./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/openssl-simplified/s3_clnt_3.cil-1.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_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/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_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/openssl-simplified/s3_clnt_3.cil-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/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_0bc22cbb-e716-47e1-99f9-539388b413f6/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 7f1e0945ef9e6e0ada02f655611b7763d861fe47 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/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_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/openssl-simplified/s3_clnt_3.cil-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/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_0bc22cbb-e716-47e1-99f9-539388b413f6/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 7f1e0945ef9e6e0ada02f655611b7763d861fe47 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 01:59:55,012 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 01:59:55,014 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 01:59:55,045 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 01:59:55,046 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 01:59:55,047 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 01:59:55,049 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 01:59:55,051 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 01:59:55,053 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 01:59:55,055 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 01:59:55,056 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 01:59:55,057 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 01:59:55,058 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 01:59:55,059 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 01:59:55,061 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 01:59:55,062 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 01:59:55,063 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 01:59:55,064 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 01:59:55,066 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 01:59:55,068 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 01:59:55,070 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 01:59:55,072 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 01:59:55,073 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 01:59:55,074 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 01:59:55,077 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 01:59:55,078 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 01:59:55,078 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 01:59:55,080 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 01:59:55,080 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 01:59:55,081 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 01:59:55,082 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 01:59:55,083 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 01:59:55,084 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 01:59:55,085 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 01:59:55,086 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 01:59:55,087 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 01:59:55,087 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 01:59:55,088 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 01:59:55,088 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 01:59:55,089 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 01:59:55,090 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 01:59:55,091 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-16 01:59:55,116 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 01:59:55,117 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 01:59:55,118 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 01:59:55,118 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 01:59:55,118 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 01:59:55,119 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 01:59:55,119 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-16 01:59:55,119 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 01:59:55,120 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 01:59:55,120 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-16 01:59:55,121 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-16 01:59:55,121 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 01:59:55,121 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-16 01:59:55,121 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-16 01:59:55,122 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-16 01:59:55,122 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 01:59:55,123 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 01:59:55,123 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 01:59:55,123 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 01:59:55,124 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 01:59:55,124 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 01:59:55,124 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 01:59:55,124 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 01:59:55,124 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 01:59:55,125 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 01:59:55,125 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 01:59:55,125 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 01:59:55,125 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 01:59:55,126 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 01:59:55,126 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 01:59:55,126 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 01:59:55,126 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 01:59:55,126 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 01:59:55,127 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 01:59:55,127 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-16 01:59:55,127 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 01:59:55,127 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 01:59:55,128 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 01:59:55,128 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 01:59:55,128 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_0bc22cbb-e716-47e1-99f9-539388b413f6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7f1e0945ef9e6e0ada02f655611b7763d861fe47 [2021-10-16 01:59:55,380 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 01:59:55,402 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 01:59:55,404 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 01:59:55,406 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 01:59:55,406 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 01:59:55,407 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/openssl-simplified/s3_clnt_3.cil-1.c [2021-10-16 01:59:55,478 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/data/cc04b3f06/5acf4032c5cb483ca89cec7067d8f71f/FLAG27fe30367 [2021-10-16 01:59:55,910 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 01:59:55,911 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/sv-benchmarks/c/openssl-simplified/s3_clnt_3.cil-1.c [2021-10-16 01:59:55,925 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/data/cc04b3f06/5acf4032c5cb483ca89cec7067d8f71f/FLAG27fe30367 [2021-10-16 01:59:55,939 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/data/cc04b3f06/5acf4032c5cb483ca89cec7067d8f71f [2021-10-16 01:59:55,941 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 01:59:55,942 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 01:59:55,944 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 01:59:55,944 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 01:59:55,953 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 01:59:55,953 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:59:55" (1/1) ... [2021-10-16 01:59:55,954 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68ea3522 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:59:55, skipping insertion in model container [2021-10-16 01:59:55,955 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:59:55" (1/1) ... [2021-10-16 01:59:55,961 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 01:59:55,997 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 01:59:56,210 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_0bc22cbb-e716-47e1-99f9-539388b413f6/sv-benchmarks/c/openssl-simplified/s3_clnt_3.cil-1.c[36888,36901] [2021-10-16 01:59:56,216 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 01:59:56,224 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 01:59:56,277 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_0bc22cbb-e716-47e1-99f9-539388b413f6/sv-benchmarks/c/openssl-simplified/s3_clnt_3.cil-1.c[36888,36901] [2021-10-16 01:59:56,280 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 01:59:56,293 INFO L208 MainTranslator]: Completed translation [2021-10-16 01:59:56,293 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:59:56 WrapperNode [2021-10-16 01:59:56,294 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 01:59:56,295 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 01:59:56,295 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 01:59:56,295 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 01:59:56,316 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:59:56" (1/1) ... [2021-10-16 01:59:56,325 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:59:56" (1/1) ... [2021-10-16 01:59:56,357 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 01:59:56,358 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 01:59:56,358 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 01:59:56,358 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 01:59:56,366 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:59:56" (1/1) ... [2021-10-16 01:59:56,367 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:59:56" (1/1) ... [2021-10-16 01:59:56,371 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:59:56" (1/1) ... [2021-10-16 01:59:56,371 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:59:56" (1/1) ... [2021-10-16 01:59:56,379 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:59:56" (1/1) ... [2021-10-16 01:59:56,386 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:59:56" (1/1) ... [2021-10-16 01:59:56,388 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:59:56" (1/1) ... [2021-10-16 01:59:56,407 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 01:59:56,408 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 01:59:56,408 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 01:59:56,408 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 01:59:56,409 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:59:56" (1/1) ... [2021-10-16 01:59:56,416 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 01:59:56,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 01:59:56,466 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 01:59:56,477 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 01:59:56,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 01:59:56,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 01:59:56,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-16 01:59:56,505 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 01:59:56,611 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-16 01:59:56,986 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2021-10-16 01:59:56,986 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2021-10-16 01:59:57,502 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 01:59:57,502 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-16 01:59:57,505 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:59:57 BoogieIcfgContainer [2021-10-16 01:59:57,505 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 01:59:57,509 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 01:59:57,509 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 01:59:57,513 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 01:59:57,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 01:59:55" (1/3) ... [2021-10-16 01:59:57,515 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29d5a364 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:59:57, skipping insertion in model container [2021-10-16 01:59:57,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:59:56" (2/3) ... [2021-10-16 01:59:57,516 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29d5a364 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:59:57, skipping insertion in model container [2021-10-16 01:59:57,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:59:57" (3/3) ... [2021-10-16 01:59:57,519 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt_3.cil-1.c [2021-10-16 01:59:57,528 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 01:59:57,528 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-16 01:59:57,596 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 01:59:57,607 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 01:59:57,607 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-16 01:59:57,628 INFO L276 IsEmpty]: Start isEmpty. Operand has 84 states, 82 states have (on average 1.7682926829268293) internal successors, (145), 83 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 01:59:57,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-16 01:59:57,637 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 01:59:57,637 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 01:59:57,638 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 01:59:57,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:59:57,648 INFO L82 PathProgramCache]: Analyzing trace with hash -1079361268, now seen corresponding path program 1 times [2021-10-16 01:59:57,667 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 01:59:57,668 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200267632] [2021-10-16 01:59:57,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:59:57,670 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 01:59:57,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:59:57,913 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 01:59:57,913 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 01:59:57,914 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200267632] [2021-10-16 01:59:57,914 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200267632] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 01:59:57,915 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 01:59:57,915 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-16 01:59:57,917 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904519281] [2021-10-16 01:59:57,923 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 01:59:57,924 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 01:59:57,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 01:59:57,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 01:59:57,937 INFO L87 Difference]: Start difference. First operand has 84 states, 82 states have (on average 1.7682926829268293) internal successors, (145), 83 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) 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 01:59:58,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 01:59:58,059 INFO L93 Difference]: Finished difference Result 169 states and 293 transitions. [2021-10-16 01:59:58,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:59:58,061 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 01:59:58,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 01:59:58,071 INFO L225 Difference]: With dead ends: 169 [2021-10-16 01:59:58,071 INFO L226 Difference]: Without dead ends: 83 [2021-10-16 01:59:58,074 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 01:59:58,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2021-10-16 01:59:58,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2021-10-16 01:59:58,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 82 states have (on average 1.4634146341463414) internal successors, (120), 82 states have internal predecessors, (120), 0 states have call successors, (0), 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 01:59:58,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 120 transitions. [2021-10-16 01:59:58,113 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 120 transitions. Word has length 19 [2021-10-16 01:59:58,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 01:59:58,114 INFO L470 AbstractCegarLoop]: Abstraction has 83 states and 120 transitions. [2021-10-16 01:59:58,114 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 01:59:58,115 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 120 transitions. [2021-10-16 01:59:58,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-16 01:59:58,116 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 01:59:58,116 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 01:59:58,116 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-16 01:59:58,117 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 01:59:58,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:59:58,118 INFO L82 PathProgramCache]: Analyzing trace with hash -2014223486, now seen corresponding path program 1 times [2021-10-16 01:59:58,118 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 01:59:58,118 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697057056] [2021-10-16 01:59:58,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:59:58,119 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 01:59:58,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:59:58,174 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 01:59:58,175 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 01:59:58,175 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697057056] [2021-10-16 01:59:58,175 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697057056] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 01:59:58,175 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 01:59:58,176 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-16 01:59:58,176 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168819155] [2021-10-16 01:59:58,177 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 01:59:58,178 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 01:59:58,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 01:59:58,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 01:59:58,179 INFO L87 Difference]: Start difference. First operand 83 states and 120 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 01:59:58,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 01:59:58,343 INFO L93 Difference]: Finished difference Result 178 states and 261 transitions. [2021-10-16 01:59:58,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:59:58,343 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 01:59:58,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 01:59:58,348 INFO L225 Difference]: With dead ends: 178 [2021-10-16 01:59:58,349 INFO L226 Difference]: Without dead ends: 98 [2021-10-16 01:59:58,350 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 01:59:58,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2021-10-16 01:59:58,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 96. [2021-10-16 01:59:58,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 95 states have (on average 1.431578947368421) internal successors, (136), 95 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:59:58,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 136 transitions. [2021-10-16 01:59:58,378 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 136 transitions. Word has length 28 [2021-10-16 01:59:58,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 01:59:58,379 INFO L470 AbstractCegarLoop]: Abstraction has 96 states and 136 transitions. [2021-10-16 01:59:58,379 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 01:59:58,379 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 136 transitions. [2021-10-16 01:59:58,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-10-16 01:59:58,382 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 01:59:58,382 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 01:59:58,383 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-16 01:59:58,384 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 01:59:58,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:59:58,388 INFO L82 PathProgramCache]: Analyzing trace with hash 2120410970, now seen corresponding path program 1 times [2021-10-16 01:59:58,389 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 01:59:58,390 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612509513] [2021-10-16 01:59:58,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:59:58,391 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 01:59:58,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:59:58,461 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 01:59:58,461 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 01:59:58,461 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612509513] [2021-10-16 01:59:58,462 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612509513] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 01:59:58,462 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 01:59:58,462 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-16 01:59:58,462 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622421915] [2021-10-16 01:59:58,463 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 01:59:58,463 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 01:59:58,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 01:59:58,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 01:59:58,464 INFO L87 Difference]: Start difference. First operand 96 states and 136 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 01:59:58,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 01:59:58,567 INFO L93 Difference]: Finished difference Result 206 states and 297 transitions. [2021-10-16 01:59:58,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:59:58,568 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 01:59:58,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 01:59:58,570 INFO L225 Difference]: With dead ends: 206 [2021-10-16 01:59:58,570 INFO L226 Difference]: Without dead ends: 113 [2021-10-16 01:59:58,571 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 01:59:58,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2021-10-16 01:59:58,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 111. [2021-10-16 01:59:58,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 110 states have (on average 1.4) internal successors, (154), 110 states have internal predecessors, (154), 0 states have call successors, (0), 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 01:59:58,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 154 transitions. [2021-10-16 01:59:58,580 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 154 transitions. Word has length 39 [2021-10-16 01:59:58,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 01:59:58,580 INFO L470 AbstractCegarLoop]: Abstraction has 111 states and 154 transitions. [2021-10-16 01:59:58,581 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 01:59:58,581 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 154 transitions. [2021-10-16 01:59:58,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-10-16 01:59:58,583 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 01:59:58,583 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 01:59:58,583 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-16 01:59:58,583 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 01:59:58,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:59:58,584 INFO L82 PathProgramCache]: Analyzing trace with hash 740152126, now seen corresponding path program 1 times [2021-10-16 01:59:58,584 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 01:59:58,585 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515361521] [2021-10-16 01:59:58,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:59:58,585 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 01:59:58,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:59:58,664 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 01:59:58,664 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 01:59:58,665 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515361521] [2021-10-16 01:59:58,665 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515361521] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 01:59:58,665 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [390534621] [2021-10-16 01:59:58,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:59:58,666 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 01:59:58,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 01:59:58,668 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 01:59:58,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-16 01:59:58,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:59:58,771 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-16 01:59:58,781 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:59:59,226 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 01:59:59,227 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 01:59:59,457 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 01:59:59,458 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [390534621] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 01:59:59,459 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2021-10-16 01:59:59,459 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [4] total 9 [2021-10-16 01:59:59,459 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251164301] [2021-10-16 01:59:59,460 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-16 01:59:59,461 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 01:59:59,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-16 01:59:59,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-10-16 01:59:59,463 INFO L87 Difference]: Start difference. First operand 111 states and 154 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 01:59:59,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 01:59:59,757 INFO L93 Difference]: Finished difference Result 312 states and 467 transitions. [2021-10-16 01:59:59,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-16 01:59:59,759 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 01:59:59,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 01:59:59,763 INFO L225 Difference]: With dead ends: 312 [2021-10-16 01:59:59,763 INFO L226 Difference]: Without dead ends: 203 [2021-10-16 01:59:59,764 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 61.1ms TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-10-16 01:59:59,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2021-10-16 01:59:59,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 186. [2021-10-16 01:59:59,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 185 states have (on average 1.3783783783783783) internal successors, (255), 185 states have internal predecessors, (255), 0 states have call successors, (0), 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 01:59:59,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 255 transitions. [2021-10-16 01:59:59,791 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 255 transitions. Word has length 52 [2021-10-16 01:59:59,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 01:59:59,791 INFO L470 AbstractCegarLoop]: Abstraction has 186 states and 255 transitions. [2021-10-16 01:59:59,791 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 01:59:59,792 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 255 transitions. [2021-10-16 01:59:59,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-10-16 01:59:59,799 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 01:59:59,800 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] [2021-10-16 01:59:59,837 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-16 02:00:00,013 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:00:00,014 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:00:00,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:00:00,014 INFO L82 PathProgramCache]: Analyzing trace with hash 237499208, now seen corresponding path program 1 times [2021-10-16 02:00:00,014 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:00:00,015 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30260832] [2021-10-16 02:00:00,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:00:00,015 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:00:00,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:00:00,120 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 02:00:00,120 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:00:00,121 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30260832] [2021-10-16 02:00:00,121 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30260832] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 02:00:00,121 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:00:00,121 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-16 02:00:00,122 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907814879] [2021-10-16 02:00:00,122 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:00:00,122 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:00:00,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:00:00,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:00:00,125 INFO L87 Difference]: Start difference. First operand 186 states and 255 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:00:00,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:00:00,225 INFO L93 Difference]: Finished difference Result 390 states and 543 transitions. [2021-10-16 02:00:00,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:00:00,226 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2021-10-16 02:00:00,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:00:00,230 INFO L225 Difference]: With dead ends: 390 [2021-10-16 02:00:00,230 INFO L226 Difference]: Without dead ends: 207 [2021-10-16 02:00:00,233 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:00:00,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2021-10-16 02:00:00,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 205. [2021-10-16 02:00:00,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 204 states have (on average 1.357843137254902) internal successors, (277), 204 states have internal predecessors, (277), 0 states have call successors, (0), 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 02:00:00,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 277 transitions. [2021-10-16 02:00:00,244 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 277 transitions. Word has length 67 [2021-10-16 02:00:00,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:00:00,244 INFO L470 AbstractCegarLoop]: Abstraction has 205 states and 277 transitions. [2021-10-16 02:00:00,245 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:00:00,245 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 277 transitions. [2021-10-16 02:00:00,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-10-16 02:00:00,246 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:00:00,246 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] [2021-10-16 02:00:00,246 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-16 02:00:00,247 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:00:00,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:00:00,247 INFO L82 PathProgramCache]: Analyzing trace with hash -1009770334, now seen corresponding path program 1 times [2021-10-16 02:00:00,247 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:00:00,248 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651983117] [2021-10-16 02:00:00,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:00:00,248 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:00:00,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:00:00,358 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 02:00:00,361 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:00:00,361 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651983117] [2021-10-16 02:00:00,362 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651983117] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 02:00:00,362 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2063456899] [2021-10-16 02:00:00,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:00:00,363 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:00:00,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:00:00,364 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 02:00:00,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-16 02:00:00,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:00:00,501 INFO L263 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-16 02:00:00,505 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:00:00,746 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 02:00:00,746 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:00:01,278 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-10-16 02:00:01,278 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2063456899] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:00:01,279 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1965996865] [2021-10-16 02:00:01,301 INFO L159 IcfgInterpreter]: Started Sifa with 36 locations of interest [2021-10-16 02:00:01,302 INFO L166 IcfgInterpreter]: Building call graph [2021-10-16 02:00:01,306 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-16 02:00:01,312 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-16 02:00:01,312 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-16 02:00:01,467 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:00:01,469 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:00:01,471 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:00:01,472 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-16 02:00:01,473 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:00:01,474 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:00:01,474 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-16 02:00:01,481 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 231 [2021-10-16 02:00:01,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:00:01,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:00:01,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:00:01,600 INFO L354 Elim1Store]: treesize reduction 68, result has 13.9 percent of original size [2021-10-16 02:00:01,601 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 43 treesize of output 42 [2021-10-16 02:00:01,605 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:00:01,608 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-10-16 02:00:01,610 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:00:01,611 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-10-16 02:00:01,611 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-16 02:00:01,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:00:01,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:00:01,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:00:01,702 INFO L354 Elim1Store]: treesize reduction 68, result has 13.9 percent of original size [2021-10-16 02:00:01,702 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 43 treesize of output 42 [2021-10-16 02:00:01,703 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:00:01,706 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-10-16 02:00:01,707 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:00:01,708 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-10-16 02:00:01,709 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-16 02:00:01,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:00:01,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:00:01,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:00:01,782 INFO L354 Elim1Store]: treesize reduction 68, result has 13.9 percent of original size [2021-10-16 02:00:01,782 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 43 treesize of output 42 [2021-10-16 02:00:01,783 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:00:01,787 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-10-16 02:00:01,790 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:00:01,793 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-10-16 02:00:01,794 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-10-16 02:00:01,796 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:00:01,854 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:00:01,891 INFO L180 QuantifierPusher]: treesize reduction 18, result has 96.9 percent of original size [2021-10-16 02:00:01,916 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 558 [2021-10-16 02:00:01,917 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2021-10-16 02:00:01,938 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 1 variables, input treesize:624, output treesize:558 [2021-10-16 02:00:01,978 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-16 02:00:02,161 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:00:02,162 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: No corresponding IProgramVar for |v_#length_21| 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 02:00:02,165 INFO L168 Benchmark]: Toolchain (without parser) took 6222.03 ms. Allocated memory was 96.5 MB in the beginning and 148.9 MB in the end (delta: 52.4 MB). Free memory was 54.4 MB in the beginning and 118.6 MB in the end (delta: -64.3 MB). Peak memory consumption was 58.2 MB. Max. memory is 16.1 GB. [2021-10-16 02:00:02,165 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 96.5 MB. Free memory was 71.2 MB in the beginning and 71.2 MB in the end (delta: 44.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:00:02,166 INFO L168 Benchmark]: CACSL2BoogieTranslator took 350.07 ms. Allocated memory is still 96.5 MB. Free memory was 54.2 MB in the beginning and 67.4 MB in the end (delta: -13.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-16 02:00:02,166 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.36 ms. Allocated memory is still 96.5 MB. Free memory was 67.4 MB in the beginning and 65.0 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:00:02,167 INFO L168 Benchmark]: Boogie Preprocessor took 49.76 ms. Allocated memory is still 96.5 MB. Free memory was 65.0 MB in the beginning and 63.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:00:02,168 INFO L168 Benchmark]: RCFGBuilder took 1097.12 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 62.9 MB in the beginning and 79.6 MB in the end (delta: -16.6 MB). Peak memory consumption was 38.7 MB. Max. memory is 16.1 GB. [2021-10-16 02:00:02,168 INFO L168 Benchmark]: TraceAbstraction took 4654.68 ms. Allocated memory was 117.4 MB in the beginning and 148.9 MB in the end (delta: 31.5 MB). Free memory was 78.9 MB in the beginning and 118.6 MB in the end (delta: -39.7 MB). Peak memory consumption was 61.2 MB. Max. memory is 16.1 GB. [2021-10-16 02:00:02,171 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 96.5 MB. Free memory was 71.2 MB in the beginning and 71.2 MB in the end (delta: 44.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 350.07 ms. Allocated memory is still 96.5 MB. Free memory was 54.2 MB in the beginning and 67.4 MB in the end (delta: -13.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 62.36 ms. Allocated memory is still 96.5 MB. Free memory was 67.4 MB in the beginning and 65.0 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 49.76 ms. Allocated memory is still 96.5 MB. Free memory was 65.0 MB in the beginning and 63.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1097.12 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 62.9 MB in the beginning and 79.6 MB in the end (delta: -16.6 MB). Peak memory consumption was 38.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4654.68 ms. Allocated memory was 117.4 MB in the beginning and 148.9 MB in the end (delta: 31.5 MB). Free memory was 78.9 MB in the beginning and 118.6 MB in the end (delta: -39.7 MB). Peak memory consumption was 61.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: No corresponding IProgramVar for |v_#length_21| de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: No corresponding IProgramVar for |v_#length_21|: 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 02:00:02,216 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/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 02:00:04,651 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 02:00:04,654 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 02:00:04,709 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 02:00:04,709 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 02:00:04,711 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 02:00:04,712 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 02:00:04,715 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 02:00:04,717 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 02:00:04,718 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 02:00:04,720 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 02:00:04,721 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 02:00:04,722 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 02:00:04,723 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 02:00:04,725 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 02:00:04,726 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 02:00:04,727 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 02:00:04,729 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 02:00:04,731 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 02:00:04,737 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 02:00:04,739 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 02:00:04,747 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 02:00:04,748 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 02:00:04,749 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 02:00:04,753 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 02:00:04,753 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 02:00:04,754 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 02:00:04,755 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 02:00:04,756 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 02:00:04,757 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 02:00:04,763 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 02:00:04,765 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 02:00:04,766 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 02:00:04,766 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 02:00:04,768 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 02:00:04,768 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 02:00:04,769 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 02:00:04,769 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 02:00:04,770 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 02:00:04,771 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 02:00:04,772 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 02:00:04,774 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-16 02:00:04,824 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 02:00:04,826 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 02:00:04,828 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 02:00:04,828 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 02:00:04,829 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 02:00:04,829 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 02:00:04,829 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 02:00:04,829 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 02:00:04,830 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 02:00:04,831 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 02:00:04,832 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 02:00:04,832 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 02:00:04,833 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 02:00:04,833 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 02:00:04,833 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 02:00:04,833 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 02:00:04,833 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 02:00:04,834 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-16 02:00:04,834 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-16 02:00:04,834 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 02:00:04,834 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 02:00:04,835 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 02:00:04,835 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 02:00:04,835 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 02:00:04,835 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-16 02:00:04,835 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 02:00:04,836 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:00:04,836 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 02:00:04,836 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 02:00:04,836 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 02:00:04,837 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-16 02:00:04,837 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-16 02:00:04,837 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 02:00:04,837 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 02:00:04,838 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 02:00:04,838 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_0bc22cbb-e716-47e1-99f9-539388b413f6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7f1e0945ef9e6e0ada02f655611b7763d861fe47 [2021-10-16 02:00:05,235 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 02:00:05,259 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 02:00:05,262 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 02:00:05,263 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 02:00:05,264 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 02:00:05,267 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/openssl-simplified/s3_clnt_3.cil-1.c [2021-10-16 02:00:05,369 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/data/666fb9a60/28fdca76616d4c04a3c3efbb3ca228aa/FLAG7021600cc [2021-10-16 02:00:05,994 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 02:00:05,995 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/sv-benchmarks/c/openssl-simplified/s3_clnt_3.cil-1.c [2021-10-16 02:00:06,012 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/data/666fb9a60/28fdca76616d4c04a3c3efbb3ca228aa/FLAG7021600cc [2021-10-16 02:00:06,278 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/data/666fb9a60/28fdca76616d4c04a3c3efbb3ca228aa [2021-10-16 02:00:06,281 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 02:00:06,282 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 02:00:06,284 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 02:00:06,284 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 02:00:06,287 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 02:00:06,288 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:00:06" (1/1) ... [2021-10-16 02:00:06,289 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52c70974 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:00:06, skipping insertion in model container [2021-10-16 02:00:06,290 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:00:06" (1/1) ... [2021-10-16 02:00:06,297 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 02:00:06,331 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:00:06,513 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_0bc22cbb-e716-47e1-99f9-539388b413f6/sv-benchmarks/c/openssl-simplified/s3_clnt_3.cil-1.c[36888,36901] [2021-10-16 02:00:06,519 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:00:06,531 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 02:00:06,624 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_0bc22cbb-e716-47e1-99f9-539388b413f6/sv-benchmarks/c/openssl-simplified/s3_clnt_3.cil-1.c[36888,36901] [2021-10-16 02:00:06,627 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:00:06,641 INFO L208 MainTranslator]: Completed translation [2021-10-16 02:00:06,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:00:06 WrapperNode [2021-10-16 02:00:06,642 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 02:00:06,643 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 02:00:06,644 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 02:00:06,644 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 02:00:06,650 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:00:06" (1/1) ... [2021-10-16 02:00:06,661 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:00:06" (1/1) ... [2021-10-16 02:00:06,691 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 02:00:06,692 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 02:00:06,693 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 02:00:06,693 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 02:00:06,701 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:00:06" (1/1) ... [2021-10-16 02:00:06,701 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:00:06" (1/1) ... [2021-10-16 02:00:06,706 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:00:06" (1/1) ... [2021-10-16 02:00:06,707 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:00:06" (1/1) ... [2021-10-16 02:00:06,716 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:00:06" (1/1) ... [2021-10-16 02:00:06,724 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:00:06" (1/1) ... [2021-10-16 02:00:06,726 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:00:06" (1/1) ... [2021-10-16 02:00:06,731 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 02:00:06,732 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 02:00:06,733 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 02:00:06,733 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 02:00:06,734 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:00:06" (1/1) ... [2021-10-16 02:00:06,741 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:00:06,753 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:00:06,774 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 02:00:06,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 02:00:06,842 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 02:00:06,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 02:00:06,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-16 02:00:06,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 02:00:06,982 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-16 02:00:07,382 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2021-10-16 02:00:07,382 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2021-10-16 02:00:07,391 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 02:00:07,391 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-16 02:00:07,393 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:00:07 BoogieIcfgContainer [2021-10-16 02:00:07,394 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 02:00:07,396 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 02:00:07,396 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 02:00:07,399 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 02:00:07,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:00:06" (1/3) ... [2021-10-16 02:00:07,400 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fb49c86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:00:07, skipping insertion in model container [2021-10-16 02:00:07,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:00:06" (2/3) ... [2021-10-16 02:00:07,401 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fb49c86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:00:07, skipping insertion in model container [2021-10-16 02:00:07,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:00:07" (3/3) ... [2021-10-16 02:00:07,402 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt_3.cil-1.c [2021-10-16 02:00:07,408 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 02:00:07,408 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-16 02:00:07,457 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 02:00:07,463 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 02:00:07,463 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-16 02:00:07,489 INFO L276 IsEmpty]: Start isEmpty. Operand has 124 states, 122 states have (on average 1.7377049180327868) internal successors, (212), 123 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:00:07,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-16 02:00:07,504 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:00:07,505 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:00:07,506 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:00:07,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:00:07,518 INFO L82 PathProgramCache]: Analyzing trace with hash -1457697026, now seen corresponding path program 1 times [2021-10-16 02:00:07,528 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:00:07,529 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1828681455] [2021-10-16 02:00:07,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:00:07,530 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:00:07,531 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:00:07,534 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:00:07,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-16 02:00:07,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:00:07,637 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-16 02:00:07,643 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:00:07,786 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 02:00:07,787 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:00:07,872 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 02:00:07,873 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:00:07,874 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1828681455] [2021-10-16 02:00:07,874 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1828681455] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:00:07,875 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:00:07,875 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-16 02:00:07,877 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820953751] [2021-10-16 02:00:07,881 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:00:07,882 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:00:07,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:00:07,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:00:07,898 INFO L87 Difference]: Start difference. First operand has 124 states, 122 states have (on average 1.7377049180327868) internal successors, (212), 123 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) 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 02:00:08,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:00:08,094 INFO L93 Difference]: Finished difference Result 244 states and 419 transitions. [2021-10-16 02:00:08,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:00:08,096 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 02:00:08,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:00:08,106 INFO L225 Difference]: With dead ends: 244 [2021-10-16 02:00:08,107 INFO L226 Difference]: Without dead ends: 112 [2021-10-16 02:00:08,110 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:00:08,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2021-10-16 02:00:08,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2021-10-16 02:00:08,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 111 states have (on average 1.5225225225225225) internal successors, (169), 111 states have internal predecessors, (169), 0 states have call successors, (0), 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 02:00:08,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 169 transitions. [2021-10-16 02:00:08,152 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 169 transitions. Word has length 24 [2021-10-16 02:00:08,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:00:08,153 INFO L470 AbstractCegarLoop]: Abstraction has 112 states and 169 transitions. [2021-10-16 02:00:08,153 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 02:00:08,154 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 169 transitions. [2021-10-16 02:00:08,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-10-16 02:00:08,155 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:00:08,156 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] [2021-10-16 02:00:08,171 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-16 02:00:08,367 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:00:08,367 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:00:08,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:00:08,368 INFO L82 PathProgramCache]: Analyzing trace with hash -611475394, now seen corresponding path program 1 times [2021-10-16 02:00:08,369 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:00:08,369 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2056332609] [2021-10-16 02:00:08,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:00:08,371 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:00:08,372 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:00:08,373 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:00:08,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-16 02:00:08,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:00:08,463 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:00:08,475 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:00:08,612 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 02:00:08,613 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:00:08,725 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 02:00:08,726 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:00:08,727 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2056332609] [2021-10-16 02:00:08,727 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2056332609] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:00:08,727 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:00:08,727 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-16 02:00:08,728 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893221556] [2021-10-16 02:00:08,729 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:00:08,729 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:00:08,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:00:08,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:00:08,733 INFO L87 Difference]: Start difference. First operand 112 states and 169 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 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 02:00:08,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:00:08,905 INFO L93 Difference]: Finished difference Result 232 states and 354 transitions. [2021-10-16 02:00:08,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:00:08,906 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 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 36 [2021-10-16 02:00:08,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:00:08,911 INFO L225 Difference]: With dead ends: 232 [2021-10-16 02:00:08,912 INFO L226 Difference]: Without dead ends: 130 [2021-10-16 02:00:08,914 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 69 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 02:00:08,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2021-10-16 02:00:08,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 127. [2021-10-16 02:00:08,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 126 states have (on average 1.5) internal successors, (189), 126 states have internal predecessors, (189), 0 states have call successors, (0), 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 02:00:08,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 189 transitions. [2021-10-16 02:00:08,946 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 189 transitions. Word has length 36 [2021-10-16 02:00:08,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:00:08,947 INFO L470 AbstractCegarLoop]: Abstraction has 127 states and 189 transitions. [2021-10-16 02:00:08,947 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 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 02:00:08,948 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 189 transitions. [2021-10-16 02:00:08,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-10-16 02:00:08,951 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:00:08,951 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] [2021-10-16 02:00:08,967 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-16 02:00:09,166 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:00:09,167 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:00:09,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:00:09,167 INFO L82 PathProgramCache]: Analyzing trace with hash -114868729, now seen corresponding path program 1 times [2021-10-16 02:00:09,168 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:00:09,168 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [255601516] [2021-10-16 02:00:09,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:00:09,169 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:00:09,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:00:09,170 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:00:09,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-16 02:00:09,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:00:09,270 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:00:09,278 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:00:09,410 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 02:00:09,411 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:00:09,524 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 02:00:09,524 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:00:09,525 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [255601516] [2021-10-16 02:00:09,525 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [255601516] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:00:09,525 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:00:09,525 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-16 02:00:09,526 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032673331] [2021-10-16 02:00:09,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:00:09,526 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:00:09,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:00:09,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:00:09,528 INFO L87 Difference]: Start difference. First operand 127 states and 189 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:00:09,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:00:09,677 INFO L93 Difference]: Finished difference Result 266 states and 402 transitions. [2021-10-16 02:00:09,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:00:09,678 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2021-10-16 02:00:09,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:00:09,679 INFO L225 Difference]: With dead ends: 266 [2021-10-16 02:00:09,679 INFO L226 Difference]: Without dead ends: 149 [2021-10-16 02:00:09,680 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:00:09,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2021-10-16 02:00:09,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 144. [2021-10-16 02:00:09,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 143 states have (on average 1.4755244755244756) internal successors, (211), 143 states have internal predecessors, (211), 0 states have call successors, (0), 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 02:00:09,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 211 transitions. [2021-10-16 02:00:09,689 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 211 transitions. Word has length 50 [2021-10-16 02:00:09,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:00:09,690 INFO L470 AbstractCegarLoop]: Abstraction has 144 states and 211 transitions. [2021-10-16 02:00:09,690 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:00:09,690 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 211 transitions. [2021-10-16 02:00:09,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-10-16 02:00:09,692 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:00:09,692 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] [2021-10-16 02:00:09,705 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-10-16 02:00:09,903 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:00:09,904 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:00:09,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:00:09,905 INFO L82 PathProgramCache]: Analyzing trace with hash -682645784, now seen corresponding path program 1 times [2021-10-16 02:00:09,905 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:00:09,905 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [829869041] [2021-10-16 02:00:09,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:00:09,906 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:00:09,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:00:09,907 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:00:09,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-16 02:00:10,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:00:10,052 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:00:10,055 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:00:10,266 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 02:00:10,266 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:00:10,442 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 02:00:10,442 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:00:10,442 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [829869041] [2021-10-16 02:00:10,442 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [829869041] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:00:10,443 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:00:10,443 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-16 02:00:10,443 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676024103] [2021-10-16 02:00:10,444 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 02:00:10,444 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:00:10,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 02:00:10,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:00:10,445 INFO L87 Difference]: Start difference. First operand 144 states and 211 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 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 02:00:10,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:00:10,697 INFO L93 Difference]: Finished difference Result 349 states and 534 transitions. [2021-10-16 02:00:10,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 02:00:10,697 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 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 67 [2021-10-16 02:00:10,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:00:10,699 INFO L225 Difference]: With dead ends: 349 [2021-10-16 02:00:10,700 INFO L226 Difference]: Without dead ends: 215 [2021-10-16 02:00:10,701 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 130 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 02:00:10,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2021-10-16 02:00:10,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 207. [2021-10-16 02:00:10,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 206 states have (on average 1.441747572815534) internal successors, (297), 206 states have internal predecessors, (297), 0 states have call successors, (0), 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 02:00:10,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 297 transitions. [2021-10-16 02:00:10,718 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 297 transitions. Word has length 67 [2021-10-16 02:00:10,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:00:10,719 INFO L470 AbstractCegarLoop]: Abstraction has 207 states and 297 transitions. [2021-10-16 02:00:10,721 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 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 02:00:10,721 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 297 transitions. [2021-10-16 02:00:10,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-10-16 02:00:10,727 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:00:10,727 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 02:00:10,757 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-16 02:00:10,939 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:00:10,939 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:00:10,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:00:10,940 INFO L82 PathProgramCache]: Analyzing trace with hash 174177511, now seen corresponding path program 1 times [2021-10-16 02:00:10,940 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:00:10,940 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1284582977] [2021-10-16 02:00:10,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:00:10,940 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:00:10,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:00:10,941 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:00:10,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-16 02:00:11,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:00:11,116 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:00:11,118 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:00:11,323 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 02:00:11,323 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:00:11,460 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 02:00:11,460 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:00:11,461 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1284582977] [2021-10-16 02:00:11,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1284582977] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:00:11,465 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:00:11,465 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-16 02:00:11,465 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612236408] [2021-10-16 02:00:11,466 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:00:11,467 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:00:11,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:00:11,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:00:11,468 INFO L87 Difference]: Start difference. First operand 207 states and 297 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 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 02:00:11,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:00:11,596 INFO L93 Difference]: Finished difference Result 427 states and 620 transitions. [2021-10-16 02:00:11,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:00:11,597 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 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 02:00:11,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:00:11,599 INFO L225 Difference]: With dead ends: 427 [2021-10-16 02:00:11,600 INFO L226 Difference]: Without dead ends: 230 [2021-10-16 02:00:11,603 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 133 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 02:00:11,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2021-10-16 02:00:11,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 226. [2021-10-16 02:00:11,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 225 states have (on average 1.4266666666666667) internal successors, (321), 225 states have internal predecessors, (321), 0 states have call successors, (0), 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 02:00:11,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 321 transitions. [2021-10-16 02:00:11,628 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 321 transitions. Word has length 68 [2021-10-16 02:00:11,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:00:11,629 INFO L470 AbstractCegarLoop]: Abstraction has 226 states and 321 transitions. [2021-10-16 02:00:11,629 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 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 02:00:11,630 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 321 transitions. [2021-10-16 02:00:11,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-10-16 02:00:11,636 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:00:11,636 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] [2021-10-16 02:00:11,658 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-16 02:00:11,848 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:00:11,848 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:00:11,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:00:11,848 INFO L82 PathProgramCache]: Analyzing trace with hash 985681361, now seen corresponding path program 1 times [2021-10-16 02:00:11,849 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:00:11,849 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1103338681] [2021-10-16 02:00:11,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:00:11,850 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:00:11,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:00:11,851 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:00:11,876 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-16 02:00:12,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:00:12,025 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:00:12,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:00:12,215 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 02:00:12,215 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:00:12,361 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 02:00:12,363 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:00:12,364 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1103338681] [2021-10-16 02:00:12,364 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1103338681] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:00:12,364 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:00:12,366 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-16 02:00:12,366 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778141301] [2021-10-16 02:00:12,367 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:00:12,367 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:00:12,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:00:12,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:00:12,369 INFO L87 Difference]: Start difference. First operand 226 states and 321 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:00:12,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:00:12,492 INFO L93 Difference]: Finished difference Result 466 states and 670 transitions. [2021-10-16 02:00:12,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:00:12,492 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2021-10-16 02:00:12,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:00:12,498 INFO L225 Difference]: With dead ends: 466 [2021-10-16 02:00:12,498 INFO L226 Difference]: Without dead ends: 250 [2021-10-16 02:00:12,498 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 165 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 02:00:12,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2021-10-16 02:00:12,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 247. [2021-10-16 02:00:12,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 246 states have (on average 1.410569105691057) internal successors, (347), 246 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:00:12,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 347 transitions. [2021-10-16 02:00:12,519 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 347 transitions. Word has length 84 [2021-10-16 02:00:12,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:00:12,520 INFO L470 AbstractCegarLoop]: Abstraction has 247 states and 347 transitions. [2021-10-16 02:00:12,521 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:00:12,521 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 347 transitions. [2021-10-16 02:00:12,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-10-16 02:00:12,524 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:00:12,524 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] [2021-10-16 02:00:12,538 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-16 02:00:12,729 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:00:12,730 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:00:12,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:00:12,730 INFO L82 PathProgramCache]: Analyzing trace with hash -1976749000, now seen corresponding path program 1 times [2021-10-16 02:00:12,730 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:00:12,730 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2083611245] [2021-10-16 02:00:12,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:00:12,731 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:00:12,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:00:12,732 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:00:12,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-16 02:00:12,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:00:12,930 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:00:12,932 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:00:13,169 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 02:00:13,170 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:00:13,397 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 02:00:13,397 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:00:13,397 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2083611245] [2021-10-16 02:00:13,397 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2083611245] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:00:13,398 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:00:13,398 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-16 02:00:13,398 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47368685] [2021-10-16 02:00:13,399 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 02:00:13,399 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:00:13,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 02:00:13,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:00:13,400 INFO L87 Difference]: Start difference. First operand 247 states and 347 transitions. Second operand has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 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 02:00:13,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:00:13,450 INFO L93 Difference]: Finished difference Result 743 states and 1042 transitions. [2021-10-16 02:00:13,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 02:00:13,457 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 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 103 [2021-10-16 02:00:13,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:00:13,461 INFO L225 Difference]: With dead ends: 743 [2021-10-16 02:00:13,461 INFO L226 Difference]: Without dead ends: 506 [2021-10-16 02:00:13,462 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 202 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 02:00:13,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2021-10-16 02:00:13,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 506. [2021-10-16 02:00:13,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 505 states have (on average 1.39009900990099) internal successors, (702), 505 states have internal predecessors, (702), 0 states have call successors, (0), 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 02:00:13,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 702 transitions. [2021-10-16 02:00:13,482 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 702 transitions. Word has length 103 [2021-10-16 02:00:13,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:00:13,483 INFO L470 AbstractCegarLoop]: Abstraction has 506 states and 702 transitions. [2021-10-16 02:00:13,483 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 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 02:00:13,483 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 702 transitions. [2021-10-16 02:00:13,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-10-16 02:00:13,487 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:00:13,488 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] [2021-10-16 02:00:13,503 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-16 02:00:13,703 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:00:13,703 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:00:13,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:00:13,703 INFO L82 PathProgramCache]: Analyzing trace with hash -236978706, now seen corresponding path program 1 times [2021-10-16 02:00:13,704 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:00:13,704 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [162628745] [2021-10-16 02:00:13,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:00:13,704 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:00:13,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:00:13,707 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:00:13,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-16 02:00:13,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:00:13,971 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:00:13,973 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:00:14,195 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 02:00:14,196 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:00:14,445 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 02:00:14,445 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:00:14,445 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [162628745] [2021-10-16 02:00:14,445 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [162628745] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:00:14,445 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:00:14,446 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-16 02:00:14,446 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248450670] [2021-10-16 02:00:14,446 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:00:14,447 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:00:14,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:00:14,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:00:14,448 INFO L87 Difference]: Start difference. First operand 506 states and 702 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:00:14,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:00:14,487 INFO L93 Difference]: Finished difference Result 1023 states and 1418 transitions. [2021-10-16 02:00:14,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:00:14,488 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2021-10-16 02:00:14,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:00:14,491 INFO L225 Difference]: With dead ends: 1023 [2021-10-16 02:00:14,491 INFO L226 Difference]: Without dead ends: 527 [2021-10-16 02:00:14,492 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:00:14,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2021-10-16 02:00:14,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 527. [2021-10-16 02:00:14,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 526 states have (on average 1.3859315589353611) internal successors, (729), 526 states have internal predecessors, (729), 0 states have call successors, (0), 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 02:00:14,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 729 transitions. [2021-10-16 02:00:14,510 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 729 transitions. Word has length 104 [2021-10-16 02:00:14,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:00:14,510 INFO L470 AbstractCegarLoop]: Abstraction has 527 states and 729 transitions. [2021-10-16 02:00:14,510 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:00:14,511 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 729 transitions. [2021-10-16 02:00:14,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-10-16 02:00:14,512 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:00:14,513 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] [2021-10-16 02:00:14,524 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-16 02:00:14,724 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:00:14,724 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:00:14,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:00:14,725 INFO L82 PathProgramCache]: Analyzing trace with hash 602054956, now seen corresponding path program 1 times [2021-10-16 02:00:14,725 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:00:14,726 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1579846732] [2021-10-16 02:00:14,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:00:14,726 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:00:14,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:00:14,727 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:00:14,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-16 02:00:15,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:00:15,051 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:00:15,052 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:00:15,282 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 02:00:15,282 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:00:15,598 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 02:00:15,598 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:00:15,598 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1579846732] [2021-10-16 02:00:15,598 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1579846732] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:00:15,598 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:00:15,599 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-16 02:00:15,599 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289039865] [2021-10-16 02:00:15,599 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:00:15,600 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:00:15,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:00:15,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:00:15,601 INFO L87 Difference]: Start difference. First operand 527 states and 729 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 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 02:00:15,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:00:15,634 INFO L93 Difference]: Finished difference Result 1070 states and 1478 transitions. [2021-10-16 02:00:15,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:00:15,635 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 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 104 [2021-10-16 02:00:15,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:00:15,638 INFO L225 Difference]: With dead ends: 1070 [2021-10-16 02:00:15,639 INFO L226 Difference]: Without dead ends: 553 [2021-10-16 02:00:15,640 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:00:15,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2021-10-16 02:00:15,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2021-10-16 02:00:15,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 552 states have (on average 1.3804347826086956) internal successors, (762), 552 states have internal predecessors, (762), 0 states have call successors, (0), 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 02:00:15,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 762 transitions. [2021-10-16 02:00:15,659 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 762 transitions. Word has length 104 [2021-10-16 02:00:15,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:00:15,659 INFO L470 AbstractCegarLoop]: Abstraction has 553 states and 762 transitions. [2021-10-16 02:00:15,659 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 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 02:00:15,659 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 762 transitions. [2021-10-16 02:00:15,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-10-16 02:00:15,661 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:00:15,661 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 02:00:15,677 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-16 02:00:15,873 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:00:15,873 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:00:15,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:00:15,874 INFO L82 PathProgramCache]: Analyzing trace with hash 1108389378, now seen corresponding path program 1 times [2021-10-16 02:00:15,874 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:00:15,874 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [367966147] [2021-10-16 02:00:15,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:00:15,874 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:00:15,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:00:15,875 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:00:15,876 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-16 02:00:16,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:00:16,192 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:00:16,193 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:00:16,439 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 02:00:16,439 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:00:16,678 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 02:00:16,678 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:00:16,678 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [367966147] [2021-10-16 02:00:16,678 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [367966147] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:00:16,678 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:00:16,678 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-16 02:00:16,679 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881120327] [2021-10-16 02:00:16,679 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 02:00:16,679 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:00:16,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 02:00:16,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:00:16,680 INFO L87 Difference]: Start difference. First operand 553 states and 762 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:00:16,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:00:16,754 INFO L93 Difference]: Finished difference Result 1477 states and 2065 transitions. [2021-10-16 02:00:16,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 02:00:16,755 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2021-10-16 02:00:16,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:00:16,761 INFO L225 Difference]: With dead ends: 1477 [2021-10-16 02:00:16,761 INFO L226 Difference]: Without dead ends: 960 [2021-10-16 02:00:16,762 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.5ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:00:16,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 960 states. [2021-10-16 02:00:16,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 960 to 960. [2021-10-16 02:00:16,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 960 states, 959 states have (on average 1.4014598540145986) internal successors, (1344), 959 states have internal predecessors, (1344), 0 states have call successors, (0), 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 02:00:16,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 960 states to 960 states and 1344 transitions. [2021-10-16 02:00:16,797 INFO L78 Accepts]: Start accepts. Automaton has 960 states and 1344 transitions. Word has length 105 [2021-10-16 02:00:16,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:00:16,798 INFO L470 AbstractCegarLoop]: Abstraction has 960 states and 1344 transitions. [2021-10-16 02:00:16,798 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:00:16,798 INFO L276 IsEmpty]: Start isEmpty. Operand 960 states and 1344 transitions. [2021-10-16 02:00:16,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-10-16 02:00:16,802 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:00:16,802 INFO L512 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:00:16,817 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-16 02:00:17,014 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:00:17,014 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:00:17,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:00:17,014 INFO L82 PathProgramCache]: Analyzing trace with hash -391134295, now seen corresponding path program 1 times [2021-10-16 02:00:17,015 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:00:17,015 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1582876922] [2021-10-16 02:00:17,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:00:17,015 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:00:17,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:00:17,016 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:00:17,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-10-16 02:00:17,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:00:17,393 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:00:17,395 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:00:17,705 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 259 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2021-10-16 02:00:17,705 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:00:18,005 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 259 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2021-10-16 02:00:18,006 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:00:18,008 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1582876922] [2021-10-16 02:00:18,008 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1582876922] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:00:18,008 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:00:18,008 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-16 02:00:18,008 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734682173] [2021-10-16 02:00:18,009 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 02:00:18,009 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:00:18,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 02:00:18,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:00:18,012 INFO L87 Difference]: Start difference. First operand 960 states and 1344 transitions. Second operand has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 0 states have call successors, (0), 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 02:00:18,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:00:18,244 INFO L93 Difference]: Finished difference Result 2007 states and 2847 transitions. [2021-10-16 02:00:18,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 02:00:18,245 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 0 states have call successors, (0), 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 159 [2021-10-16 02:00:18,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:00:18,252 INFO L225 Difference]: With dead ends: 2007 [2021-10-16 02:00:18,252 INFO L226 Difference]: Without dead ends: 1083 [2021-10-16 02:00:18,253 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 314 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 02:00:18,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1083 states. [2021-10-16 02:00:18,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1083 to 1052. [2021-10-16 02:00:18,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1052 states, 1051 states have (on average 1.3815413891531874) internal successors, (1452), 1051 states have internal predecessors, (1452), 0 states have call successors, (0), 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 02:00:18,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1052 states to 1052 states and 1452 transitions. [2021-10-16 02:00:18,297 INFO L78 Accepts]: Start accepts. Automaton has 1052 states and 1452 transitions. Word has length 159 [2021-10-16 02:00:18,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:00:18,297 INFO L470 AbstractCegarLoop]: Abstraction has 1052 states and 1452 transitions. [2021-10-16 02:00:18,298 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 0 states have call successors, (0), 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 02:00:18,298 INFO L276 IsEmpty]: Start isEmpty. Operand 1052 states and 1452 transitions. [2021-10-16 02:00:18,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2021-10-16 02:00:18,302 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:00:18,302 INFO L512 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 8, 8, 7, 6, 4, 4, 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] [2021-10-16 02:00:18,318 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-10-16 02:00:18,514 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:00:18,514 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:00:18,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:00:18,515 INFO L82 PathProgramCache]: Analyzing trace with hash -122347090, now seen corresponding path program 1 times [2021-10-16 02:00:18,515 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:00:18,515 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [74512259] [2021-10-16 02:00:18,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:00:18,515 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:00:18,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:00:18,517 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:00:18,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-10-16 02:00:18,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:00:18,978 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:00:18,981 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:00:19,353 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 327 proven. 0 refuted. 0 times theorem prover too weak. 179 trivial. 0 not checked. [2021-10-16 02:00:19,353 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:00:19,709 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 327 proven. 0 refuted. 0 times theorem prover too weak. 179 trivial. 0 not checked. [2021-10-16 02:00:19,709 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:00:19,709 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [74512259] [2021-10-16 02:00:19,709 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [74512259] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:00:19,709 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:00:19,710 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-16 02:00:19,710 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421165737] [2021-10-16 02:00:19,710 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 02:00:19,711 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:00:19,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 02:00:19,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:00:19,712 INFO L87 Difference]: Start difference. First operand 1052 states and 1452 transitions. Second operand has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:00:19,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:00:19,943 INFO L93 Difference]: Finished difference Result 2173 states and 3030 transitions. [2021-10-16 02:00:19,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 02:00:19,944 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 181 [2021-10-16 02:00:19,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:00:19,951 INFO L225 Difference]: With dead ends: 2173 [2021-10-16 02:00:19,951 INFO L226 Difference]: Without dead ends: 1157 [2021-10-16 02:00:19,953 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 358 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.5ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:00:19,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1157 states. [2021-10-16 02:00:19,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1157 to 1127. [2021-10-16 02:00:19,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1127 states, 1126 states have (on average 1.3658969804618117) internal successors, (1538), 1126 states have internal predecessors, (1538), 0 states have call successors, (0), 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 02:00:19,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1127 states to 1127 states and 1538 transitions. [2021-10-16 02:00:19,994 INFO L78 Accepts]: Start accepts. Automaton has 1127 states and 1538 transitions. Word has length 181 [2021-10-16 02:00:19,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:00:19,995 INFO L470 AbstractCegarLoop]: Abstraction has 1127 states and 1538 transitions. [2021-10-16 02:00:19,995 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:00:19,995 INFO L276 IsEmpty]: Start isEmpty. Operand 1127 states and 1538 transitions. [2021-10-16 02:00:20,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2021-10-16 02:00:20,013 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:00:20,013 INFO L512 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:00:20,029 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-10-16 02:00:20,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:00:20,214 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:00:20,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:00:20,214 INFO L82 PathProgramCache]: Analyzing trace with hash -1581924027, now seen corresponding path program 1 times [2021-10-16 02:00:20,215 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:00:20,215 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1369902464] [2021-10-16 02:00:20,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:00:20,215 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:00:20,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:00:20,216 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:00:20,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-10-16 02:00:20,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:00:20,736 INFO L263 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:00:20,739 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:00:21,221 INFO L134 CoverageAnalysis]: Checked inductivity of 740 backedges. 452 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2021-10-16 02:00:21,221 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:00:21,638 INFO L134 CoverageAnalysis]: Checked inductivity of 740 backedges. 452 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2021-10-16 02:00:21,638 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:00:21,639 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1369902464] [2021-10-16 02:00:21,639 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1369902464] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:00:21,639 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:00:21,639 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-16 02:00:21,640 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348692518] [2021-10-16 02:00:21,640 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 02:00:21,640 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:00:21,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 02:00:21,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:00:21,645 INFO L87 Difference]: Start difference. First operand 1127 states and 1538 transitions. Second operand has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 0 states have call successors, (0), 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 02:00:21,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:00:21,860 INFO L93 Difference]: Finished difference Result 2351 states and 3244 transitions. [2021-10-16 02:00:21,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 02:00:21,861 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 0 states have call successors, (0), 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 218 [2021-10-16 02:00:21,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:00:21,868 INFO L225 Difference]: With dead ends: 2351 [2021-10-16 02:00:21,868 INFO L226 Difference]: Without dead ends: 1260 [2021-10-16 02:00:21,870 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 434 GetRequests, 432 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.3ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:00:21,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1260 states. [2021-10-16 02:00:21,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1260 to 1239. [2021-10-16 02:00:21,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1239 states, 1238 states have (on average 1.345718901453958) internal successors, (1666), 1238 states have internal predecessors, (1666), 0 states have call successors, (0), 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 02:00:21,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1239 states to 1239 states and 1666 transitions. [2021-10-16 02:00:21,926 INFO L78 Accepts]: Start accepts. Automaton has 1239 states and 1666 transitions. Word has length 218 [2021-10-16 02:00:21,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:00:21,926 INFO L470 AbstractCegarLoop]: Abstraction has 1239 states and 1666 transitions. [2021-10-16 02:00:21,927 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 0 states have call successors, (0), 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 02:00:21,927 INFO L276 IsEmpty]: Start isEmpty. Operand 1239 states and 1666 transitions. [2021-10-16 02:00:21,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2021-10-16 02:00:21,931 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:00:21,932 INFO L512 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 10, 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, 1, 1, 1, 1, 1, 1] [2021-10-16 02:00:21,948 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-10-16 02:00:22,137 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:00:22,137 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:00:22,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:00:22,138 INFO L82 PathProgramCache]: Analyzing trace with hash -1770824890, now seen corresponding path program 1 times [2021-10-16 02:00:22,138 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:00:22,139 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1482050205] [2021-10-16 02:00:22,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:00:22,139 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:00:22,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:00:22,142 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:00:22,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-10-16 02:00:22,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:00:22,806 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:00:22,808 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:00:23,259 INFO L134 CoverageAnalysis]: Checked inductivity of 749 backedges. 461 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2021-10-16 02:00:23,259 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:00:23,693 INFO L134 CoverageAnalysis]: Checked inductivity of 749 backedges. 461 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2021-10-16 02:00:23,693 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:00:23,694 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1482050205] [2021-10-16 02:00:23,694 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1482050205] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:00:23,694 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:00:23,694 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-16 02:00:23,694 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029013572] [2021-10-16 02:00:23,696 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 02:00:23,696 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:00:23,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 02:00:23,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:00:23,697 INFO L87 Difference]: Start difference. First operand 1239 states and 1666 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 02:00:23,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:00:23,932 INFO L93 Difference]: Finished difference Result 2591 states and 3532 transitions. [2021-10-16 02:00:23,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 02:00:23,932 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 219 [2021-10-16 02:00:23,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:00:23,940 INFO L225 Difference]: With dead ends: 2591 [2021-10-16 02:00:23,940 INFO L226 Difference]: Without dead ends: 1388 [2021-10-16 02:00:23,943 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 436 GetRequests, 434 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.8ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:00:23,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1388 states. [2021-10-16 02:00:23,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1388 to 1363. [2021-10-16 02:00:23,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1363 states, 1362 states have (on average 1.3259911894273129) internal successors, (1806), 1362 states have internal predecessors, (1806), 0 states have call successors, (0), 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 02:00:23,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1363 states to 1363 states and 1806 transitions. [2021-10-16 02:00:23,990 INFO L78 Accepts]: Start accepts. Automaton has 1363 states and 1806 transitions. Word has length 219 [2021-10-16 02:00:23,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:00:23,991 INFO L470 AbstractCegarLoop]: Abstraction has 1363 states and 1806 transitions. [2021-10-16 02:00:23,991 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 02:00:23,991 INFO L276 IsEmpty]: Start isEmpty. Operand 1363 states and 1806 transitions. [2021-10-16 02:00:23,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2021-10-16 02:00:23,997 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:00:23,997 INFO L512 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 12, 12, 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] [2021-10-16 02:00:24,011 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-10-16 02:00:24,210 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:00:24,211 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:00:24,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:00:24,211 INFO L82 PathProgramCache]: Analyzing trace with hash -1837554521, now seen corresponding path program 1 times [2021-10-16 02:00:24,212 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:00:24,212 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [76152466] [2021-10-16 02:00:24,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:00:24,213 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:00:24,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:00:24,214 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:00:24,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-10-16 02:00:24,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:00:24,975 INFO L263 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:00:24,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:00:25,478 INFO L134 CoverageAnalysis]: Checked inductivity of 973 backedges. 552 proven. 0 refuted. 0 times theorem prover too weak. 421 trivial. 0 not checked. [2021-10-16 02:00:25,478 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:00:25,979 INFO L134 CoverageAnalysis]: Checked inductivity of 973 backedges. 552 proven. 0 refuted. 0 times theorem prover too weak. 421 trivial. 0 not checked. [2021-10-16 02:00:25,979 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:00:25,979 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [76152466] [2021-10-16 02:00:25,979 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [76152466] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:00:25,979 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:00:25,979 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-16 02:00:25,980 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929533447] [2021-10-16 02:00:25,980 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 02:00:25,981 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:00:25,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 02:00:25,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:00:25,982 INFO L87 Difference]: Start difference. First operand 1363 states and 1806 transitions. Second operand has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 0 states have call successors, (0), 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 02:00:26,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:00:26,210 INFO L93 Difference]: Finished difference Result 2846 states and 3825 transitions. [2021-10-16 02:00:26,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 02:00:26,211 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 0 states have call successors, (0), 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 260 [2021-10-16 02:00:26,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:00:26,219 INFO L225 Difference]: With dead ends: 2846 [2021-10-16 02:00:26,220 INFO L226 Difference]: Without dead ends: 1519 [2021-10-16 02:00:26,223 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 518 GetRequests, 516 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 02:00:26,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1519 states. [2021-10-16 02:00:26,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1519 to 1511. [2021-10-16 02:00:26,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1511 states, 1510 states have (on average 1.304635761589404) internal successors, (1970), 1510 states have internal predecessors, (1970), 0 states have call successors, (0), 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 02:00:26,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1511 states to 1511 states and 1970 transitions. [2021-10-16 02:00:26,274 INFO L78 Accepts]: Start accepts. Automaton has 1511 states and 1970 transitions. Word has length 260 [2021-10-16 02:00:26,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:00:26,275 INFO L470 AbstractCegarLoop]: Abstraction has 1511 states and 1970 transitions. [2021-10-16 02:00:26,275 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 0 states have call successors, (0), 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 02:00:26,275 INFO L276 IsEmpty]: Start isEmpty. Operand 1511 states and 1970 transitions. [2021-10-16 02:00:26,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2021-10-16 02:00:26,281 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:00:26,281 INFO L512 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 12, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:00:26,304 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-10-16 02:00:26,500 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:00:26,501 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:00:26,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:00:26,501 INFO L82 PathProgramCache]: Analyzing trace with hash 436060871, now seen corresponding path program 1 times [2021-10-16 02:00:26,501 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:00:26,501 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [312169510] [2021-10-16 02:00:26,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:00:26,502 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:00:26,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:00:26,502 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:00:26,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-10-16 02:00:27,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:00:27,316 INFO L263 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:00:27,319 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:00:27,842 INFO L134 CoverageAnalysis]: Checked inductivity of 984 backedges. 626 proven. 0 refuted. 0 times theorem prover too weak. 358 trivial. 0 not checked. [2021-10-16 02:00:27,842 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:00:28,309 INFO L134 CoverageAnalysis]: Checked inductivity of 984 backedges. 626 proven. 0 refuted. 0 times theorem prover too weak. 358 trivial. 0 not checked. [2021-10-16 02:00:28,309 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:00:28,309 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [312169510] [2021-10-16 02:00:28,309 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [312169510] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:00:28,309 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:00:28,309 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-16 02:00:28,313 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529815332] [2021-10-16 02:00:28,314 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 02:00:28,314 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:00:28,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 02:00:28,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:00:28,315 INFO L87 Difference]: Start difference. First operand 1511 states and 1970 transitions. Second operand has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 0 states have call successors, (0), 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 02:00:28,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:00:28,423 INFO L93 Difference]: Finished difference Result 5804 states and 7587 transitions. [2021-10-16 02:00:28,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 02:00:28,424 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 0 states have call successors, (0), 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 260 [2021-10-16 02:00:28,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:00:28,447 INFO L225 Difference]: With dead ends: 5804 [2021-10-16 02:00:28,447 INFO L226 Difference]: Without dead ends: 4329 [2021-10-16 02:00:28,450 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 518 GetRequests, 516 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.5ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:00:28,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4329 states. [2021-10-16 02:00:28,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4329 to 4325. [2021-10-16 02:00:28,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4325 states, 4324 states have (on average 1.3066604995374653) internal successors, (5650), 4324 states have internal predecessors, (5650), 0 states have call successors, (0), 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 02:00:28,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4325 states to 4325 states and 5650 transitions. [2021-10-16 02:00:28,604 INFO L78 Accepts]: Start accepts. Automaton has 4325 states and 5650 transitions. Word has length 260 [2021-10-16 02:00:28,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:00:28,604 INFO L470 AbstractCegarLoop]: Abstraction has 4325 states and 5650 transitions. [2021-10-16 02:00:28,605 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 0 states have call successors, (0), 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 02:00:28,605 INFO L276 IsEmpty]: Start isEmpty. Operand 4325 states and 5650 transitions. [2021-10-16 02:00:28,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2021-10-16 02:00:28,617 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:00:28,618 INFO L512 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 13, 13, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:00:28,632 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-10-16 02:00:28,832 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:00:28,832 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:00:28,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:00:28,832 INFO L82 PathProgramCache]: Analyzing trace with hash -1784456271, now seen corresponding path program 1 times [2021-10-16 02:00:28,833 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:00:28,833 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [953625349] [2021-10-16 02:00:28,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:00:28,833 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:00:28,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:00:28,834 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:00:28,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-10-16 02:00:29,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:00:29,732 INFO L263 TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:00:29,736 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:00:30,248 INFO L134 CoverageAnalysis]: Checked inductivity of 1175 backedges. 639 proven. 0 refuted. 0 times theorem prover too weak. 536 trivial. 0 not checked. [2021-10-16 02:00:30,248 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:00:30,743 INFO L134 CoverageAnalysis]: Checked inductivity of 1175 backedges. 639 proven. 0 refuted. 0 times theorem prover too weak. 536 trivial. 0 not checked. [2021-10-16 02:00:30,743 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:00:30,743 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [953625349] [2021-10-16 02:00:30,743 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [953625349] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:00:30,743 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:00:30,743 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-16 02:00:30,744 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51643925] [2021-10-16 02:00:30,744 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 02:00:30,745 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:00:30,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 02:00:30,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:00:30,746 INFO L87 Difference]: Start difference. First operand 4325 states and 5650 transitions. Second operand has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 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 02:00:31,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:00:31,047 INFO L93 Difference]: Finished difference Result 8866 states and 11621 transitions. [2021-10-16 02:00:31,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 02:00:31,047 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 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) Word has length 284 [2021-10-16 02:00:31,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:00:31,072 INFO L225 Difference]: With dead ends: 8866 [2021-10-16 02:00:31,072 INFO L226 Difference]: Without dead ends: 4577 [2021-10-16 02:00:31,077 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 566 GetRequests, 564 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 02:00:31,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4577 states. [2021-10-16 02:00:31,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4577 to 4457. [2021-10-16 02:00:31,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4457 states, 4456 states have (on average 1.299371633752244) internal successors, (5790), 4456 states have internal predecessors, (5790), 0 states have call successors, (0), 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 02:00:31,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4457 states to 4457 states and 5790 transitions. [2021-10-16 02:00:31,268 INFO L78 Accepts]: Start accepts. Automaton has 4457 states and 5790 transitions. Word has length 284 [2021-10-16 02:00:31,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:00:31,269 INFO L470 AbstractCegarLoop]: Abstraction has 4457 states and 5790 transitions. [2021-10-16 02:00:31,269 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 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 02:00:31,269 INFO L276 IsEmpty]: Start isEmpty. Operand 4457 states and 5790 transitions. [2021-10-16 02:00:31,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2021-10-16 02:00:31,281 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:00:31,281 INFO L512 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 13, 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, 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 02:00:31,296 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-10-16 02:00:31,497 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:00:31,497 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:00:31,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:00:31,498 INFO L82 PathProgramCache]: Analyzing trace with hash -1416435767, now seen corresponding path program 1 times [2021-10-16 02:00:31,498 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:00:31,499 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [123950821] [2021-10-16 02:00:31,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:00:31,499 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:00:31,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:00:31,500 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:00:31,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-10-16 02:00:32,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:00:32,569 INFO L263 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:00:32,593 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:00:33,156 INFO L134 CoverageAnalysis]: Checked inductivity of 1192 backedges. 652 proven. 0 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2021-10-16 02:00:33,157 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:00:33,706 INFO L134 CoverageAnalysis]: Checked inductivity of 1192 backedges. 652 proven. 0 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2021-10-16 02:00:33,707 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:00:33,707 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [123950821] [2021-10-16 02:00:33,707 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [123950821] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:00:33,707 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:00:33,707 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-16 02:00:33,711 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159773839] [2021-10-16 02:00:33,711 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 02:00:33,713 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:00:33,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 02:00:33,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:00:33,714 INFO L87 Difference]: Start difference. First operand 4457 states and 5790 transitions. Second operand has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 0 states have call successors, (0), 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 02:00:33,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:00:34,000 INFO L93 Difference]: Finished difference Result 9442 states and 12433 transitions. [2021-10-16 02:00:34,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 02:00:34,000 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 0 states have call successors, (0), 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 296 [2021-10-16 02:00:34,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:00:34,026 INFO L225 Difference]: With dead ends: 9442 [2021-10-16 02:00:34,026 INFO L226 Difference]: Without dead ends: 5021 [2021-10-16 02:00:34,032 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 590 GetRequests, 588 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 02:00:34,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5021 states. [2021-10-16 02:00:34,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5021 to 4901. [2021-10-16 02:00:34,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4901 states, 4900 states have (on average 1.2820408163265307) internal successors, (6282), 4900 states have internal predecessors, (6282), 0 states have call successors, (0), 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 02:00:34,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4901 states to 4901 states and 6282 transitions. [2021-10-16 02:00:34,212 INFO L78 Accepts]: Start accepts. Automaton has 4901 states and 6282 transitions. Word has length 296 [2021-10-16 02:00:34,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:00:34,213 INFO L470 AbstractCegarLoop]: Abstraction has 4901 states and 6282 transitions. [2021-10-16 02:00:34,213 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 0 states have call successors, (0), 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 02:00:34,213 INFO L276 IsEmpty]: Start isEmpty. Operand 4901 states and 6282 transitions. [2021-10-16 02:00:34,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2021-10-16 02:00:34,226 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:00:34,227 INFO L512 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 14, 14, 12, 12, 10, 10, 8, 8, 6, 6, 4, 4, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1] [2021-10-16 02:00:34,265 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-10-16 02:00:34,456 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:00:34,456 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:00:34,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:00:34,456 INFO L82 PathProgramCache]: Analyzing trace with hash 1359382836, now seen corresponding path program 1 times [2021-10-16 02:00:34,457 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:00:34,457 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [43618758] [2021-10-16 02:00:34,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:00:34,457 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:00:34,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:00:34,458 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:00:34,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-10-16 02:00:35,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:00:35,603 INFO L263 TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:00:35,606 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:00:36,262 INFO L134 CoverageAnalysis]: Checked inductivity of 1432 backedges. 743 proven. 0 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2021-10-16 02:00:36,262 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:00:36,812 INFO L134 CoverageAnalysis]: Checked inductivity of 1432 backedges. 743 proven. 0 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2021-10-16 02:00:36,812 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:00:36,812 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [43618758] [2021-10-16 02:00:36,812 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [43618758] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:00:36,812 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:00:36,813 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-16 02:00:36,813 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675874394] [2021-10-16 02:00:36,814 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 02:00:36,814 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:00:36,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 02:00:36,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:00:36,815 INFO L87 Difference]: Start difference. First operand 4901 states and 6282 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 02:00:37,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:00:37,113 INFO L93 Difference]: Finished difference Result 10366 states and 13477 transitions. [2021-10-16 02:00:37,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 02:00:37,114 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 333 [2021-10-16 02:00:37,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:00:37,153 INFO L225 Difference]: With dead ends: 10366 [2021-10-16 02:00:37,154 INFO L226 Difference]: Without dead ends: 5501 [2021-10-16 02:00:37,160 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 664 GetRequests, 662 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 02:00:37,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5501 states. [2021-10-16 02:00:37,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5501 to 5393. [2021-10-16 02:00:37,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5393 states, 5392 states have (on average 1.2652077151335313) internal successors, (6822), 5392 states have internal predecessors, (6822), 0 states have call successors, (0), 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 02:00:37,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5393 states to 5393 states and 6822 transitions. [2021-10-16 02:00:37,379 INFO L78 Accepts]: Start accepts. Automaton has 5393 states and 6822 transitions. Word has length 333 [2021-10-16 02:00:37,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:00:37,380 INFO L470 AbstractCegarLoop]: Abstraction has 5393 states and 6822 transitions. [2021-10-16 02:00:37,380 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 02:00:37,381 INFO L276 IsEmpty]: Start isEmpty. Operand 5393 states and 6822 transitions. [2021-10-16 02:00:37,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2021-10-16 02:00:37,395 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:00:37,395 INFO L512 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 14, 12, 12, 10, 10, 8, 8, 6, 6, 4, 4, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:00:37,411 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2021-10-16 02:00:37,611 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:00:37,611 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:00:37,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:00:37,611 INFO L82 PathProgramCache]: Analyzing trace with hash 610435703, now seen corresponding path program 1 times [2021-10-16 02:00:37,612 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:00:37,612 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [113829424] [2021-10-16 02:00:37,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:00:37,612 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:00:37,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:00:37,613 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:00:37,620 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-10-16 02:00:38,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:00:38,869 INFO L263 TraceCheckSpWp]: Trace formula consists of 412 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:00:38,872 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:00:39,554 INFO L134 CoverageAnalysis]: Checked inductivity of 1446 backedges. 887 proven. 0 refuted. 0 times theorem prover too weak. 559 trivial. 0 not checked. [2021-10-16 02:00:39,555 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:00:40,354 INFO L134 CoverageAnalysis]: Checked inductivity of 1446 backedges. 887 proven. 0 refuted. 0 times theorem prover too weak. 559 trivial. 0 not checked. [2021-10-16 02:00:40,354 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:00:40,355 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [113829424] [2021-10-16 02:00:40,355 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [113829424] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:00:40,355 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:00:40,355 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-16 02:00:40,355 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228473210] [2021-10-16 02:00:40,356 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:00:40,356 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:00:40,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:00:40,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:00:40,357 INFO L87 Difference]: Start difference. First operand 5393 states and 6822 transitions. Second operand has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 0 states have call successors, (0), 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 02:00:40,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:00:40,548 INFO L93 Difference]: Finished difference Result 15519 states and 19682 transitions. [2021-10-16 02:00:40,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:00:40,549 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 0 states have call successors, (0), 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 335 [2021-10-16 02:00:40,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:00:40,572 INFO L225 Difference]: With dead ends: 15519 [2021-10-16 02:00:40,572 INFO L226 Difference]: Without dead ends: 10162 [2021-10-16 02:00:40,579 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 668 GetRequests, 667 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 02:00:40,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10162 states. [2021-10-16 02:00:40,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10162 to 10160. [2021-10-16 02:00:40,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10160 states, 10159 states have (on average 1.2671522787675953) internal successors, (12873), 10159 states have internal predecessors, (12873), 0 states have call successors, (0), 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 02:00:40,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10160 states to 10160 states and 12873 transitions. [2021-10-16 02:00:40,911 INFO L78 Accepts]: Start accepts. Automaton has 10160 states and 12873 transitions. Word has length 335 [2021-10-16 02:00:40,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:00:40,911 INFO L470 AbstractCegarLoop]: Abstraction has 10160 states and 12873 transitions. [2021-10-16 02:00:40,912 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 0 states have call successors, (0), 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 02:00:40,912 INFO L276 IsEmpty]: Start isEmpty. Operand 10160 states and 12873 transitions. [2021-10-16 02:00:40,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2021-10-16 02:00:40,927 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:00:40,927 INFO L512 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 14, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:00:40,946 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2021-10-16 02:00:41,141 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:00:41,141 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:00:41,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:00:41,142 INFO L82 PathProgramCache]: Analyzing trace with hash 1564055932, now seen corresponding path program 1 times [2021-10-16 02:00:41,142 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:00:41,143 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1651660512] [2021-10-16 02:00:41,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:00:41,143 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:00:41,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:00:41,144 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:00:41,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-10-16 02:00:42,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:00:42,601 INFO L263 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-16 02:00:42,605 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:00:43,328 INFO L134 CoverageAnalysis]: Checked inductivity of 1415 backedges. 790 proven. 12 refuted. 0 times theorem prover too weak. 613 trivial. 0 not checked. [2021-10-16 02:00:43,328 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:00:43,971 INFO L134 CoverageAnalysis]: Checked inductivity of 1415 backedges. 790 proven. 12 refuted. 0 times theorem prover too weak. 613 trivial. 0 not checked. [2021-10-16 02:00:43,971 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:00:43,971 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1651660512] [2021-10-16 02:00:43,972 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1651660512] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:00:43,972 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1998041740] [2021-10-16 02:00:43,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:00:43,972 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-16 02:00:43,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/cvc4 [2021-10-16 02:00:43,974 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-16 02:00:43,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (23)] Waiting until timeout for monitored process [2021-10-16 02:00:46,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:00:46,138 INFO L263 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:00:46,144 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:00:47,092 INFO L134 CoverageAnalysis]: Checked inductivity of 1415 backedges. 728 proven. 0 refuted. 0 times theorem prover too weak. 687 trivial. 0 not checked. [2021-10-16 02:00:47,092 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:00:47,934 INFO L134 CoverageAnalysis]: Checked inductivity of 1415 backedges. 728 proven. 0 refuted. 0 times theorem prover too weak. 687 trivial. 0 not checked. [2021-10-16 02:00:47,935 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1998041740] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:00:47,935 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-10-16 02:00:47,935 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [4, 4] total 7 [2021-10-16 02:00:47,935 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286155902] [2021-10-16 02:00:47,936 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:00:47,936 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:00:47,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:00:47,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-16 02:00:47,936 INFO L87 Difference]: Start difference. First operand 10160 states and 12873 transitions. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 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 02:00:48,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:00:48,150 INFO L93 Difference]: Finished difference Result 22711 states and 28762 transitions. [2021-10-16 02:00:48,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:00:48,151 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 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) Word has length 343 [2021-10-16 02:00:48,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:00:48,209 INFO L225 Difference]: With dead ends: 22711 [2021-10-16 02:00:48,210 INFO L226 Difference]: Without dead ends: 12587 [2021-10-16 02:00:48,219 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1368 GetRequests, 1363 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 17.7ms TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-16 02:00:48,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12587 states. [2021-10-16 02:00:48,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12587 to 12587. [2021-10-16 02:00:48,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12587 states, 12586 states have (on average 1.264261878277451) internal successors, (15912), 12586 states have internal predecessors, (15912), 0 states have call successors, (0), 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 02:00:48,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12587 states to 12587 states and 15912 transitions. [2021-10-16 02:00:48,639 INFO L78 Accepts]: Start accepts. Automaton has 12587 states and 15912 transitions. Word has length 343 [2021-10-16 02:00:48,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:00:48,639 INFO L470 AbstractCegarLoop]: Abstraction has 12587 states and 15912 transitions. [2021-10-16 02:00:48,640 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 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 02:00:48,640 INFO L276 IsEmpty]: Start isEmpty. Operand 12587 states and 15912 transitions. [2021-10-16 02:00:48,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2021-10-16 02:00:48,655 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:00:48,656 INFO L512 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 14, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:00:48,676 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2021-10-16 02:00:48,877 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (23)] Forceful destruction successful, exit code 0 [2021-10-16 02:00:49,069 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt [2021-10-16 02:00:49,070 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:00:49,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:00:49,070 INFO L82 PathProgramCache]: Analyzing trace with hash -37610364, now seen corresponding path program 1 times [2021-10-16 02:00:49,071 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:00:49,071 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1452030579] [2021-10-16 02:00:49,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:00:49,071 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:00:49,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:00:49,072 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:00:49,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2021-10-16 02:00:50,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:00:50,750 INFO L263 TraceCheckSpWp]: Trace formula consists of 412 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-16 02:00:50,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:00:51,424 INFO L134 CoverageAnalysis]: Checked inductivity of 1417 backedges. 792 proven. 12 refuted. 0 times theorem prover too weak. 613 trivial. 0 not checked. [2021-10-16 02:00:51,424 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:00:51,986 INFO L134 CoverageAnalysis]: Checked inductivity of 1417 backedges. 792 proven. 12 refuted. 0 times theorem prover too weak. 613 trivial. 0 not checked. [2021-10-16 02:00:51,987 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:00:51,987 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1452030579] [2021-10-16 02:00:51,987 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1452030579] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:00:51,987 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1566534488] [2021-10-16 02:00:51,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:00:51,988 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-16 02:00:51,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/cvc4 [2021-10-16 02:00:51,988 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-16 02:00:51,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process [2021-10-16 02:00:54,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:00:54,572 INFO L263 TraceCheckSpWp]: Trace formula consists of 412 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-16 02:00:54,576 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:00:55,238 INFO L134 CoverageAnalysis]: Checked inductivity of 1417 backedges. 792 proven. 12 refuted. 0 times theorem prover too weak. 613 trivial. 0 not checked. [2021-10-16 02:00:55,238 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:00:55,819 INFO L134 CoverageAnalysis]: Checked inductivity of 1417 backedges. 792 proven. 12 refuted. 0 times theorem prover too weak. 613 trivial. 0 not checked. [2021-10-16 02:00:55,819 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1566534488] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:00:55,819 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1354081868] [2021-10-16 02:00:55,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:00:55,820 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:00:55,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:00:55,821 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 02:00:55,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2021-10-16 02:00:58,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:00:58,223 INFO L263 TraceCheckSpWp]: Trace formula consists of 412 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-16 02:00:58,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:00:58,842 INFO L134 CoverageAnalysis]: Checked inductivity of 1417 backedges. 792 proven. 12 refuted. 0 times theorem prover too weak. 613 trivial. 0 not checked. [2021-10-16 02:00:58,842 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:00:59,392 INFO L134 CoverageAnalysis]: Checked inductivity of 1417 backedges. 792 proven. 12 refuted. 0 times theorem prover too weak. 613 trivial. 0 not checked. [2021-10-16 02:00:59,392 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1354081868] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:00:59,392 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-16 02:00:59,393 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4, 4, 4, 4] total 6 [2021-10-16 02:00:59,393 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433123094] [2021-10-16 02:00:59,395 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-16 02:00:59,395 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:00:59,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-16 02:00:59,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-16 02:00:59,396 INFO L87 Difference]: Start difference. First operand 12587 states and 15912 transitions. Second operand has 6 states, 6 states have (on average 38.166666666666664) internal successors, (229), 6 states have internal predecessors, (229), 0 states have call successors, (0), 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 02:01:00,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:01:00,375 INFO L93 Difference]: Finished difference Result 32756 states and 41521 transitions. [2021-10-16 02:01:00,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-16 02:01:00,376 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 38.166666666666664) internal successors, (229), 6 states have internal predecessors, (229), 0 states have call successors, (0), 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 345 [2021-10-16 02:01:00,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:01:00,415 INFO L225 Difference]: With dead ends: 32756 [2021-10-16 02:01:00,416 INFO L226 Difference]: Without dead ends: 20226 [2021-10-16 02:01:00,431 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2072 GetRequests, 2064 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 34.2ms TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2021-10-16 02:01:00,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20226 states. [2021-10-16 02:01:00,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20226 to 14008. [2021-10-16 02:01:00,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14008 states, 14007 states have (on average 1.2745056043406868) internal successors, (17852), 14007 states have internal predecessors, (17852), 0 states have call successors, (0), 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 02:01:01,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14008 states to 14008 states and 17852 transitions. [2021-10-16 02:01:01,020 INFO L78 Accepts]: Start accepts. Automaton has 14008 states and 17852 transitions. Word has length 345 [2021-10-16 02:01:01,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:01:01,021 INFO L470 AbstractCegarLoop]: Abstraction has 14008 states and 17852 transitions. [2021-10-16 02:01:01,021 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 38.166666666666664) internal successors, (229), 6 states have internal predecessors, (229), 0 states have call successors, (0), 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 02:01:01,022 INFO L276 IsEmpty]: Start isEmpty. Operand 14008 states and 17852 transitions. [2021-10-16 02:01:01,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 413 [2021-10-16 02:01:01,054 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:01:01,055 INFO L512 BasicCegarLoop]: trace histogram [18, 18, 17, 17, 17, 17, 17, 17, 16, 14, 14, 12, 12, 10, 10, 8, 8, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:01:01,097 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2021-10-16 02:01:01,275 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (25)] Forceful destruction successful, exit code 0 [2021-10-16 02:01:01,481 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2021-10-16 02:01:01,669 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:01:01,670 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:01:01,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:01:01,670 INFO L82 PathProgramCache]: Analyzing trace with hash -416503357, now seen corresponding path program 1 times [2021-10-16 02:01:01,671 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:01:01,671 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [655124382] [2021-10-16 02:01:01,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:01:01,672 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:01:01,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:01:01,673 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:01:01,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2021-10-16 02:01:03,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:01:03,786 INFO L263 TraceCheckSpWp]: Trace formula consists of 487 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:01:03,791 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:01:04,568 INFO L134 CoverageAnalysis]: Checked inductivity of 2002 backedges. 917 proven. 0 refuted. 0 times theorem prover too weak. 1085 trivial. 0 not checked. [2021-10-16 02:01:04,568 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:01:05,216 INFO L134 CoverageAnalysis]: Checked inductivity of 2002 backedges. 917 proven. 0 refuted. 0 times theorem prover too weak. 1085 trivial. 0 not checked. [2021-10-16 02:01:05,216 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:01:05,216 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [655124382] [2021-10-16 02:01:05,216 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [655124382] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:01:05,216 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:01:05,217 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-16 02:01:05,217 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962185921] [2021-10-16 02:01:05,218 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 02:01:05,218 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:01:05,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 02:01:05,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:01:05,219 INFO L87 Difference]: Start difference. First operand 14008 states and 17852 transitions. Second operand has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 0 states have call successors, (0), 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 02:01:05,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:01:05,528 INFO L93 Difference]: Finished difference Result 25872 states and 33108 transitions. [2021-10-16 02:01:05,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 02:01:05,528 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 0 states have call successors, (0), 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 412 [2021-10-16 02:01:05,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:01:05,539 INFO L225 Difference]: With dead ends: 25872 [2021-10-16 02:01:05,539 INFO L226 Difference]: Without dead ends: 6485 [2021-10-16 02:01:05,553 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 822 GetRequests, 820 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.4ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:01:05,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6485 states. [2021-10-16 02:01:05,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6485 to 6172. [2021-10-16 02:01:05,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6172 states, 6171 states have (on average 1.2424242424242424) internal successors, (7667), 6171 states have internal predecessors, (7667), 0 states have call successors, (0), 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 02:01:05,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6172 states to 6172 states and 7667 transitions. [2021-10-16 02:01:05,778 INFO L78 Accepts]: Start accepts. Automaton has 6172 states and 7667 transitions. Word has length 412 [2021-10-16 02:01:05,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:01:05,778 INFO L470 AbstractCegarLoop]: Abstraction has 6172 states and 7667 transitions. [2021-10-16 02:01:05,779 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 0 states have call successors, (0), 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 02:01:05,779 INFO L276 IsEmpty]: Start isEmpty. Operand 6172 states and 7667 transitions. [2021-10-16 02:01:05,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 496 [2021-10-16 02:01:05,788 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:01:05,788 INFO L512 BasicCegarLoop]: trace histogram [19, 19, 18, 18, 18, 18, 18, 18, 18, 17, 17, 16, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:01:05,813 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2021-10-16 02:01:06,007 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:01:06,007 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:01:06,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:01:06,008 INFO L82 PathProgramCache]: Analyzing trace with hash 1320866639, now seen corresponding path program 1 times [2021-10-16 02:01:06,008 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:01:06,008 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1785588451] [2021-10-16 02:01:06,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:01:06,009 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:01:06,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:01:06,010 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:01:06,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2021-10-16 02:01:08,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:01:08,293 INFO L263 TraceCheckSpWp]: Trace formula consists of 570 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-16 02:01:08,299 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:01:09,197 INFO L134 CoverageAnalysis]: Checked inductivity of 2726 backedges. 1575 proven. 14 refuted. 0 times theorem prover too weak. 1137 trivial. 0 not checked. [2021-10-16 02:01:09,197 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:01:10,094 INFO L134 CoverageAnalysis]: Checked inductivity of 2726 backedges. 1575 proven. 14 refuted. 0 times theorem prover too weak. 1137 trivial. 0 not checked. [2021-10-16 02:01:10,095 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:01:10,095 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1785588451] [2021-10-16 02:01:10,095 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1785588451] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:01:10,095 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [375562355] [2021-10-16 02:01:10,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:01:10,095 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-16 02:01:10,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/cvc4 [2021-10-16 02:01:10,097 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-16 02:01:10,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (29)] Waiting until timeout for monitored process [2021-10-16 02:01:13,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:01:13,577 INFO L263 TraceCheckSpWp]: Trace formula consists of 570 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:01:13,585 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:01:14,514 INFO L134 CoverageAnalysis]: Checked inductivity of 2726 backedges. 1182 proven. 0 refuted. 0 times theorem prover too weak. 1544 trivial. 0 not checked. [2021-10-16 02:01:14,515 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:01:15,325 INFO L134 CoverageAnalysis]: Checked inductivity of 2726 backedges. 1182 proven. 0 refuted. 0 times theorem prover too weak. 1544 trivial. 0 not checked. [2021-10-16 02:01:15,326 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [375562355] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:01:15,326 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-10-16 02:01:15,327 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [4, 4] total 7 [2021-10-16 02:01:15,327 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554291172] [2021-10-16 02:01:15,327 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:01:15,328 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:01:15,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:01:15,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-16 02:01:15,329 INFO L87 Difference]: Start difference. First operand 6172 states and 7667 transitions. Second operand has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 0 states have call successors, (0), 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 02:01:15,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:01:15,436 INFO L93 Difference]: Finished difference Result 6176 states and 7670 transitions. [2021-10-16 02:01:15,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:01:15,436 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 0 states have call successors, (0), 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 495 [2021-10-16 02:01:15,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:01:15,445 INFO L225 Difference]: With dead ends: 6176 [2021-10-16 02:01:15,446 INFO L226 Difference]: Without dead ends: 6100 [2021-10-16 02:01:15,448 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1976 GetRequests, 1971 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 16.6ms TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-16 02:01:15,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6100 states. [2021-10-16 02:01:15,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6100 to 6098. [2021-10-16 02:01:15,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6098 states, 6097 states have (on average 1.2424143021157947) internal successors, (7575), 6097 states have internal predecessors, (7575), 0 states have call successors, (0), 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 02:01:15,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6098 states to 6098 states and 7575 transitions. [2021-10-16 02:01:15,613 INFO L78 Accepts]: Start accepts. Automaton has 6098 states and 7575 transitions. Word has length 495 [2021-10-16 02:01:15,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:01:15,614 INFO L470 AbstractCegarLoop]: Abstraction has 6098 states and 7575 transitions. [2021-10-16 02:01:15,615 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 0 states have call successors, (0), 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 02:01:15,615 INFO L276 IsEmpty]: Start isEmpty. Operand 6098 states and 7575 transitions. [2021-10-16 02:01:15,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 606 [2021-10-16 02:01:15,658 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:01:15,659 INFO L512 BasicCegarLoop]: trace histogram [21, 21, 20, 20, 20, 20, 20, 20, 20, 19, 19, 18, 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, 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] [2021-10-16 02:01:15,673 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (29)] Forceful destruction successful, exit code 0 [2021-10-16 02:01:15,872 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2021-10-16 02:01:16,059 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:01:16,059 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:01:16,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:01:16,060 INFO L82 PathProgramCache]: Analyzing trace with hash 1468480925, now seen corresponding path program 1 times [2021-10-16 02:01:16,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:01:16,060 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2017575725] [2021-10-16 02:01:16,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:01:16,061 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:01:16,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:01:16,062 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:01:16,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2021-10-16 02:01:18,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:01:18,713 INFO L263 TraceCheckSpWp]: Trace formula consists of 684 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-16 02:01:18,720 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:01:19,752 INFO L134 CoverageAnalysis]: Checked inductivity of 3942 backedges. 2057 proven. 14 refuted. 0 times theorem prover too weak. 1871 trivial. 0 not checked. [2021-10-16 02:01:19,753 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:01:20,884 INFO L134 CoverageAnalysis]: Checked inductivity of 3942 backedges. 2057 proven. 14 refuted. 0 times theorem prover too weak. 1871 trivial. 0 not checked. [2021-10-16 02:01:20,885 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:01:20,885 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2017575725] [2021-10-16 02:01:20,886 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2017575725] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:01:20,886 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [120157877] [2021-10-16 02:01:20,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:01:20,886 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-16 02:01:20,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/cvc4 [2021-10-16 02:01:20,889 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-16 02:01:20,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (31)] Waiting until timeout for monitored process [2021-10-16 02:01:25,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:01:25,044 INFO L263 TraceCheckSpWp]: Trace formula consists of 684 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-16 02:01:25,050 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:01:26,183 INFO L134 CoverageAnalysis]: Checked inductivity of 3942 backedges. 2057 proven. 14 refuted. 0 times theorem prover too weak. 1871 trivial. 0 not checked. [2021-10-16 02:01:26,183 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:01:27,334 INFO L134 CoverageAnalysis]: Checked inductivity of 3942 backedges. 2057 proven. 14 refuted. 0 times theorem prover too weak. 1871 trivial. 0 not checked. [2021-10-16 02:01:27,335 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [120157877] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:01:27,335 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1689939423] [2021-10-16 02:01:27,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:01:27,335 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:01:27,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:01:27,336 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 02:01:27,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2021-10-16 02:01:31,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:01:31,219 INFO L263 TraceCheckSpWp]: Trace formula consists of 684 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-16 02:01:31,223 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:01:32,307 INFO L134 CoverageAnalysis]: Checked inductivity of 3942 backedges. 2057 proven. 14 refuted. 0 times theorem prover too weak. 1871 trivial. 0 not checked. [2021-10-16 02:01:32,307 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:01:33,454 INFO L134 CoverageAnalysis]: Checked inductivity of 3942 backedges. 2057 proven. 14 refuted. 0 times theorem prover too weak. 1871 trivial. 0 not checked. [2021-10-16 02:01:33,454 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1689939423] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:01:33,454 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-16 02:01:33,455 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4, 4, 4, 4] total 6 [2021-10-16 02:01:33,455 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87856993] [2021-10-16 02:01:33,457 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-16 02:01:33,457 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:01:33,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-16 02:01:33,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-16 02:01:33,457 INFO L87 Difference]: Start difference. First operand 6098 states and 7575 transitions. Second operand has 6 states, 6 states have (on average 44.666666666666664) internal successors, (268), 6 states have internal predecessors, (268), 0 states have call successors, (0), 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 02:01:33,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:01:33,645 INFO L93 Difference]: Finished difference Result 6311 states and 7845 transitions. [2021-10-16 02:01:33,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-16 02:01:33,645 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 44.666666666666664) internal successors, (268), 6 states have internal predecessors, (268), 0 states have call successors, (0), 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 605 [2021-10-16 02:01:33,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:01:33,646 INFO L225 Difference]: With dead ends: 6311 [2021-10-16 02:01:33,646 INFO L226 Difference]: Without dead ends: 0 [2021-10-16 02:01:33,649 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3628 GetRequests, 3622 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 22.0ms TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-10-16 02:01:33,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-16 02:01:33,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-16 02:01:33,650 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 02:01:33,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-16 02:01:33,650 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 605 [2021-10-16 02:01:33,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:01:33,650 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-16 02:01:33,651 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 44.666666666666664) internal successors, (268), 6 states have internal predecessors, (268), 0 states have call successors, (0), 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 02:01:33,651 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-16 02:01:33,651 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-16 02:01:33,653 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:01:33,706 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2021-10-16 02:01:33,891 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2021-10-16 02:01:34,088 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (31)] Forceful destruction successful, exit code 0 [2021-10-16 02:01:34,277 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt [2021-10-16 02:01:34,279 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-16 02:01:34,284 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:01:34,351 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:01:34,354 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:01:34,573 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:01:34,582 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:01:34,619 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:01:34,622 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:01:34,675 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:01:34,676 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:01:34,684 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:01:34,797 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:01:34,818 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:01:34,913 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:01:34,915 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:01:35,494 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:01:35,541 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:01:35,542 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:01:35,605 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:01:35,608 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:01:35,690 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:01:35,716 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:01:35,717 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:01:39,157 INFO L860 garLoopResultBuilder]: At program point L630(lines 622 632) the Hoare annotation is: true [2021-10-16 02:01:39,157 INFO L857 garLoopResultBuilder]: For program point L531(lines 531 535) no Hoare annotation was computed. [2021-10-16 02:01:39,158 INFO L857 garLoopResultBuilder]: For program point L234(lines 234 239) no Hoare annotation was computed. [2021-10-16 02:01:39,158 INFO L857 garLoopResultBuilder]: For program point L499(lines 499 504) no Hoare annotation was computed. [2021-10-16 02:01:39,158 INFO L857 garLoopResultBuilder]: For program point L466(lines 466 477) no Hoare annotation was computed. [2021-10-16 02:01:39,158 INFO L857 garLoopResultBuilder]: For program point L466-1(lines 466 477) no Hoare annotation was computed. [2021-10-16 02:01:39,158 INFO L857 garLoopResultBuilder]: For program point L202(lines 202 545) no Hoare annotation was computed. [2021-10-16 02:01:39,158 INFO L857 garLoopResultBuilder]: For program point L169(lines 169 556) no Hoare annotation was computed. [2021-10-16 02:01:39,158 INFO L857 garLoopResultBuilder]: For program point L136(lines 136 567) no Hoare annotation was computed. [2021-10-16 02:01:39,159 INFO L857 garLoopResultBuilder]: For program point L401(lines 401 405) no Hoare annotation was computed. [2021-10-16 02:01:39,159 INFO L857 garLoopResultBuilder]: For program point L335(lines 335 339) no Hoare annotation was computed. [2021-10-16 02:01:39,159 INFO L857 garLoopResultBuilder]: For program point L335-2(lines 210 540) no Hoare annotation was computed. [2021-10-16 02:01:39,159 INFO L853 garLoopResultBuilder]: At program point L203(lines 202 545) the Hoare annotation is: (let ((.cse0 (= (_ bv2 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) (.cse1 (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32))) (.cse2 (= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 (_ bv4560 32))) (.cse3 (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4352 32)))) (or (and .cse0 .cse1 .cse2 .cse3) (and (= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 (_ bv3 32)) .cse0 (not .cse1) .cse3) (and (not (= (_ bv3 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse1 .cse2 (= (bvadd (_ bv256 32) ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0) (_ bv0 32)) .cse3))) [2021-10-16 02:01:39,159 INFO L853 garLoopResultBuilder]: At program point L170(lines 160 559) 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 (_ bv4385 32)))) (.cse7 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32)))) (.cse8 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32)))) (.cse9 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32)))) (.cse10 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4384 32))))) (or (and .cse0 (= (_ bv2 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10) (and .cse0 (not (= (_ bv3 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse7 .cse8 (= (bvadd (_ bv256 32) ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0) (_ bv0 32)) .cse9 .cse10))) [2021-10-16 02:01:39,159 INFO L857 garLoopResultBuilder]: For program point L468(lines 468 474) no Hoare annotation was computed. [2021-10-16 02:01:39,159 INFO L857 garLoopResultBuilder]: For program point L270(lines 270 274) no Hoare annotation was computed. [2021-10-16 02:01:39,160 INFO L857 garLoopResultBuilder]: For program point L270-2(lines 210 540) no Hoare annotation was computed. [2021-10-16 02:01:39,160 INFO L857 garLoopResultBuilder]: For program point L205(lines 205 544) no Hoare annotation was computed. [2021-10-16 02:01:39,160 INFO L857 garLoopResultBuilder]: For program point L172(lines 172 555) no Hoare annotation was computed. [2021-10-16 02:01:39,160 INFO L857 garLoopResultBuilder]: For program point L139(lines 139 566) no Hoare annotation was computed. [2021-10-16 02:01:39,160 INFO L857 garLoopResultBuilder]: For program point L106-1(lines 72 620) no Hoare annotation was computed. [2021-10-16 02:01:39,160 INFO L857 garLoopResultBuilder]: For program point L305(lines 305 309) no Hoare annotation was computed. [2021-10-16 02:01:39,160 INFO L857 garLoopResultBuilder]: For program point L305-2(lines 305 309) no Hoare annotation was computed. [2021-10-16 02:01:39,160 INFO L860 garLoopResultBuilder]: At program point L206(lines 205 544) the Hoare annotation is: true [2021-10-16 02:01:39,161 INFO L853 garLoopResultBuilder]: At program point L140(lines 136 567) 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 (_ bv4385 32)))) (.cse7 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32)))) (.cse8 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32)))) (.cse9 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32)))) (.cse10 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4384 32))))) (or (and (not (= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 (_ bv4384 32))) .cse0 (not (= (_ bv3 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse7 .cse8 (= (bvadd (_ bv256 32) ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0) (_ bv0 32)) .cse9 .cse10) (and .cse0 (= (_ bv2 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10))) [2021-10-16 02:01:39,161 INFO L857 garLoopResultBuilder]: For program point L107(line 107) no Hoare annotation was computed. [2021-10-16 02:01:39,161 INFO L857 garLoopResultBuilder]: For program point L438(lines 438 442) no Hoare annotation was computed. [2021-10-16 02:01:39,161 INFO L857 garLoopResultBuilder]: For program point L438-2(lines 210 540) no Hoare annotation was computed. [2021-10-16 02:01:39,161 INFO L857 garLoopResultBuilder]: For program point L240(lines 240 245) no Hoare annotation was computed. [2021-10-16 02:01:39,161 INFO L857 garLoopResultBuilder]: For program point L373(lines 373 377) no Hoare annotation was computed. [2021-10-16 02:01:39,162 INFO L857 garLoopResultBuilder]: For program point L175(lines 175 554) no Hoare annotation was computed. [2021-10-16 02:01:39,162 INFO L857 garLoopResultBuilder]: For program point L142(lines 142 565) no Hoare annotation was computed. [2021-10-16 02:01:39,162 INFO L857 garLoopResultBuilder]: For program point L109(lines 109 576) no Hoare annotation was computed. [2021-10-16 02:01:39,162 INFO L857 garLoopResultBuilder]: For program point L407(lines 407 412) no Hoare annotation was computed. [2021-10-16 02:01:39,162 INFO L857 garLoopResultBuilder]: For program point L407-2(lines 407 412) no Hoare annotation was computed. [2021-10-16 02:01:39,162 INFO L860 garLoopResultBuilder]: At program point L209(lines 208 543) the Hoare annotation is: true [2021-10-16 02:01:39,163 INFO L853 garLoopResultBuilder]: At program point L176(lines 172 555) 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 (_ bv4385 32)))) (.cse7 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32)))) (.cse8 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32)))) (.cse9 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32)))) (.cse10 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4384 32))))) (or (and .cse0 (= (_ bv2 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10) (and .cse0 (not (= (_ bv3 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse7 .cse8 (= (bvadd (_ bv256 32) ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0) (_ bv0 32)) .cse9 .cse10))) [2021-10-16 02:01:39,163 INFO L853 garLoopResultBuilder]: At program point L110(lines 109 576) the Hoare annotation is: (and (= (_ bv0 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv12292 32))) [2021-10-16 02:01:39,163 INFO L853 garLoopResultBuilder]: At program point L541(lines 106 607) the Hoare annotation is: (let ((.cse4 (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32)))) (let ((.cse12 (= (_ bv4464 32) ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse8 (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4416 32))) (.cse2 (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4560 32))) (.cse9 (= (_ bv4480 32) ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse5 (= (_ bv4432 32) ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse16 (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4400 32))) (.cse11 (not .cse4)) (.cse1 (= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 (_ bv4560 32))) (.cse18 (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4352 32))) (.cse15 (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4512 32))) (.cse13 (not (= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 (_ bv4384 32)))) (.cse14 (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv3 32))) (.cse10 (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4496 32))) (.cse3 (not (= (_ bv3 32) ULTIMATE.start_ssl3_connect_~blastFlag~0))) (.cse19 (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4448 32))) (.cse6 (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0))) (.cse7 (= (bvadd (_ bv256 32) ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0) (_ bv0 32))) (.cse0 (= (_ bv2 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) (.cse17 (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4528 32)))) (or (and (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4368 32)) (= (_ bv0 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) (and .cse0 .cse1 .cse2) (and .cse3 .cse4 .cse5 .cse6 .cse7) (and .cse4 .cse8 .cse6 .cse7) (and .cse3 .cse4 .cse6 .cse9 .cse7) (and .cse10 .cse0 .cse4) (and .cse0 .cse2 .cse11) (and .cse3 .cse12 .cse4 .cse6 .cse7) (and .cse12 .cse0 .cse4) (and .cse13 .cse0 .cse14) (and .cse0 .cse4 .cse8) (and .cse3 .cse4 .cse1 .cse2 .cse7) (and .cse0 .cse4 .cse9) (and .cse0 .cse15) (and .cse13 .cse3 .cse4 .cse16 .cse6 .cse7) (and .cse0 .cse4 .cse5) (and .cse0 .cse4 .cse16) (and .cse3 .cse4 .cse17 .cse6 .cse7) (and .cse0 .cse4 .cse14) (and .cse0 .cse4 .cse1 .cse18) (and (= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 (_ bv3 32)) .cse0 .cse11 .cse18) (and .cse3 .cse4 .cse1 .cse7 .cse18) (and .cse3 .cse4 .cse6 .cse15 .cse7) (and .cse0 .cse4 .cse19) (and (= (_ bv1 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4384 32))) (and .cse13 .cse3 .cse14 .cse7) (and .cse3 .cse10 .cse4 .cse6 .cse7) (and .cse3 .cse4 .cse19 .cse6 .cse7) (and .cse0 .cse17)))) [2021-10-16 02:01:39,163 INFO L857 garLoopResultBuilder]: For program point L178(lines 178 553) no Hoare annotation was computed. [2021-10-16 02:01:39,163 INFO L857 garLoopResultBuilder]: For program point L145(lines 145 564) no Hoare annotation was computed. [2021-10-16 02:01:39,163 INFO L857 garLoopResultBuilder]: For program point L112(lines 112 575) no Hoare annotation was computed. [2021-10-16 02:01:39,164 INFO L860 garLoopResultBuilder]: At program point L608(lines 105 609) the Hoare annotation is: true [2021-10-16 02:01:39,164 INFO L853 garLoopResultBuilder]: At program point L146(lines 142 565) 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 (_ bv4385 32)))) (.cse7 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32)))) (.cse8 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32)))) (.cse9 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32)))) (.cse10 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4384 32))))) (or (and .cse0 (= (_ bv2 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse7 .cse8 (= (bvadd (_ bv256 32) ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0) (_ bv0 32)) .cse9 .cse10))) [2021-10-16 02:01:39,164 INFO L857 garLoopResultBuilder]: For program point L378(lines 378 382) no Hoare annotation was computed. [2021-10-16 02:01:39,164 INFO L857 garLoopResultBuilder]: For program point L378-2(lines 378 382) no Hoare annotation was computed. [2021-10-16 02:01:39,164 INFO L857 garLoopResultBuilder]: For program point L577(lines 577 605) no Hoare annotation was computed. [2021-10-16 02:01:39,164 INFO L857 garLoopResultBuilder]: For program point L181(lines 181 552) no Hoare annotation was computed. [2021-10-16 02:01:39,164 INFO L857 garLoopResultBuilder]: For program point L148(lines 148 563) no Hoare annotation was computed. [2021-10-16 02:01:39,164 INFO L857 garLoopResultBuilder]: For program point L115(lines 115 574) no Hoare annotation was computed. [2021-10-16 02:01:39,164 INFO L857 garLoopResultBuilder]: For program point L578(lines 578 602) no Hoare annotation was computed. [2021-10-16 02:01:39,164 INFO L857 garLoopResultBuilder]: For program point L512-1(lines 210 540) no Hoare annotation was computed. [2021-10-16 02:01:39,164 INFO L857 garLoopResultBuilder]: For program point L347(lines 347 352) no Hoare annotation was computed. [2021-10-16 02:01:39,164 INFO L857 garLoopResultBuilder]: For program point L314-1(lines 314 328) no Hoare annotation was computed. [2021-10-16 02:01:39,165 INFO L853 garLoopResultBuilder]: At program point L215(lines 112 575) the Hoare annotation is: (and (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4368 32))) (= (_ bv0 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) (not (= (_ bv4432 32) ULTIMATE.start_ssl3_connect_~s__state~0)) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv20480 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv12292 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4385 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4400 32))) (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))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4384 32)))) [2021-10-16 02:01:39,165 INFO L853 garLoopResultBuilder]: At program point L182(lines 178 553) 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 (_ bv4385 32)))) (.cse7 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32)))) (.cse8 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32)))) (.cse9 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32)))) (.cse10 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4384 32))))) (or (and .cse0 (= (_ bv2 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10) (and .cse0 (not (= (_ bv3 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse7 .cse8 (= (bvadd (_ bv256 32) ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0) (_ bv0 32)) .cse9 .cse10))) [2021-10-16 02:01:39,165 INFO L857 garLoopResultBuilder]: For program point L612(lines 612 616) no Hoare annotation was computed. [2021-10-16 02:01:39,165 INFO L857 garLoopResultBuilder]: For program point L579(lines 579 588) no Hoare annotation was computed. [2021-10-16 02:01:39,165 INFO L857 garLoopResultBuilder]: For program point L612-2(lines 612 616) no Hoare annotation was computed. [2021-10-16 02:01:39,165 INFO L857 garLoopResultBuilder]: For program point L579-2(lines 578 600) no Hoare annotation was computed. [2021-10-16 02:01:39,165 INFO L857 garLoopResultBuilder]: For program point L282(lines 282 286) no Hoare annotation was computed. [2021-10-16 02:01:39,165 INFO L857 garLoopResultBuilder]: For program point L184(lines 184 551) no Hoare annotation was computed. [2021-10-16 02:01:39,165 INFO L857 garLoopResultBuilder]: For program point L151(lines 151 562) no Hoare annotation was computed. [2021-10-16 02:01:39,166 INFO L857 garLoopResultBuilder]: For program point L118(lines 118 573) no Hoare annotation was computed. [2021-10-16 02:01:39,166 INFO L857 garLoopResultBuilder]: For program point L581(lines 581 585) no Hoare annotation was computed. [2021-10-16 02:01:39,166 INFO L857 garLoopResultBuilder]: For program point L449(lines 449 454) no Hoare annotation was computed. [2021-10-16 02:01:39,166 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-16 02:01:39,166 INFO L853 garLoopResultBuilder]: At program point L152(lines 148 563) the Hoare annotation is: (let ((.cse0 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4368 32)))) (.cse1 (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32))) (.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 (_ bv4385 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)))) (.cse9 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4384 32))))) (or (and .cse0 (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 (= (bvadd (_ bv256 32) ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0) (_ bv0 32)) .cse8 .cse9) (and .cse0 (= (_ bv2 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9))) [2021-10-16 02:01:39,166 INFO L857 garLoopResultBuilder]: For program point L86(lines 86 94) no Hoare annotation was computed. [2021-10-16 02:01:39,166 INFO L857 garLoopResultBuilder]: For program point L483(lines 483 487) no Hoare annotation was computed. [2021-10-16 02:01:39,166 INFO L857 garLoopResultBuilder]: For program point L318(lines 318 322) no Hoare annotation was computed. [2021-10-16 02:01:39,166 INFO L857 garLoopResultBuilder]: For program point L318-2(lines 316 328) no Hoare annotation was computed. [2021-10-16 02:01:39,167 INFO L857 garLoopResultBuilder]: For program point L517-1(lines 517 521) no Hoare annotation was computed. [2021-10-16 02:01:39,167 INFO L857 garLoopResultBuilder]: For program point L418(lines 418 422) no Hoare annotation was computed. [2021-10-16 02:01:39,167 INFO L857 garLoopResultBuilder]: For program point L220(lines 220 224) no Hoare annotation was computed. [2021-10-16 02:01:39,167 INFO L857 garLoopResultBuilder]: For program point L187(lines 187 550) no Hoare annotation was computed. [2021-10-16 02:01:39,167 INFO L857 garLoopResultBuilder]: For program point L154(lines 154 561) no Hoare annotation was computed. [2021-10-16 02:01:39,167 INFO L857 garLoopResultBuilder]: For program point L220-2(lines 210 540) no Hoare annotation was computed. [2021-10-16 02:01:39,167 INFO L857 garLoopResultBuilder]: For program point L121(lines 121 572) no Hoare annotation was computed. [2021-10-16 02:01:39,168 INFO L853 garLoopResultBuilder]: At program point L188(lines 184 551) the Hoare annotation is: (let ((.cse3 (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32))) (.cse0 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4368 32)))) (.cse1 (= (_ bv2 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) (.cse2 (not (= (_ bv4432 32) ULTIMATE.start_ssl3_connect_~s__state~0))) (.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 (_ bv4385 32)))) (.cse8 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32)))) (.cse9 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32)))) (.cse10 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32)))) (.cse11 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4384 32))))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11) (and .cse0 (not (= (_ bv3 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse8 .cse9 (= (bvadd (_ bv256 32) ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0) (_ bv0 32)) .cse10 .cse11) (and .cse0 .cse1 .cse2 .cse4 .cse5 .cse6 .cse7 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4400 32))) .cse8 .cse9 .cse10 .cse11))) [2021-10-16 02:01:39,168 INFO L857 garLoopResultBuilder]: For program point L89(lines 89 93) no Hoare annotation was computed. [2021-10-16 02:01:39,168 INFO L857 garLoopResultBuilder]: For program point L89-2(lines 86 94) no Hoare annotation was computed. [2021-10-16 02:01:39,168 INFO L860 garLoopResultBuilder]: At program point L619(lines 19 621) the Hoare annotation is: true [2021-10-16 02:01:39,168 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-16 02:01:39,168 INFO L857 garLoopResultBuilder]: For program point L256(lines 256 261) no Hoare annotation was computed. [2021-10-16 02:01:39,168 INFO L857 garLoopResultBuilder]: For program point L190(lines 190 549) no Hoare annotation was computed. [2021-10-16 02:01:39,168 INFO L857 garLoopResultBuilder]: For program point L157(lines 157 560) no Hoare annotation was computed. [2021-10-16 02:01:39,168 INFO L857 garLoopResultBuilder]: For program point L124(lines 124 571) no Hoare annotation was computed. [2021-10-16 02:01:39,168 INFO L857 garLoopResultBuilder]: For program point L488(lines 488 492) no Hoare annotation was computed. [2021-10-16 02:01:39,168 INFO L857 garLoopResultBuilder]: For program point L488-2(lines 488 492) no Hoare annotation was computed. [2021-10-16 02:01:39,168 INFO L853 garLoopResultBuilder]: At program point L158(lines 154 561) 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 (_ bv4385 32)))) (.cse7 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32)))) (.cse8 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32)))) (.cse9 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32)))) (.cse10 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4384 32))))) (or (and .cse0 (= (_ bv2 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10) (and .cse0 (not (= (_ bv3 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse7 .cse8 (= (bvadd (_ bv256 32) ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0) (_ bv0 32)) .cse9 .cse10))) [2021-10-16 02:01:39,169 INFO L857 garLoopResultBuilder]: For program point L390(lines 390 394) no Hoare annotation was computed. [2021-10-16 02:01:39,169 INFO L857 garLoopResultBuilder]: For program point L357(lines 357 361) no Hoare annotation was computed. [2021-10-16 02:01:39,169 INFO L857 garLoopResultBuilder]: For program point L291(lines 291 299) no Hoare annotation was computed. [2021-10-16 02:01:39,169 INFO L853 garLoopResultBuilder]: At program point L358(lines 72 620) the Hoare annotation is: false [2021-10-16 02:01:39,169 INFO L857 garLoopResultBuilder]: For program point L193(lines 193 548) no Hoare annotation was computed. [2021-10-16 02:01:39,169 INFO L857 garLoopResultBuilder]: For program point L160(lines 160 559) no Hoare annotation was computed. [2021-10-16 02:01:39,169 INFO L857 garLoopResultBuilder]: For program point L127(lines 127 570) no Hoare annotation was computed. [2021-10-16 02:01:39,169 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-16 02:01:39,169 INFO L857 garLoopResultBuilder]: For program point L590(lines 590 596) no Hoare annotation was computed. [2021-10-16 02:01:39,169 INFO L857 garLoopResultBuilder]: For program point L524(lines 524 528) no Hoare annotation was computed. [2021-10-16 02:01:39,169 INFO L857 garLoopResultBuilder]: For program point L524-2(lines 524 528) no Hoare annotation was computed. [2021-10-16 02:01:39,170 INFO L853 garLoopResultBuilder]: At program point L194(lines 190 549) the Hoare annotation is: (let ((.cse3 (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32))) (.cse0 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4368 32)))) (.cse1 (= (_ bv2 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) (.cse2 (not (= (_ bv4432 32) ULTIMATE.start_ssl3_connect_~s__state~0))) (.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 (_ bv4385 32)))) (.cse8 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32)))) (.cse9 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32)))) (.cse10 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32)))) (.cse11 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4384 32))))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11) (and .cse0 (not (= (_ bv3 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse8 .cse9 (= (bvadd (_ bv256 32) ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0) (_ bv0 32)) .cse10 .cse11) (and .cse0 .cse1 .cse2 .cse4 .cse5 .cse6 .cse7 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4400 32))) .cse8 .cse9 .cse10 .cse11))) [2021-10-16 02:01:39,170 INFO L853 garLoopResultBuilder]: At program point L128(lines 124 571) the Hoare annotation is: (and (= (_ bv0 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) (not (= (_ bv4432 32) ULTIMATE.start_ssl3_connect_~s__state~0)) (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 (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4385 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4400 32))) (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))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4384 32)))) [2021-10-16 02:01:39,170 INFO L857 garLoopResultBuilder]: For program point L459(lines 459 463) no Hoare annotation was computed. [2021-10-16 02:01:39,170 INFO L857 garLoopResultBuilder]: For program point L294(lines 294 298) no Hoare annotation was computed. [2021-10-16 02:01:39,170 INFO L857 garLoopResultBuilder]: For program point L294-2(lines 210 540) no Hoare annotation was computed. [2021-10-16 02:01:39,170 INFO L857 garLoopResultBuilder]: For program point L96(lines 96 104) no Hoare annotation was computed. [2021-10-16 02:01:39,170 INFO L857 garLoopResultBuilder]: For program point L196(lines 196 547) no Hoare annotation was computed. [2021-10-16 02:01:39,170 INFO L857 garLoopResultBuilder]: For program point L163(lines 163 558) no Hoare annotation was computed. [2021-10-16 02:01:39,170 INFO L857 garLoopResultBuilder]: For program point L130(lines 130 569) no Hoare annotation was computed. [2021-10-16 02:01:39,170 INFO L857 garLoopResultBuilder]: For program point L97(lines 97 101) no Hoare annotation was computed. [2021-10-16 02:01:39,170 INFO L857 garLoopResultBuilder]: For program point L362(lines 362 366) no Hoare annotation was computed. [2021-10-16 02:01:39,170 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-16 02:01:39,170 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 618) no Hoare annotation was computed. [2021-10-16 02:01:39,170 INFO L857 garLoopResultBuilder]: For program point L496-1(lines 496 508) no Hoare annotation was computed. [2021-10-16 02:01:39,171 INFO L857 garLoopResultBuilder]: For program point L430(lines 430 434) no Hoare annotation was computed. [2021-10-16 02:01:39,171 INFO L857 garLoopResultBuilder]: For program point L232(lines 232 249) no Hoare annotation was computed. [2021-10-16 02:01:39,171 INFO L857 garLoopResultBuilder]: For program point L199(lines 199 546) no Hoare annotation was computed. [2021-10-16 02:01:39,171 INFO L857 garLoopResultBuilder]: For program point L166(lines 166 557) no Hoare annotation was computed. [2021-10-16 02:01:39,171 INFO L857 garLoopResultBuilder]: For program point L232-2(lines 210 540) no Hoare annotation was computed. [2021-10-16 02:01:39,171 INFO L857 garLoopResultBuilder]: For program point L133(lines 133 568) no Hoare annotation was computed. [2021-10-16 02:01:39,171 INFO L853 garLoopResultBuilder]: At program point L200(lines 196 547) the Hoare annotation is: (let ((.cse9 (= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 (_ bv4560 32))) (.cse0 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4368 32)))) (.cse12 (= (_ bv2 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) (.cse1 (not (= (_ bv4432 32) ULTIMATE.start_ssl3_connect_~s__state~0))) (.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 (_ bv4385 32)))) (.cse7 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32)))) (.cse8 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32)))) (.cse10 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32)))) (.cse11 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4384 32)))) (.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32)))) (or (and .cse0 (not (= (_ bv3 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 (= (bvadd (_ bv256 32) ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0) (_ bv0 32)) .cse10 .cse11) (and .cse0 .cse12 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11) (and (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4400 32))) (or (and .cse12 (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4560 32))) (and (not (= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 (_ bv4384 32))) .cse0 .cse12 .cse1 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse10 .cse11)) (not .cse2)))) [2021-10-16 02:01:39,171 INFO L853 garLoopResultBuilder]: At program point L134(lines 130 569) 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)) (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 (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4385 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4400 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32))) (= (_ bv1 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32)))) [2021-10-16 02:01:39,174 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 02:01:39,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 02:01:39 BoogieIcfgContainer [2021-10-16 02:01:39,252 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-16 02:01:39,252 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-16 02:01:39,253 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-16 02:01:39,253 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-16 02:01:39,253 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:00:07" (3/4) ... [2021-10-16 02:01:39,256 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-16 02:01:39,282 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-16 02:01:39,283 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-16 02:01:39,284 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-16 02:01:39,285 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-16 02:01:39,374 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/witness.graphml [2021-10-16 02:01:39,374 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-16 02:01:39,376 INFO L168 Benchmark]: Toolchain (without parser) took 93092.42 ms. Allocated memory was 60.8 MB in the beginning and 1.0 GB in the end (delta: 945.8 MB). Free memory was 39.9 MB in the beginning and 478.5 MB in the end (delta: -438.6 MB). Peak memory consumption was 507.2 MB. Max. memory is 16.1 GB. [2021-10-16 02:01:39,376 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 60.8 MB. Free memory is still 41.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:01:39,377 INFO L168 Benchmark]: CACSL2BoogieTranslator took 359.16 ms. Allocated memory is still 60.8 MB. Free memory was 39.7 MB in the beginning and 41.6 MB in the end (delta: -2.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-16 02:01:39,377 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.31 ms. Allocated memory is still 60.8 MB. Free memory was 41.5 MB in the beginning and 39.2 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:01:39,377 INFO L168 Benchmark]: Boogie Preprocessor took 39.40 ms. Allocated memory is still 60.8 MB. Free memory was 39.2 MB in the beginning and 37.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:01:39,378 INFO L168 Benchmark]: RCFGBuilder took 661.35 ms. Allocated memory was 60.8 MB in the beginning and 79.7 MB in the end (delta: 18.9 MB). Free memory was 37.1 MB in the beginning and 50.8 MB in the end (delta: -13.7 MB). Peak memory consumption was 17.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:01:39,378 INFO L168 Benchmark]: TraceAbstraction took 91856.36 ms. Allocated memory was 79.7 MB in the beginning and 1.0 GB in the end (delta: 926.9 MB). Free memory was 50.1 MB in the beginning and 489.0 MB in the end (delta: -438.8 MB). Peak memory consumption was 767.7 MB. Max. memory is 16.1 GB. [2021-10-16 02:01:39,379 INFO L168 Benchmark]: Witness Printer took 121.76 ms. Allocated memory is still 1.0 GB. Free memory was 489.0 MB in the beginning and 478.5 MB in the end (delta: 10.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-16 02:01:39,381 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 60.8 MB. Free memory is still 41.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 359.16 ms. Allocated memory is still 60.8 MB. Free memory was 39.7 MB in the beginning and 41.6 MB in the end (delta: -2.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 48.31 ms. Allocated memory is still 60.8 MB. Free memory was 41.5 MB in the beginning and 39.2 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 39.40 ms. Allocated memory is still 60.8 MB. Free memory was 39.2 MB in the beginning and 37.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 661.35 ms. Allocated memory was 60.8 MB in the beginning and 79.7 MB in the end (delta: 18.9 MB). Free memory was 37.1 MB in the beginning and 50.8 MB in the end (delta: -13.7 MB). Peak memory consumption was 17.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 91856.36 ms. Allocated memory was 79.7 MB in the beginning and 1.0 GB in the end (delta: 926.9 MB). Free memory was 50.1 MB in the beginning and 489.0 MB in the end (delta: -438.8 MB). Peak memory consumption was 767.7 MB. Max. memory is 16.1 GB. * Witness Printer took 121.76 ms. Allocated memory is still 1.0 GB. Free memory was 489.0 MB in the beginning and 478.5 MB in the end (delta: 10.5 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: 618]: 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, 124 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 91718.7ms, OverallIterations: 25, TraceHistogramMax: 21, EmptinessCheckTime: 259.9ms, AutomataDifference: 5848.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 4878.8ms, InitialAbstractionConstructionTime: 16.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 4439 SDtfs, 3297 SDslu, 3551 SDs, 0 SdLazy, 3340 SolverSat, 660 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2596.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16406 GetRequests, 16348 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 189.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=14008occurred in iteration=22, InterpolantAutomatonStates: 97, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 2930.8ms AutomataMinimizationTime, 25 MinimizatonAttempts, 7025 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 22 LocationsWithAnnotation, 22 PreInvPairs, 292 NumberOfFragments, 1800 HoareAnnotationTreeSize, 22 FomulaSimplifications, 20649 FormulaSimplificationTreeSizeReduction, 1477.3ms HoareSimplificationTime, 22 FomulaSimplificationsInter, 11785 FormulaSimplificationTreeSizeReductionInter, 3386.6ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 485.3ms SsaConstructionTime, 2223.4ms SatisfiabilityAnalysisTime, 32386.1ms InterpolantComputationTime, 8228 NumberOfCodeBlocks, 8228 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 16394 ConstructedInterpolants, 0 QuantifiedInterpolants, 22902 SizeOfPredicates, 11 NumberOfNonLiveVariables, 10100 ConjunctsInSsa, 73 ConjunctsInUnsatCore, 62 InterpolantComputations, 46 PerfectInterpolantSequences, 73116/73324 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: 109]: Loop Invariant Derived loop invariant: 0bv32 == blastFlag && s__state == 12292bv32 - InvariantResult [Line: 105]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 130]: Loop Invariant Derived loop invariant: (((((((((!(s__state == 4368bv32) && !(4432bv32 == s__state)) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4385bv32)) && !(s__state == 4400bv32)) && !(s__state == 4369bv32)) && 1bv32 == blastFlag) && !(s__state == 16384bv32)) && !(s__state == 4099bv32) - InvariantResult [Line: 196]: 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 == 4385bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && s__s3__tmp__next_state___0 == 4560bv32) && ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms) == 0bv32) && !(s__state == 4099bv32)) && !(s__state == 4384bv32)) || ((((((((((((!(s__state == 4368bv32) && 2bv32 == blastFlag) && !(4432bv32 == s__state)) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4385bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && s__s3__tmp__next_state___0 == 4560bv32) && !(s__state == 4099bv32)) && !(s__state == 4384bv32))) || ((!(s__state == 4400bv32) && ((2bv32 == blastFlag && s__state == 4560bv32) || (((((((((((!(s__s3__tmp__next_state___0 == 4384bv32) && !(s__state == 4368bv32)) && 2bv32 == blastFlag) && !(4432bv32 == s__state)) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4385bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) && !(s__state == 4384bv32)))) && !(s__hit == 0bv32)) - InvariantResult [Line: 142]: Loop Invariant Derived loop invariant: (((((((((((!(s__state == 4368bv32) && 2bv32 == blastFlag) && !(4432bv32 == s__state)) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4385bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) && !(s__state == 4384bv32)) || ((((((((((((!(s__state == 4368bv32) && !(4432bv32 == s__state)) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4385bv32)) && !(5bv32 == blastFlag)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms) == 0bv32) && !(s__state == 4099bv32)) && !(s__state == 4384bv32)) - InvariantResult [Line: 124]: Loop Invariant Derived loop invariant: (((((((((0bv32 == blastFlag && !(4432bv32 == s__state)) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4385bv32)) && !(s__state == 4400bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) && !(s__state == 4384bv32) - InvariantResult [Line: 136]: Loop Invariant Derived loop invariant: ((((((((((((((!(s__s3__tmp__next_state___0 == 4384bv32) && !(s__state == 4368bv32)) && !(3bv32 == blastFlag)) && !(4432bv32 == s__state)) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4385bv32)) && !(5bv32 == blastFlag)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms) == 0bv32) && !(s__state == 4099bv32)) && !(s__state == 4384bv32)) || (((((((((((!(s__state == 4368bv32) && 2bv32 == blastFlag) && !(4432bv32 == s__state)) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4385bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) && !(s__state == 4384bv32)) - InvariantResult [Line: 208]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 172]: Loop Invariant Derived loop invariant: (((((((((((!(s__state == 4368bv32) && 2bv32 == blastFlag) && !(4432bv32 == s__state)) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4385bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) && !(s__state == 4384bv32)) || (((((((((((((!(s__state == 4368bv32) && !(3bv32 == blastFlag)) && !(4432bv32 == s__state)) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4385bv32)) && !(5bv32 == blastFlag)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms) == 0bv32) && !(s__state == 4099bv32)) && !(s__state == 4384bv32)) - InvariantResult [Line: 202]: Loop Invariant Derived loop invariant: ((((2bv32 == blastFlag && s__hit == 0bv32) && s__s3__tmp__next_state___0 == 4560bv32) && s__state == 4352bv32) || (((s__s3__tmp__next_state___0 == 3bv32 && 2bv32 == blastFlag) && !(s__hit == 0bv32)) && s__state == 4352bv32)) || ((((!(3bv32 == blastFlag) && s__hit == 0bv32) && s__s3__tmp__next_state___0 == 4560bv32) && ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms) == 0bv32) && s__state == 4352bv32) - InvariantResult [Line: 190]: Loop Invariant Derived loop invariant: ((((((((((((!(s__state == 4368bv32) && 2bv32 == blastFlag) && !(4432bv32 == s__state)) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4385bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) && !(s__state == 4384bv32)) || (((((((((((((!(s__state == 4368bv32) && !(3bv32 == blastFlag)) && !(4432bv32 == s__state)) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4385bv32)) && !(5bv32 == blastFlag)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms) == 0bv32) && !(s__state == 4099bv32)) && !(s__state == 4384bv32))) || (((((((((((!(s__state == 4368bv32) && 2bv32 == blastFlag) && !(4432bv32 == s__state)) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4385bv32)) && !(s__state == 4400bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) && !(s__state == 4384bv32)) - InvariantResult [Line: 106]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((s__state == 4368bv32 && 0bv32 == blastFlag) || ((2bv32 == blastFlag && s__s3__tmp__next_state___0 == 4560bv32) && s__state == 4560bv32)) || ((((!(3bv32 == blastFlag) && s__hit == 0bv32) && 4432bv32 == s__state) && !(5bv32 == blastFlag)) && ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms) == 0bv32)) || (((s__hit == 0bv32 && s__state == 4416bv32) && !(5bv32 == blastFlag)) && ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms) == 0bv32)) || ((((!(3bv32 == blastFlag) && s__hit == 0bv32) && !(5bv32 == blastFlag)) && 4480bv32 == s__state) && ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms) == 0bv32)) || ((s__state == 4496bv32 && 2bv32 == blastFlag) && s__hit == 0bv32)) || ((2bv32 == blastFlag && s__state == 4560bv32) && !(s__hit == 0bv32))) || ((((!(3bv32 == blastFlag) && 4464bv32 == s__state) && s__hit == 0bv32) && !(5bv32 == blastFlag)) && ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms) == 0bv32)) || ((4464bv32 == s__state && 2bv32 == blastFlag) && s__hit == 0bv32)) || ((!(s__s3__tmp__next_state___0 == 4384bv32) && 2bv32 == blastFlag) && s__state == 3bv32)) || ((2bv32 == blastFlag && s__hit == 0bv32) && s__state == 4416bv32)) || ((((!(3bv32 == blastFlag) && s__hit == 0bv32) && s__s3__tmp__next_state___0 == 4560bv32) && s__state == 4560bv32) && ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms) == 0bv32)) || ((2bv32 == blastFlag && s__hit == 0bv32) && 4480bv32 == s__state)) || (2bv32 == blastFlag && s__state == 4512bv32)) || (((((!(s__s3__tmp__next_state___0 == 4384bv32) && !(3bv32 == blastFlag)) && s__hit == 0bv32) && s__state == 4400bv32) && !(5bv32 == blastFlag)) && ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms) == 0bv32)) || ((2bv32 == blastFlag && s__hit == 0bv32) && 4432bv32 == s__state)) || ((2bv32 == blastFlag && s__hit == 0bv32) && s__state == 4400bv32)) || ((((!(3bv32 == blastFlag) && s__hit == 0bv32) && s__state == 4528bv32) && !(5bv32 == blastFlag)) && ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms) == 0bv32)) || ((2bv32 == blastFlag && s__hit == 0bv32) && s__state == 3bv32)) || (((2bv32 == blastFlag && s__hit == 0bv32) && s__s3__tmp__next_state___0 == 4560bv32) && s__state == 4352bv32)) || (((s__s3__tmp__next_state___0 == 3bv32 && 2bv32 == blastFlag) && !(s__hit == 0bv32)) && s__state == 4352bv32)) || ((((!(3bv32 == blastFlag) && s__hit == 0bv32) && s__s3__tmp__next_state___0 == 4560bv32) && ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms) == 0bv32) && s__state == 4352bv32)) || ((((!(3bv32 == blastFlag) && s__hit == 0bv32) && !(5bv32 == blastFlag)) && s__state == 4512bv32) && ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms) == 0bv32)) || ((2bv32 == blastFlag && s__hit == 0bv32) && s__state == 4448bv32)) || (1bv32 == blastFlag && s__state == 4384bv32)) || (((!(s__s3__tmp__next_state___0 == 4384bv32) && !(3bv32 == blastFlag)) && s__state == 3bv32) && ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms) == 0bv32)) || ((((!(3bv32 == blastFlag) && s__state == 4496bv32) && s__hit == 0bv32) && !(5bv32 == blastFlag)) && ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms) == 0bv32)) || ((((!(3bv32 == blastFlag) && s__hit == 0bv32) && s__state == 4448bv32) && !(5bv32 == blastFlag)) && ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms) == 0bv32)) || (2bv32 == blastFlag && s__state == 4528bv32) - InvariantResult [Line: 72]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 148]: Loop Invariant Derived loop invariant: ((((((((((((!(s__state == 4368bv32) && !(3bv32 == blastFlag)) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4385bv32)) && !(5bv32 == blastFlag)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms) == 0bv32) && !(s__state == 4099bv32)) && !(s__state == 4384bv32)) || ((((((((((!(s__state == 4368bv32) && 2bv32 == blastFlag) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4385bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) && !(s__state == 4384bv32)) - InvariantResult [Line: 622]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 112]: Loop Invariant Derived loop invariant: (((((((((!(s__state == 4368bv32) && 0bv32 == blastFlag) && !(4432bv32 == s__state)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4385bv32)) && !(s__state == 4400bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) && !(s__state == 4384bv32) - InvariantResult [Line: 154]: Loop Invariant Derived loop invariant: (((((((((((!(s__state == 4368bv32) && 2bv32 == blastFlag) && !(4432bv32 == s__state)) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4385bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) && !(s__state == 4384bv32)) || (((((((((((((!(s__state == 4368bv32) && !(3bv32 == blastFlag)) && !(4432bv32 == s__state)) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4385bv32)) && !(5bv32 == blastFlag)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms) == 0bv32) && !(s__state == 4099bv32)) && !(s__state == 4384bv32)) - InvariantResult [Line: 184]: Loop Invariant Derived loop invariant: ((((((((((((!(s__state == 4368bv32) && 2bv32 == blastFlag) && !(4432bv32 == s__state)) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4385bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) && !(s__state == 4384bv32)) || (((((((((((((!(s__state == 4368bv32) && !(3bv32 == blastFlag)) && !(4432bv32 == s__state)) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4385bv32)) && !(5bv32 == blastFlag)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms) == 0bv32) && !(s__state == 4099bv32)) && !(s__state == 4384bv32))) || (((((((((((!(s__state == 4368bv32) && 2bv32 == blastFlag) && !(4432bv32 == s__state)) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4385bv32)) && !(s__state == 4400bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) && !(s__state == 4384bv32)) - InvariantResult [Line: 160]: Loop Invariant Derived loop invariant: (((((((((((!(s__state == 4368bv32) && 2bv32 == blastFlag) && !(4432bv32 == s__state)) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4385bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) && !(s__state == 4384bv32)) || (((((((((((((!(s__state == 4368bv32) && !(3bv32 == blastFlag)) && !(4432bv32 == s__state)) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4385bv32)) && !(5bv32 == blastFlag)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms) == 0bv32) && !(s__state == 4099bv32)) && !(s__state == 4384bv32)) - InvariantResult [Line: 178]: Loop Invariant Derived loop invariant: (((((((((((!(s__state == 4368bv32) && 2bv32 == blastFlag) && !(4432bv32 == s__state)) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4385bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) && !(s__state == 4384bv32)) || (((((((((((((!(s__state == 4368bv32) && !(3bv32 == blastFlag)) && !(4432bv32 == s__state)) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4385bv32)) && !(5bv32 == blastFlag)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms) == 0bv32) && !(s__state == 4099bv32)) && !(s__state == 4384bv32)) - InvariantResult [Line: 205]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-10-16 02:01:39,457 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bc22cbb-e716-47e1-99f9-539388b413f6/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...