 0 not checked. [2021-10-16 03:07:13,004 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 03:07:13,004 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [334770422] [2021-10-16 03:07:13,004 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [334770422] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 03:07:13,004 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:07:13,005 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-16 03:07:13,005 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132539866] [2021-10-16 03:07:13,005 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 03:07:13,006 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 03:07:13,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 03:07:13,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 03:07:13,007 INFO L87 Difference]: Start difference. First operand 4491 states and 5831 transitions. Second operand has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 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) [2021-10-16 03:07:13,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:07:13,309 INFO L93 Difference]: Finished difference Result 9209 states and 11994 transitions. [2021-10-16 03:07:13,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 03:07:13,310 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 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 290 [2021-10-16 03:07:13,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:07:13,336 INFO L225 Difference]: With dead ends: 9209 [2021-10-16 03:07:13,336 INFO L226 Difference]: Without dead ends: 4755 [2021-10-16 03:07:13,341 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 578 GetRequests, 576 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.6ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 03:07:13,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4755 states. [2021-10-16 03:07:13,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4755 to 4623. [2021-10-16 03:07:13,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4623 states, 4622 states have (on average 1.2918649935093034) internal successors, (5971), 4622 states have internal predecessors, (5971), 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) [2021-10-16 03:07:13,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4623 states to 4623 states and 5971 transitions. [2021-10-16 03:07:13,551 INFO L78 Accepts]: Start accepts. Automaton has 4623 states and 5971 transitions. Word has length 290 [2021-10-16 03:07:13,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:07:13,552 INFO L470 AbstractCegarLoop]: Abstraction has 4623 states and 5971 transitions. [2021-10-16 03:07:13,552 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 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) [2021-10-16 03:07:13,553 INFO L276 IsEmpty]: Start isEmpty. Operand 4623 states and 5971 transitions. [2021-10-16 03:07:13,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2021-10-16 03:07:13,563 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:07:13,564 INFO L512 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 13, 11, 11, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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] [2021-10-16 03:07:13,579 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-10-16 03:07:13,779 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 03:07:13,779 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 03:07:13,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:07:13,780 INFO L82 PathProgramCache]: Analyzing trace with hash -344125888, now seen corresponding path program 1 times [2021-10-16 03:07:13,781 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 03:07:13,781 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [800249347] [2021-10-16 03:07:13,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:07:13,781 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 03:07:13,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 03:07:13,782 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 03:07:13,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-10-16 03:07:15,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:07:15,051 INFO L263 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 03:07:15,054 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:07:15,591 INFO L134 CoverageAnalysis]: Checked inductivity of 1220 backedges. 680 proven. 0 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2021-10-16 03:07:15,592 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:07:16,177 INFO L134 CoverageAnalysis]: Checked inductivity of 1220 backedges. 680 proven. 0 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2021-10-16 03:07:16,177 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 03:07:16,177 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [800249347] [2021-10-16 03:07:16,177 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [800249347] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 03:07:16,177 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:07:16,178 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-16 03:07:16,178 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962710228] [2021-10-16 03:07:16,179 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 03:07:16,179 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 03:07:16,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 03:07:16,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 03:07:16,180 INFO L87 Difference]: Start difference. First operand 4623 states and 5971 transitions. Second operand has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 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) [2021-10-16 03:07:16,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:07:16,526 INFO L93 Difference]: Finished difference Result 9785 states and 12806 transitions. [2021-10-16 03:07:16,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 03:07:16,527 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 302 [2021-10-16 03:07:16,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:07:16,588 INFO L225 Difference]: With dead ends: 9785 [2021-10-16 03:07:16,588 INFO L226 Difference]: Without dead ends: 5199 [2021-10-16 03:07:16,597 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 602 GetRequests, 600 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.7ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 03:07:16,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5199 states. [2021-10-16 03:07:16,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5199 to 5067. [2021-10-16 03:07:16,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5067 states, 5066 states have (on average 1.275759968416897) internal successors, (6463), 5066 states have internal predecessors, (6463), 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) [2021-10-16 03:07:16,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5067 states to 5067 states and 6463 transitions. [2021-10-16 03:07:16,832 INFO L78 Accepts]: Start accepts. Automaton has 5067 states and 6463 transitions. Word has length 302 [2021-10-16 03:07:16,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:07:16,832 INFO L470 AbstractCegarLoop]: Abstraction has 5067 states and 6463 transitions. [2021-10-16 03:07:16,833 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 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) [2021-10-16 03:07:16,834 INFO L276 IsEmpty]: Start isEmpty. Operand 5067 states and 6463 transitions. [2021-10-16 03:07:16,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 362 [2021-10-16 03:07:16,845 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:07:16,845 INFO L512 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 15, 13, 13, 11, 11, 9, 9, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:07:16,868 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-10-16 03:07:17,059 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 03:07:17,059 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 03:07:17,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:07:17,060 INFO L82 PathProgramCache]: Analyzing trace with hash -1354743787, now seen corresponding path program 1 times [2021-10-16 03:07:17,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 03:07:17,060 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2036389136] [2021-10-16 03:07:17,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:07:17,060 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 03:07:17,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 03:07:17,061 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 03:07:17,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-10-16 03:07:18,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:07:18,242 INFO L263 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-16 03:07:18,246 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:07:18,991 INFO L134 CoverageAnalysis]: Checked inductivity of 1563 backedges. 904 proven. 10 refuted. 0 times theorem prover too weak. 649 trivial. 0 not checked. [2021-10-16 03:07:18,992 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:07:19,699 INFO L134 CoverageAnalysis]: Checked inductivity of 1563 backedges. 904 proven. 10 refuted. 0 times theorem prover too weak. 649 trivial. 0 not checked. [2021-10-16 03:07:19,700 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 03:07:19,700 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2036389136] [2021-10-16 03:07:19,700 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2036389136] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 03:07:19,700 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [179637545] [2021-10-16 03:07:19,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:07:19,701 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-16 03:07:19,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/cvc4 [2021-10-16 03:07:19,708 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-16 03:07:19,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2021-10-16 03:07:21,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:07:21,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-16 03:07:21,526 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:07:22,240 INFO L134 CoverageAnalysis]: Checked inductivity of 1563 backedges. 904 proven. 10 refuted. 0 times theorem prover too weak. 649 trivial. 0 not checked. [2021-10-16 03:07:22,241 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:07:22,873 INFO L134 CoverageAnalysis]: Checked inductivity of 1563 backedges. 904 proven. 10 refuted. 0 times theorem prover too weak. 649 trivial. 0 not checked. [2021-10-16 03:07:22,873 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [179637545] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 03:07:22,873 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1778951536] [2021-10-16 03:07:22,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:07:22,873 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 03:07:22,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 03:07:22,874 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 03:07:22,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-10-16 03:07:24,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:07:24,652 INFO L263 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-16 03:07:24,657 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:07:25,349 INFO L134 CoverageAnalysis]: Checked inductivity of 1563 backedges. 904 proven. 10 refuted. 0 times theorem prover too weak. 649 trivial. 0 not checked. [2021-10-16 03:07:25,349 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:07:26,101 INFO L134 CoverageAnalysis]: Checked inductivity of 1563 backedges. 904 proven. 10 refuted. 0 times theorem prover too weak. 649 trivial. 0 not checked. [2021-10-16 03:07:26,101 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1778951536] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 03:07:26,101 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-16 03:07:26,102 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4, 4, 4, 4] total 6 [2021-10-16 03:07:26,103 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881113580] [2021-10-16 03:07:26,104 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-16 03:07:26,104 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 03:07:26,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-16 03:07:26,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-16 03:07:26,105 INFO L87 Difference]: Start difference. First operand 5067 states and 6463 transitions. Second operand has 6 states, 6 states have (on average 38.833333333333336) internal successors, (233), 6 states have internal predecessors, (233), 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) [2021-10-16 03:07:26,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:07:26,803 INFO L93 Difference]: Finished difference Result 16420 states and 20930 transitions. [2021-10-16 03:07:26,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-16 03:07:26,804 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 38.833333333333336) internal successors, (233), 6 states have internal predecessors, (233), 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 361 [2021-10-16 03:07:26,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:07:26,821 INFO L225 Difference]: With dead ends: 16420 [2021-10-16 03:07:26,821 INFO L226 Difference]: Without dead ends: 11390 [2021-10-16 03:07:26,828 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2168 GetRequests, 2160 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 44.6ms TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2021-10-16 03:07:26,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11390 states. [2021-10-16 03:07:27,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11390 to 6379. [2021-10-16 03:07:27,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6379 states, 6378 states have (on average 1.297428661022264) internal successors, (8275), 6378 states have internal predecessors, (8275), 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) [2021-10-16 03:07:27,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6379 states to 6379 states and 8275 transitions. [2021-10-16 03:07:27,061 INFO L78 Accepts]: Start accepts. Automaton has 6379 states and 8275 transitions. Word has length 361 [2021-10-16 03:07:27,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:07:27,061 INFO L470 AbstractCegarLoop]: Abstraction has 6379 states and 8275 transitions. [2021-10-16 03:07:27,062 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 38.833333333333336) internal successors, (233), 6 states have internal predecessors, (233), 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) [2021-10-16 03:07:27,062 INFO L276 IsEmpty]: Start isEmpty. Operand 6379 states and 8275 transitions. [2021-10-16 03:07:27,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2021-10-16 03:07:27,074 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:07:27,074 INFO L512 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 15, 14, 13, 11, 11, 9, 9, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:07:27,095 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2021-10-16 03:07:27,312 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2021-10-16 03:07:27,492 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (21)] Ended with exit code 0 [2021-10-16 03:07:27,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt [2021-10-16 03:07:27,688 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 03:07:27,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:07:27,688 INFO L82 PathProgramCache]: Analyzing trace with hash -1246228626, now seen corresponding path program 1 times [2021-10-16 03:07:27,688 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 03:07:27,689 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1054058132] [2021-10-16 03:07:27,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:07:27,689 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 03:07:27,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 03:07:27,690 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 03:07:27,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-10-16 03:07:29,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:07:29,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 03:07:29,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:07:30,056 INFO L134 CoverageAnalysis]: Checked inductivity of 1576 backedges. 987 proven. 0 refuted. 0 times theorem prover too weak. 589 trivial. 0 not checked. [2021-10-16 03:07:30,056 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:07:30,940 INFO L134 CoverageAnalysis]: Checked inductivity of 1576 backedges. 987 proven. 0 refuted. 0 times theorem prover too weak. 589 trivial. 0 not checked. [2021-10-16 03:07:30,940 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 03:07:30,940 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1054058132] [2021-10-16 03:07:30,941 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1054058132] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 03:07:30,941 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:07:30,941 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-16 03:07:30,941 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107841262] [2021-10-16 03:07:30,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 03:07:30,942 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 03:07:30,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 03:07:30,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:07:30,943 INFO L87 Difference]: Start difference. First operand 6379 states and 8275 transitions. Second operand has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 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) [2021-10-16 03:07:31,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:07:31,129 INFO L93 Difference]: Finished difference Result 16955 states and 21973 transitions. [2021-10-16 03:07:31,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 03:07:31,129 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 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 363 [2021-10-16 03:07:31,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:07:31,143 INFO L225 Difference]: With dead ends: 16955 [2021-10-16 03:07:31,143 INFO L226 Difference]: Without dead ends: 6812 [2021-10-16 03:07:31,153 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 724 GetRequests, 723 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:07:31,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6812 states. [2021-10-16 03:07:31,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6812 to 5973. [2021-10-16 03:07:31,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5973 states, 5972 states have (on average 1.27947086403215) internal successors, (7641), 5972 states have internal predecessors, (7641), 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) [2021-10-16 03:07:31,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5973 states to 5973 states and 7641 transitions. [2021-10-16 03:07:31,350 INFO L78 Accepts]: Start accepts. Automaton has 5973 states and 7641 transitions. Word has length 363 [2021-10-16 03:07:31,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:07:31,350 INFO L470 AbstractCegarLoop]: Abstraction has 5973 states and 7641 transitions. [2021-10-16 03:07:31,350 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 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) [2021-10-16 03:07:31,351 INFO L276 IsEmpty]: Start isEmpty. Operand 5973 states and 7641 transitions. [2021-10-16 03:07:31,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 474 [2021-10-16 03:07:31,361 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:07:31,362 INFO L512 BasicCegarLoop]: trace histogram [19, 19, 18, 18, 18, 18, 18, 18, 18, 17, 16, 14, 14, 12, 12, 10, 10, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 1, 1, 1, 1] [2021-10-16 03:07:31,383 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2021-10-16 03:07:31,579 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 03:07:31,580 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 03:07:31,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:07:31,580 INFO L82 PathProgramCache]: Analyzing trace with hash -2059048774, now seen corresponding path program 1 times [2021-10-16 03:07:31,581 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 03:07:31,581 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2047200035] [2021-10-16 03:07:31,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:07:31,581 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 03:07:31,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 03:07:31,582 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 03:07:31,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2021-10-16 03:07:33,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:07:33,331 INFO L263 TraceCheckSpWp]: Trace formula consists of 567 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 03:07:33,335 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:07:34,124 INFO L134 CoverageAnalysis]: Checked inductivity of 2528 backedges. 1281 proven. 0 refuted. 0 times theorem prover too weak. 1247 trivial. 0 not checked. [2021-10-16 03:07:34,124 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:07:35,056 INFO L134 CoverageAnalysis]: Checked inductivity of 2528 backedges. 1281 proven. 0 refuted. 0 times theorem prover too weak. 1247 trivial. 0 not checked. [2021-10-16 03:07:35,057 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 03:07:35,057 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2047200035] [2021-10-16 03:07:35,057 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2047200035] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 03:07:35,057 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:07:35,057 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-16 03:07:35,057 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003172981] [2021-10-16 03:07:35,058 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 03:07:35,058 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 03:07:35,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 03:07:35,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 03:07:35,061 INFO L87 Difference]: Start difference. First operand 5973 states and 7641 transitions. Second operand has 4 states, 4 states have (on average 49.25) internal successors, (197), 4 states have internal predecessors, (197), 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) [2021-10-16 03:07:35,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:07:35,342 INFO L93 Difference]: Finished difference Result 12416 states and 16090 transitions. [2021-10-16 03:07:35,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 03:07:35,343 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 49.25) internal successors, (197), 4 states have internal predecessors, (197), 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 473 [2021-10-16 03:07:35,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:07:35,354 INFO L225 Difference]: With dead ends: 12416 [2021-10-16 03:07:35,354 INFO L226 Difference]: Without dead ends: 5535 [2021-10-16 03:07:35,363 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 944 GetRequests, 942 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.8ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 03:07:35,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5535 states. [2021-10-16 03:07:35,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5535 to 5467. [2021-10-16 03:07:35,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5467 states, 5466 states have (on average 1.2607025246981338) internal successors, (6891), 5466 states have internal predecessors, (6891), 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) [2021-10-16 03:07:35,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5467 states to 5467 states and 6891 transitions. [2021-10-16 03:07:35,585 INFO L78 Accepts]: Start accepts. Automaton has 5467 states and 6891 transitions. Word has length 473 [2021-10-16 03:07:35,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:07:35,586 INFO L470 AbstractCegarLoop]: Abstraction has 5467 states and 6891 transitions. [2021-10-16 03:07:35,586 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.25) internal successors, (197), 4 states have internal predecessors, (197), 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) [2021-10-16 03:07:35,586 INFO L276 IsEmpty]: Start isEmpty. Operand 5467 states and 6891 transitions. [2021-10-16 03:07:35,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 475 [2021-10-16 03:07:35,600 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:07:35,600 INFO L512 BasicCegarLoop]: trace histogram [19, 19, 18, 18, 18, 18, 18, 18, 18, 17, 16, 14, 14, 13, 12, 10, 10, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 1, 1, 1, 1, 1, 1] [2021-10-16 03:07:35,618 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2021-10-16 03:07:35,818 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 03:07:35,818 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 03:07:35,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:07:35,819 INFO L82 PathProgramCache]: Analyzing trace with hash 887086097, now seen corresponding path program 1 times [2021-10-16 03:07:35,819 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 03:07:35,820 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [804052841] [2021-10-16 03:07:35,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:07:35,820 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 03:07:35,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 03:07:35,821 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 03:07:35,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2021-10-16 03:07:37,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:07:37,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 558 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 03:07:37,778 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:07:38,641 INFO L134 CoverageAnalysis]: Checked inductivity of 2540 backedges. 1293 proven. 0 refuted. 0 times theorem prover too weak. 1247 trivial. 0 not checked. [2021-10-16 03:07:38,642 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:07:39,562 INFO L134 CoverageAnalysis]: Checked inductivity of 2540 backedges. 1293 proven. 0 refuted. 0 times theorem prover too weak. 1247 trivial. 0 not checked. [2021-10-16 03:07:39,562 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 03:07:39,562 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [804052841] [2021-10-16 03:07:39,563 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [804052841] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 03:07:39,563 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:07:39,563 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-16 03:07:39,563 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107872301] [2021-10-16 03:07:39,564 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 03:07:39,564 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 03:07:39,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 03:07:39,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 03:07:39,565 INFO L87 Difference]: Start difference. First operand 5467 states and 6891 transitions. Second operand has 4 states, 4 states have (on average 50.25) internal successors, (201), 4 states have internal predecessors, (201), 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) [2021-10-16 03:07:39,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:07:39,791 INFO L93 Difference]: Finished difference Result 10716 states and 13709 transitions. [2021-10-16 03:07:39,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 03:07:39,792 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 50.25) internal successors, (201), 4 states have internal predecessors, (201), 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 474 [2021-10-16 03:07:39,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:07:39,799 INFO L225 Difference]: With dead ends: 10716 [2021-10-16 03:07:39,799 INFO L226 Difference]: Without dead ends: 5169 [2021-10-16 03:07:39,806 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 946 GetRequests, 944 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.9ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 03:07:39,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5169 states. [2021-10-16 03:07:39,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5169 to 5094. [2021-10-16 03:07:39,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5094 states, 5093 states have (on average 1.2403298645199292) internal successors, (6317), 5093 states have internal predecessors, (6317), 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) [2021-10-16 03:07:40,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5094 states to 5094 states and 6317 transitions. [2021-10-16 03:07:40,006 INFO L78 Accepts]: Start accepts. Automaton has 5094 states and 6317 transitions. Word has length 474 [2021-10-16 03:07:40,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:07:40,007 INFO L470 AbstractCegarLoop]: Abstraction has 5094 states and 6317 transitions. [2021-10-16 03:07:40,007 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 50.25) internal successors, (201), 4 states have internal predecessors, (201), 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) [2021-10-16 03:07:40,007 INFO L276 IsEmpty]: Start isEmpty. Operand 5094 states and 6317 transitions. [2021-10-16 03:07:40,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 513 [2021-10-16 03:07:40,017 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:07:40,018 INFO L512 BasicCegarLoop]: trace histogram [20, 20, 19, 19, 19, 19, 19, 19, 19, 18, 17, 15, 15, 13, 13, 11, 11, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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] [2021-10-16 03:07:40,039 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2021-10-16 03:07:40,230 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 03:07:40,231 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 03:07:40,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:07:40,231 INFO L82 PathProgramCache]: Analyzing trace with hash -372933097, now seen corresponding path program 1 times [2021-10-16 03:07:40,232 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 03:07:40,232 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [423639191] [2021-10-16 03:07:40,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:07:40,232 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 03:07:40,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 03:07:40,233 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 03:07:40,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2021-10-16 03:07:42,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:07:42,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 596 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-16 03:07:42,380 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:07:43,422 INFO L134 CoverageAnalysis]: Checked inductivity of 2915 backedges. 1654 proven. 14 refuted. 0 times theorem prover too weak. 1247 trivial. 0 not checked. [2021-10-16 03:07:43,423 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:07:44,495 INFO L134 CoverageAnalysis]: Checked inductivity of 2915 backedges. 1654 proven. 14 refuted. 0 times theorem prover too weak. 1247 trivial. 0 not checked. [2021-10-16 03:07:44,496 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 03:07:44,496 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [423639191] [2021-10-16 03:07:44,496 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [423639191] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 03:07:44,496 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1573597138] [2021-10-16 03:07:44,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:07:44,496 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-16 03:07:44,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/cvc4 [2021-10-16 03:07:44,497 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-16 03:07:44,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (27)] Waiting until timeout for monitored process [2021-10-16 03:07:47,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:07:47,784 INFO L263 TraceCheckSpWp]: Trace formula consists of 596 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 03:07:47,791 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:07:48,861 INFO L134 CoverageAnalysis]: Checked inductivity of 2915 backedges. 1350 proven. 0 refuted. 0 times theorem prover too weak. 1565 trivial. 0 not checked. [2021-10-16 03:07:48,862 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:07:49,769 INFO L134 CoverageAnalysis]: Checked inductivity of 2915 backedges. 1350 proven. 0 refuted. 0 times theorem prover too weak. 1565 trivial. 0 not checked. [2021-10-16 03:07:49,769 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1573597138] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 03:07:49,770 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-10-16 03:07:49,770 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [4, 4] total 7 [2021-10-16 03:07:49,771 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975718155] [2021-10-16 03:07:49,772 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 03:07:49,772 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 03:07:49,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 03:07:49,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-16 03:07:49,773 INFO L87 Difference]: Start difference. First operand 5094 states and 6317 transitions. Second operand has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 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) [2021-10-16 03:07:49,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:07:49,876 INFO L93 Difference]: Finished difference Result 5119 states and 6347 transitions. [2021-10-16 03:07:49,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 03:07:49,877 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 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 512 [2021-10-16 03:07:49,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:07:49,885 INFO L225 Difference]: With dead ends: 5119 [2021-10-16 03:07:49,885 INFO L226 Difference]: Without dead ends: 5042 [2021-10-16 03:07:49,887 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2044 GetRequests, 2039 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 23.7ms TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-16 03:07:49,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5042 states. [2021-10-16 03:07:50,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5042 to 5019. [2021-10-16 03:07:50,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5019 states, 5018 states have (on average 1.2401355121562376) internal successors, (6223), 5018 states have internal predecessors, (6223), 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) [2021-10-16 03:07:50,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5019 states to 5019 states and 6223 transitions. [2021-10-16 03:07:50,058 INFO L78 Accepts]: Start accepts. Automaton has 5019 states and 6223 transitions. Word has length 512 [2021-10-16 03:07:50,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:07:50,059 INFO L470 AbstractCegarLoop]: Abstraction has 5019 states and 6223 transitions. [2021-10-16 03:07:50,060 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 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) [2021-10-16 03:07:50,060 INFO L276 IsEmpty]: Start isEmpty. Operand 5019 states and 6223 transitions. [2021-10-16 03:07:50,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 625 [2021-10-16 03:07:50,072 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:07:50,073 INFO L512 BasicCegarLoop]: trace histogram [22, 22, 21, 21, 21, 21, 21, 21, 21, 20, 19, 17, 17, 16, 16, 15, 15, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 8, 8, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2021-10-16 03:07:50,093 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2021-10-16 03:07:50,307 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (27)] Forceful destruction successful, exit code 0 [2021-10-16 03:07:50,493 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt [2021-10-16 03:07:50,494 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 03:07:50,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:07:50,494 INFO L82 PathProgramCache]: Analyzing trace with hash -2062587142, now seen corresponding path program 1 times [2021-10-16 03:07:50,495 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 03:07:50,495 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1652931742] [2021-10-16 03:07:50,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:07:50,496 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 03:07:50,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 03:07:50,497 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 03:07:50,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2021-10-16 03:07:53,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:07:53,221 INFO L263 TraceCheckSpWp]: Trace formula consists of 715 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-16 03:07:53,227 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:07:54,452 INFO L134 CoverageAnalysis]: Checked inductivity of 4154 backedges. 2137 proven. 14 refuted. 0 times theorem prover too weak. 2003 trivial. 0 not checked. [2021-10-16 03:07:54,453 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:07:55,611 INFO L134 CoverageAnalysis]: Checked inductivity of 4154 backedges. 2137 proven. 14 refuted. 0 times theorem prover too weak. 2003 trivial. 0 not checked. [2021-10-16 03:07:55,612 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 03:07:55,612 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1652931742] [2021-10-16 03:07:55,612 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1652931742] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 03:07:55,612 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [246770906] [2021-10-16 03:07:55,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:07:55,612 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-16 03:07:55,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/cvc4 [2021-10-16 03:07:55,613 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-16 03:07:55,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (29)] Waiting until timeout for monitored process [2021-10-16 03:07:59,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:07:59,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 715 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-16 03:07:59,565 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:08:00,655 INFO L134 CoverageAnalysis]: Checked inductivity of 4154 backedges. 2137 proven. 14 refuted. 0 times theorem prover too weak. 2003 trivial. 0 not checked. [2021-10-16 03:08:00,655 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:08:01,839 INFO L134 CoverageAnalysis]: Checked inductivity of 4154 backedges. 2137 proven. 14 refuted. 0 times theorem prover too weak. 2003 trivial. 0 not checked. [2021-10-16 03:08:01,839 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [246770906] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 03:08:01,839 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1707714460] [2021-10-16 03:08:01,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:08:01,839 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 03:08:01,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 03:08:01,840 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 03:08:01,841 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2021-10-16 03:08:05,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:08:05,594 INFO L263 TraceCheckSpWp]: Trace formula consists of 715 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-16 03:08:05,599 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:08:06,838 INFO L134 CoverageAnalysis]: Checked inductivity of 4154 backedges. 2137 proven. 14 refuted. 0 times theorem prover too weak. 2003 trivial. 0 not checked. [2021-10-16 03:08:06,839 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:08:08,085 INFO L134 CoverageAnalysis]: Checked inductivity of 4154 backedges. 2137 proven. 14 refuted. 0 times theorem prover too weak. 2003 trivial. 0 not checked. [2021-10-16 03:08:08,085 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1707714460] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 03:08:08,085 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-16 03:08:08,086 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4, 4, 4, 4] total 6 [2021-10-16 03:08:08,087 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107037432] [2021-10-16 03:08:08,088 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-16 03:08:08,088 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 03:08:08,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-16 03:08:08,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-16 03:08:08,089 INFO L87 Difference]: Start difference. First operand 5019 states and 6223 transitions. Second operand has 6 states, 6 states have (on average 46.333333333333336) internal successors, (278), 6 states have internal predecessors, (278), 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) [2021-10-16 03:08:08,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:08:08,325 INFO L93 Difference]: Finished difference Result 5254 states and 6521 transitions. [2021-10-16 03:08:08,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-16 03:08:08,326 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 46.333333333333336) internal successors, (278), 6 states have internal predecessors, (278), 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 624 [2021-10-16 03:08:08,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:08:08,326 INFO L225 Difference]: With dead ends: 5254 [2021-10-16 03:08:08,326 INFO L226 Difference]: Without dead ends: 0 [2021-10-16 03:08:08,330 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3742 GetRequests, 3736 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 26.4ms TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-10-16 03:08:08,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-16 03:08:08,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-16 03:08:08,330 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) [2021-10-16 03:08:08,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-16 03:08:08,331 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 624 [2021-10-16 03:08:08,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:08:08,331 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-16 03:08:08,331 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 46.333333333333336) internal successors, (278), 6 states have internal predecessors, (278), 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) [2021-10-16 03:08:08,331 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-16 03:08:08,332 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-16 03:08:08,334 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 03:08:08,348 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (29)] Forceful destruction successful, exit code 0 [2021-10-16 03:08:08,565 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2021-10-16 03:08:08,783 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2021-10-16 03:08:08,948 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3,30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 03:08:08,950 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-16 03:08:08,956 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 03:08:09,216 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 03:08:09,217 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 03:08:09,230 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 03:08:09,881 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 03:08:10,011 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 03:08:10,012 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 03:08:10,038 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 03:08:10,040 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 03:08:10,084 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 03:08:10,123 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 03:08:10,202 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 03:08:10,205 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 03:08:10,235 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 03:08:10,291 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 03:08:10,363 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 03:08:10,417 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 03:08:10,418 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 03:08:10,442 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 03:08:10,467 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 03:08:10,468 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 03:08:10,522 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 03:08:13,882 INFO L857 garLoopResultBuilder]: For program point L399(lines 399 403) no Hoare annotation was computed. [2021-10-16 03:08:13,882 INFO L853 garLoopResultBuilder]: At program point L333(lines 87 562) the Hoare annotation is: false [2021-10-16 03:08:13,882 INFO L857 garLoopResultBuilder]: For program point L399-2(lines 213 496) no Hoare annotation was computed. [2021-10-16 03:08:13,882 INFO L857 garLoopResultBuilder]: For program point L234(lines 234 245) no Hoare annotation was computed. [2021-10-16 03:08:13,882 INFO L857 garLoopResultBuilder]: For program point L234-2(lines 213 496) no Hoare annotation was computed. [2021-10-16 03:08:13,883 INFO L857 garLoopResultBuilder]: For program point L532(lines 532 548) no Hoare annotation was computed. [2021-10-16 03:08:13,883 INFO L857 garLoopResultBuilder]: For program point L533(lines 533 547) no Hoare annotation was computed. [2021-10-16 03:08:13,883 INFO L857 garLoopResultBuilder]: For program point L368(lines 368 370) no Hoare annotation was computed. [2021-10-16 03:08:13,883 INFO L857 garLoopResultBuilder]: For program point L335(lines 335 337) no Hoare annotation was computed. [2021-10-16 03:08:13,883 INFO L857 garLoopResultBuilder]: For program point L302(lines 302 304) no Hoare annotation was computed. [2021-10-16 03:08:13,883 INFO L857 garLoopResultBuilder]: For program point L236(lines 236 239) no Hoare annotation was computed. [2021-10-16 03:08:13,883 INFO L857 garLoopResultBuilder]: For program point L302-2(lines 300 308) no Hoare annotation was computed. [2021-10-16 03:08:13,884 INFO L857 garLoopResultBuilder]: For program point L203(lines 203 501) no Hoare annotation was computed. [2021-10-16 03:08:13,884 INFO L857 garLoopResultBuilder]: For program point L170(lines 170 512) no Hoare annotation was computed. [2021-10-16 03:08:13,884 INFO L857 garLoopResultBuilder]: For program point L137(lines 137 523) no Hoare annotation was computed. [2021-10-16 03:08:13,884 INFO L857 garLoopResultBuilder]: For program point L104(lines 104 108) no Hoare annotation was computed. [2021-10-16 03:08:13,884 INFO L857 garLoopResultBuilder]: For program point L534(lines 534 539) no Hoare annotation was computed. [2021-10-16 03:08:13,885 INFO L857 garLoopResultBuilder]: For program point L534-2(lines 533 547) no Hoare annotation was computed. [2021-10-16 03:08:13,885 INFO L853 garLoopResultBuilder]: At program point L204(lines 200 502) the Hoare annotation is: (let ((.cse7 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4400 32)))) (.cse12 (= (_ bv2 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) (.cse0 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4368 32)))) (.cse1 (not (= (_ bv3 32) ULTIMATE.start_ssl3_connect_~blastFlag~0))) (.cse2 (not (= (_ bv4432 32) ULTIMATE.start_ssl3_connect_~s__state~0))) (.cse3 (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32))) (.cse4 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4096 32)))) (.cse5 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv20480 32)))) (.cse6 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv12292 32)))) (.cse8 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32)))) (.cse9 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32)))) (.cse10 (= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 (_ bv4560 32))) (.cse11 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32))))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11) (and .cse0 .cse12 .cse2 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse11 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4401 32)))) (and .cse0 .cse12 .cse2 .cse3 .cse4 .cse5 .cse6 .cse8 .cse9 .cse11) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse8 .cse9 .cse10 .cse11))) [2021-10-16 03:08:13,885 INFO L853 garLoopResultBuilder]: At program point L138(lines 134 524) the Hoare annotation is: (let ((.cse0 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4368 32)))) (.cse1 (not (= (_ bv4432 32) ULTIMATE.start_ssl3_connect_~s__state~0))) (.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32))) (.cse3 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4096 32)))) (.cse4 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv20480 32)))) (.cse5 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv12292 32)))) (.cse6 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32)))) (.cse7 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32)))) (.cse8 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32))))) (or (and .cse0 (not (= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 (_ bv4368 32))) (not (= (_ bv3 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse1 .cse2 .cse3 .cse4 .cse5 (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse6 .cse7 .cse8) (and .cse0 .cse1 .cse3 .cse4 .cse5 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4400 32))) .cse6 (= (_ bv1 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) .cse7 .cse8 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4401 32)))) (and .cse0 (= (_ bv2 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8))) [2021-10-16 03:08:13,885 INFO L857 garLoopResultBuilder]: For program point L105(lines 105 107) no Hoare annotation was computed. [2021-10-16 03:08:13,886 INFO L857 garLoopResultBuilder]: For program point L536(lines 536 538) no Hoare annotation was computed. [2021-10-16 03:08:13,886 INFO L857 garLoopResultBuilder]: For program point L206(lines 206 500) no Hoare annotation was computed. [2021-10-16 03:08:13,886 INFO L857 garLoopResultBuilder]: For program point L173(lines 173 511) no Hoare annotation was computed. [2021-10-16 03:08:13,886 INFO L857 garLoopResultBuilder]: For program point L140(lines 140 522) no Hoare annotation was computed. [2021-10-16 03:08:13,886 INFO L857 garLoopResultBuilder]: For program point L372(lines 372 377) no Hoare annotation was computed. [2021-10-16 03:08:13,886 INFO L857 garLoopResultBuilder]: For program point L372-2(lines 372 377) no Hoare annotation was computed. [2021-10-16 03:08:13,887 INFO L857 garLoopResultBuilder]: For program point L240(lines 240 243) no Hoare annotation was computed. [2021-10-16 03:08:13,887 INFO L853 garLoopResultBuilder]: At program point L207(lines 206 500) the Hoare annotation is: (let ((.cse11 (= (_ bv2 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) (.cse0 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4368 32)))) (.cse1 (not (= (_ bv3 32) ULTIMATE.start_ssl3_connect_~blastFlag~0))) (.cse2 (not (= (_ bv4432 32) ULTIMATE.start_ssl3_connect_~s__state~0))) (.cse3 (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32))) (.cse4 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4096 32)))) (.cse5 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv20480 32)))) (.cse6 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv12292 32)))) (.cse7 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32)))) (.cse8 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32)))) (.cse9 (= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 (_ bv4560 32))) (.cse10 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32))))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4400 32))) .cse7 .cse8 .cse9 .cse10) (and (= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 (_ bv3 32)) .cse11 (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4352 32))) (and .cse0 .cse11 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse10) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse7 .cse8 .cse9 .cse10))) [2021-10-16 03:08:13,887 INFO L853 garLoopResultBuilder]: At program point L174(lines 164 514) the Hoare annotation is: (and (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4368 32))) (not (= (_ bv3 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) (not (= (_ bv4432 32) ULTIMATE.start_ssl3_connect_~s__state~0)) (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32)) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4096 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv20480 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv12292 32))) (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32)))) [2021-10-16 03:08:13,887 INFO L857 garLoopResultBuilder]: For program point L472-1(lines 472 474) no Hoare annotation was computed. [2021-10-16 03:08:13,888 INFO L857 garLoopResultBuilder]: For program point L274(lines 274 276) no Hoare annotation was computed. [2021-10-16 03:08:13,888 INFO L860 garLoopResultBuilder]: At program point L572(lines 564 574) the Hoare annotation is: true [2021-10-16 03:08:13,888 INFO L857 garLoopResultBuilder]: For program point L209(lines 209 499) no Hoare annotation was computed. [2021-10-16 03:08:13,888 INFO L857 garLoopResultBuilder]: For program point L176(lines 176 510) no Hoare annotation was computed. [2021-10-16 03:08:13,888 INFO L857 garLoopResultBuilder]: For program point L143(lines 143 521) no Hoare annotation was computed. [2021-10-16 03:08:13,888 INFO L857 garLoopResultBuilder]: For program point L110-1(lines 87 562) no Hoare annotation was computed. [2021-10-16 03:08:13,889 INFO L857 garLoopResultBuilder]: For program point L408(lines 408 411) no Hoare annotation was computed. [2021-10-16 03:08:13,889 INFO L860 garLoopResultBuilder]: At program point L210(lines 209 499) the Hoare annotation is: true [2021-10-16 03:08:13,889 INFO L853 garLoopResultBuilder]: At program point L144(lines 140 522) the Hoare annotation is: (let ((.cse0 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4368 32)))) (.cse1 (not (= (_ bv4432 32) ULTIMATE.start_ssl3_connect_~s__state~0))) (.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32))) (.cse3 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4096 32)))) (.cse4 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv20480 32)))) (.cse5 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv12292 32)))) (.cse6 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32)))) (.cse7 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32)))) (.cse8 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32))))) (or (and .cse0 (not (= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 (_ bv4368 32))) (not (= (_ bv3 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse1 .cse2 .cse3 .cse4 .cse5 (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse6 .cse7 .cse8) (and .cse0 (= (_ bv2 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8))) [2021-10-16 03:08:13,889 INFO L857 garLoopResultBuilder]: For program point L111(line 111) no Hoare annotation was computed. [2021-10-16 03:08:13,889 INFO L857 garLoopResultBuilder]: For program point L541(lines 541 545) no Hoare annotation was computed. [2021-10-16 03:08:13,890 INFO L857 garLoopResultBuilder]: For program point L443(lines 443 445) no Hoare annotation was computed. [2021-10-16 03:08:13,890 INFO L857 garLoopResultBuilder]: For program point L344(lines 344 346) no Hoare annotation was computed. [2021-10-16 03:08:13,890 INFO L860 garLoopResultBuilder]: At program point L212(lines 211 499) the Hoare annotation is: true [2021-10-16 03:08:13,890 INFO L857 garLoopResultBuilder]: For program point L179(lines 179 509) no Hoare annotation was computed. [2021-10-16 03:08:13,890 INFO L857 garLoopResultBuilder]: For program point L146(lines 146 520) no Hoare annotation was computed. [2021-10-16 03:08:13,890 INFO L857 garLoopResultBuilder]: For program point L113(lines 113 531) no Hoare annotation was computed. [2021-10-16 03:08:13,891 INFO L853 garLoopResultBuilder]: At program point L180(lines 176 510) the Hoare annotation is: (and (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4368 32))) (not (= (_ bv3 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) (not (= (_ bv4432 32) ULTIMATE.start_ssl3_connect_~s__state~0)) (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32)) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4096 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv20480 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv12292 32))) (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32)))) [2021-10-16 03:08:13,891 INFO L853 garLoopResultBuilder]: At program point L114(lines 113 531) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv12292 32)))) (or (and (= (_ bv0 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) .cse0) (and .cse0 (= (_ bv2 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32))))) [2021-10-16 03:08:13,891 INFO L857 garLoopResultBuilder]: For program point L478(lines 478 480) no Hoare annotation was computed. [2021-10-16 03:08:13,891 INFO L857 garLoopResultBuilder]: For program point L478-2(lines 478 480) no Hoare annotation was computed. [2021-10-16 03:08:13,891 INFO L857 garLoopResultBuilder]: For program point L446(lines 446 450) no Hoare annotation was computed. [2021-10-16 03:08:13,892 INFO L857 garLoopResultBuilder]: For program point L446-2(lines 446 450) no Hoare annotation was computed. [2021-10-16 03:08:13,892 INFO L857 garLoopResultBuilder]: For program point L347(lines 347 351) no Hoare annotation was computed. [2021-10-16 03:08:13,892 INFO L857 garLoopResultBuilder]: For program point L281(lines 281 283) no Hoare annotation was computed. [2021-10-16 03:08:13,892 INFO L857 garLoopResultBuilder]: For program point L347-2(lines 347 351) no Hoare annotation was computed. [2021-10-16 03:08:13,892 INFO L857 garLoopResultBuilder]: For program point L281-2(lines 213 496) no Hoare annotation was computed. [2021-10-16 03:08:13,893 INFO L857 garLoopResultBuilder]: For program point L182(lines 182 508) no Hoare annotation was computed. [2021-10-16 03:08:13,893 INFO L857 garLoopResultBuilder]: For program point L149(lines 149 519) no Hoare annotation was computed. [2021-10-16 03:08:13,893 INFO L857 garLoopResultBuilder]: For program point L116(lines 116 530) no Hoare annotation was computed. [2021-10-16 03:08:13,893 INFO L853 garLoopResultBuilder]: At program point L150(lines 146 520) the Hoare annotation is: (and (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4368 32))) (not (= (_ bv4432 32) ULTIMATE.start_ssl3_connect_~s__state~0)) (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32)) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4096 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv20480 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv12292 32))) (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32)))) [2021-10-16 03:08:13,893 INFO L857 garLoopResultBuilder]: For program point L316(lines 316 318) no Hoare annotation was computed. [2021-10-16 03:08:13,893 INFO L857 garLoopResultBuilder]: For program point L250(lines 250 253) no Hoare annotation was computed. [2021-10-16 03:08:13,894 INFO L857 garLoopResultBuilder]: For program point L316-2(lines 213 496) no Hoare annotation was computed. [2021-10-16 03:08:13,894 INFO L857 garLoopResultBuilder]: For program point L416(lines 416 418) no Hoare annotation was computed. [2021-10-16 03:08:13,894 INFO L857 garLoopResultBuilder]: For program point L383(lines 383 385) no Hoare annotation was computed. [2021-10-16 03:08:13,894 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-16 03:08:13,894 INFO L853 garLoopResultBuilder]: At program point L218(lines 116 530) the Hoare annotation is: (let ((.cse0 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4368 32)))) (.cse1 (not (= (_ bv4432 32) ULTIMATE.start_ssl3_connect_~s__state~0))) (.cse2 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv12292 32)))) (.cse3 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32))))) (or (and .cse0 (= (_ bv2 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) .cse1 (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32)) .cse2 .cse3) (and .cse0 (= (_ bv0 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) .cse1 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv20480 32))) .cse2 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4400 32))) .cse3 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4401 32)))))) [2021-10-16 03:08:13,895 INFO L857 garLoopResultBuilder]: For program point L185(lines 185 507) no Hoare annotation was computed. [2021-10-16 03:08:13,895 INFO L857 garLoopResultBuilder]: For program point L152(lines 152 518) no Hoare annotation was computed. [2021-10-16 03:08:13,895 INFO L857 garLoopResultBuilder]: For program point L119(lines 119 529) no Hoare annotation was computed. [2021-10-16 03:08:13,895 INFO L853 garLoopResultBuilder]: At program point L186(lines 182 508) the Hoare annotation is: (and (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4368 32))) (not (= (_ bv3 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) (not (= (_ bv4432 32) ULTIMATE.start_ssl3_connect_~s__state~0)) (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32)) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4096 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv20480 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv12292 32))) (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32)))) [2021-10-16 03:08:13,895 INFO L857 garLoopResultBuilder]: For program point L484(lines 484 486) no Hoare annotation was computed. [2021-10-16 03:08:13,895 INFO L857 garLoopResultBuilder]: For program point L484-2(lines 484 486) no Hoare annotation was computed. [2021-10-16 03:08:13,896 INFO L860 garLoopResultBuilder]: At program point L551(lines 109 552) the Hoare annotation is: true [2021-10-16 03:08:13,896 INFO L857 garLoopResultBuilder]: For program point L287(lines 287 291) no Hoare annotation was computed. [2021-10-16 03:08:13,896 INFO L857 garLoopResultBuilder]: For program point L287-2(lines 287 291) no Hoare annotation was computed. [2021-10-16 03:08:13,896 INFO L857 garLoopResultBuilder]: For program point L188(lines 188 506) no Hoare annotation was computed. [2021-10-16 03:08:13,896 INFO L857 garLoopResultBuilder]: For program point L155(lines 155 517) no Hoare annotation was computed. [2021-10-16 03:08:13,896 INFO L857 garLoopResultBuilder]: For program point L122(lines 122 528) no Hoare annotation was computed. [2021-10-16 03:08:13,897 INFO L853 garLoopResultBuilder]: At program point L156(lines 152 518) the Hoare annotation is: (and (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4368 32))) (not (= (_ bv3 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32)) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4096 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv20480 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv12292 32))) (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32)))) [2021-10-16 03:08:13,897 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-16 03:08:13,897 INFO L857 garLoopResultBuilder]: For program point L223(lines 223 225) no Hoare annotation was computed. [2021-10-16 03:08:13,897 INFO L857 garLoopResultBuilder]: For program point L223-2(lines 223 225) no Hoare annotation was computed. [2021-10-16 03:08:13,897 INFO L857 garLoopResultBuilder]: For program point L191(lines 191 505) no Hoare annotation was computed. [2021-10-16 03:08:13,897 INFO L857 garLoopResultBuilder]: For program point L158(lines 158 516) no Hoare annotation was computed. [2021-10-16 03:08:13,898 INFO L857 garLoopResultBuilder]: For program point L125(lines 125 527) no Hoare annotation was computed. [2021-10-16 03:08:13,898 INFO L857 garLoopResultBuilder]: For program point L489(lines 489 491) no Hoare annotation was computed. [2021-10-16 03:08:13,898 INFO L857 garLoopResultBuilder]: For program point L456(lines 456 467) no Hoare annotation was computed. [2021-10-16 03:08:13,898 INFO L857 garLoopResultBuilder]: For program point L423(lines 423 437) no Hoare annotation was computed. [2021-10-16 03:08:13,898 INFO L857 garLoopResultBuilder]: For program point L423-1(lines 423 437) no Hoare annotation was computed. [2021-10-16 03:08:13,898 INFO L857 garLoopResultBuilder]: For program point L456-2(lines 456 467) no Hoare annotation was computed. [2021-10-16 03:08:13,899 INFO L857 garLoopResultBuilder]: For program point L324(lines 324 327) no Hoare annotation was computed. [2021-10-16 03:08:13,899 INFO L853 garLoopResultBuilder]: At program point L192(lines 188 506) the Hoare annotation is: (let ((.cse0 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4368 32)))) (.cse1 (not (= (_ bv4432 32) ULTIMATE.start_ssl3_connect_~s__state~0))) (.cse2 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4096 32)))) (.cse3 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv20480 32)))) (.cse4 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv12292 32)))) (.cse5 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32)))) (.cse6 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32)))) (.cse7 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32))))) (or (and .cse0 (= (_ bv2 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) .cse1 .cse2 .cse3 .cse4 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4400 32))) .cse5 .cse6 .cse7 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4401 32)))) (and .cse0 (not (= (_ bv3 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse1 (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32)) .cse2 .cse3 .cse4 (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse5 .cse6 .cse7))) [2021-10-16 03:08:13,899 INFO L857 garLoopResultBuilder]: For program point L556(lines 556 558) no Hoare annotation was computed. [2021-10-16 03:08:13,899 INFO L857 garLoopResultBuilder]: For program point L556-2(lines 556 558) no Hoare annotation was computed. [2021-10-16 03:08:13,899 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-16 03:08:13,899 INFO L857 garLoopResultBuilder]: For program point L359(lines 359 361) no Hoare annotation was computed. [2021-10-16 03:08:13,900 INFO L857 garLoopResultBuilder]: For program point L194(lines 194 504) no Hoare annotation was computed. [2021-10-16 03:08:13,900 INFO L857 garLoopResultBuilder]: For program point L161(lines 161 515) no Hoare annotation was computed. [2021-10-16 03:08:13,900 INFO L857 garLoopResultBuilder]: For program point L128(lines 128 526) no Hoare annotation was computed. [2021-10-16 03:08:13,900 INFO L857 garLoopResultBuilder]: For program point L393(lines 393 395) no Hoare annotation was computed. [2021-10-16 03:08:13,900 INFO L857 garLoopResultBuilder]: For program point L228(lines 228 231) no Hoare annotation was computed. [2021-10-16 03:08:13,901 INFO L853 garLoopResultBuilder]: At program point L162(lines 158 516) the Hoare annotation is: (and (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4368 32))) (not (= (_ bv3 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) (not (= (_ bv4432 32) ULTIMATE.start_ssl3_connect_~s__state~0)) (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32)) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4096 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv20480 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv12292 32))) (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32)))) [2021-10-16 03:08:13,901 INFO L857 garLoopResultBuilder]: For program point L96(lines 96 102) no Hoare annotation was computed. [2021-10-16 03:08:13,901 INFO L857 garLoopResultBuilder]: For program point L427(lines 427 433) no Hoare annotation was computed. [2021-10-16 03:08:13,901 INFO L857 garLoopResultBuilder]: For program point L262(lines 262 268) no Hoare annotation was computed. [2021-10-16 03:08:13,901 INFO L857 garLoopResultBuilder]: For program point L461(lines 461 464) no Hoare annotation was computed. [2021-10-16 03:08:13,901 INFO L857 garLoopResultBuilder]: For program point L197(lines 197 503) no Hoare annotation was computed. [2021-10-16 03:08:13,901 INFO L857 garLoopResultBuilder]: For program point L164(lines 164 514) no Hoare annotation was computed. [2021-10-16 03:08:13,902 INFO L857 garLoopResultBuilder]: For program point L131(lines 131 525) no Hoare annotation was computed. [2021-10-16 03:08:13,902 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-16 03:08:13,902 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 560) no Hoare annotation was computed. [2021-10-16 03:08:13,902 INFO L860 garLoopResultBuilder]: At program point L561(lines 22 563) the Hoare annotation is: true [2021-10-16 03:08:13,902 INFO L853 garLoopResultBuilder]: At program point L198(lines 194 504) the Hoare annotation is: (let ((.cse0 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4368 32)))) (.cse1 (not (= (_ bv4432 32) ULTIMATE.start_ssl3_connect_~s__state~0))) (.cse2 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4096 32)))) (.cse3 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv20480 32)))) (.cse4 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv12292 32)))) (.cse5 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32)))) (.cse6 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32)))) (.cse7 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32))))) (or (and .cse0 (= (_ bv2 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) .cse1 .cse2 .cse3 .cse4 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4400 32))) .cse5 .cse6 .cse7 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4401 32)))) (and .cse0 (not (= (_ bv3 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse1 (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32)) .cse2 .cse3 .cse4 (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse5 .cse6 .cse7))) [2021-10-16 03:08:13,903 INFO L853 garLoopResultBuilder]: At program point L132(lines 128 526) the Hoare annotation is: (let ((.cse0 (not (= (_ bv4432 32) ULTIMATE.start_ssl3_connect_~s__state~0))) (.cse1 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4096 32)))) (.cse2 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv20480 32)))) (.cse3 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv12292 32)))) (.cse4 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32)))) (.cse5 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32))))) (or (and (= (_ bv2 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) .cse0 (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32)) .cse1 .cse2 .cse3 .cse4 .cse5) (and (= (_ bv0 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) .cse0 .cse1 .cse2 .cse3 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4400 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32))) .cse4 .cse5 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4401 32)))))) [2021-10-16 03:08:13,903 INFO L857 garLoopResultBuilder]: For program point L99(lines 99 101) no Hoare annotation was computed. [2021-10-16 03:08:13,903 INFO L857 garLoopResultBuilder]: For program point L99-2(lines 96 102) no Hoare annotation was computed. [2021-10-16 03:08:13,903 INFO L857 garLoopResultBuilder]: For program point L298(lines 298 308) no Hoare annotation was computed. [2021-10-16 03:08:13,903 INFO L857 garLoopResultBuilder]: For program point L265(lines 265 267) no Hoare annotation was computed. [2021-10-16 03:08:13,904 INFO L857 garLoopResultBuilder]: For program point L298-2(lines 298 308) no Hoare annotation was computed. [2021-10-16 03:08:13,904 INFO L857 garLoopResultBuilder]: For program point L265-2(lines 213 496) no Hoare annotation was computed. [2021-10-16 03:08:13,904 INFO L853 garLoopResultBuilder]: At program point L497(lines 110 550) the Hoare annotation is: (let ((.cse3 (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4560 32))) (.cse8 (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4352 32))) (.cse4 (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4368 32))) (.cse2 (= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 (_ bv4560 32))) (.cse5 (not (= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 (_ bv4368 32)))) (.cse10 (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4384 32))) (.cse0 (not (= (_ bv3 32) ULTIMATE.start_ssl3_connect_~blastFlag~0))) (.cse1 (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32))) (.cse6 (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0))) (.cse9 (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4512 32))) (.cse7 (= (_ bv2 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) (.cse11 (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4528 32)))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 (= (_ bv0 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) (and .cse5 .cse0 .cse1 (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4400 32)) .cse6) (and .cse7 .cse3) (and .cse0 (= (_ bv4464 32) ULTIMATE.start_ssl3_connect_~s__state~0) .cse1 .cse6) (and .cse0 .cse1 (= (_ bv4432 32) ULTIMATE.start_ssl3_connect_~s__state~0) .cse6) (and .cse1 (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4416 32)) .cse6) (and .cse7 .cse1) (and (= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 (_ bv3 32)) .cse7 .cse8) (and .cse7 .cse9) (and .cse0 .cse1 .cse6 (= (_ bv4480 32) ULTIMATE.start_ssl3_connect_~s__state~0)) (and .cse0 .cse1 (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4448 32)) .cse6) (and .cse5 .cse0 (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv3 32))) (and .cse0 .cse1 .cse2 .cse8) (and (not .cse4) .cse0 .cse1 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4096 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv20480 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv12292 32))) .cse6 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32))) .cse2 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32)))) (and (= (_ bv1 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) .cse10) (and .cse5 .cse0 .cse1 .cse6 .cse10) (and .cse0 .cse1 .cse11 .cse6) (and .cse0 (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4496 32)) .cse1 .cse6) (and .cse0 .cse1 .cse6 .cse9) (and .cse7 .cse11))) [2021-10-16 03:08:13,904 INFO L857 garLoopResultBuilder]: For program point L332(lines 332 334) no Hoare annotation was computed. [2021-10-16 03:08:13,904 INFO L857 garLoopResultBuilder]: For program point L200(lines 200 502) no Hoare annotation was computed. [2021-10-16 03:08:13,905 INFO L857 garLoopResultBuilder]: For program point L167(lines 167 513) no Hoare annotation was computed. [2021-10-16 03:08:13,905 INFO L857 garLoopResultBuilder]: For program point L134(lines 134 524) no Hoare annotation was computed. [2021-10-16 03:08:13,910 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 03:08:13,946 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 03:08:13 BoogieIcfgContainer [2021-10-16 03:08:13,946 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-16 03:08:13,947 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-16 03:08:13,947 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-16 03:08:13,947 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-16 03:08:13,948 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:06:47" (3/4) ... [2021-10-16 03:08:13,951 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-16 03:08:13,972 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-16 03:08:13,973 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-16 03:08:13,974 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-16 03:08:13,975 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-16 03:08:14,068 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/witness.graphml [2021-10-16 03:08:14,068 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-16 03:08:14,070 INFO L168 Benchmark]: Toolchain (without parser) took 87434.89 ms. Allocated memory was 58.7 MB in the beginning and 690.0 MB in the end (delta: 631.2 MB). Free memory was 36.7 MB in the beginning and 324.3 MB in the end (delta: -287.6 MB). Peak memory consumption was 343.3 MB. Max. memory is 16.1 GB. [2021-10-16 03:08:14,070 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 58.7 MB. Free memory is still 39.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 03:08:14,071 INFO L168 Benchmark]: CACSL2BoogieTranslator took 443.16 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 36.6 MB in the beginning and 52.4 MB in the end (delta: -15.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-16 03:08:14,071 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.41 ms. Allocated memory is still 71.3 MB. Free memory was 52.1 MB in the beginning and 49.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 03:08:14,072 INFO L168 Benchmark]: Boogie Preprocessor took 81.99 ms. Allocated memory is still 71.3 MB. Free memory was 49.6 MB in the beginning and 47.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 03:08:14,072 INFO L168 Benchmark]: RCFGBuilder took 621.98 ms. Allocated memory is still 71.3 MB. Free memory was 47.5 MB in the beginning and 40.4 MB in the end (delta: 7.1 MB). Peak memory consumption was 17.3 MB. Max. memory is 16.1 GB. [2021-10-16 03:08:14,073 INFO L168 Benchmark]: TraceAbstraction took 86099.21 ms. Allocated memory was 71.3 MB in the beginning and 690.0 MB in the end (delta: 618.7 MB). Free memory was 39.9 MB in the beginning and 334.8 MB in the end (delta: -294.9 MB). Peak memory consumption was 530.1 MB. Max. memory is 16.1 GB. [2021-10-16 03:08:14,073 INFO L168 Benchmark]: Witness Printer took 121.16 ms. Allocated memory is still 690.0 MB. Free memory was 333.8 MB in the beginning and 324.3 MB in the end (delta: 9.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-16 03:08:14,076 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 58.7 MB. Free memory is still 39.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 443.16 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 36.6 MB in the beginning and 52.4 MB in the end (delta: -15.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 59.41 ms. Allocated memory is still 71.3 MB. Free memory was 52.1 MB in the beginning and 49.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 81.99 ms. Allocated memory is still 71.3 MB. Free memory was 49.6 MB in the beginning and 47.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 621.98 ms. Allocated memory is still 71.3 MB. Free memory was 47.5 MB in the beginning and 40.4 MB in the end (delta: 7.1 MB). Peak memory consumption was 17.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 86099.21 ms. Allocated memory was 71.3 MB in the beginning and 690.0 MB in the end (delta: 618.7 MB). Free memory was 39.9 MB in the beginning and 334.8 MB in the end (delta: -294.9 MB). Peak memory consumption was 530.1 MB. Max. memory is 16.1 GB. * Witness Printer took 121.16 ms. Allocated memory is still 690.0 MB. Free memory was 333.8 MB in the beginning and 324.3 MB in the end (delta: 9.4 MB). Peak memory consumption was 8.4 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: 560]: 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, 128 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 85978.4ms, OverallIterations: 24, TraceHistogramMax: 22, EmptinessCheckTime: 176.5ms, AutomataDifference: 5290.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 4932.9ms, InitialAbstractionConstructionTime: 17.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 4171 SDtfs, 3413 SDslu, 3470 SDs, 0 SdLazy, 3169 SolverSat, 663 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2491.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15976 GetRequests, 15923 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 199.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=6379occurred in iteration=19, InterpolantAutomatonStates: 93, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 2260.6ms AutomataMinimizationTime, 24 MinimizatonAttempts, 6553 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 22 LocationsWithAnnotation, 22 PreInvPairs, 332 NumberOfFragments, 1426 HoareAnnotationTreeSize, 22 FomulaSimplifications, 21460 FormulaSimplificationTreeSizeReduction, 1610.4ms HoareSimplificationTime, 22 FomulaSimplificationsInter, 13561 FormulaSimplificationTreeSizeReductionInter, 3306.6ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 532.6ms SsaConstructionTime, 2219.6ms SatisfiabilityAnalysisTime, 32645.9ms InterpolantComputationTime, 8011 NumberOfCodeBlocks, 8011 NumberOfCodeBlocksAsserted, 29 NumberOfCheckSat, 15964 ConstructedInterpolants, 0 QuantifiedInterpolants, 20430 SizeOfPredicates, 10 NumberOfNonLiveVariables, 9860 ConjunctsInSsa, 68 ConjunctsInUnsatCore, 58 InterpolantComputations, 44 PerfectInterpolantSequences, 74760/74932 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 176]: Loop Invariant Derived loop invariant: (((((((((!(s__state == 4368bv32) && !(3bv32 == blastFlag)) && !(4432bv32 == s__state)) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(5bv32 == blastFlag)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32) - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 113]: Loop Invariant Derived loop invariant: (0bv32 == blastFlag && s__state == 12292bv32) || ((s__state == 12292bv32 && 2bv32 == blastFlag) && s__hit == 0bv32) - InvariantResult [Line: 110]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((!(3bv32 == blastFlag) && s__hit == 0bv32) && s__s3__tmp__next_state___0 == 4560bv32) && s__state == 4560bv32) || (s__state == 4368bv32 && 0bv32 == blastFlag)) || ((((!(s__s3__tmp__next_state___0 == 4368bv32) && !(3bv32 == blastFlag)) && s__hit == 0bv32) && s__state == 4400bv32) && !(5bv32 == blastFlag))) || (2bv32 == blastFlag && s__state == 4560bv32)) || (((!(3bv32 == blastFlag) && 4464bv32 == s__state) && s__hit == 0bv32) && !(5bv32 == blastFlag))) || (((!(3bv32 == blastFlag) && s__hit == 0bv32) && 4432bv32 == s__state) && !(5bv32 == blastFlag))) || ((s__hit == 0bv32 && s__state == 4416bv32) && !(5bv32 == blastFlag))) || (2bv32 == blastFlag && s__hit == 0bv32)) || ((s__s3__tmp__next_state___0 == 3bv32 && 2bv32 == blastFlag) && s__state == 4352bv32)) || (2bv32 == blastFlag && s__state == 4512bv32)) || (((!(3bv32 == blastFlag) && s__hit == 0bv32) && !(5bv32 == blastFlag)) && 4480bv32 == s__state)) || (((!(3bv32 == blastFlag) && s__hit == 0bv32) && s__state == 4448bv32) && !(5bv32 == blastFlag))) || ((!(s__s3__tmp__next_state___0 == 4368bv32) && !(3bv32 == blastFlag)) && s__state == 3bv32)) || (((!(3bv32 == blastFlag) && s__hit == 0bv32) && s__s3__tmp__next_state___0 == 4560bv32) && s__state == 4352bv32)) || ((((((((((!(s__state == 4368bv32) && !(3bv32 == blastFlag)) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(5bv32 == blastFlag)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && s__s3__tmp__next_state___0 == 4560bv32) && !(s__state == 4099bv32))) || (1bv32 == blastFlag && s__state == 4384bv32)) || ((((!(s__s3__tmp__next_state___0 == 4368bv32) && !(3bv32 == blastFlag)) && s__hit == 0bv32) && !(5bv32 == blastFlag)) && s__state == 4384bv32)) || (((!(3bv32 == blastFlag) && s__hit == 0bv32) && s__state == 4528bv32) && !(5bv32 == blastFlag))) || (((!(3bv32 == blastFlag) && s__state == 4496bv32) && s__hit == 0bv32) && !(5bv32 == blastFlag))) || (((!(3bv32 == blastFlag) && s__hit == 0bv32) && !(5bv32 == blastFlag)) && s__state == 4512bv32)) || (2bv32 == blastFlag && s__state == 4528bv32) - InvariantResult [Line: 194]: Loop Invariant Derived loop invariant: ((((((((((!(s__state == 4368bv32) && 2bv32 == blastFlag) && !(4432bv32 == s__state)) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4400bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) && !(s__state == 4401bv32)) || ((((((((((!(s__state == 4368bv32) && !(3bv32 == blastFlag)) && !(4432bv32 == s__state)) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(5bv32 == blastFlag)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) - InvariantResult [Line: 564]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 206]: Loop Invariant Derived loop invariant: (((((((((((((!(s__state == 4368bv32) && !(3bv32 == blastFlag)) && !(4432bv32 == s__state)) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4400bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && s__s3__tmp__next_state___0 == 4560bv32) && !(s__state == 4099bv32)) || ((s__s3__tmp__next_state___0 == 3bv32 && 2bv32 == blastFlag) && s__state == 4352bv32)) || (((((((((!(s__state == 4368bv32) && 2bv32 == blastFlag) && !(4432bv32 == s__state)) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32))) || (((((((((((!(s__state == 4368bv32) && !(3bv32 == blastFlag)) && !(4432bv32 == s__state)) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(5bv32 == blastFlag)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && s__s3__tmp__next_state___0 == 4560bv32) && !(s__state == 4099bv32)) - InvariantResult [Line: 211]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 116]: Loop Invariant Derived loop invariant: (((((!(s__state == 4368bv32) && 2bv32 == blastFlag) && !(4432bv32 == s__state)) && s__hit == 0bv32) && !(s__state == 12292bv32)) && !(s__state == 4369bv32)) || (((((((((!(s__state == 4368bv32) && 0bv32 == blastFlag) && !(4432bv32 == s__state)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4400bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) && !(s__state == 4401bv32)) - InvariantResult [Line: 140]: Loop Invariant Derived loop invariant: (((((((((((!(s__state == 4368bv32) && !(s__s3__tmp__next_state___0 == 4368bv32)) && !(3bv32 == blastFlag)) && !(4432bv32 == s__state)) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(5bv32 == blastFlag)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) || (((((((((!(s__state == 4368bv32) && 2bv32 == blastFlag) && !(4432bv32 == s__state)) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) - InvariantResult [Line: 200]: Loop Invariant Derived loop invariant: (((((((((((((!(s__state == 4368bv32) && !(3bv32 == blastFlag)) && !(4432bv32 == s__state)) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4400bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && s__s3__tmp__next_state___0 == 4560bv32) && !(s__state == 4099bv32)) || ((((((((((!(s__state == 4368bv32) && 2bv32 == blastFlag) && !(4432bv32 == s__state)) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4400bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) && !(s__state == 4401bv32))) || (((((((((!(s__state == 4368bv32) && 2bv32 == blastFlag) && !(4432bv32 == s__state)) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32))) || (((((((((((!(s__state == 4368bv32) && !(3bv32 == blastFlag)) && !(4432bv32 == s__state)) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(5bv32 == blastFlag)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && s__s3__tmp__next_state___0 == 4560bv32) && !(s__state == 4099bv32)) - InvariantResult [Line: 209]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 128]: Loop Invariant Derived loop invariant: (((((((2bv32 == blastFlag && !(4432bv32 == s__state)) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) || (((((((((0bv32 == blastFlag && !(4432bv32 == s__state)) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4400bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) && !(s__state == 4401bv32)) - InvariantResult [Line: 152]: Loop Invariant Derived loop invariant: ((((((((!(s__state == 4368bv32) && !(3bv32 == blastFlag)) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(5bv32 == blastFlag)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32) - InvariantResult [Line: 188]: Loop Invariant Derived loop invariant: ((((((((((!(s__state == 4368bv32) && 2bv32 == blastFlag) && !(4432bv32 == s__state)) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4400bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) && !(s__state == 4401bv32)) || ((((((((((!(s__state == 4368bv32) && !(3bv32 == blastFlag)) && !(4432bv32 == s__state)) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(5bv32 == blastFlag)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) - InvariantResult [Line: 164]: Loop Invariant Derived loop invariant: (((((((((!(s__state == 4368bv32) && !(3bv32 == blastFlag)) && !(4432bv32 == s__state)) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(5bv32 == blastFlag)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32) - InvariantResult [Line: 87]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 134]: Loop Invariant Derived loop invariant: ((((((((((((!(s__state == 4368bv32) && !(s__s3__tmp__next_state___0 == 4368bv32)) && !(3bv32 == blastFlag)) && !(4432bv32 == s__state)) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(5bv32 == blastFlag)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) || ((((((((((!(s__state == 4368bv32) && !(4432bv32 == s__state)) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4400bv32)) && !(s__state == 4369bv32)) && 1bv32 == blastFlag) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) && !(s__state == 4401bv32))) || (((((((((!(s__state == 4368bv32) && 2bv32 == blastFlag) && !(4432bv32 == s__state)) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) - InvariantResult [Line: 146]: Loop Invariant Derived loop invariant: ((((((((!(s__state == 4368bv32) && !(4432bv32 == s__state)) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(5bv32 == blastFlag)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32) - InvariantResult [Line: 109]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 182]: Loop Invariant Derived loop invariant: (((((((((!(s__state == 4368bv32) && !(3bv32 == blastFlag)) && !(4432bv32 == s__state)) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(5bv32 == blastFlag)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32) - InvariantResult [Line: 158]: Loop Invariant Derived loop invariant: (((((((((!(s__state == 4368bv32) && !(3bv32 == blastFlag)) && !(4432bv32 == s__state)) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(5bv32 == blastFlag)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32) RESULT: Ultimate proved your program to be correct! [2021-10-16 03:08:14,165 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89705556-8a1c-480f-9832-1a787abe3ed0/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...