./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0730c.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0730c.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f8c3d6863785ed03feeabfa34c0c11607b9ab236b069ea505eed9d256d26078d --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-02 20:48:47,999 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:48:48,001 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:48:48,051 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:48:48,051 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:48:48,057 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:48:48,059 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:48:48,062 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:48:48,064 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:48:48,068 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:48:48,069 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:48:48,072 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:48:48,072 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:48:48,079 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:48:48,081 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:48:48,082 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:48:48,084 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:48:48,085 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:48:48,087 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:48:48,091 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:48:48,098 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:48:48,100 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:48:48,101 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:48:48,101 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:48:48,105 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:48:48,105 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:48:48,105 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:48:48,106 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:48:48,106 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:48:48,107 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:48:48,108 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:48:48,108 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:48:48,109 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:48:48,110 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:48:48,111 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:48:48,111 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:48:48,111 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:48:48,112 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:48:48,112 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:48:48,113 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:48:48,117 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:48:48,119 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-02 20:48:48,155 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:48:48,155 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:48:48,156 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:48:48,156 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:48:48,157 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:48:48,157 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:48:48,161 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:48:48,161 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:48:48,162 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:48:48,162 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:48:48,163 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:48:48,163 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:48:48,163 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:48:48,163 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:48:48,164 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:48:48,164 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:48:48,164 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:48:48,164 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:48:48,164 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:48:48,164 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:48:48,165 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:48:48,165 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:48:48,165 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:48:48,166 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:48:48,166 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:48:48,166 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:48:48,166 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:48:48,166 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:48:48,167 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:48:48,167 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:48:48,167 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:48:48,167 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:48:48,167 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:48:48,168 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f8c3d6863785ed03feeabfa34c0c11607b9ab236b069ea505eed9d256d26078d [2022-11-02 20:48:48,462 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:48:48,499 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:48:48,502 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:48:48,504 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:48:48,505 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:48:48,507 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/float-newlib/double_req_bl_0730c.c [2022-11-02 20:48:48,570 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/data/928926e40/a3485038da8b4a96b18db3cf4fe44dd4/FLAG739663428 [2022-11-02 20:48:49,087 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:48:49,092 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/sv-benchmarks/c/float-newlib/double_req_bl_0730c.c [2022-11-02 20:48:49,110 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/data/928926e40/a3485038da8b4a96b18db3cf4fe44dd4/FLAG739663428 [2022-11-02 20:48:49,457 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/data/928926e40/a3485038da8b4a96b18db3cf4fe44dd4 [2022-11-02 20:48:49,459 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:48:49,461 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:48:49,463 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:48:49,463 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:48:49,466 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:48:49,466 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:48:49" (1/1) ... [2022-11-02 20:48:49,467 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@747b6076 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:48:49, skipping insertion in model container [2022-11-02 20:48:49,468 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:48:49" (1/1) ... [2022-11-02 20:48:49,475 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:48:49,494 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:48:49,714 WARN L230 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_c7857718-4e50-4133-87ba-493cbcb90aa0/sv-benchmarks/c/float-newlib/double_req_bl_0730c.c[3223,3236] [2022-11-02 20:48:49,717 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:48:49,725 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:48:49,759 WARN L230 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_c7857718-4e50-4133-87ba-493cbcb90aa0/sv-benchmarks/c/float-newlib/double_req_bl_0730c.c[3223,3236] [2022-11-02 20:48:49,760 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:48:49,774 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:48:49,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:48:49 WrapperNode [2022-11-02 20:48:49,775 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:48:49,776 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:48:49,776 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:48:49,776 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:48:49,784 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:48:49" (1/1) ... [2022-11-02 20:48:49,794 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:48:49" (1/1) ... [2022-11-02 20:48:49,846 INFO L138 Inliner]: procedures = 17, calls = 23, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 180 [2022-11-02 20:48:49,846 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:48:49,847 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:48:49,847 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:48:49,848 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:48:49,857 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:48:49" (1/1) ... [2022-11-02 20:48:49,858 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:48:49" (1/1) ... [2022-11-02 20:48:49,876 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:48:49" (1/1) ... [2022-11-02 20:48:49,877 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:48:49" (1/1) ... [2022-11-02 20:48:49,909 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:48:49" (1/1) ... [2022-11-02 20:48:49,925 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:48:49" (1/1) ... [2022-11-02 20:48:49,927 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:48:49" (1/1) ... [2022-11-02 20:48:49,930 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:48:49" (1/1) ... [2022-11-02 20:48:49,934 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:48:49,950 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:48:49,950 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:48:49,950 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:48:49,951 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:48:49" (1/1) ... [2022-11-02 20:48:49,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:48:49,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:48:49,980 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:48:50,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:48:50,025 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:48:50,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:48:50,026 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:48:50,026 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-11-02 20:48:50,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:48:50,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-11-02 20:48:50,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:48:50,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:48:50,027 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 20:48:50,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:48:50,105 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:48:50,107 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:48:50,739 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:48:50,746 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:48:50,746 INFO L300 CfgBuilder]: Removed 10 assume(true) statements. [2022-11-02 20:48:50,748 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:48:50 BoogieIcfgContainer [2022-11-02 20:48:50,748 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:48:50,750 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:48:50,750 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:48:50,754 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:48:50,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:48:49" (1/3) ... [2022-11-02 20:48:50,755 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39761b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:48:50, skipping insertion in model container [2022-11-02 20:48:50,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:48:49" (2/3) ... [2022-11-02 20:48:50,756 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39761b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:48:50, skipping insertion in model container [2022-11-02 20:48:50,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:48:50" (3/3) ... [2022-11-02 20:48:50,757 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0730c.c [2022-11-02 20:48:50,776 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:48:50,776 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-02 20:48:50,845 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:48:50,852 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@54016605, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:48:50,853 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-02 20:48:50,857 INFO L276 IsEmpty]: Start isEmpty. Operand has 53 states, 51 states have (on average 1.6470588235294117) internal successors, (84), 52 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:48:50,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-02 20:48:50,864 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:48:50,865 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:48:50,866 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:48:50,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:48:50,871 INFO L85 PathProgramCache]: Analyzing trace with hash 361085180, now seen corresponding path program 1 times [2022-11-02 20:48:50,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:48:50,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395626011] [2022-11-02 20:48:50,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:48:50,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:48:50,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:48:51,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:48:51,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:48:51,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395626011] [2022-11-02 20:48:51,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395626011] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:48:51,021 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:48:51,022 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:48:51,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683320741] [2022-11-02 20:48:51,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:48:51,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-02 20:48:51,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:48:51,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-02 20:48:51,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-02 20:48:51,069 INFO L87 Difference]: Start difference. First operand has 53 states, 51 states have (on average 1.6470588235294117) internal successors, (84), 52 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:48:51,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:48:51,101 INFO L93 Difference]: Finished difference Result 104 states and 166 transitions. [2022-11-02 20:48:51,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-02 20:48:51,104 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 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 8 [2022-11-02 20:48:51,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:48:51,125 INFO L225 Difference]: With dead ends: 104 [2022-11-02 20:48:51,125 INFO L226 Difference]: Without dead ends: 50 [2022-11-02 20:48:51,128 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-02 20:48:51,136 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:48:51,137 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:48:51,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-11-02 20:48:51,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2022-11-02 20:48:51,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 49 states have (on average 1.4285714285714286) internal successors, (70), 49 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:48:51,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 70 transitions. [2022-11-02 20:48:51,197 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 70 transitions. Word has length 8 [2022-11-02 20:48:51,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:48:51,198 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 70 transitions. [2022-11-02 20:48:51,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:48:51,199 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 70 transitions. [2022-11-02 20:48:51,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-02 20:48:51,200 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:48:51,200 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:48:51,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:48:51,202 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:48:51,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:48:51,203 INFO L85 PathProgramCache]: Analyzing trace with hash 331839487, now seen corresponding path program 1 times [2022-11-02 20:48:51,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:48:51,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940878391] [2022-11-02 20:48:51,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:48:51,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:48:51,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:48:51,286 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:48:51,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:48:51,353 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:48:51,354 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-02 20:48:51,356 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-02 20:48:51,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 20:48:51,363 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-02 20:48:51,367 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-02 20:48:51,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 08:48:51 BoogieIcfgContainer [2022-11-02 20:48:51,406 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-02 20:48:51,407 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-02 20:48:51,407 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-02 20:48:51,408 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-02 20:48:51,408 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:48:50" (3/4) ... [2022-11-02 20:48:51,412 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-02 20:48:51,412 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-02 20:48:51,413 INFO L158 Benchmark]: Toolchain (without parser) took 1952.25ms. Allocated memory is still 104.9MB. Free memory was 68.9MB in the beginning and 51.7MB in the end (delta: 17.3MB). Peak memory consumption was 17.4MB. Max. memory is 16.1GB. [2022-11-02 20:48:51,414 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 104.9MB. Free memory is still 85.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:48:51,415 INFO L158 Benchmark]: CACSL2BoogieTranslator took 312.81ms. Allocated memory is still 104.9MB. Free memory was 68.8MB in the beginning and 77.8MB in the end (delta: -9.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-02 20:48:51,418 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.50ms. Allocated memory is still 104.9MB. Free memory was 77.8MB in the beginning and 74.0MB in the end (delta: 3.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-02 20:48:51,419 INFO L158 Benchmark]: Boogie Preprocessor took 101.71ms. Allocated memory is still 104.9MB. Free memory was 73.6MB in the beginning and 70.8MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-02 20:48:51,422 INFO L158 Benchmark]: RCFGBuilder took 798.86ms. Allocated memory is still 104.9MB. Free memory was 70.8MB in the beginning and 78.8MB in the end (delta: -8.1MB). Peak memory consumption was 39.1MB. Max. memory is 16.1GB. [2022-11-02 20:48:51,423 INFO L158 Benchmark]: TraceAbstraction took 656.12ms. Allocated memory is still 104.9MB. Free memory was 78.5MB in the beginning and 51.7MB in the end (delta: 26.8MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-11-02 20:48:51,423 INFO L158 Benchmark]: Witness Printer took 5.41ms. Allocated memory is still 104.9MB. Free memory is still 51.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:48:51,430 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 104.9MB. Free memory is still 85.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 312.81ms. Allocated memory is still 104.9MB. Free memory was 68.8MB in the beginning and 77.8MB in the end (delta: -9.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.50ms. Allocated memory is still 104.9MB. Free memory was 77.8MB in the beginning and 74.0MB in the end (delta: 3.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 101.71ms. Allocated memory is still 104.9MB. Free memory was 73.6MB in the beginning and 70.8MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 798.86ms. Allocated memory is still 104.9MB. Free memory was 70.8MB in the beginning and 78.8MB in the end (delta: -8.1MB). Peak memory consumption was 39.1MB. Max. memory is 16.1GB. * TraceAbstraction took 656.12ms. Allocated memory is still 104.9MB. Free memory was 78.5MB in the beginning and 51.7MB in the end (delta: 26.8MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Witness Printer took 5.41ms. Allocated memory is still 104.9MB. Free memory is still 51.7MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 156]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 155, overapproximation of someBinaryArithmeticDOUBLEoperation at line 35, overapproximation of bitwiseAnd at line 34. Possible FailurePath: [L19] static const double one_sqrt = 1.0, tiny_sqrt = 1.0e-300; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L151] double x = 0.0; [L152] CALL, EXPR __ieee754_sqrt(x) [L22] double z; [L23] __int32_t sign = 0x80000000; [L24] __uint32_t r, t1, s1, ix1, q1; [L25] __int32_t ix0, s0, q, m, t, i; VAL [\old(x)=0, one_sqrt=1, sign=-2147483648, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=0] [L28] ieee_double_shape_type ew_u; [L29] ew_u.value = (x) [L30] EXPR ew_u.parts.msw [L30] (ix0) = ew_u.parts.msw [L31] EXPR ew_u.parts.lsw [L31] (ix1) = ew_u.parts.lsw [L34] COND TRUE (ix0 & 0x7ff00000) == 0x7ff00000 [L35] return x * x + x; VAL [\old(x)=0, ix0=-1, ix1=4294967296, one_sqrt=1, sign=-2147483648, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=0] [L152] RET, EXPR __ieee754_sqrt(x) [L152] double res = __ieee754_sqrt(x); [L155] EXPR res == 0.0 && __signbit_double(res) == 0 VAL [one_sqrt=1, res=4294967304, res == 0.0 && __signbit_double(res) == 0=0, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=0] [L155] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L156] reach_error() VAL [one_sqrt=1, res=4294967304, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 53 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 73 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 73 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=53occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-02 20:48:51,488 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0730c.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f8c3d6863785ed03feeabfa34c0c11607b9ab236b069ea505eed9d256d26078d --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-02 20:48:53,748 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:48:53,751 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:48:53,797 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:48:53,798 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:48:53,802 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:48:53,804 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:48:53,811 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:48:53,816 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:48:53,824 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:48:53,825 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:48:53,826 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:48:53,826 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:48:53,827 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:48:53,828 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:48:53,829 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:48:53,830 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:48:53,831 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:48:53,833 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:48:53,834 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:48:53,836 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:48:53,843 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:48:53,844 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:48:53,845 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:48:53,848 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:48:53,848 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:48:53,848 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:48:53,849 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:48:53,850 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:48:53,851 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:48:53,851 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:48:53,852 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:48:53,853 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:48:53,853 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:48:53,854 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:48:53,855 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:48:53,855 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:48:53,856 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:48:53,856 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:48:53,857 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:48:53,864 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:48:53,866 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-11-02 20:48:53,907 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:48:53,907 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:48:53,909 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:48:53,909 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:48:53,910 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:48:53,910 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:48:53,912 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:48:53,912 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:48:53,912 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:48:53,912 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:48:53,913 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:48:53,913 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:48:53,914 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:48:53,914 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:48:53,914 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:48:53,914 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:48:53,915 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-02 20:48:53,915 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-02 20:48:53,915 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-02 20:48:53,915 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:48:53,915 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:48:53,915 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:48:53,916 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:48:53,916 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:48:53,916 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:48:53,916 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:48:53,917 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:48:53,917 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:48:53,917 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:48:53,917 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:48:53,917 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-02 20:48:53,918 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-02 20:48:53,918 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:48:53,918 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:48:53,918 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:48:53,919 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-02 20:48:53,919 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_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f8c3d6863785ed03feeabfa34c0c11607b9ab236b069ea505eed9d256d26078d [2022-11-02 20:48:54,336 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:48:54,361 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:48:54,363 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:48:54,365 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:48:54,365 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:48:54,367 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/float-newlib/double_req_bl_0730c.c [2022-11-02 20:48:54,449 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/data/ca538747f/f7a047dd88924aa395a79db397a0e789/FLAGf0ad0afb8 [2022-11-02 20:48:55,005 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:48:55,007 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/sv-benchmarks/c/float-newlib/double_req_bl_0730c.c [2022-11-02 20:48:55,017 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/data/ca538747f/f7a047dd88924aa395a79db397a0e789/FLAGf0ad0afb8 [2022-11-02 20:48:55,449 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/data/ca538747f/f7a047dd88924aa395a79db397a0e789 [2022-11-02 20:48:55,452 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:48:55,454 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:48:55,455 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:48:55,456 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:48:55,459 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:48:55,460 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:48:55" (1/1) ... [2022-11-02 20:48:55,462 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@411a9394 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:48:55, skipping insertion in model container [2022-11-02 20:48:55,462 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:48:55" (1/1) ... [2022-11-02 20:48:55,472 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:48:55,492 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:48:55,743 WARN L230 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_c7857718-4e50-4133-87ba-493cbcb90aa0/sv-benchmarks/c/float-newlib/double_req_bl_0730c.c[3223,3236] [2022-11-02 20:48:55,760 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:48:55,789 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:48:55,854 WARN L230 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_c7857718-4e50-4133-87ba-493cbcb90aa0/sv-benchmarks/c/float-newlib/double_req_bl_0730c.c[3223,3236] [2022-11-02 20:48:55,855 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:48:55,872 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:48:55,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:48:55 WrapperNode [2022-11-02 20:48:55,872 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:48:55,873 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:48:55,874 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:48:55,874 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:48:55,881 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:48:55" (1/1) ... [2022-11-02 20:48:55,904 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:48:55" (1/1) ... [2022-11-02 20:48:55,944 INFO L138 Inliner]: procedures = 20, calls = 23, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 180 [2022-11-02 20:48:55,946 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:48:55,947 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:48:55,947 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:48:55,947 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:48:55,957 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:48:55" (1/1) ... [2022-11-02 20:48:55,957 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:48:55" (1/1) ... [2022-11-02 20:48:55,978 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:48:55" (1/1) ... [2022-11-02 20:48:55,978 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:48:55" (1/1) ... [2022-11-02 20:48:55,987 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:48:55" (1/1) ... [2022-11-02 20:48:56,006 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:48:55" (1/1) ... [2022-11-02 20:48:56,010 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:48:55" (1/1) ... [2022-11-02 20:48:56,012 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:48:55" (1/1) ... [2022-11-02 20:48:56,025 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:48:56,026 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:48:56,026 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:48:56,026 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:48:56,027 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:48:55" (1/1) ... [2022-11-02 20:48:56,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:48:56,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:48:56,055 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:48:56,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:48:56,104 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:48:56,105 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2022-11-02 20:48:56,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2022-11-02 20:48:56,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-02 20:48:56,105 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:48:56,105 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-02 20:48:56,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:48:56,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:48:56,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-02 20:48:56,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:48:56,218 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:48:56,220 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:48:59,472 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:48:59,479 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:48:59,480 INFO L300 CfgBuilder]: Removed 10 assume(true) statements. [2022-11-02 20:48:59,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:48:59 BoogieIcfgContainer [2022-11-02 20:48:59,482 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:48:59,484 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:48:59,484 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:48:59,487 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:48:59,488 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:48:55" (1/3) ... [2022-11-02 20:48:59,488 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46638e31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:48:59, skipping insertion in model container [2022-11-02 20:48:59,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:48:55" (2/3) ... [2022-11-02 20:48:59,489 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46638e31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:48:59, skipping insertion in model container [2022-11-02 20:48:59,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:48:59" (3/3) ... [2022-11-02 20:48:59,491 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0730c.c [2022-11-02 20:48:59,509 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:48:59,510 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-02 20:48:59,559 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:48:59,568 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3fe57ab2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:48:59,569 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-02 20:48:59,573 INFO L276 IsEmpty]: Start isEmpty. Operand has 53 states, 51 states have (on average 1.6470588235294117) internal successors, (84), 52 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:48:59,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-02 20:48:59,582 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:48:59,582 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:48:59,583 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:48:59,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:48:59,591 INFO L85 PathProgramCache]: Analyzing trace with hash 361085180, now seen corresponding path program 1 times [2022-11-02 20:48:59,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:48:59,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1148182272] [2022-11-02 20:48:59,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:48:59,606 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:48:59,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:48:59,613 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:48:59,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-02 20:49:00,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:49:00,101 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-02 20:49:00,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:49:00,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:49:00,129 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:49:00,130 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:49:00,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1148182272] [2022-11-02 20:49:00,132 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1148182272] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:49:00,132 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:49:00,133 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:49:00,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683486331] [2022-11-02 20:49:00,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:49:00,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-02 20:49:00,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:49:00,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-02 20:49:00,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-02 20:49:00,188 INFO L87 Difference]: Start difference. First operand has 53 states, 51 states have (on average 1.6470588235294117) internal successors, (84), 52 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:49:00,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:49:00,218 INFO L93 Difference]: Finished difference Result 104 states and 166 transitions. [2022-11-02 20:49:00,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-02 20:49:00,221 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 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 8 [2022-11-02 20:49:00,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:49:00,230 INFO L225 Difference]: With dead ends: 104 [2022-11-02 20:49:00,230 INFO L226 Difference]: Without dead ends: 50 [2022-11-02 20:49:00,233 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-02 20:49:00,237 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:49:00,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:49:00,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-11-02 20:49:00,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2022-11-02 20:49:00,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 49 states have (on average 1.4285714285714286) internal successors, (70), 49 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:49:00,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 70 transitions. [2022-11-02 20:49:00,276 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 70 transitions. Word has length 8 [2022-11-02 20:49:00,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:49:00,277 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 70 transitions. [2022-11-02 20:49:00,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:49:00,278 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 70 transitions. [2022-11-02 20:49:00,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-02 20:49:00,278 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:49:00,279 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:49:00,298 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-11-02 20:49:00,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:49:00,498 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:49:00,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:49:00,499 INFO L85 PathProgramCache]: Analyzing trace with hash 331839487, now seen corresponding path program 1 times [2022-11-02 20:49:00,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:49:00,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [918971553] [2022-11-02 20:49:00,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:49:00,500 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:49:00,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:49:00,502 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:49:00,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-02 20:49:00,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:49:00,933 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-02 20:49:00,936 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:49:01,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:49:01,150 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:49:01,150 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:49:01,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [918971553] [2022-11-02 20:49:01,151 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [918971553] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:49:01,151 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:49:01,151 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:49:01,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250841523] [2022-11-02 20:49:01,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:49:01,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:49:01,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:49:01,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:49:01,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:49:01,155 INFO L87 Difference]: Start difference. First operand 50 states and 70 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:49:02,261 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-02 20:49:02,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:49:02,268 INFO L93 Difference]: Finished difference Result 59 states and 79 transitions. [2022-11-02 20:49:02,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 20:49:02,446 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 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 9 [2022-11-02 20:49:02,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:49:02,447 INFO L225 Difference]: With dead ends: 59 [2022-11-02 20:49:02,447 INFO L226 Difference]: Without dead ends: 50 [2022-11-02 20:49:02,448 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:49:02,449 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 2 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 30 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:49:02,450 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 167 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 30 Unchecked, 1.0s Time] [2022-11-02 20:49:02,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-11-02 20:49:02,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2022-11-02 20:49:02,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 49 states have (on average 1.4081632653061225) internal successors, (69), 49 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:49:02,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 69 transitions. [2022-11-02 20:49:02,457 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 69 transitions. Word has length 9 [2022-11-02 20:49:02,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:49:02,458 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 69 transitions. [2022-11-02 20:49:02,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:49:02,458 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 69 transitions. [2022-11-02 20:49:02,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-02 20:49:02,461 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:49:02,461 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:49:02,486 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-11-02 20:49:02,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:49:02,678 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:49:02,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:49:02,679 INFO L85 PathProgramCache]: Analyzing trace with hash -1929218748, now seen corresponding path program 1 times [2022-11-02 20:49:02,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:49:02,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [571137113] [2022-11-02 20:49:02,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:49:02,679 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:49:02,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:49:02,682 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:49:02,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-02 20:49:02,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:49:02,765 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-02 20:49:02,766 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:49:03,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:49:03,023 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:49:03,024 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:49:03,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [571137113] [2022-11-02 20:49:03,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [571137113] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:49:03,024 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:49:03,024 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:49:03,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233504948] [2022-11-02 20:49:03,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:49:03,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:49:03,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:49:03,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:49:03,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:49:03,027 INFO L87 Difference]: Start difference. First operand 50 states and 69 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:49:04,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:49:04,383 INFO L93 Difference]: Finished difference Result 62 states and 80 transitions. [2022-11-02 20:49:04,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:49:04,384 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 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 11 [2022-11-02 20:49:04,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:49:04,385 INFO L225 Difference]: With dead ends: 62 [2022-11-02 20:49:04,385 INFO L226 Difference]: Without dead ends: 59 [2022-11-02 20:49:04,386 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-02 20:49:04,387 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 84 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:49:04,388 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 188 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-02 20:49:04,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-11-02 20:49:04,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 52. [2022-11-02 20:49:04,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 51 states have (on average 1.392156862745098) internal successors, (71), 51 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:49:04,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 71 transitions. [2022-11-02 20:49:04,402 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 71 transitions. Word has length 11 [2022-11-02 20:49:04,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:49:04,403 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 71 transitions. [2022-11-02 20:49:04,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:49:04,403 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 71 transitions. [2022-11-02 20:49:04,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-02 20:49:04,404 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:49:04,404 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:49:04,425 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-02 20:49:04,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:49:04,605 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:49:04,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:49:04,605 INFO L85 PathProgramCache]: Analyzing trace with hash 239121058, now seen corresponding path program 1 times [2022-11-02 20:49:04,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:49:04,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1318432990] [2022-11-02 20:49:04,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:49:04,606 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:49:04,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:49:04,607 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:49:04,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-02 20:49:05,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:49:05,510 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-02 20:49:05,513 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:49:05,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:49:05,768 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:49:05,768 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:49:05,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1318432990] [2022-11-02 20:49:05,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1318432990] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:49:05,769 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:49:05,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:49:05,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046342635] [2022-11-02 20:49:05,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:49:05,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:49:05,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:49:05,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:49:05,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:49:05,772 INFO L87 Difference]: Start difference. First operand 52 states and 71 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:49:05,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:49:05,843 INFO L93 Difference]: Finished difference Result 61 states and 80 transitions. [2022-11-02 20:49:05,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:49:05,844 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-02 20:49:05,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:49:05,845 INFO L225 Difference]: With dead ends: 61 [2022-11-02 20:49:05,845 INFO L226 Difference]: Without dead ends: 52 [2022-11-02 20:49:05,845 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:49:05,847 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 2 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 29 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:49:05,847 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 157 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 29 Unchecked, 0.0s Time] [2022-11-02 20:49:05,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-11-02 20:49:05,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2022-11-02 20:49:05,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 51 states have (on average 1.3725490196078431) internal successors, (70), 51 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:49:05,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 70 transitions. [2022-11-02 20:49:05,854 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 70 transitions. Word has length 12 [2022-11-02 20:49:05,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:49:05,855 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 70 transitions. [2022-11-02 20:49:05,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:49:05,855 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 70 transitions. [2022-11-02 20:49:05,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-02 20:49:05,856 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:49:05,856 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:49:05,900 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-02 20:49:06,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:49:06,082 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:49:06,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:49:06,082 INFO L85 PathProgramCache]: Analyzing trace with hash 264903321, now seen corresponding path program 1 times [2022-11-02 20:49:06,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:49:06,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [338385012] [2022-11-02 20:49:06,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:49:06,083 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:49:06,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:49:06,084 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:49:06,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-02 20:49:06,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:49:06,198 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-02 20:49:06,200 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:49:06,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:49:06,884 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:49:06,885 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:49:06,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [338385012] [2022-11-02 20:49:06,885 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [338385012] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:49:06,885 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:49:06,885 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-02 20:49:06,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258619926] [2022-11-02 20:49:06,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:49:06,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 20:49:06,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:49:06,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 20:49:06,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:49:06,887 INFO L87 Difference]: Start difference. First operand 52 states and 70 transitions. Second operand has 9 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 9 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:49:07,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:49:07,792 INFO L93 Difference]: Finished difference Result 62 states and 78 transitions. [2022-11-02 20:49:07,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-02 20:49:07,793 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 9 states have internal predecessors, (15), 0 states have call successors, (0), 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 15 [2022-11-02 20:49:07,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:49:07,793 INFO L225 Difference]: With dead ends: 62 [2022-11-02 20:49:07,793 INFO L226 Difference]: Without dead ends: 53 [2022-11-02 20:49:07,794 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2022-11-02 20:49:07,798 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 79 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 8 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-02 20:49:07,799 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 428 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 37 Invalid, 0 Unknown, 8 Unchecked, 0.3s Time] [2022-11-02 20:49:07,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-11-02 20:49:07,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 50. [2022-11-02 20:49:07,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 49 states have (on average 1.3673469387755102) internal successors, (67), 49 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:49:07,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 67 transitions. [2022-11-02 20:49:07,804 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 67 transitions. Word has length 15 [2022-11-02 20:49:07,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:49:07,804 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 67 transitions. [2022-11-02 20:49:07,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 9 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:49:07,805 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 67 transitions. [2022-11-02 20:49:07,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-02 20:49:07,808 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:49:07,808 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:49:07,821 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-02 20:49:08,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:49:08,009 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:49:08,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:49:08,009 INFO L85 PathProgramCache]: Analyzing trace with hash -677910631, now seen corresponding path program 1 times [2022-11-02 20:49:08,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:49:08,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [579993293] [2022-11-02 20:49:08,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:49:08,010 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:49:08,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:49:08,011 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:49:08,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-02 20:49:08,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:49:08,108 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-02 20:49:08,111 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:49:08,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:49:08,309 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:49:08,310 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:49:08,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [579993293] [2022-11-02 20:49:08,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [579993293] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:49:08,310 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:49:08,311 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:49:08,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536094520] [2022-11-02 20:49:08,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:49:08,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:49:08,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:49:08,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:49:08,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:49:08,313 INFO L87 Difference]: Start difference. First operand 50 states and 67 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:49:08,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:49:08,382 INFO L93 Difference]: Finished difference Result 92 states and 125 transitions. [2022-11-02 20:49:08,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:49:08,383 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-11-02 20:49:08,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:49:08,384 INFO L225 Difference]: With dead ends: 92 [2022-11-02 20:49:08,384 INFO L226 Difference]: Without dead ends: 50 [2022-11-02 20:49:08,384 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:49:08,385 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 2 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 27 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:49:08,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 161 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 27 Unchecked, 0.0s Time] [2022-11-02 20:49:08,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-11-02 20:49:08,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2022-11-02 20:49:08,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 49 states have (on average 1.346938775510204) internal successors, (66), 49 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:49:08,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 66 transitions. [2022-11-02 20:49:08,392 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 66 transitions. Word has length 25 [2022-11-02 20:49:08,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:49:08,392 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 66 transitions. [2022-11-02 20:49:08,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:49:08,393 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 66 transitions. [2022-11-02 20:49:08,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-02 20:49:08,393 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:49:08,394 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:49:08,414 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-02 20:49:08,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:49:08,609 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:49:08,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:49:08,609 INFO L85 PathProgramCache]: Analyzing trace with hash 1807617568, now seen corresponding path program 1 times [2022-11-02 20:49:08,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:49:08,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1007267434] [2022-11-02 20:49:08,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:49:08,610 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:49:08,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:49:08,616 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:49:08,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-02 20:49:08,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:49:08,744 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-02 20:49:08,747 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:49:09,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:49:09,152 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:49:09,152 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:49:09,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1007267434] [2022-11-02 20:49:09,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1007267434] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:49:09,153 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:49:09,153 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:49:09,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641897414] [2022-11-02 20:49:09,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:49:09,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:49:09,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:49:09,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:49:09,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:49:09,155 INFO L87 Difference]: Start difference. First operand 50 states and 66 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:49:09,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:49:09,219 INFO L93 Difference]: Finished difference Result 85 states and 114 transitions. [2022-11-02 20:49:09,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:49:09,219 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-11-02 20:49:09,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:49:09,220 INFO L225 Difference]: With dead ends: 85 [2022-11-02 20:49:09,220 INFO L226 Difference]: Without dead ends: 50 [2022-11-02 20:49:09,221 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:49:09,222 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 2 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 37 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:49:09,223 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 199 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 37 Unchecked, 0.0s Time] [2022-11-02 20:49:09,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-11-02 20:49:09,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2022-11-02 20:49:09,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 49 states have (on average 1.3265306122448979) internal successors, (65), 49 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:49:09,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 65 transitions. [2022-11-02 20:49:09,228 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 65 transitions. Word has length 27 [2022-11-02 20:49:09,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:49:09,229 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 65 transitions. [2022-11-02 20:49:09,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:49:09,229 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 65 transitions. [2022-11-02 20:49:09,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-02 20:49:09,230 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:49:09,230 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:49:09,250 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-02 20:49:09,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:49:09,445 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:49:09,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:49:09,447 INFO L85 PathProgramCache]: Analyzing trace with hash 1380172751, now seen corresponding path program 1 times [2022-11-02 20:49:09,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:49:09,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [550364763] [2022-11-02 20:49:09,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:49:09,448 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:49:09,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:49:09,449 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:49:09,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-02 20:49:09,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:49:09,569 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-02 20:49:09,571 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:49:09,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:49:09,934 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:49:09,934 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:49:09,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [550364763] [2022-11-02 20:49:09,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [550364763] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:49:09,935 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:49:09,935 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:49:09,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766307380] [2022-11-02 20:49:09,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:49:09,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:49:09,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:49:09,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:49:09,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:49:09,937 INFO L87 Difference]: Start difference. First operand 50 states and 65 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:49:10,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:49:10,000 INFO L93 Difference]: Finished difference Result 90 states and 120 transitions. [2022-11-02 20:49:10,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:49:10,001 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-02 20:49:10,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:49:10,002 INFO L225 Difference]: With dead ends: 90 [2022-11-02 20:49:10,002 INFO L226 Difference]: Without dead ends: 51 [2022-11-02 20:49:10,003 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:49:10,005 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 2 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 27 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:49:10,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 149 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 27 Unchecked, 0.0s Time] [2022-11-02 20:49:10,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-11-02 20:49:10,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2022-11-02 20:49:10,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 50 states have (on average 1.32) internal successors, (66), 50 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:49:10,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 66 transitions. [2022-11-02 20:49:10,012 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 66 transitions. Word has length 31 [2022-11-02 20:49:10,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:49:10,012 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 66 transitions. [2022-11-02 20:49:10,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:49:10,013 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 66 transitions. [2022-11-02 20:49:10,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-02 20:49:10,014 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:49:10,014 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:49:10,033 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-02 20:49:10,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:49:10,234 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:49:10,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:49:10,234 INFO L85 PathProgramCache]: Analyzing trace with hash 1685732611, now seen corresponding path program 1 times [2022-11-02 20:49:10,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:49:10,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [886411288] [2022-11-02 20:49:10,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:49:10,235 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:49:10,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:49:10,236 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:49:10,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-02 20:49:10,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:49:10,362 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 20:49:10,363 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:49:10,403 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-02 20:49:10,403 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:49:10,403 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:49:10,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [886411288] [2022-11-02 20:49:10,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [886411288] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:49:10,404 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:49:10,404 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:49:10,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391020507] [2022-11-02 20:49:10,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:49:10,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:49:10,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:49:10,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:49:10,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:49:10,405 INFO L87 Difference]: Start difference. First operand 51 states and 66 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:49:10,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:49:10,523 INFO L93 Difference]: Finished difference Result 83 states and 110 transitions. [2022-11-02 20:49:10,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:49:10,524 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-02 20:49:10,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:49:10,525 INFO L225 Difference]: With dead ends: 83 [2022-11-02 20:49:10,525 INFO L226 Difference]: Without dead ends: 54 [2022-11-02 20:49:10,526 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:49:10,527 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 3 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:49:10,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 115 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 20:49:10,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-11-02 20:49:10,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 52. [2022-11-02 20:49:10,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 51 states have (on average 1.3137254901960784) internal successors, (67), 51 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:49:10,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 67 transitions. [2022-11-02 20:49:10,532 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 67 transitions. Word has length 32 [2022-11-02 20:49:10,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:49:10,532 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 67 transitions. [2022-11-02 20:49:10,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:49:10,532 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 67 transitions. [2022-11-02 20:49:10,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-02 20:49:10,537 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:49:10,538 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:49:10,553 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (10)] Ended with exit code 0 [2022-11-02 20:49:10,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:49:10,753 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:49:10,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:49:10,754 INFO L85 PathProgramCache]: Analyzing trace with hash 1622546113, now seen corresponding path program 1 times [2022-11-02 20:49:10,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:49:10,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [460158177] [2022-11-02 20:49:10,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:49:10,754 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:49:10,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:49:10,756 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:49:10,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-02 20:49:10,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:49:10,875 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-02 20:49:10,877 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:49:10,975 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-02 20:49:10,975 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:49:11,128 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-02 20:49:11,129 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:49:11,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [460158177] [2022-11-02 20:49:11,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [460158177] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:49:11,129 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-02 20:49:11,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2022-11-02 20:49:11,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336337971] [2022-11-02 20:49:11,129 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-02 20:49:11,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:49:11,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:49:11,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:49:11,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:49:11,131 INFO L87 Difference]: Start difference. First operand 52 states and 67 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:49:11,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:49:11,363 INFO L93 Difference]: Finished difference Result 90 states and 121 transitions. [2022-11-02 20:49:11,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:49:11,364 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 0 states have call successors, (0), 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 35 [2022-11-02 20:49:11,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:49:11,365 INFO L225 Difference]: With dead ends: 90 [2022-11-02 20:49:11,365 INFO L226 Difference]: Without dead ends: 61 [2022-11-02 20:49:11,365 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:49:11,366 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 24 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:49:11,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 161 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 20:49:11,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-11-02 20:49:11,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2022-11-02 20:49:11,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 60 states have (on average 1.3166666666666667) internal successors, (79), 60 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:49:11,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 79 transitions. [2022-11-02 20:49:11,373 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 79 transitions. Word has length 35 [2022-11-02 20:49:11,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:49:11,374 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 79 transitions. [2022-11-02 20:49:11,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:49:11,374 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 79 transitions. [2022-11-02 20:49:11,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-02 20:49:11,376 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:49:11,376 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:49:11,398 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-11-02 20:49:11,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:49:11,593 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:49:11,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:49:11,593 INFO L85 PathProgramCache]: Analyzing trace with hash 1312115587, now seen corresponding path program 2 times [2022-11-02 20:49:11,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:49:11,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1881832792] [2022-11-02 20:49:11,594 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-02 20:49:11,594 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:49:11,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:49:11,595 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:49:11,601 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-11-02 20:49:11,706 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-02 20:49:11,706 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:49:11,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-02 20:49:11,714 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:49:12,106 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-11-02 20:49:12,106 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:49:12,107 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:49:12,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1881832792] [2022-11-02 20:49:12,107 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1881832792] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:49:12,107 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:49:12,107 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:49:12,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543071125] [2022-11-02 20:49:12,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:49:12,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:49:12,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:49:12,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:49:12,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:49:12,109 INFO L87 Difference]: Start difference. First operand 61 states and 79 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:49:12,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:49:12,378 INFO L93 Difference]: Finished difference Result 89 states and 117 transitions. [2022-11-02 20:49:12,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 20:49:12,380 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 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 44 [2022-11-02 20:49:12,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:49:12,381 INFO L225 Difference]: With dead ends: 89 [2022-11-02 20:49:12,381 INFO L226 Difference]: Without dead ends: 68 [2022-11-02 20:49:12,381 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:49:12,382 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 61 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:49:12,382 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 102 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 20:49:12,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2022-11-02 20:49:12,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 62. [2022-11-02 20:49:12,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 61 states have (on average 1.3114754098360655) internal successors, (80), 61 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:49:12,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 80 transitions. [2022-11-02 20:49:12,390 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 80 transitions. Word has length 44 [2022-11-02 20:49:12,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:49:12,391 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 80 transitions. [2022-11-02 20:49:12,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:49:12,391 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 80 transitions. [2022-11-02 20:49:12,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-11-02 20:49:12,392 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:49:12,393 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:49:12,418 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-11-02 20:49:12,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:49:12,609 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:49:12,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:49:12,609 INFO L85 PathProgramCache]: Analyzing trace with hash -84795879, now seen corresponding path program 1 times [2022-11-02 20:49:12,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:49:12,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [859431826] [2022-11-02 20:49:12,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:49:12,610 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:49:12,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:49:12,611 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:49:12,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-02 20:49:12,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:49:12,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-02 20:49:12,779 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:49:13,121 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-02 20:49:13,122 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:49:13,553 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-02 20:49:13,554 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:49:13,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [859431826] [2022-11-02 20:49:13,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [859431826] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:49:13,554 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-02 20:49:13,554 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2022-11-02 20:49:13,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546498366] [2022-11-02 20:49:13,555 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-02 20:49:13,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-02 20:49:13,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:49:13,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-02 20:49:13,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=76, Unknown=0, NotChecked=0, Total=132 [2022-11-02 20:49:13,556 INFO L87 Difference]: Start difference. First operand 62 states and 80 transitions. Second operand has 12 states, 12 states have (on average 5.083333333333333) internal successors, (61), 12 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) [2022-11-02 20:49:14,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:49:14,297 INFO L93 Difference]: Finished difference Result 110 states and 150 transitions. [2022-11-02 20:49:14,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-02 20:49:14,298 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.083333333333333) internal successors, (61), 12 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 47 [2022-11-02 20:49:14,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:49:14,299 INFO L225 Difference]: With dead ends: 110 [2022-11-02 20:49:14,299 INFO L226 Difference]: Without dead ends: 80 [2022-11-02 20:49:14,299 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=56, Invalid=76, Unknown=0, NotChecked=0, Total=132 [2022-11-02 20:49:14,300 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 53 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-02 20:49:14,300 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 169 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-02 20:49:14,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2022-11-02 20:49:14,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2022-11-02 20:49:14,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 79 states have (on average 1.3164556962025316) internal successors, (104), 79 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) [2022-11-02 20:49:14,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 104 transitions. [2022-11-02 20:49:14,320 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 104 transitions. Word has length 47 [2022-11-02 20:49:14,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:49:14,322 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 104 transitions. [2022-11-02 20:49:14,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.083333333333333) internal successors, (61), 12 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) [2022-11-02 20:49:14,323 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 104 transitions. [2022-11-02 20:49:14,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-11-02 20:49:14,326 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:49:14,327 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:49:14,348 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-11-02 20:49:14,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:49:14,529 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:49:14,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:49:14,530 INFO L85 PathProgramCache]: Analyzing trace with hash -508626855, now seen corresponding path program 2 times [2022-11-02 20:49:14,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:49:14,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1740846747] [2022-11-02 20:49:14,530 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-02 20:49:14,531 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:49:14,531 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:49:14,532 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:49:14,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-11-02 20:49:14,662 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-02 20:49:14,663 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:49:14,669 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-02 20:49:14,672 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:49:15,033 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2022-11-02 20:49:15,033 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:49:15,033 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:49:15,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1740846747] [2022-11-02 20:49:15,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1740846747] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:49:15,034 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:49:15,034 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:49:15,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817744935] [2022-11-02 20:49:15,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:49:15,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:49:15,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:49:15,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:49:15,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:49:15,036 INFO L87 Difference]: Start difference. First operand 80 states and 104 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 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) [2022-11-02 20:49:15,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:49:15,116 INFO L93 Difference]: Finished difference Result 80 states and 104 transitions. [2022-11-02 20:49:15,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:49:15,116 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 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 65 [2022-11-02 20:49:15,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:49:15,117 INFO L225 Difference]: With dead ends: 80 [2022-11-02 20:49:15,117 INFO L226 Difference]: Without dead ends: 0 [2022-11-02 20:49:15,117 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:49:15,118 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 2 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 3 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:49:15,118 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 5 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 3 Unchecked, 0.0s Time] [2022-11-02 20:49:15,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-02 20:49:15,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-02 20:49:15,119 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) [2022-11-02 20:49:15,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-02 20:49:15,119 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 65 [2022-11-02 20:49:15,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:49:15,120 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-02 20:49:15,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 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) [2022-11-02 20:49:15,120 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-02 20:49:15,120 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-02 20:49:15,124 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-02 20:49:15,152 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-11-02 20:49:15,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:49:15,337 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-02 20:49:15,729 INFO L899 garLoopResultBuilder]: For program point L60(lines 60 63) no Hoare annotation was computed. [2022-11-02 20:49:15,730 INFO L899 garLoopResultBuilder]: For program point L27-1(lines 27 32) no Hoare annotation was computed. [2022-11-02 20:49:15,730 INFO L899 garLoopResultBuilder]: For program point L60-2(lines 60 63) no Hoare annotation was computed. [2022-11-02 20:49:15,730 INFO L895 garLoopResultBuilder]: At program point L27-2(lines 27 32) the Hoare annotation is: (and (= |ULTIMATE.start___ieee754_sqrt_~sign~0#1| (_ bv2147483648 32)) (= (_ +zero 11 53) |ULTIMATE.start___ieee754_sqrt_~x#1|)) [2022-11-02 20:49:15,730 INFO L899 garLoopResultBuilder]: For program point L27-3(lines 21 129) no Hoare annotation was computed. [2022-11-02 20:49:15,730 INFO L899 garLoopResultBuilder]: For program point L52-2(lines 52 53) no Hoare annotation was computed. [2022-11-02 20:49:15,730 INFO L895 garLoopResultBuilder]: At program point L52-3(lines 52 53) the Hoare annotation is: false [2022-11-02 20:49:15,730 INFO L899 garLoopResultBuilder]: For program point L52-4(lines 52 53) no Hoare annotation was computed. [2022-11-02 20:49:15,730 INFO L899 garLoopResultBuilder]: For program point L110(lines 110 111) no Hoare annotation was computed. [2022-11-02 20:49:15,731 INFO L899 garLoopResultBuilder]: For program point L110-2(lines 110 111) no Hoare annotation was computed. [2022-11-02 20:49:15,731 INFO L899 garLoopResultBuilder]: For program point L102(lines 102 116) no Hoare annotation was computed. [2022-11-02 20:49:15,731 INFO L902 garLoopResultBuilder]: At program point L160(lines 143 161) the Hoare annotation is: true [2022-11-02 20:49:15,731 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-02 20:49:15,731 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-02 20:49:15,731 INFO L899 garLoopResultBuilder]: For program point L119(lines 119 120) no Hoare annotation was computed. [2022-11-02 20:49:15,731 INFO L899 garLoopResultBuilder]: For program point L119-2(lines 119 120) no Hoare annotation was computed. [2022-11-02 20:49:15,731 INFO L895 garLoopResultBuilder]: At program point L128(lines 21 129) the Hoare annotation is: (and (= (_ +zero 11 53) |ULTIMATE.start___ieee754_sqrt_~x#1|) (= (_ +zero 11 53) |ULTIMATE.start___ieee754_sqrt_#res#1|)) [2022-11-02 20:49:15,731 INFO L899 garLoopResultBuilder]: For program point L87(lines 87 96) no Hoare annotation was computed. [2022-11-02 20:49:15,731 INFO L899 garLoopResultBuilder]: For program point L87-2(lines 87 96) no Hoare annotation was computed. [2022-11-02 20:49:15,732 INFO L899 garLoopResultBuilder]: For program point L46(lines 46 57) no Hoare annotation was computed. [2022-11-02 20:49:15,732 INFO L899 garLoopResultBuilder]: For program point L46-2(lines 46 57) no Hoare annotation was computed. [2022-11-02 20:49:15,732 INFO L899 garLoopResultBuilder]: For program point L104(lines 104 115) no Hoare annotation was computed. [2022-11-02 20:49:15,732 INFO L899 garLoopResultBuilder]: For program point L38(lines 38 43) no Hoare annotation was computed. [2022-11-02 20:49:15,732 INFO L895 garLoopResultBuilder]: At program point L71-2(lines 71 81) the Hoare annotation is: false [2022-11-02 20:49:15,733 INFO L899 garLoopResultBuilder]: For program point L38-2(lines 38 43) no Hoare annotation was computed. [2022-11-02 20:49:15,733 INFO L899 garLoopResultBuilder]: For program point L71-3(lines 71 81) no Hoare annotation was computed. [2022-11-02 20:49:15,733 INFO L895 garLoopResultBuilder]: At program point L47-2(lines 47 51) the Hoare annotation is: false [2022-11-02 20:49:15,733 INFO L899 garLoopResultBuilder]: For program point L47-3(lines 47 51) no Hoare annotation was computed. [2022-11-02 20:49:15,733 INFO L899 garLoopResultBuilder]: For program point L39(lines 39 42) no Hoare annotation was computed. [2022-11-02 20:49:15,733 INFO L899 garLoopResultBuilder]: For program point L155(line 155) no Hoare annotation was computed. [2022-11-02 20:49:15,734 INFO L899 garLoopResultBuilder]: For program point L89(lines 89 90) no Hoare annotation was computed. [2022-11-02 20:49:15,734 INFO L899 garLoopResultBuilder]: For program point L122-1(lines 122 127) no Hoare annotation was computed. [2022-11-02 20:49:15,734 INFO L899 garLoopResultBuilder]: For program point L155-2(lines 155 158) no Hoare annotation was computed. [2022-11-02 20:49:15,734 INFO L895 garLoopResultBuilder]: At program point L122-2(lines 122 127) the Hoare annotation is: false [2022-11-02 20:49:15,734 INFO L899 garLoopResultBuilder]: For program point L89-2(lines 89 90) no Hoare annotation was computed. [2022-11-02 20:49:15,734 INFO L899 garLoopResultBuilder]: For program point L122-3(lines 122 127) no Hoare annotation was computed. [2022-11-02 20:49:15,735 INFO L899 garLoopResultBuilder]: For program point L106(lines 106 114) no Hoare annotation was computed. [2022-11-02 20:49:15,735 INFO L899 garLoopResultBuilder]: For program point L73(lines 73 77) no Hoare annotation was computed. [2022-11-02 20:49:15,735 INFO L899 garLoopResultBuilder]: For program point L73-2(lines 73 77) no Hoare annotation was computed. [2022-11-02 20:49:15,735 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-02 20:49:15,735 INFO L899 garLoopResultBuilder]: For program point L156(line 156) no Hoare annotation was computed. [2022-11-02 20:49:15,735 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 156) no Hoare annotation was computed. [2022-11-02 20:49:15,736 INFO L895 garLoopResultBuilder]: At program point L140(lines 131 141) the Hoare annotation is: (and (= (_ +zero 11 53) |ULTIMATE.start___ieee754_sqrt_~x#1|) |ULTIMATE.start_main_#t~short11#1| (= (_ bv0 32) |ULTIMATE.start___signbit_double_#res#1|)) [2022-11-02 20:49:15,736 INFO L899 garLoopResultBuilder]: For program point L41(lines 41 42) no Hoare annotation was computed. [2022-11-02 20:49:15,736 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-02 20:49:15,736 INFO L899 garLoopResultBuilder]: For program point L92(lines 92 93) no Hoare annotation was computed. [2022-11-02 20:49:15,736 INFO L899 garLoopResultBuilder]: For program point L92-2(lines 92 93) no Hoare annotation was computed. [2022-11-02 20:49:15,737 INFO L895 garLoopResultBuilder]: At program point L84-2(lines 84 100) the Hoare annotation is: false [2022-11-02 20:49:15,737 INFO L899 garLoopResultBuilder]: For program point L84-3(lines 21 129) no Hoare annotation was computed. [2022-11-02 20:49:15,737 INFO L899 garLoopResultBuilder]: For program point L109(lines 109 114) no Hoare annotation was computed. [2022-11-02 20:49:15,737 INFO L899 garLoopResultBuilder]: For program point L134-1(lines 134 138) no Hoare annotation was computed. [2022-11-02 20:49:15,737 INFO L895 garLoopResultBuilder]: At program point L134-2(lines 134 138) the Hoare annotation is: (and (= (_ +zero 11 53) |ULTIMATE.start___ieee754_sqrt_~x#1|) |ULTIMATE.start_main_#t~short11#1| (= |ULTIMATE.start_main_~res~0#1| (_ +zero 11 53)) (= (_ +zero 11 53) |ULTIMATE.start___ieee754_sqrt_#res#1|) (= (_ +zero 11 53) |ULTIMATE.start___signbit_double_~x#1|)) [2022-11-02 20:49:15,738 INFO L899 garLoopResultBuilder]: For program point L134-3(lines 134 138) no Hoare annotation was computed. [2022-11-02 20:49:15,742 INFO L444 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:49:15,744 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-02 20:49:15,759 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 08:49:15 BoogieIcfgContainer [2022-11-02 20:49:15,759 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-02 20:49:15,759 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-02 20:49:15,760 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-02 20:49:15,760 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-02 20:49:15,760 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:48:59" (3/4) ... [2022-11-02 20:49:15,763 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-02 20:49:15,774 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2022-11-02 20:49:15,774 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-02 20:49:15,775 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-02 20:49:15,775 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-02 20:49:15,799 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ~Pluszero~LONGDOUBLE() == x && ~Pluszero~LONGDOUBLE() == \result [2022-11-02 20:49:15,800 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((~Pluszero~LONGDOUBLE() == x && aux-res == 0.0 && __signbit_double(res) == 0-aux) && res == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == \result) && ~Pluszero~LONGDOUBLE() == x [2022-11-02 20:49:15,801 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (~Pluszero~LONGDOUBLE() == x && aux-res == 0.0 && __signbit_double(res) == 0-aux) && 0bv32 == \result [2022-11-02 20:49:15,817 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/witness.graphml [2022-11-02 20:49:15,818 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-02 20:49:15,818 INFO L158 Benchmark]: Toolchain (without parser) took 20364.64ms. Allocated memory was 67.1MB in the beginning and 81.8MB in the end (delta: 14.7MB). Free memory was 45.8MB in the beginning and 43.2MB in the end (delta: 2.6MB). Peak memory consumption was 15.7MB. Max. memory is 16.1GB. [2022-11-02 20:49:15,819 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 67.1MB. Free memory was 47.8MB in the beginning and 47.8MB in the end (delta: 48.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:49:15,819 INFO L158 Benchmark]: CACSL2BoogieTranslator took 417.49ms. Allocated memory is still 67.1MB. Free memory was 45.5MB in the beginning and 46.9MB in the end (delta: -1.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-02 20:49:15,819 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.90ms. Allocated memory is still 67.1MB. Free memory was 46.9MB in the beginning and 44.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 20:49:15,820 INFO L158 Benchmark]: Boogie Preprocessor took 78.40ms. Allocated memory is still 67.1MB. Free memory was 44.9MB in the beginning and 42.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 20:49:15,820 INFO L158 Benchmark]: RCFGBuilder took 3455.93ms. Allocated memory is still 67.1MB. Free memory was 42.6MB in the beginning and 39.9MB in the end (delta: 2.7MB). Peak memory consumption was 14.8MB. Max. memory is 16.1GB. [2022-11-02 20:49:15,820 INFO L158 Benchmark]: TraceAbstraction took 16274.99ms. Allocated memory was 67.1MB in the beginning and 81.8MB in the end (delta: 14.7MB). Free memory was 39.2MB in the beginning and 47.4MB in the end (delta: -8.2MB). Peak memory consumption was 6.2MB. Max. memory is 16.1GB. [2022-11-02 20:49:15,821 INFO L158 Benchmark]: Witness Printer took 58.35ms. Allocated memory is still 81.8MB. Free memory was 47.4MB in the beginning and 43.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-02 20:49:15,823 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 67.1MB. Free memory was 47.8MB in the beginning and 47.8MB in the end (delta: 48.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 417.49ms. Allocated memory is still 67.1MB. Free memory was 45.5MB in the beginning and 46.9MB in the end (delta: -1.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.90ms. Allocated memory is still 67.1MB. Free memory was 46.9MB in the beginning and 44.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 78.40ms. Allocated memory is still 67.1MB. Free memory was 44.9MB in the beginning and 42.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 3455.93ms. Allocated memory is still 67.1MB. Free memory was 42.6MB in the beginning and 39.9MB in the end (delta: 2.7MB). Peak memory consumption was 14.8MB. Max. memory is 16.1GB. * TraceAbstraction took 16274.99ms. Allocated memory was 67.1MB in the beginning and 81.8MB in the end (delta: 14.7MB). Free memory was 39.2MB in the beginning and 47.4MB in the end (delta: -8.2MB). Peak memory consumption was 6.2MB. Max. memory is 16.1GB. * Witness Printer took 58.35ms. Allocated memory is still 81.8MB. Free memory was 47.4MB in the beginning and 43.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 156]: 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, 53 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 16.2s, OverallIterations: 13, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 5.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 316 SdHoareTripleChecker+Valid, 3.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 316 mSDsluCounter, 2074 SdHoareTripleChecker+Invalid, 3.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 161 IncrementalHoareTripleChecker+Unchecked, 1326 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 259 IncrementalHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 748 mSDtfsCounter, 259 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 444 GetRequests, 388 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 2.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=80occurred in iteration=12, InterpolantAutomatonStates: 73, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 13 MinimizatonAttempts, 18 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 10 PreInvPairs, 15 NumberOfFragments, 42 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 24 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 2.2s SatisfiabilityAnalysisTime, 4.4s InterpolantComputationTime, 361 NumberOfCodeBlocks, 314 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 428 ConstructedInterpolants, 31 QuantifiedInterpolants, 1157 SizeOfPredicates, 50 NumberOfNonLiveVariables, 990 ConjunctsInSsa, 96 ConjunctsInUnsatCore, 15 InterpolantComputations, 11 PerfectInterpolantSequences, 177/223 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: 71]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 84]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: ~Pluszero~LONGDOUBLE() == x && ~Pluszero~LONGDOUBLE() == \result - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 134]: Loop Invariant Derived loop invariant: (((~Pluszero~LONGDOUBLE() == x && aux-res == 0.0 && __signbit_double(res) == 0-aux) && res == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == \result) && ~Pluszero~LONGDOUBLE() == x - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 143]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 131]: Loop Invariant Derived loop invariant: (~Pluszero~LONGDOUBLE() == x && aux-res == 0.0 && __signbit_double(res) == 0-aux) && 0bv32 == \result - InvariantResult [Line: 122]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: sign == 2147483648bv32 && ~Pluszero~LONGDOUBLE() == x RESULT: Ultimate proved your program to be correct! [2022-11-02 20:49:15,961 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7857718-4e50-4133-87ba-493cbcb90aa0/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE