./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_FIFO.c --full-output --architecture 64bit -------------------------------------------------------------------------------- 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_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/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_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_FIFO.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/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 64bit --witnessprinter.graph.data.programhash c16eea741307fcf998a7d8c15fea1df6c992fe7672606bd6ee824e0bc4e8768f --- 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 21:11:24,706 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 21:11:24,708 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 21:11:24,737 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 21:11:24,738 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 21:11:24,739 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 21:11:24,741 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 21:11:24,743 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 21:11:24,745 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 21:11:24,746 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 21:11:24,747 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 21:11:24,748 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 21:11:24,749 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 21:11:24,750 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 21:11:24,752 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 21:11:24,753 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 21:11:24,754 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 21:11:24,756 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 21:11:24,758 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 21:11:24,760 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 21:11:24,762 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 21:11:24,763 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 21:11:24,765 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 21:11:24,766 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 21:11:24,770 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 21:11:24,774 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 21:11:24,775 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 21:11:24,776 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 21:11:24,778 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 21:11:24,779 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 21:11:24,780 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 21:11:24,781 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 21:11:24,783 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 21:11:24,784 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 21:11:24,786 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 21:11:24,786 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 21:11:24,788 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 21:11:24,789 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 21:11:24,789 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 21:11:24,792 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 21:11:24,793 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 21:11:24,794 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-02 21:11:24,839 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 21:11:24,840 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 21:11:24,841 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 21:11:24,841 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 21:11:24,842 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 21:11:24,842 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 21:11:24,843 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 21:11:24,843 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 21:11:24,843 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 21:11:24,844 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 21:11:24,845 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 21:11:24,845 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 21:11:24,845 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 21:11:24,845 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 21:11:24,845 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 21:11:24,846 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 21:11:24,846 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 21:11:24,846 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 21:11:24,846 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 21:11:24,847 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 21:11:24,847 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 21:11:24,847 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 21:11:24,847 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 21:11:24,847 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 21:11:24,848 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 21:11:24,848 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 21:11:24,848 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 21:11:24,848 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 21:11:24,848 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 21:11:24,849 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 21:11:24,849 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_815318ac-8331-4cbc-a490-cefa7719b67a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c16eea741307fcf998a7d8c15fea1df6c992fe7672606bd6ee824e0bc4e8768f [2022-11-02 21:11:25,123 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 21:11:25,156 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 21:11:25,160 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 21:11:25,162 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 21:11:25,163 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 21:11:25,164 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_FIFO.c [2022-11-02 21:11:25,262 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/data/d79f12f6f/9b131a41df1146459d5a3e284d742b35/FLAG4485fc626 [2022-11-02 21:11:25,754 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 21:11:25,755 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_FIFO.c [2022-11-02 21:11:25,779 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/data/d79f12f6f/9b131a41df1146459d5a3e284d742b35/FLAG4485fc626 [2022-11-02 21:11:26,061 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/data/d79f12f6f/9b131a41df1146459d5a3e284d742b35 [2022-11-02 21:11:26,063 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 21:11:26,065 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 21:11:26,067 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 21:11:26,067 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 21:11:26,071 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 21:11:26,072 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:11:26" (1/1) ... [2022-11-02 21:11:26,073 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6dd154d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:11:26, skipping insertion in model container [2022-11-02 21:11:26,073 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:11:26" (1/1) ... [2022-11-02 21:11:26,081 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 21:11:26,128 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 21:11:26,357 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_815318ac-8331-4cbc-a490-cefa7719b67a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_FIFO.c[1107,1120] [2022-11-02 21:11:26,632 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:11:26,636 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 21:11:26,650 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_815318ac-8331-4cbc-a490-cefa7719b67a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_FIFO.c[1107,1120] [2022-11-02 21:11:26,749 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:11:26,768 INFO L208 MainTranslator]: Completed translation [2022-11-02 21:11:26,768 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:11:26 WrapperNode [2022-11-02 21:11:26,768 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 21:11:26,770 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 21:11:26,770 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 21:11:26,770 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 21:11:26,778 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:11:26" (1/1) ... [2022-11-02 21:11:26,817 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:11:26" (1/1) ... [2022-11-02 21:11:26,965 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1088 [2022-11-02 21:11:26,965 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 21:11:26,966 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 21:11:26,967 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 21:11:26,967 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 21:11:26,976 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:11:26" (1/1) ... [2022-11-02 21:11:26,977 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:11:26" (1/1) ... [2022-11-02 21:11:26,993 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:11:26" (1/1) ... [2022-11-02 21:11:26,993 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:11:26" (1/1) ... [2022-11-02 21:11:27,072 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:11:26" (1/1) ... [2022-11-02 21:11:27,078 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:11:26" (1/1) ... [2022-11-02 21:11:27,085 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:11:26" (1/1) ... [2022-11-02 21:11:27,092 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:11:26" (1/1) ... [2022-11-02 21:11:27,110 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 21:11:27,111 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 21:11:27,111 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 21:11:27,112 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 21:11:27,113 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:11:26" (1/1) ... [2022-11-02 21:11:27,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 21:11:27,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:11:27,148 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 21:11:27,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 21:11:27,197 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 21:11:27,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 21:11:27,464 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 21:11:27,466 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 21:11:28,920 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 21:11:28,937 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 21:11:28,937 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-02 21:11:28,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:11:28 BoogieIcfgContainer [2022-11-02 21:11:28,940 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 21:11:28,944 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 21:11:28,944 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 21:11:28,948 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 21:11:28,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 09:11:26" (1/3) ... [2022-11-02 21:11:28,950 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49ef630d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:11:28, skipping insertion in model container [2022-11-02 21:11:28,950 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:11:26" (2/3) ... [2022-11-02 21:11:28,951 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49ef630d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:11:28, skipping insertion in model container [2022-11-02 21:11:28,951 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:11:28" (3/3) ... [2022-11-02 21:11:28,952 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_FIFO.c [2022-11-02 21:11:28,980 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 21:11:28,980 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-02 21:11:29,057 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 21:11:29,069 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;@464a4f0b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 21:11:29,069 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-02 21:11:29,079 INFO L276 IsEmpty]: Start isEmpty. Operand has 137 states, 135 states have (on average 1.4962962962962962) internal successors, (202), 136 states have internal predecessors, (202), 0 states have call successors, (0), 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 21:11:29,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-02 21:11:29,089 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:11:29,090 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 21:11:29,091 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:11:29,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:29,096 INFO L85 PathProgramCache]: Analyzing trace with hash -1972187821, now seen corresponding path program 1 times [2022-11-02 21:11:29,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:11:29,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640287793] [2022-11-02 21:11:29,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:29,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:11:29,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:30,855 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 21:11:30,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:11:30,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640287793] [2022-11-02 21:11:30,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640287793] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:11:30,858 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:11:30,858 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 21:11:30,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615854603] [2022-11-02 21:11:30,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:11:30,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 21:11:30,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:11:30,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 21:11:30,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 21:11:30,912 INFO L87 Difference]: Start difference. First operand has 137 states, 135 states have (on average 1.4962962962962962) internal successors, (202), 136 states have internal predecessors, (202), 0 states have call successors, (0), 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 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:11:31,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:11:31,191 INFO L93 Difference]: Finished difference Result 408 states and 611 transitions. [2022-11-02 21:11:31,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 21:11:31,194 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-11-02 21:11:31,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:11:31,205 INFO L225 Difference]: With dead ends: 408 [2022-11-02 21:11:31,205 INFO L226 Difference]: Without dead ends: 273 [2022-11-02 21:11:31,209 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:11:31,212 INFO L413 NwaCegarLoop]: 204 mSDtfsCounter, 376 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 376 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 21:11:31,213 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [376 Valid, 585 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 21:11:31,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2022-11-02 21:11:31,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 143. [2022-11-02 21:11:31,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 142 states have (on average 1.4788732394366197) internal successors, (210), 142 states have internal predecessors, (210), 0 states have call successors, (0), 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 21:11:31,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 210 transitions. [2022-11-02 21:11:31,259 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 210 transitions. Word has length 27 [2022-11-02 21:11:31,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:11:31,260 INFO L495 AbstractCegarLoop]: Abstraction has 143 states and 210 transitions. [2022-11-02 21:11:31,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:11:31,260 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 210 transitions. [2022-11-02 21:11:31,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-02 21:11:31,261 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:11:31,261 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 21:11:31,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 21:11:31,262 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:11:31,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:31,263 INFO L85 PathProgramCache]: Analyzing trace with hash 1301711121, now seen corresponding path program 1 times [2022-11-02 21:11:31,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:11:31,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070444272] [2022-11-02 21:11:31,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:31,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:11:31,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:31,761 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 21:11:31,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:11:31,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070444272] [2022-11-02 21:11:31,763 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070444272] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:11:31,763 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:11:31,763 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:11:31,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667450097] [2022-11-02 21:11:31,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:11:31,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:11:31,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:11:31,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:11:31,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:11:31,767 INFO L87 Difference]: Start difference. First operand 143 states and 210 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 21:11:31,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:11:31,908 INFO L93 Difference]: Finished difference Result 535 states and 789 transitions. [2022-11-02 21:11:31,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:11:31,909 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 21:11:31,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:11:31,911 INFO L225 Difference]: With dead ends: 535 [2022-11-02 21:11:31,911 INFO L226 Difference]: Without dead ends: 404 [2022-11-02 21:11:31,912 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-02 21:11:31,914 INFO L413 NwaCegarLoop]: 203 mSDtfsCounter, 955 mSDsluCounter, 601 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 955 SdHoareTripleChecker+Valid, 804 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:11:31,914 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [955 Valid, 804 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:11:31,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2022-11-02 21:11:31,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 145. [2022-11-02 21:11:31,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 144 states have (on average 1.4722222222222223) internal successors, (212), 144 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:11:31,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 212 transitions. [2022-11-02 21:11:31,927 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 212 transitions. Word has length 27 [2022-11-02 21:11:31,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:11:31,927 INFO L495 AbstractCegarLoop]: Abstraction has 145 states and 212 transitions. [2022-11-02 21:11:31,927 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 21:11:31,928 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 212 transitions. [2022-11-02 21:11:31,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-02 21:11:31,928 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:11:31,929 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 21:11:31,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 21:11:31,929 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:11:31,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:31,931 INFO L85 PathProgramCache]: Analyzing trace with hash 290593871, now seen corresponding path program 1 times [2022-11-02 21:11:31,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:11:31,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595913860] [2022-11-02 21:11:31,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:31,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:11:32,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:32,938 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 21:11:32,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:11:32,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595913860] [2022-11-02 21:11:32,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595913860] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:11:32,939 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:11:32,939 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 21:11:32,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132304542] [2022-11-02 21:11:32,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:11:32,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 21:11:32,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:11:32,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 21:11:32,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 21:11:32,942 INFO L87 Difference]: Start difference. First operand 145 states and 212 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:11:33,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:11:33,087 INFO L93 Difference]: Finished difference Result 408 states and 598 transitions. [2022-11-02 21:11:33,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 21:11:33,088 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-11-02 21:11:33,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:11:33,089 INFO L225 Difference]: With dead ends: 408 [2022-11-02 21:11:33,089 INFO L226 Difference]: Without dead ends: 267 [2022-11-02 21:11:33,090 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:11:33,092 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 380 mSDsluCounter, 382 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 380 SdHoareTripleChecker+Valid, 574 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 21:11:33,092 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [380 Valid, 574 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:11:33,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2022-11-02 21:11:33,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 145. [2022-11-02 21:11:33,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 144 states have (on average 1.4652777777777777) internal successors, (211), 144 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:11:33,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 211 transitions. [2022-11-02 21:11:33,103 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 211 transitions. Word has length 27 [2022-11-02 21:11:33,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:11:33,104 INFO L495 AbstractCegarLoop]: Abstraction has 145 states and 211 transitions. [2022-11-02 21:11:33,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:11:33,104 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 211 transitions. [2022-11-02 21:11:33,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-02 21:11:33,105 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:11:33,105 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 21:11:33,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 21:11:33,106 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:11:33,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:33,106 INFO L85 PathProgramCache]: Analyzing trace with hash 156580365, now seen corresponding path program 1 times [2022-11-02 21:11:33,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:11:33,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657527375] [2022-11-02 21:11:33,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:33,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:11:33,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:33,954 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 21:11:33,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:11:33,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657527375] [2022-11-02 21:11:33,955 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657527375] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:11:33,955 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:11:33,955 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:11:33,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623212995] [2022-11-02 21:11:33,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:11:33,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:11:33,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:11:33,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:11:33,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:11:33,958 INFO L87 Difference]: Start difference. First operand 145 states and 211 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 21:11:34,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:11:34,177 INFO L93 Difference]: Finished difference Result 414 states and 606 transitions. [2022-11-02 21:11:34,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:11:34,180 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 21:11:34,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:11:34,182 INFO L225 Difference]: With dead ends: 414 [2022-11-02 21:11:34,182 INFO L226 Difference]: Without dead ends: 281 [2022-11-02 21:11:34,183 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-02 21:11:34,184 INFO L413 NwaCegarLoop]: 205 mSDtfsCounter, 560 mSDsluCounter, 571 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 560 SdHoareTripleChecker+Valid, 776 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:11:34,184 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [560 Valid, 776 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:11:34,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2022-11-02 21:11:34,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 149. [2022-11-02 21:11:34,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 148 states have (on average 1.4527027027027026) internal successors, (215), 148 states have internal predecessors, (215), 0 states have call successors, (0), 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 21:11:34,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 215 transitions. [2022-11-02 21:11:34,203 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 215 transitions. Word has length 27 [2022-11-02 21:11:34,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:11:34,204 INFO L495 AbstractCegarLoop]: Abstraction has 149 states and 215 transitions. [2022-11-02 21:11:34,204 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 21:11:34,204 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 215 transitions. [2022-11-02 21:11:34,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-02 21:11:34,205 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:11:34,205 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 21:11:34,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 21:11:34,205 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:11:34,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:34,206 INFO L85 PathProgramCache]: Analyzing trace with hash 414745803, now seen corresponding path program 1 times [2022-11-02 21:11:34,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:11:34,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380791504] [2022-11-02 21:11:34,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:34,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:11:34,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:35,754 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 21:11:35,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:11:35,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380791504] [2022-11-02 21:11:35,755 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380791504] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:11:35,755 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:11:35,755 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-02 21:11:35,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583846015] [2022-11-02 21:11:35,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:11:35,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 21:11:35,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:11:35,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 21:11:35,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-11-02 21:11:35,759 INFO L87 Difference]: Start difference. First operand 149 states and 215 transitions. Second operand has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 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 21:11:37,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:11:37,553 INFO L93 Difference]: Finished difference Result 557 states and 815 transitions. [2022-11-02 21:11:37,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-02 21:11:37,553 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 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 21:11:37,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:11:37,555 INFO L225 Difference]: With dead ends: 557 [2022-11-02 21:11:37,555 INFO L226 Difference]: Without dead ends: 421 [2022-11-02 21:11:37,556 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=169, Invalid=337, Unknown=0, NotChecked=0, Total=506 [2022-11-02 21:11:37,557 INFO L413 NwaCegarLoop]: 184 mSDtfsCounter, 3314 mSDsluCounter, 695 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3314 SdHoareTripleChecker+Valid, 879 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-02 21:11:37,557 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3314 Valid, 879 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-02 21:11:37,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2022-11-02 21:11:37,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 155. [2022-11-02 21:11:37,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 154 states have (on average 1.448051948051948) internal successors, (223), 154 states have internal predecessors, (223), 0 states have call successors, (0), 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 21:11:37,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 223 transitions. [2022-11-02 21:11:37,576 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 223 transitions. Word has length 27 [2022-11-02 21:11:37,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:11:37,577 INFO L495 AbstractCegarLoop]: Abstraction has 155 states and 223 transitions. [2022-11-02 21:11:37,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 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 21:11:37,577 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 223 transitions. [2022-11-02 21:11:37,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-02 21:11:37,581 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:11:37,582 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 21:11:37,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 21:11:37,584 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:11:37,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:37,585 INFO L85 PathProgramCache]: Analyzing trace with hash 472004105, now seen corresponding path program 1 times [2022-11-02 21:11:37,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:11:37,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152621113] [2022-11-02 21:11:37,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:37,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:11:37,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:38,232 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 21:11:38,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:11:38,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152621113] [2022-11-02 21:11:38,239 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152621113] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:11:38,239 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:11:38,240 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 21:11:38,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545482825] [2022-11-02 21:11:38,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:11:38,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:11:38,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:11:38,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:11:38,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:11:38,242 INFO L87 Difference]: Start difference. First operand 155 states and 223 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 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 21:11:38,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:11:38,452 INFO L93 Difference]: Finished difference Result 433 states and 630 transitions. [2022-11-02 21:11:38,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:11:38,453 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 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 21:11:38,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:11:38,454 INFO L225 Difference]: With dead ends: 433 [2022-11-02 21:11:38,454 INFO L226 Difference]: Without dead ends: 294 [2022-11-02 21:11:38,455 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-11-02 21:11:38,461 INFO L413 NwaCegarLoop]: 208 mSDtfsCounter, 558 mSDsluCounter, 755 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 558 SdHoareTripleChecker+Valid, 963 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 21:11:38,464 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [558 Valid, 963 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 21:11:38,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2022-11-02 21:11:38,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 159. [2022-11-02 21:11:38,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 158 states have (on average 1.4430379746835442) internal successors, (228), 158 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:11:38,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 228 transitions. [2022-11-02 21:11:38,480 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 228 transitions. Word has length 27 [2022-11-02 21:11:38,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:11:38,482 INFO L495 AbstractCegarLoop]: Abstraction has 159 states and 228 transitions. [2022-11-02 21:11:38,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 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 21:11:38,482 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 228 transitions. [2022-11-02 21:11:38,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-02 21:11:38,484 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:11:38,484 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 21:11:38,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-02 21:11:38,485 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:11:38,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:38,486 INFO L85 PathProgramCache]: Analyzing trace with hash -337342521, now seen corresponding path program 1 times [2022-11-02 21:11:38,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:11:38,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304732472] [2022-11-02 21:11:38,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:38,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:11:38,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:39,158 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 21:11:39,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:11:39,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304732472] [2022-11-02 21:11:39,158 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304732472] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:11:39,159 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:11:39,159 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:11:39,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139101221] [2022-11-02 21:11:39,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:11:39,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:11:39,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:11:39,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:11:39,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:11:39,160 INFO L87 Difference]: Start difference. First operand 159 states and 228 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 21:11:39,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:11:39,376 INFO L93 Difference]: Finished difference Result 440 states and 639 transitions. [2022-11-02 21:11:39,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:11:39,377 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 21:11:39,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:11:39,380 INFO L225 Difference]: With dead ends: 440 [2022-11-02 21:11:39,380 INFO L226 Difference]: Without dead ends: 301 [2022-11-02 21:11:39,380 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-02 21:11:39,381 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 546 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 546 SdHoareTripleChecker+Valid, 787 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 21:11:39,381 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [546 Valid, 787 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 21:11:39,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2022-11-02 21:11:39,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 163. [2022-11-02 21:11:39,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 162 states have (on average 1.4320987654320987) internal successors, (232), 162 states have internal predecessors, (232), 0 states have call successors, (0), 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 21:11:39,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 232 transitions. [2022-11-02 21:11:39,388 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 232 transitions. Word has length 27 [2022-11-02 21:11:39,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:11:39,389 INFO L495 AbstractCegarLoop]: Abstraction has 163 states and 232 transitions. [2022-11-02 21:11:39,389 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 21:11:39,389 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 232 transitions. [2022-11-02 21:11:39,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-02 21:11:39,390 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:11:39,390 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 21:11:39,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-02 21:11:39,390 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:11:39,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:39,391 INFO L85 PathProgramCache]: Analyzing trace with hash -337282939, now seen corresponding path program 1 times [2022-11-02 21:11:39,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:11:39,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778609105] [2022-11-02 21:11:39,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:39,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:11:39,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:40,837 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 21:11:40,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:11:40,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778609105] [2022-11-02 21:11:40,837 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778609105] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:11:40,837 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:11:40,838 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 21:11:40,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212175825] [2022-11-02 21:11:40,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:11:40,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:11:40,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:11:40,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:11:40,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:11:40,840 INFO L87 Difference]: Start difference. First operand 163 states and 232 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 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 21:11:41,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:11:41,129 INFO L93 Difference]: Finished difference Result 432 states and 622 transitions. [2022-11-02 21:11:41,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-02 21:11:41,129 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 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 21:11:41,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:11:41,131 INFO L225 Difference]: With dead ends: 432 [2022-11-02 21:11:41,131 INFO L226 Difference]: Without dead ends: 279 [2022-11-02 21:11:41,131 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-02 21:11:41,132 INFO L413 NwaCegarLoop]: 198 mSDtfsCounter, 736 mSDsluCounter, 764 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 736 SdHoareTripleChecker+Valid, 962 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 21:11:41,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [736 Valid, 962 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 21:11:41,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2022-11-02 21:11:41,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 163. [2022-11-02 21:11:41,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 162 states have (on average 1.4259259259259258) internal successors, (231), 162 states have internal predecessors, (231), 0 states have call successors, (0), 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 21:11:41,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 231 transitions. [2022-11-02 21:11:41,139 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 231 transitions. Word has length 27 [2022-11-02 21:11:41,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:11:41,139 INFO L495 AbstractCegarLoop]: Abstraction has 163 states and 231 transitions. [2022-11-02 21:11:41,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 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 21:11:41,139 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 231 transitions. [2022-11-02 21:11:41,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-02 21:11:41,146 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:11:41,146 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 21:11:41,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-02 21:11:41,147 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:11:41,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:41,147 INFO L85 PathProgramCache]: Analyzing trace with hash 1963539651, now seen corresponding path program 1 times [2022-11-02 21:11:41,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:11:41,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077594549] [2022-11-02 21:11:41,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:41,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:11:41,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:41,974 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 21:11:41,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:11:41,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077594549] [2022-11-02 21:11:41,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077594549] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:11:41,975 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:11:41,975 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 21:11:41,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788375802] [2022-11-02 21:11:41,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:11:41,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:11:41,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:11:41,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:11:41,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:11:41,977 INFO L87 Difference]: Start difference. First operand 163 states and 231 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 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 21:11:42,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:11:42,201 INFO L93 Difference]: Finished difference Result 432 states and 620 transitions. [2022-11-02 21:11:42,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 21:11:42,201 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 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 21:11:42,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:11:42,203 INFO L225 Difference]: With dead ends: 432 [2022-11-02 21:11:42,203 INFO L226 Difference]: Without dead ends: 277 [2022-11-02 21:11:42,203 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-11-02 21:11:42,204 INFO L413 NwaCegarLoop]: 195 mSDtfsCounter, 736 mSDsluCounter, 764 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 736 SdHoareTripleChecker+Valid, 959 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:11:42,204 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [736 Valid, 959 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:11:42,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2022-11-02 21:11:42,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 163. [2022-11-02 21:11:42,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 162 states have (on average 1.4197530864197532) internal successors, (230), 162 states have internal predecessors, (230), 0 states have call successors, (0), 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 21:11:42,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 230 transitions. [2022-11-02 21:11:42,211 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 230 transitions. Word has length 27 [2022-11-02 21:11:42,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:11:42,212 INFO L495 AbstractCegarLoop]: Abstraction has 163 states and 230 transitions. [2022-11-02 21:11:42,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 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 21:11:42,212 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 230 transitions. [2022-11-02 21:11:42,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-02 21:11:42,213 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:11:42,213 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 21:11:42,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-02 21:11:42,214 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:11:42,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:42,214 INFO L85 PathProgramCache]: Analyzing trace with hash 1145891201, now seen corresponding path program 1 times [2022-11-02 21:11:42,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:11:42,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577643065] [2022-11-02 21:11:42,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:42,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:11:42,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:42,888 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 21:11:42,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:11:42,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577643065] [2022-11-02 21:11:42,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577643065] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:11:42,889 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:11:42,889 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:11:42,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075882879] [2022-11-02 21:11:42,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:11:42,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:11:42,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:11:42,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:11:42,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:11:42,891 INFO L87 Difference]: Start difference. First operand 163 states and 230 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 21:11:43,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:11:43,064 INFO L93 Difference]: Finished difference Result 432 states and 618 transitions. [2022-11-02 21:11:43,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:11:43,065 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 21:11:43,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:11:43,066 INFO L225 Difference]: With dead ends: 432 [2022-11-02 21:11:43,067 INFO L226 Difference]: Without dead ends: 275 [2022-11-02 21:11:43,067 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-02 21:11:43,068 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 549 mSDsluCounter, 573 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 549 SdHoareTripleChecker+Valid, 766 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:11:43,069 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [549 Valid, 766 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:11:43,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2022-11-02 21:11:43,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 163. [2022-11-02 21:11:43,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 162 states have (on average 1.4135802469135803) internal successors, (229), 162 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:11:43,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 229 transitions. [2022-11-02 21:11:43,078 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 229 transitions. Word has length 27 [2022-11-02 21:11:43,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:11:43,078 INFO L495 AbstractCegarLoop]: Abstraction has 163 states and 229 transitions. [2022-11-02 21:11:43,079 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 21:11:43,079 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 229 transitions. [2022-11-02 21:11:43,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-02 21:11:43,080 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:11:43,080 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 21:11:43,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-02 21:11:43,081 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:11:43,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:43,081 INFO L85 PathProgramCache]: Analyzing trace with hash 1364745919, now seen corresponding path program 1 times [2022-11-02 21:11:43,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:11:43,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799270668] [2022-11-02 21:11:43,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:43,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:11:43,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:11:43,337 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 21:11:43,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:11:43,796 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 21:11:43,797 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-02 21:11:43,798 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-02 21:11:43,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-02 21:11:43,803 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:11:43,806 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-02 21:11:43,877 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-02 21:11:43,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 09:11:43 BoogieIcfgContainer [2022-11-02 21:11:43,910 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-02 21:11:43,911 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-02 21:11:43,911 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-02 21:11:43,911 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-02 21:11:43,912 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:11:28" (3/4) ... [2022-11-02 21:11:43,915 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-02 21:11:43,915 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-02 21:11:43,916 INFO L158 Benchmark]: Toolchain (without parser) took 17850.49ms. Allocated memory was 104.9MB in the beginning and 427.8MB in the end (delta: 323.0MB). Free memory was 65.7MB in the beginning and 294.7MB in the end (delta: -229.1MB). Peak memory consumption was 93.8MB. Max. memory is 16.1GB. [2022-11-02 21:11:43,916 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 104.9MB. Free memory is still 83.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 21:11:43,916 INFO L158 Benchmark]: CACSL2BoogieTranslator took 702.16ms. Allocated memory is still 104.9MB. Free memory was 65.5MB in the beginning and 59.6MB in the end (delta: 5.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-02 21:11:43,916 INFO L158 Benchmark]: Boogie Procedure Inliner took 195.97ms. Allocated memory is still 104.9MB. Free memory was 59.6MB in the beginning and 44.5MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-02 21:11:43,917 INFO L158 Benchmark]: Boogie Preprocessor took 143.77ms. Allocated memory was 104.9MB in the beginning and 136.3MB in the end (delta: 31.5MB). Free memory was 44.5MB in the beginning and 100.3MB in the end (delta: -55.8MB). Peak memory consumption was 16.2MB. Max. memory is 16.1GB. [2022-11-02 21:11:43,917 INFO L158 Benchmark]: RCFGBuilder took 1829.39ms. Allocated memory is still 136.3MB. Free memory was 100.3MB in the beginning and 69.0MB in the end (delta: 31.3MB). Peak memory consumption was 62.6MB. Max. memory is 16.1GB. [2022-11-02 21:11:43,918 INFO L158 Benchmark]: TraceAbstraction took 14966.69ms. Allocated memory was 136.3MB in the beginning and 427.8MB in the end (delta: 291.5MB). Free memory was 69.0MB in the beginning and 294.7MB in the end (delta: -225.7MB). Peak memory consumption was 185.3MB. Max. memory is 16.1GB. [2022-11-02 21:11:43,918 INFO L158 Benchmark]: Witness Printer took 4.18ms. Allocated memory is still 427.8MB. Free memory is still 294.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 21:11:43,920 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 104.9MB. Free memory is still 83.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 702.16ms. Allocated memory is still 104.9MB. Free memory was 65.5MB in the beginning and 59.6MB in the end (delta: 5.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 195.97ms. Allocated memory is still 104.9MB. Free memory was 59.6MB in the beginning and 44.5MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 143.77ms. Allocated memory was 104.9MB in the beginning and 136.3MB in the end (delta: 31.5MB). Free memory was 44.5MB in the beginning and 100.3MB in the end (delta: -55.8MB). Peak memory consumption was 16.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1829.39ms. Allocated memory is still 136.3MB. Free memory was 100.3MB in the beginning and 69.0MB in the end (delta: 31.3MB). Peak memory consumption was 62.6MB. Max. memory is 16.1GB. * TraceAbstraction took 14966.69ms. Allocated memory was 136.3MB in the beginning and 427.8MB in the end (delta: 291.5MB). Free memory was 69.0MB in the beginning and 294.7MB in the end (delta: -225.7MB). Peak memory consumption was 185.3MB. Max. memory is 16.1GB. * Witness Printer took 4.18ms. Allocated memory is still 427.8MB. Free memory is still 294.7MB. 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: 20]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 248, overapproximation of bitwiseComplement at line 259, overapproximation of bitwiseAnd at line 242. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 4); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (4 - 1); [L28] const SORT_5 mask_SORT_5 = (SORT_5)-1 >> (sizeof(SORT_5) * 8 - 1); [L29] const SORT_5 msb_SORT_5 = (SORT_5)1 << (1 - 1); [L31] const SORT_13 mask_SORT_13 = (SORT_13)-1 >> (sizeof(SORT_13) * 8 - 32); [L32] const SORT_13 msb_SORT_13 = (SORT_13)1 << (32 - 1); [L34] const SORT_36 mask_SORT_36 = (SORT_36)-1 >> (sizeof(SORT_36) * 8 - 3); [L35] const SORT_36 msb_SORT_36 = (SORT_36)1 << (3 - 1); [L37] const SORT_206 mask_SORT_206 = (SORT_206)-1 >> (sizeof(SORT_206) * 8 - 2); [L38] const SORT_206 msb_SORT_206 = (SORT_206)1 << (2 - 1); [L40] const SORT_1 var_10 = 0; [L41] const SORT_13 var_15 = 4; [L42] const SORT_5 var_22 = 1; [L43] const SORT_36 var_38 = 1; [L44] const SORT_36 var_43 = 2; [L45] const SORT_36 var_50 = 4; [L46] const SORT_36 var_53 = 3; [L47] const SORT_13 var_81 = 1; [L48] const SORT_13 var_101 = 0; [L49] const SORT_5 var_149 = 0; [L50] const SORT_1 var_186 = 15; [L52] SORT_1 input_2; [L53] SORT_1 input_3; [L54] SORT_1 input_4; [L55] SORT_5 input_6; [L56] SORT_1 input_7; [L57] SORT_5 input_8; [L58] SORT_5 input_9; [L59] SORT_13 input_94; [L60] SORT_1 input_96; [L61] SORT_1 input_107; [L62] SORT_1 input_112; [L63] SORT_1 input_114; [L64] SORT_1 input_129; [L65] SORT_5 input_140; [L66] SORT_5 input_144; [L67] SORT_5 input_147; [L68] SORT_5 input_152; [L69] SORT_5 input_155; [L70] SORT_5 input_158; [L71] SORT_1 input_173; [L72] SORT_1 input_176; [L74] SORT_1 state_11 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L75] SORT_1 state_17 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L76] SORT_1 state_19 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L77] SORT_5 state_23 = __VERIFIER_nondet_uchar() & mask_SORT_5; [L78] SORT_5 state_28 = __VERIFIER_nondet_uchar() & mask_SORT_5; [L79] SORT_1 state_32 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L80] SORT_1 state_34 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L81] SORT_1 state_41 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L82] SORT_1 state_46 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L83] SORT_1 state_48 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L84] SORT_1 state_57 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L85] SORT_1 state_59 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L86] SORT_1 state_63 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L87] SORT_1 state_65 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L88] SORT_1 state_70 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L90] SORT_1 init_12_arg_1 = var_10; [L91] state_11 = init_12_arg_1 [L92] SORT_1 init_18_arg_1 = var_10; [L93] state_17 = init_18_arg_1 [L94] SORT_1 init_20_arg_1 = var_10; [L95] state_19 = init_20_arg_1 [L96] SORT_5 init_24_arg_1 = var_22; [L97] state_23 = init_24_arg_1 [L98] SORT_5 init_29_arg_1 = var_22; [L99] state_28 = init_29_arg_1 [L100] SORT_1 init_33_arg_1 = var_10; [L101] state_32 = init_33_arg_1 [L102] SORT_1 init_35_arg_1 = var_10; [L103] state_34 = init_35_arg_1 [L104] SORT_1 init_42_arg_1 = var_10; [L105] state_41 = init_42_arg_1 [L106] SORT_1 init_47_arg_1 = var_10; [L107] state_46 = init_47_arg_1 [L108] SORT_1 init_49_arg_1 = var_10; [L109] state_48 = init_49_arg_1 [L110] SORT_1 init_58_arg_1 = var_10; [L111] state_57 = init_58_arg_1 [L112] SORT_1 init_60_arg_1 = var_10; [L113] state_59 = init_60_arg_1 [L114] SORT_1 init_64_arg_1 = var_10; [L115] state_63 = init_64_arg_1 [L116] SORT_1 init_66_arg_1 = var_10; [L117] state_65 = init_66_arg_1 [L118] SORT_1 init_71_arg_1 = var_10; [L119] state_70 = init_71_arg_1 VAL [init_12_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_24_arg_1=1, init_29_arg_1=1, init_33_arg_1=0, init_35_arg_1=0, init_42_arg_1=0, init_47_arg_1=0, init_49_arg_1=0, init_58_arg_1=0, init_60_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_71_arg_1=0, mask_SORT_1=15, mask_SORT_13=4294967295, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, msb_SORT_1=8, msb_SORT_13=2147483648, msb_SORT_206=2, msb_SORT_36=4, msb_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_10=0, var_101=0, var_149=0, var_15=4, var_186=15, var_22=1, var_38=1, var_43=2, var_50=4, var_53=3, var_81=1] [L122] input_2 = __VERIFIER_nondet_uchar() [L123] input_3 = __VERIFIER_nondet_uchar() [L124] input_4 = __VERIFIER_nondet_uchar() [L125] input_6 = __VERIFIER_nondet_uchar() [L126] input_7 = __VERIFIER_nondet_uchar() [L127] input_8 = __VERIFIER_nondet_uchar() [L128] input_9 = __VERIFIER_nondet_uchar() [L129] input_94 = __VERIFIER_nondet_uint() [L130] input_96 = __VERIFIER_nondet_uchar() [L131] input_107 = __VERIFIER_nondet_uchar() [L132] input_112 = __VERIFIER_nondet_uchar() [L133] input_114 = __VERIFIER_nondet_uchar() [L134] input_129 = __VERIFIER_nondet_uchar() [L135] input_140 = __VERIFIER_nondet_uchar() [L136] input_144 = __VERIFIER_nondet_uchar() [L137] input_147 = __VERIFIER_nondet_uchar() [L138] input_152 = __VERIFIER_nondet_uchar() [L139] input_155 = __VERIFIER_nondet_uchar() [L140] input_158 = __VERIFIER_nondet_uchar() [L141] input_173 = __VERIFIER_nondet_uchar() [L142] input_176 = __VERIFIER_nondet_uchar() [L145] SORT_1 var_14_arg_0 = state_11; [L146] var_14_arg_0 = var_14_arg_0 & mask_SORT_1 [L147] SORT_13 var_14 = var_14_arg_0; [L148] SORT_13 var_16_arg_0 = var_14; [L149] SORT_13 var_16_arg_1 = var_15; [L150] SORT_5 var_16 = var_16_arg_0 == var_16_arg_1; [L151] SORT_1 var_21_arg_0 = state_17; [L152] SORT_1 var_21_arg_1 = state_19; [L153] SORT_5 var_21 = var_21_arg_0 == var_21_arg_1; [L154] SORT_5 var_25_arg_0 = state_23; [L155] SORT_5 var_25 = ~var_25_arg_0; [L156] SORT_5 var_26_arg_0 = var_21; [L157] SORT_5 var_26_arg_1 = var_25; [L158] SORT_5 var_26 = var_26_arg_0 & var_26_arg_1; [L159] var_26 = var_26 & mask_SORT_5 [L160] SORT_5 var_27_arg_0 = var_16; [L161] SORT_5 var_27_arg_1 = var_26; [L162] SORT_5 var_27 = var_27_arg_0 == var_27_arg_1; [L163] SORT_5 var_30_arg_0 = state_28; [L164] SORT_5 var_30_arg_1 = state_23; [L165] SORT_5 var_30 = var_30_arg_0 == var_30_arg_1; [L166] SORT_5 var_31_arg_0 = var_27; [L167] SORT_5 var_31_arg_1 = var_30; [L168] SORT_5 var_31 = var_31_arg_0 & var_31_arg_1; [L169] SORT_1 var_37_arg_0 = state_11; [L170] SORT_36 var_37 = var_37_arg_0 >> 0; [L171] var_37 = var_37 & mask_SORT_36 [L172] SORT_36 var_54_arg_0 = var_37; [L173] SORT_36 var_54_arg_1 = var_53; [L174] SORT_5 var_54 = var_54_arg_0 == var_54_arg_1; [L175] SORT_36 var_51_arg_0 = var_37; [L176] SORT_36 var_51_arg_1 = var_50; [L177] SORT_5 var_51 = var_51_arg_0 == var_51_arg_1; [L178] SORT_5 var_55_arg_0 = var_54; [L179] SORT_5 var_55_arg_1 = var_51; [L180] SORT_5 var_55 = var_55_arg_0 | var_55_arg_1; [L181] var_55 = var_55 & mask_SORT_5 [L182] SORT_5 var_52_arg_0 = var_51; [L183] SORT_1 var_52_arg_1 = state_48; [L184] SORT_1 var_52_arg_2 = state_46; VAL [init_12_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_24_arg_1=1, init_29_arg_1=1, init_33_arg_1=0, init_35_arg_1=0, init_42_arg_1=0, init_47_arg_1=0, init_49_arg_1=0, init_58_arg_1=0, init_60_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_71_arg_1=0, input_107=6, input_112=19, input_114=14, input_129=12, input_140=3, input_144=10, input_147=11, input_152=1, input_155=4, input_158=17, input_173=9, input_176=7, input_2=16, input_3=2, input_4=13, input_6=18, input_7=20, input_8=8, input_9=15, input_94=2147483653, input_96=2, mask_SORT_1=15, mask_SORT_13=4294967295, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, msb_SORT_1=8, msb_SORT_13=2147483648, msb_SORT_206=2, msb_SORT_36=4, msb_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_10=0, var_101=0, var_14=0, var_149=0, var_14_arg_0=0, var_15=4, var_16=0, var_16_arg_0=0, var_16_arg_1=4, var_186=15, var_21=1, var_21_arg_0=0, var_21_arg_1=0, var_22=1, var_25=0, var_25_arg_0=1, var_26=0, var_26_arg_0=1, var_26_arg_1=0, var_27=1, var_27_arg_0=0, var_27_arg_1=0, var_30=1, var_30_arg_0=1, var_30_arg_1=1, var_31=1, var_31_arg_0=1, var_31_arg_1=1, var_37=0, var_37_arg_0=0, var_38=1, var_43=2, var_50=4, var_51=0, var_51_arg_0=0, var_51_arg_1=4, var_52_arg_0=0, var_52_arg_1=0, var_52_arg_2=0, var_53=3, var_54=0, var_54_arg_0=0, var_54_arg_1=3, var_55=0, var_55_arg_0=0, var_55_arg_1=0, var_81=1] [L185] EXPR var_52_arg_0 ? var_52_arg_1 : var_52_arg_2 VAL [init_12_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_24_arg_1=1, init_29_arg_1=1, init_33_arg_1=0, init_35_arg_1=0, init_42_arg_1=0, init_47_arg_1=0, init_49_arg_1=0, init_58_arg_1=0, init_60_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_71_arg_1=0, input_107=6, input_112=19, input_114=14, input_129=12, input_140=3, input_144=10, input_147=11, input_152=1, input_155=4, input_158=17, input_173=9, input_176=7, input_2=16, input_3=2, input_4=13, input_6=18, input_7=20, input_8=8, input_9=15, input_94=2147483653, input_96=2, mask_SORT_1=15, mask_SORT_13=4294967295, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, msb_SORT_1=8, msb_SORT_13=2147483648, msb_SORT_206=2, msb_SORT_36=4, msb_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_10=0, var_101=0, var_14=0, var_149=0, var_14_arg_0=0, var_15=4, var_16=0, var_16_arg_0=0, var_16_arg_1=4, var_186=15, var_21=1, var_21_arg_0=0, var_21_arg_1=0, var_22=1, var_25=0, var_25_arg_0=1, var_26=0, var_26_arg_0=1, var_26_arg_1=0, var_27=1, var_27_arg_0=0, var_27_arg_1=0, var_30=1, var_30_arg_0=1, var_30_arg_1=1, var_31=1, var_31_arg_0=1, var_31_arg_1=1, var_37=0, var_37_arg_0=0, var_38=1, var_43=2, var_50=4, var_51=0, var_51_arg_0=0, var_51_arg_1=4, var_52_arg_0=0, var_52_arg_0 ? var_52_arg_1 : var_52_arg_2=0, var_52_arg_1=0, var_52_arg_2=0, var_53=3, var_54=0, var_54_arg_0=0, var_54_arg_1=3, var_55=0, var_55_arg_0=0, var_55_arg_1=0, var_81=1] [L185] SORT_1 var_52 = var_52_arg_0 ? var_52_arg_1 : var_52_arg_2; [L186] SORT_36 var_44_arg_0 = var_37; [L187] SORT_36 var_44_arg_1 = var_43; [L188] SORT_5 var_44 = var_44_arg_0 == var_44_arg_1; [L189] SORT_36 var_39_arg_0 = var_37; [L190] SORT_36 var_39_arg_1 = var_38; [L191] SORT_5 var_39 = var_39_arg_0 == var_39_arg_1; [L192] SORT_5 var_40_arg_0 = var_39; [L193] SORT_1 var_40_arg_1 = state_34; [L194] SORT_1 var_40_arg_2 = state_32; VAL [init_12_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_24_arg_1=1, init_29_arg_1=1, init_33_arg_1=0, init_35_arg_1=0, init_42_arg_1=0, init_47_arg_1=0, init_49_arg_1=0, init_58_arg_1=0, init_60_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_71_arg_1=0, input_107=6, input_112=19, input_114=14, input_129=12, input_140=3, input_144=10, input_147=11, input_152=1, input_155=4, input_158=17, input_173=9, input_176=7, input_2=16, input_3=2, input_4=13, input_6=18, input_7=20, input_8=8, input_9=15, input_94=2147483653, input_96=2, mask_SORT_1=15, mask_SORT_13=4294967295, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, msb_SORT_1=8, msb_SORT_13=2147483648, msb_SORT_206=2, msb_SORT_36=4, msb_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_10=0, var_101=0, var_14=0, var_149=0, var_14_arg_0=0, var_15=4, var_16=0, var_16_arg_0=0, var_16_arg_1=4, var_186=15, var_21=1, var_21_arg_0=0, var_21_arg_1=0, var_22=1, var_25=0, var_25_arg_0=1, var_26=0, var_26_arg_0=1, var_26_arg_1=0, var_27=1, var_27_arg_0=0, var_27_arg_1=0, var_30=1, var_30_arg_0=1, var_30_arg_1=1, var_31=1, var_31_arg_0=1, var_31_arg_1=1, var_37=0, var_37_arg_0=0, var_38=1, var_39=0, var_39_arg_0=0, var_39_arg_1=1, var_40_arg_0=0, var_40_arg_1=0, var_40_arg_2=0, var_43=2, var_44=0, var_44_arg_0=0, var_44_arg_1=2, var_50=4, var_51=0, var_51_arg_0=0, var_51_arg_1=4, var_52=0, var_52_arg_0=0, var_52_arg_1=0, var_52_arg_2=0, var_53=3, var_54=0, var_54_arg_0=0, var_54_arg_1=3, var_55=0, var_55_arg_0=0, var_55_arg_1=0, var_81=1] [L195] EXPR var_40_arg_0 ? var_40_arg_1 : var_40_arg_2 VAL [init_12_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_24_arg_1=1, init_29_arg_1=1, init_33_arg_1=0, init_35_arg_1=0, init_42_arg_1=0, init_47_arg_1=0, init_49_arg_1=0, init_58_arg_1=0, init_60_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_71_arg_1=0, input_107=6, input_112=19, input_114=14, input_129=12, input_140=3, input_144=10, input_147=11, input_152=1, input_155=4, input_158=17, input_173=9, input_176=7, input_2=16, input_3=2, input_4=13, input_6=18, input_7=20, input_8=8, input_9=15, input_94=2147483653, input_96=2, mask_SORT_1=15, mask_SORT_13=4294967295, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, msb_SORT_1=8, msb_SORT_13=2147483648, msb_SORT_206=2, msb_SORT_36=4, msb_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_10=0, var_101=0, var_14=0, var_149=0, var_14_arg_0=0, var_15=4, var_16=0, var_16_arg_0=0, var_16_arg_1=4, var_186=15, var_21=1, var_21_arg_0=0, var_21_arg_1=0, var_22=1, var_25=0, var_25_arg_0=1, var_26=0, var_26_arg_0=1, var_26_arg_1=0, var_27=1, var_27_arg_0=0, var_27_arg_1=0, var_30=1, var_30_arg_0=1, var_30_arg_1=1, var_31=1, var_31_arg_0=1, var_31_arg_1=1, var_37=0, var_37_arg_0=0, var_38=1, var_39=0, var_39_arg_0=0, var_39_arg_1=1, var_40_arg_0=0, var_40_arg_0 ? var_40_arg_1 : var_40_arg_2=0, var_40_arg_1=0, var_40_arg_2=0, var_43=2, var_44=0, var_44_arg_0=0, var_44_arg_1=2, var_50=4, var_51=0, var_51_arg_0=0, var_51_arg_1=4, var_52=0, var_52_arg_0=0, var_52_arg_1=0, var_52_arg_2=0, var_53=3, var_54=0, var_54_arg_0=0, var_54_arg_1=3, var_55=0, var_55_arg_0=0, var_55_arg_1=0, var_81=1] [L195] SORT_1 var_40 = var_40_arg_0 ? var_40_arg_1 : var_40_arg_2; [L196] SORT_5 var_45_arg_0 = var_44; [L197] SORT_1 var_45_arg_1 = state_41; [L198] SORT_1 var_45_arg_2 = var_40; VAL [init_12_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_24_arg_1=1, init_29_arg_1=1, init_33_arg_1=0, init_35_arg_1=0, init_42_arg_1=0, init_47_arg_1=0, init_49_arg_1=0, init_58_arg_1=0, init_60_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_71_arg_1=0, input_107=6, input_112=19, input_114=14, input_129=12, input_140=3, input_144=10, input_147=11, input_152=1, input_155=4, input_158=17, input_173=9, input_176=7, input_2=16, input_3=2, input_4=13, input_6=18, input_7=20, input_8=8, input_9=15, input_94=2147483653, input_96=2, mask_SORT_1=15, mask_SORT_13=4294967295, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, msb_SORT_1=8, msb_SORT_13=2147483648, msb_SORT_206=2, msb_SORT_36=4, msb_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_10=0, var_101=0, var_14=0, var_149=0, var_14_arg_0=0, var_15=4, var_16=0, var_16_arg_0=0, var_16_arg_1=4, var_186=15, var_21=1, var_21_arg_0=0, var_21_arg_1=0, var_22=1, var_25=0, var_25_arg_0=1, var_26=0, var_26_arg_0=1, var_26_arg_1=0, var_27=1, var_27_arg_0=0, var_27_arg_1=0, var_30=1, var_30_arg_0=1, var_30_arg_1=1, var_31=1, var_31_arg_0=1, var_31_arg_1=1, var_37=0, var_37_arg_0=0, var_38=1, var_39=0, var_39_arg_0=0, var_39_arg_1=1, var_40=0, var_40_arg_0=0, var_40_arg_1=0, var_40_arg_2=0, var_43=2, var_44=0, var_44_arg_0=0, var_44_arg_1=2, var_45_arg_0=0, var_45_arg_1=0, var_45_arg_2=0, var_50=4, var_51=0, var_51_arg_0=0, var_51_arg_1=4, var_52=0, var_52_arg_0=0, var_52_arg_1=0, var_52_arg_2=0, var_53=3, var_54=0, var_54_arg_0=0, var_54_arg_1=3, var_55=0, var_55_arg_0=0, var_55_arg_1=0, var_81=1] [L199] EXPR var_45_arg_0 ? var_45_arg_1 : var_45_arg_2 VAL [init_12_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_24_arg_1=1, init_29_arg_1=1, init_33_arg_1=0, init_35_arg_1=0, init_42_arg_1=0, init_47_arg_1=0, init_49_arg_1=0, init_58_arg_1=0, init_60_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_71_arg_1=0, input_107=6, input_112=19, input_114=14, input_129=12, input_140=3, input_144=10, input_147=11, input_152=1, input_155=4, input_158=17, input_173=9, input_176=7, input_2=16, input_3=2, input_4=13, input_6=18, input_7=20, input_8=8, input_9=15, input_94=2147483653, input_96=2, mask_SORT_1=15, mask_SORT_13=4294967295, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, msb_SORT_1=8, msb_SORT_13=2147483648, msb_SORT_206=2, msb_SORT_36=4, msb_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_10=0, var_101=0, var_14=0, var_149=0, var_14_arg_0=0, var_15=4, var_16=0, var_16_arg_0=0, var_16_arg_1=4, var_186=15, var_21=1, var_21_arg_0=0, var_21_arg_1=0, var_22=1, var_25=0, var_25_arg_0=1, var_26=0, var_26_arg_0=1, var_26_arg_1=0, var_27=1, var_27_arg_0=0, var_27_arg_1=0, var_30=1, var_30_arg_0=1, var_30_arg_1=1, var_31=1, var_31_arg_0=1, var_31_arg_1=1, var_37=0, var_37_arg_0=0, var_38=1, var_39=0, var_39_arg_0=0, var_39_arg_1=1, var_40=0, var_40_arg_0=0, var_40_arg_1=0, var_40_arg_2=0, var_43=2, var_44=0, var_44_arg_0=0, var_44_arg_1=2, var_45_arg_0=0, var_45_arg_0 ? var_45_arg_1 : var_45_arg_2=0, var_45_arg_1=0, var_45_arg_2=0, var_50=4, var_51=0, var_51_arg_0=0, var_51_arg_1=4, var_52=0, var_52_arg_0=0, var_52_arg_1=0, var_52_arg_2=0, var_53=3, var_54=0, var_54_arg_0=0, var_54_arg_1=3, var_55=0, var_55_arg_0=0, var_55_arg_1=0, var_81=1] [L199] SORT_1 var_45 = var_45_arg_0 ? var_45_arg_1 : var_45_arg_2; [L200] SORT_5 var_56_arg_0 = var_55; [L201] SORT_1 var_56_arg_1 = var_52; [L202] SORT_1 var_56_arg_2 = var_45; VAL [init_12_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_24_arg_1=1, init_29_arg_1=1, init_33_arg_1=0, init_35_arg_1=0, init_42_arg_1=0, init_47_arg_1=0, init_49_arg_1=0, init_58_arg_1=0, init_60_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_71_arg_1=0, input_107=6, input_112=19, input_114=14, input_129=12, input_140=3, input_144=10, input_147=11, input_152=1, input_155=4, input_158=17, input_173=9, input_176=7, input_2=16, input_3=2, input_4=13, input_6=18, input_7=20, input_8=8, input_9=15, input_94=2147483653, input_96=2, mask_SORT_1=15, mask_SORT_13=4294967295, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, msb_SORT_1=8, msb_SORT_13=2147483648, msb_SORT_206=2, msb_SORT_36=4, msb_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_10=0, var_101=0, var_14=0, var_149=0, var_14_arg_0=0, var_15=4, var_16=0, var_16_arg_0=0, var_16_arg_1=4, var_186=15, var_21=1, var_21_arg_0=0, var_21_arg_1=0, var_22=1, var_25=0, var_25_arg_0=1, var_26=0, var_26_arg_0=1, var_26_arg_1=0, var_27=1, var_27_arg_0=0, var_27_arg_1=0, var_30=1, var_30_arg_0=1, var_30_arg_1=1, var_31=1, var_31_arg_0=1, var_31_arg_1=1, var_37=0, var_37_arg_0=0, var_38=1, var_39=0, var_39_arg_0=0, var_39_arg_1=1, var_40=0, var_40_arg_0=0, var_40_arg_1=0, var_40_arg_2=0, var_43=2, var_44=0, var_44_arg_0=0, var_44_arg_1=2, var_45=0, var_45_arg_0=0, var_45_arg_1=0, var_45_arg_2=0, var_50=4, var_51=0, var_51_arg_0=0, var_51_arg_1=4, var_52=0, var_52_arg_0=0, var_52_arg_1=0, var_52_arg_2=0, var_53=3, var_54=0, var_54_arg_0=0, var_54_arg_1=3, var_55=0, var_55_arg_0=0, var_55_arg_1=0, var_56_arg_0=0, var_56_arg_1=0, var_56_arg_2=0, var_81=1] [L203] EXPR var_56_arg_0 ? var_56_arg_1 : var_56_arg_2 VAL [init_12_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_24_arg_1=1, init_29_arg_1=1, init_33_arg_1=0, init_35_arg_1=0, init_42_arg_1=0, init_47_arg_1=0, init_49_arg_1=0, init_58_arg_1=0, init_60_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_71_arg_1=0, input_107=6, input_112=19, input_114=14, input_129=12, input_140=3, input_144=10, input_147=11, input_152=1, input_155=4, input_158=17, input_173=9, input_176=7, input_2=16, input_3=2, input_4=13, input_6=18, input_7=20, input_8=8, input_9=15, input_94=2147483653, input_96=2, mask_SORT_1=15, mask_SORT_13=4294967295, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, msb_SORT_1=8, msb_SORT_13=2147483648, msb_SORT_206=2, msb_SORT_36=4, msb_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_10=0, var_101=0, var_14=0, var_149=0, var_14_arg_0=0, var_15=4, var_16=0, var_16_arg_0=0, var_16_arg_1=4, var_186=15, var_21=1, var_21_arg_0=0, var_21_arg_1=0, var_22=1, var_25=0, var_25_arg_0=1, var_26=0, var_26_arg_0=1, var_26_arg_1=0, var_27=1, var_27_arg_0=0, var_27_arg_1=0, var_30=1, var_30_arg_0=1, var_30_arg_1=1, var_31=1, var_31_arg_0=1, var_31_arg_1=1, var_37=0, var_37_arg_0=0, var_38=1, var_39=0, var_39_arg_0=0, var_39_arg_1=1, var_40=0, var_40_arg_0=0, var_40_arg_1=0, var_40_arg_2=0, var_43=2, var_44=0, var_44_arg_0=0, var_44_arg_1=2, var_45=0, var_45_arg_0=0, var_45_arg_1=0, var_45_arg_2=0, var_50=4, var_51=0, var_51_arg_0=0, var_51_arg_1=4, var_52=0, var_52_arg_0=0, var_52_arg_1=0, var_52_arg_2=0, var_53=3, var_54=0, var_54_arg_0=0, var_54_arg_1=3, var_55=0, var_55_arg_0=0, var_55_arg_1=0, var_56_arg_0=0, var_56_arg_0 ? var_56_arg_1 : var_56_arg_2=0, var_56_arg_1=0, var_56_arg_2=0, var_81=1] [L203] SORT_1 var_56 = var_56_arg_0 ? var_56_arg_1 : var_56_arg_2; [L204] var_56 = var_56 & mask_SORT_1 [L205] SORT_1 var_75_arg_0 = state_17; [L206] SORT_5 var_75 = var_75_arg_0 >> 2; [L207] var_75 = var_75 & mask_SORT_5 [L208] SORT_1 var_68_arg_0 = state_17; [L209] SORT_5 var_68 = var_68_arg_0 >> 1; [L210] var_68 = var_68 & mask_SORT_5 [L211] SORT_1 var_61_arg_0 = state_17; [L212] SORT_5 var_61 = var_61_arg_0 >> 0; [L213] var_61 = var_61 & mask_SORT_5 [L214] SORT_5 var_73_arg_0 = var_61; [L215] SORT_1 var_73_arg_1 = input_4; [L216] SORT_1 var_73_arg_2 = input_3; VAL [init_12_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_24_arg_1=1, init_29_arg_1=1, init_33_arg_1=0, init_35_arg_1=0, init_42_arg_1=0, init_47_arg_1=0, init_49_arg_1=0, init_58_arg_1=0, init_60_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_71_arg_1=0, input_107=6, input_112=19, input_114=14, input_129=12, input_140=3, input_144=10, input_147=11, input_152=1, input_155=4, input_158=17, input_173=9, input_176=7, input_2=16, input_3=2, input_4=13, input_6=18, input_7=20, input_8=8, input_9=15, input_94=2147483653, input_96=2, mask_SORT_1=15, mask_SORT_13=4294967295, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, msb_SORT_1=8, msb_SORT_13=2147483648, msb_SORT_206=2, msb_SORT_36=4, msb_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_10=0, var_101=0, var_14=0, var_149=0, var_14_arg_0=0, var_15=4, var_16=0, var_16_arg_0=0, var_16_arg_1=4, var_186=15, var_21=1, var_21_arg_0=0, var_21_arg_1=0, var_22=1, var_25=0, var_25_arg_0=1, var_26=0, var_26_arg_0=1, var_26_arg_1=0, var_27=1, var_27_arg_0=0, var_27_arg_1=0, var_30=1, var_30_arg_0=1, var_30_arg_1=1, var_31=1, var_31_arg_0=1, var_31_arg_1=1, var_37=0, var_37_arg_0=0, var_38=1, var_39=0, var_39_arg_0=0, var_39_arg_1=1, var_40=0, var_40_arg_0=0, var_40_arg_1=0, var_40_arg_2=0, var_43=2, var_44=0, var_44_arg_0=0, var_44_arg_1=2, var_45=0, var_45_arg_0=0, var_45_arg_1=0, var_45_arg_2=0, var_50=4, var_51=0, var_51_arg_0=0, var_51_arg_1=4, var_52=0, var_52_arg_0=0, var_52_arg_1=0, var_52_arg_2=0, var_53=3, var_54=0, var_54_arg_0=0, var_54_arg_1=3, var_55=0, var_55_arg_0=0, var_55_arg_1=0, var_56=0, var_56_arg_0=0, var_56_arg_1=0, var_56_arg_2=0, var_61=0, var_61_arg_0=0, var_68=0, var_68_arg_0=0, var_73_arg_0=0, var_73_arg_1=13, var_73_arg_2=2, var_75=0, var_75_arg_0=0, var_81=1] [L217] EXPR var_73_arg_0 ? var_73_arg_1 : var_73_arg_2 VAL [init_12_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_24_arg_1=1, init_29_arg_1=1, init_33_arg_1=0, init_35_arg_1=0, init_42_arg_1=0, init_47_arg_1=0, init_49_arg_1=0, init_58_arg_1=0, init_60_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_71_arg_1=0, input_107=6, input_112=19, input_114=14, input_129=12, input_140=3, input_144=10, input_147=11, input_152=1, input_155=4, input_158=17, input_173=9, input_176=7, input_2=16, input_3=2, input_4=13, input_6=18, input_7=20, input_8=8, input_9=15, input_94=2147483653, input_96=2, mask_SORT_1=15, mask_SORT_13=4294967295, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, msb_SORT_1=8, msb_SORT_13=2147483648, msb_SORT_206=2, msb_SORT_36=4, msb_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_10=0, var_101=0, var_14=0, var_149=0, var_14_arg_0=0, var_15=4, var_16=0, var_16_arg_0=0, var_16_arg_1=4, var_186=15, var_21=1, var_21_arg_0=0, var_21_arg_1=0, var_22=1, var_25=0, var_25_arg_0=1, var_26=0, var_26_arg_0=1, var_26_arg_1=0, var_27=1, var_27_arg_0=0, var_27_arg_1=0, var_30=1, var_30_arg_0=1, var_30_arg_1=1, var_31=1, var_31_arg_0=1, var_31_arg_1=1, var_37=0, var_37_arg_0=0, var_38=1, var_39=0, var_39_arg_0=0, var_39_arg_1=1, var_40=0, var_40_arg_0=0, var_40_arg_1=0, var_40_arg_2=0, var_43=2, var_44=0, var_44_arg_0=0, var_44_arg_1=2, var_45=0, var_45_arg_0=0, var_45_arg_1=0, var_45_arg_2=0, var_50=4, var_51=0, var_51_arg_0=0, var_51_arg_1=4, var_52=0, var_52_arg_0=0, var_52_arg_1=0, var_52_arg_2=0, var_53=3, var_54=0, var_54_arg_0=0, var_54_arg_1=3, var_55=0, var_55_arg_0=0, var_55_arg_1=0, var_56=0, var_56_arg_0=0, var_56_arg_1=0, var_56_arg_2=0, var_61=0, var_61_arg_0=0, var_68=0, var_68_arg_0=0, var_73_arg_0=0, var_73_arg_0 ? var_73_arg_1 : var_73_arg_2=2, var_73_arg_1=13, var_73_arg_2=2, var_75=0, var_75_arg_0=0, var_81=1] [L217] SORT_1 var_73 = var_73_arg_0 ? var_73_arg_1 : var_73_arg_2; [L218] SORT_5 var_72_arg_0 = var_61; [L219] SORT_1 var_72_arg_1 = input_2; [L220] SORT_1 var_72_arg_2 = state_70; VAL [init_12_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_24_arg_1=1, init_29_arg_1=1, init_33_arg_1=0, init_35_arg_1=0, init_42_arg_1=0, init_47_arg_1=0, init_49_arg_1=0, init_58_arg_1=0, init_60_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_71_arg_1=0, input_107=6, input_112=19, input_114=14, input_129=12, input_140=3, input_144=10, input_147=11, input_152=1, input_155=4, input_158=17, input_173=9, input_176=7, input_2=16, input_3=2, input_4=13, input_6=18, input_7=20, input_8=8, input_9=15, input_94=2147483653, input_96=2, mask_SORT_1=15, mask_SORT_13=4294967295, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, msb_SORT_1=8, msb_SORT_13=2147483648, msb_SORT_206=2, msb_SORT_36=4, msb_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_10=0, var_101=0, var_14=0, var_149=0, var_14_arg_0=0, var_15=4, var_16=0, var_16_arg_0=0, var_16_arg_1=4, var_186=15, var_21=1, var_21_arg_0=0, var_21_arg_1=0, var_22=1, var_25=0, var_25_arg_0=1, var_26=0, var_26_arg_0=1, var_26_arg_1=0, var_27=1, var_27_arg_0=0, var_27_arg_1=0, var_30=1, var_30_arg_0=1, var_30_arg_1=1, var_31=1, var_31_arg_0=1, var_31_arg_1=1, var_37=0, var_37_arg_0=0, var_38=1, var_39=0, var_39_arg_0=0, var_39_arg_1=1, var_40=0, var_40_arg_0=0, var_40_arg_1=0, var_40_arg_2=0, var_43=2, var_44=0, var_44_arg_0=0, var_44_arg_1=2, var_45=0, var_45_arg_0=0, var_45_arg_1=0, var_45_arg_2=0, var_50=4, var_51=0, var_51_arg_0=0, var_51_arg_1=4, var_52=0, var_52_arg_0=0, var_52_arg_1=0, var_52_arg_2=0, var_53=3, var_54=0, var_54_arg_0=0, var_54_arg_1=3, var_55=0, var_55_arg_0=0, var_55_arg_1=0, var_56=0, var_56_arg_0=0, var_56_arg_1=0, var_56_arg_2=0, var_61=0, var_61_arg_0=0, var_68=0, var_68_arg_0=0, var_72_arg_0=0, var_72_arg_1=16, var_72_arg_2=0, var_73=2, var_73_arg_0=0, var_73_arg_1=13, var_73_arg_2=2, var_75=0, var_75_arg_0=0, var_81=1] [L221] EXPR var_72_arg_0 ? var_72_arg_1 : var_72_arg_2 VAL [init_12_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_24_arg_1=1, init_29_arg_1=1, init_33_arg_1=0, init_35_arg_1=0, init_42_arg_1=0, init_47_arg_1=0, init_49_arg_1=0, init_58_arg_1=0, init_60_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_71_arg_1=0, input_107=6, input_112=19, input_114=14, input_129=12, input_140=3, input_144=10, input_147=11, input_152=1, input_155=4, input_158=17, input_173=9, input_176=7, input_2=16, input_3=2, input_4=13, input_6=18, input_7=20, input_8=8, input_9=15, input_94=2147483653, input_96=2, mask_SORT_1=15, mask_SORT_13=4294967295, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, msb_SORT_1=8, msb_SORT_13=2147483648, msb_SORT_206=2, msb_SORT_36=4, msb_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_10=0, var_101=0, var_14=0, var_149=0, var_14_arg_0=0, var_15=4, var_16=0, var_16_arg_0=0, var_16_arg_1=4, var_186=15, var_21=1, var_21_arg_0=0, var_21_arg_1=0, var_22=1, var_25=0, var_25_arg_0=1, var_26=0, var_26_arg_0=1, var_26_arg_1=0, var_27=1, var_27_arg_0=0, var_27_arg_1=0, var_30=1, var_30_arg_0=1, var_30_arg_1=1, var_31=1, var_31_arg_0=1, var_31_arg_1=1, var_37=0, var_37_arg_0=0, var_38=1, var_39=0, var_39_arg_0=0, var_39_arg_1=1, var_40=0, var_40_arg_0=0, var_40_arg_1=0, var_40_arg_2=0, var_43=2, var_44=0, var_44_arg_0=0, var_44_arg_1=2, var_45=0, var_45_arg_0=0, var_45_arg_1=0, var_45_arg_2=0, var_50=4, var_51=0, var_51_arg_0=0, var_51_arg_1=4, var_52=0, var_52_arg_0=0, var_52_arg_1=0, var_52_arg_2=0, var_53=3, var_54=0, var_54_arg_0=0, var_54_arg_1=3, var_55=0, var_55_arg_0=0, var_55_arg_1=0, var_56=0, var_56_arg_0=0, var_56_arg_1=0, var_56_arg_2=0, var_61=0, var_61_arg_0=0, var_68=0, var_68_arg_0=0, var_72_arg_0=0, var_72_arg_0 ? var_72_arg_1 : var_72_arg_2=0, var_72_arg_1=16, var_72_arg_2=0, var_73=2, var_73_arg_0=0, var_73_arg_1=13, var_73_arg_2=2, var_75=0, var_75_arg_0=0, var_81=1] [L221] SORT_1 var_72 = var_72_arg_0 ? var_72_arg_1 : var_72_arg_2; [L222] SORT_5 var_74_arg_0 = var_68; [L223] SORT_1 var_74_arg_1 = var_73; [L224] SORT_1 var_74_arg_2 = var_72; VAL [init_12_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_24_arg_1=1, init_29_arg_1=1, init_33_arg_1=0, init_35_arg_1=0, init_42_arg_1=0, init_47_arg_1=0, init_49_arg_1=0, init_58_arg_1=0, init_60_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_71_arg_1=0, input_107=6, input_112=19, input_114=14, input_129=12, input_140=3, input_144=10, input_147=11, input_152=1, input_155=4, input_158=17, input_173=9, input_176=7, input_2=16, input_3=2, input_4=13, input_6=18, input_7=20, input_8=8, input_9=15, input_94=2147483653, input_96=2, mask_SORT_1=15, mask_SORT_13=4294967295, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, msb_SORT_1=8, msb_SORT_13=2147483648, msb_SORT_206=2, msb_SORT_36=4, msb_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_10=0, var_101=0, var_14=0, var_149=0, var_14_arg_0=0, var_15=4, var_16=0, var_16_arg_0=0, var_16_arg_1=4, var_186=15, var_21=1, var_21_arg_0=0, var_21_arg_1=0, var_22=1, var_25=0, var_25_arg_0=1, var_26=0, var_26_arg_0=1, var_26_arg_1=0, var_27=1, var_27_arg_0=0, var_27_arg_1=0, var_30=1, var_30_arg_0=1, var_30_arg_1=1, var_31=1, var_31_arg_0=1, var_31_arg_1=1, var_37=0, var_37_arg_0=0, var_38=1, var_39=0, var_39_arg_0=0, var_39_arg_1=1, var_40=0, var_40_arg_0=0, var_40_arg_1=0, var_40_arg_2=0, var_43=2, var_44=0, var_44_arg_0=0, var_44_arg_1=2, var_45=0, var_45_arg_0=0, var_45_arg_1=0, var_45_arg_2=0, var_50=4, var_51=0, var_51_arg_0=0, var_51_arg_1=4, var_52=0, var_52_arg_0=0, var_52_arg_1=0, var_52_arg_2=0, var_53=3, var_54=0, var_54_arg_0=0, var_54_arg_1=3, var_55=0, var_55_arg_0=0, var_55_arg_1=0, var_56=0, var_56_arg_0=0, var_56_arg_1=0, var_56_arg_2=0, var_61=0, var_61_arg_0=0, var_68=0, var_68_arg_0=0, var_72=0, var_72_arg_0=0, var_72_arg_1=16, var_72_arg_2=0, var_73=2, var_73_arg_0=0, var_73_arg_1=13, var_73_arg_2=2, var_74_arg_0=0, var_74_arg_1=2, var_74_arg_2=0, var_75=0, var_75_arg_0=0, var_81=1] [L225] EXPR var_74_arg_0 ? var_74_arg_1 : var_74_arg_2 VAL [init_12_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_24_arg_1=1, init_29_arg_1=1, init_33_arg_1=0, init_35_arg_1=0, init_42_arg_1=0, init_47_arg_1=0, init_49_arg_1=0, init_58_arg_1=0, init_60_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_71_arg_1=0, input_107=6, input_112=19, input_114=14, input_129=12, input_140=3, input_144=10, input_147=11, input_152=1, input_155=4, input_158=17, input_173=9, input_176=7, input_2=16, input_3=2, input_4=13, input_6=18, input_7=20, input_8=8, input_9=15, input_94=2147483653, input_96=2, mask_SORT_1=15, mask_SORT_13=4294967295, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, msb_SORT_1=8, msb_SORT_13=2147483648, msb_SORT_206=2, msb_SORT_36=4, msb_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_10=0, var_101=0, var_14=0, var_149=0, var_14_arg_0=0, var_15=4, var_16=0, var_16_arg_0=0, var_16_arg_1=4, var_186=15, var_21=1, var_21_arg_0=0, var_21_arg_1=0, var_22=1, var_25=0, var_25_arg_0=1, var_26=0, var_26_arg_0=1, var_26_arg_1=0, var_27=1, var_27_arg_0=0, var_27_arg_1=0, var_30=1, var_30_arg_0=1, var_30_arg_1=1, var_31=1, var_31_arg_0=1, var_31_arg_1=1, var_37=0, var_37_arg_0=0, var_38=1, var_39=0, var_39_arg_0=0, var_39_arg_1=1, var_40=0, var_40_arg_0=0, var_40_arg_1=0, var_40_arg_2=0, var_43=2, var_44=0, var_44_arg_0=0, var_44_arg_1=2, var_45=0, var_45_arg_0=0, var_45_arg_1=0, var_45_arg_2=0, var_50=4, var_51=0, var_51_arg_0=0, var_51_arg_1=4, var_52=0, var_52_arg_0=0, var_52_arg_1=0, var_52_arg_2=0, var_53=3, var_54=0, var_54_arg_0=0, var_54_arg_1=3, var_55=0, var_55_arg_0=0, var_55_arg_1=0, var_56=0, var_56_arg_0=0, var_56_arg_1=0, var_56_arg_2=0, var_61=0, var_61_arg_0=0, var_68=0, var_68_arg_0=0, var_72=0, var_72_arg_0=0, var_72_arg_1=16, var_72_arg_2=0, var_73=2, var_73_arg_0=0, var_73_arg_1=13, var_73_arg_2=2, var_74_arg_0=0, var_74_arg_0 ? var_74_arg_1 : var_74_arg_2=0, var_74_arg_1=2, var_74_arg_2=0, var_75=0, var_75_arg_0=0, var_81=1] [L225] SORT_1 var_74 = var_74_arg_0 ? var_74_arg_1 : var_74_arg_2; [L226] SORT_5 var_67_arg_0 = var_61; [L227] SORT_1 var_67_arg_1 = state_65; [L228] SORT_1 var_67_arg_2 = state_63; VAL [init_12_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_24_arg_1=1, init_29_arg_1=1, init_33_arg_1=0, init_35_arg_1=0, init_42_arg_1=0, init_47_arg_1=0, init_49_arg_1=0, init_58_arg_1=0, init_60_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_71_arg_1=0, input_107=6, input_112=19, input_114=14, input_129=12, input_140=3, input_144=10, input_147=11, input_152=1, input_155=4, input_158=17, input_173=9, input_176=7, input_2=16, input_3=2, input_4=13, input_6=18, input_7=20, input_8=8, input_9=15, input_94=2147483653, input_96=2, mask_SORT_1=15, mask_SORT_13=4294967295, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, msb_SORT_1=8, msb_SORT_13=2147483648, msb_SORT_206=2, msb_SORT_36=4, msb_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_10=0, var_101=0, var_14=0, var_149=0, var_14_arg_0=0, var_15=4, var_16=0, var_16_arg_0=0, var_16_arg_1=4, var_186=15, var_21=1, var_21_arg_0=0, var_21_arg_1=0, var_22=1, var_25=0, var_25_arg_0=1, var_26=0, var_26_arg_0=1, var_26_arg_1=0, var_27=1, var_27_arg_0=0, var_27_arg_1=0, var_30=1, var_30_arg_0=1, var_30_arg_1=1, var_31=1, var_31_arg_0=1, var_31_arg_1=1, var_37=0, var_37_arg_0=0, var_38=1, var_39=0, var_39_arg_0=0, var_39_arg_1=1, var_40=0, var_40_arg_0=0, var_40_arg_1=0, var_40_arg_2=0, var_43=2, var_44=0, var_44_arg_0=0, var_44_arg_1=2, var_45=0, var_45_arg_0=0, var_45_arg_1=0, var_45_arg_2=0, var_50=4, var_51=0, var_51_arg_0=0, var_51_arg_1=4, var_52=0, var_52_arg_0=0, var_52_arg_1=0, var_52_arg_2=0, var_53=3, var_54=0, var_54_arg_0=0, var_54_arg_1=3, var_55=0, var_55_arg_0=0, var_55_arg_1=0, var_56=0, var_56_arg_0=0, var_56_arg_1=0, var_56_arg_2=0, var_61=0, var_61_arg_0=0, var_67_arg_0=0, var_67_arg_1=0, var_67_arg_2=0, var_68=0, var_68_arg_0=0, var_72=0, var_72_arg_0=0, var_72_arg_1=16, var_72_arg_2=0, var_73=2, var_73_arg_0=0, var_73_arg_1=13, var_73_arg_2=2, var_74=0, var_74_arg_0=0, var_74_arg_1=2, var_74_arg_2=0, var_75=0, var_75_arg_0=0, var_81=1] [L229] EXPR var_67_arg_0 ? var_67_arg_1 : var_67_arg_2 VAL [init_12_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_24_arg_1=1, init_29_arg_1=1, init_33_arg_1=0, init_35_arg_1=0, init_42_arg_1=0, init_47_arg_1=0, init_49_arg_1=0, init_58_arg_1=0, init_60_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_71_arg_1=0, input_107=6, input_112=19, input_114=14, input_129=12, input_140=3, input_144=10, input_147=11, input_152=1, input_155=4, input_158=17, input_173=9, input_176=7, input_2=16, input_3=2, input_4=13, input_6=18, input_7=20, input_8=8, input_9=15, input_94=2147483653, input_96=2, mask_SORT_1=15, mask_SORT_13=4294967295, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, msb_SORT_1=8, msb_SORT_13=2147483648, msb_SORT_206=2, msb_SORT_36=4, msb_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_10=0, var_101=0, var_14=0, var_149=0, var_14_arg_0=0, var_15=4, var_16=0, var_16_arg_0=0, var_16_arg_1=4, var_186=15, var_21=1, var_21_arg_0=0, var_21_arg_1=0, var_22=1, var_25=0, var_25_arg_0=1, var_26=0, var_26_arg_0=1, var_26_arg_1=0, var_27=1, var_27_arg_0=0, var_27_arg_1=0, var_30=1, var_30_arg_0=1, var_30_arg_1=1, var_31=1, var_31_arg_0=1, var_31_arg_1=1, var_37=0, var_37_arg_0=0, var_38=1, var_39=0, var_39_arg_0=0, var_39_arg_1=1, var_40=0, var_40_arg_0=0, var_40_arg_1=0, var_40_arg_2=0, var_43=2, var_44=0, var_44_arg_0=0, var_44_arg_1=2, var_45=0, var_45_arg_0=0, var_45_arg_1=0, var_45_arg_2=0, var_50=4, var_51=0, var_51_arg_0=0, var_51_arg_1=4, var_52=0, var_52_arg_0=0, var_52_arg_1=0, var_52_arg_2=0, var_53=3, var_54=0, var_54_arg_0=0, var_54_arg_1=3, var_55=0, var_55_arg_0=0, var_55_arg_1=0, var_56=0, var_56_arg_0=0, var_56_arg_1=0, var_56_arg_2=0, var_61=0, var_61_arg_0=0, var_67_arg_0=0, var_67_arg_0 ? var_67_arg_1 : var_67_arg_2=0, var_67_arg_1=0, var_67_arg_2=0, var_68=0, var_68_arg_0=0, var_72=0, var_72_arg_0=0, var_72_arg_1=16, var_72_arg_2=0, var_73=2, var_73_arg_0=0, var_73_arg_1=13, var_73_arg_2=2, var_74=0, var_74_arg_0=0, var_74_arg_1=2, var_74_arg_2=0, var_75=0, var_75_arg_0=0, var_81=1] [L229] SORT_1 var_67 = var_67_arg_0 ? var_67_arg_1 : var_67_arg_2; [L230] SORT_5 var_62_arg_0 = var_61; [L231] SORT_1 var_62_arg_1 = state_59; [L232] SORT_1 var_62_arg_2 = state_57; VAL [init_12_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_24_arg_1=1, init_29_arg_1=1, init_33_arg_1=0, init_35_arg_1=0, init_42_arg_1=0, init_47_arg_1=0, init_49_arg_1=0, init_58_arg_1=0, init_60_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_71_arg_1=0, input_107=6, input_112=19, input_114=14, input_129=12, input_140=3, input_144=10, input_147=11, input_152=1, input_155=4, input_158=17, input_173=9, input_176=7, input_2=16, input_3=2, input_4=13, input_6=18, input_7=20, input_8=8, input_9=15, input_94=2147483653, input_96=2, mask_SORT_1=15, mask_SORT_13=4294967295, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, msb_SORT_1=8, msb_SORT_13=2147483648, msb_SORT_206=2, msb_SORT_36=4, msb_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_10=0, var_101=0, var_14=0, var_149=0, var_14_arg_0=0, var_15=4, var_16=0, var_16_arg_0=0, var_16_arg_1=4, var_186=15, var_21=1, var_21_arg_0=0, var_21_arg_1=0, var_22=1, var_25=0, var_25_arg_0=1, var_26=0, var_26_arg_0=1, var_26_arg_1=0, var_27=1, var_27_arg_0=0, var_27_arg_1=0, var_30=1, var_30_arg_0=1, var_30_arg_1=1, var_31=1, var_31_arg_0=1, var_31_arg_1=1, var_37=0, var_37_arg_0=0, var_38=1, var_39=0, var_39_arg_0=0, var_39_arg_1=1, var_40=0, var_40_arg_0=0, var_40_arg_1=0, var_40_arg_2=0, var_43=2, var_44=0, var_44_arg_0=0, var_44_arg_1=2, var_45=0, var_45_arg_0=0, var_45_arg_1=0, var_45_arg_2=0, var_50=4, var_51=0, var_51_arg_0=0, var_51_arg_1=4, var_52=0, var_52_arg_0=0, var_52_arg_1=0, var_52_arg_2=0, var_53=3, var_54=0, var_54_arg_0=0, var_54_arg_1=3, var_55=0, var_55_arg_0=0, var_55_arg_1=0, var_56=0, var_56_arg_0=0, var_56_arg_1=0, var_56_arg_2=0, var_61=0, var_61_arg_0=0, var_62_arg_0=0, var_62_arg_1=0, var_62_arg_2=0, var_67=0, var_67_arg_0=0, var_67_arg_1=0, var_67_arg_2=0, var_68=0, var_68_arg_0=0, var_72=0, var_72_arg_0=0, var_72_arg_1=16, var_72_arg_2=0, var_73=2, var_73_arg_0=0, var_73_arg_1=13, var_73_arg_2=2, var_74=0, var_74_arg_0=0, var_74_arg_1=2, var_74_arg_2=0, var_75=0, var_75_arg_0=0, var_81=1] [L233] EXPR var_62_arg_0 ? var_62_arg_1 : var_62_arg_2 VAL [init_12_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_24_arg_1=1, init_29_arg_1=1, init_33_arg_1=0, init_35_arg_1=0, init_42_arg_1=0, init_47_arg_1=0, init_49_arg_1=0, init_58_arg_1=0, init_60_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_71_arg_1=0, input_107=6, input_112=19, input_114=14, input_129=12, input_140=3, input_144=10, input_147=11, input_152=1, input_155=4, input_158=17, input_173=9, input_176=7, input_2=16, input_3=2, input_4=13, input_6=18, input_7=20, input_8=8, input_9=15, input_94=2147483653, input_96=2, mask_SORT_1=15, mask_SORT_13=4294967295, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, msb_SORT_1=8, msb_SORT_13=2147483648, msb_SORT_206=2, msb_SORT_36=4, msb_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_10=0, var_101=0, var_14=0, var_149=0, var_14_arg_0=0, var_15=4, var_16=0, var_16_arg_0=0, var_16_arg_1=4, var_186=15, var_21=1, var_21_arg_0=0, var_21_arg_1=0, var_22=1, var_25=0, var_25_arg_0=1, var_26=0, var_26_arg_0=1, var_26_arg_1=0, var_27=1, var_27_arg_0=0, var_27_arg_1=0, var_30=1, var_30_arg_0=1, var_30_arg_1=1, var_31=1, var_31_arg_0=1, var_31_arg_1=1, var_37=0, var_37_arg_0=0, var_38=1, var_39=0, var_39_arg_0=0, var_39_arg_1=1, var_40=0, var_40_arg_0=0, var_40_arg_1=0, var_40_arg_2=0, var_43=2, var_44=0, var_44_arg_0=0, var_44_arg_1=2, var_45=0, var_45_arg_0=0, var_45_arg_1=0, var_45_arg_2=0, var_50=4, var_51=0, var_51_arg_0=0, var_51_arg_1=4, var_52=0, var_52_arg_0=0, var_52_arg_1=0, var_52_arg_2=0, var_53=3, var_54=0, var_54_arg_0=0, var_54_arg_1=3, var_55=0, var_55_arg_0=0, var_55_arg_1=0, var_56=0, var_56_arg_0=0, var_56_arg_1=0, var_56_arg_2=0, var_61=0, var_61_arg_0=0, var_62_arg_0=0, var_62_arg_0 ? var_62_arg_1 : var_62_arg_2=0, var_62_arg_1=0, var_62_arg_2=0, var_67=0, var_67_arg_0=0, var_67_arg_1=0, var_67_arg_2=0, var_68=0, var_68_arg_0=0, var_72=0, var_72_arg_0=0, var_72_arg_1=16, var_72_arg_2=0, var_73=2, var_73_arg_0=0, var_73_arg_1=13, var_73_arg_2=2, var_74=0, var_74_arg_0=0, var_74_arg_1=2, var_74_arg_2=0, var_75=0, var_75_arg_0=0, var_81=1] [L233] SORT_1 var_62 = var_62_arg_0 ? var_62_arg_1 : var_62_arg_2; [L234] SORT_5 var_69_arg_0 = var_68; [L235] SORT_1 var_69_arg_1 = var_67; [L236] SORT_1 var_69_arg_2 = var_62; VAL [init_12_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_24_arg_1=1, init_29_arg_1=1, init_33_arg_1=0, init_35_arg_1=0, init_42_arg_1=0, init_47_arg_1=0, init_49_arg_1=0, init_58_arg_1=0, init_60_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_71_arg_1=0, input_107=6, input_112=19, input_114=14, input_129=12, input_140=3, input_144=10, input_147=11, input_152=1, input_155=4, input_158=17, input_173=9, input_176=7, input_2=16, input_3=2, input_4=13, input_6=18, input_7=20, input_8=8, input_9=15, input_94=2147483653, input_96=2, mask_SORT_1=15, mask_SORT_13=4294967295, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, msb_SORT_1=8, msb_SORT_13=2147483648, msb_SORT_206=2, msb_SORT_36=4, msb_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_10=0, var_101=0, var_14=0, var_149=0, var_14_arg_0=0, var_15=4, var_16=0, var_16_arg_0=0, var_16_arg_1=4, var_186=15, var_21=1, var_21_arg_0=0, var_21_arg_1=0, var_22=1, var_25=0, var_25_arg_0=1, var_26=0, var_26_arg_0=1, var_26_arg_1=0, var_27=1, var_27_arg_0=0, var_27_arg_1=0, var_30=1, var_30_arg_0=1, var_30_arg_1=1, var_31=1, var_31_arg_0=1, var_31_arg_1=1, var_37=0, var_37_arg_0=0, var_38=1, var_39=0, var_39_arg_0=0, var_39_arg_1=1, var_40=0, var_40_arg_0=0, var_40_arg_1=0, var_40_arg_2=0, var_43=2, var_44=0, var_44_arg_0=0, var_44_arg_1=2, var_45=0, var_45_arg_0=0, var_45_arg_1=0, var_45_arg_2=0, var_50=4, var_51=0, var_51_arg_0=0, var_51_arg_1=4, var_52=0, var_52_arg_0=0, var_52_arg_1=0, var_52_arg_2=0, var_53=3, var_54=0, var_54_arg_0=0, var_54_arg_1=3, var_55=0, var_55_arg_0=0, var_55_arg_1=0, var_56=0, var_56_arg_0=0, var_56_arg_1=0, var_56_arg_2=0, var_61=0, var_61_arg_0=0, var_62=0, var_62_arg_0=0, var_62_arg_1=0, var_62_arg_2=0, var_67=0, var_67_arg_0=0, var_67_arg_1=0, var_67_arg_2=0, var_68=0, var_68_arg_0=0, var_69_arg_0=0, var_69_arg_1=0, var_69_arg_2=0, var_72=0, var_72_arg_0=0, var_72_arg_1=16, var_72_arg_2=0, var_73=2, var_73_arg_0=0, var_73_arg_1=13, var_73_arg_2=2, var_74=0, var_74_arg_0=0, var_74_arg_1=2, var_74_arg_2=0, var_75=0, var_75_arg_0=0, var_81=1] [L237] EXPR var_69_arg_0 ? var_69_arg_1 : var_69_arg_2 VAL [init_12_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_24_arg_1=1, init_29_arg_1=1, init_33_arg_1=0, init_35_arg_1=0, init_42_arg_1=0, init_47_arg_1=0, init_49_arg_1=0, init_58_arg_1=0, init_60_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_71_arg_1=0, input_107=6, input_112=19, input_114=14, input_129=12, input_140=3, input_144=10, input_147=11, input_152=1, input_155=4, input_158=17, input_173=9, input_176=7, input_2=16, input_3=2, input_4=13, input_6=18, input_7=20, input_8=8, input_9=15, input_94=2147483653, input_96=2, mask_SORT_1=15, mask_SORT_13=4294967295, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, msb_SORT_1=8, msb_SORT_13=2147483648, msb_SORT_206=2, msb_SORT_36=4, msb_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_10=0, var_101=0, var_14=0, var_149=0, var_14_arg_0=0, var_15=4, var_16=0, var_16_arg_0=0, var_16_arg_1=4, var_186=15, var_21=1, var_21_arg_0=0, var_21_arg_1=0, var_22=1, var_25=0, var_25_arg_0=1, var_26=0, var_26_arg_0=1, var_26_arg_1=0, var_27=1, var_27_arg_0=0, var_27_arg_1=0, var_30=1, var_30_arg_0=1, var_30_arg_1=1, var_31=1, var_31_arg_0=1, var_31_arg_1=1, var_37=0, var_37_arg_0=0, var_38=1, var_39=0, var_39_arg_0=0, var_39_arg_1=1, var_40=0, var_40_arg_0=0, var_40_arg_1=0, var_40_arg_2=0, var_43=2, var_44=0, var_44_arg_0=0, var_44_arg_1=2, var_45=0, var_45_arg_0=0, var_45_arg_1=0, var_45_arg_2=0, var_50=4, var_51=0, var_51_arg_0=0, var_51_arg_1=4, var_52=0, var_52_arg_0=0, var_52_arg_1=0, var_52_arg_2=0, var_53=3, var_54=0, var_54_arg_0=0, var_54_arg_1=3, var_55=0, var_55_arg_0=0, var_55_arg_1=0, var_56=0, var_56_arg_0=0, var_56_arg_1=0, var_56_arg_2=0, var_61=0, var_61_arg_0=0, var_62=0, var_62_arg_0=0, var_62_arg_1=0, var_62_arg_2=0, var_67=0, var_67_arg_0=0, var_67_arg_1=0, var_67_arg_2=0, var_68=0, var_68_arg_0=0, var_69_arg_0=0, var_69_arg_0 ? var_69_arg_1 : var_69_arg_2=0, var_69_arg_1=0, var_69_arg_2=0, var_72=0, var_72_arg_0=0, var_72_arg_1=16, var_72_arg_2=0, var_73=2, var_73_arg_0=0, var_73_arg_1=13, var_73_arg_2=2, var_74=0, var_74_arg_0=0, var_74_arg_1=2, var_74_arg_2=0, var_75=0, var_75_arg_0=0, var_81=1] [L237] SORT_1 var_69 = var_69_arg_0 ? var_69_arg_1 : var_69_arg_2; [L238] SORT_5 var_76_arg_0 = var_75; [L239] SORT_1 var_76_arg_1 = var_74; [L240] SORT_1 var_76_arg_2 = var_69; VAL [init_12_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_24_arg_1=1, init_29_arg_1=1, init_33_arg_1=0, init_35_arg_1=0, init_42_arg_1=0, init_47_arg_1=0, init_49_arg_1=0, init_58_arg_1=0, init_60_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_71_arg_1=0, input_107=6, input_112=19, input_114=14, input_129=12, input_140=3, input_144=10, input_147=11, input_152=1, input_155=4, input_158=17, input_173=9, input_176=7, input_2=16, input_3=2, input_4=13, input_6=18, input_7=20, input_8=8, input_9=15, input_94=2147483653, input_96=2, mask_SORT_1=15, mask_SORT_13=4294967295, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, msb_SORT_1=8, msb_SORT_13=2147483648, msb_SORT_206=2, msb_SORT_36=4, msb_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_10=0, var_101=0, var_14=0, var_149=0, var_14_arg_0=0, var_15=4, var_16=0, var_16_arg_0=0, var_16_arg_1=4, var_186=15, var_21=1, var_21_arg_0=0, var_21_arg_1=0, var_22=1, var_25=0, var_25_arg_0=1, var_26=0, var_26_arg_0=1, var_26_arg_1=0, var_27=1, var_27_arg_0=0, var_27_arg_1=0, var_30=1, var_30_arg_0=1, var_30_arg_1=1, var_31=1, var_31_arg_0=1, var_31_arg_1=1, var_37=0, var_37_arg_0=0, var_38=1, var_39=0, var_39_arg_0=0, var_39_arg_1=1, var_40=0, var_40_arg_0=0, var_40_arg_1=0, var_40_arg_2=0, var_43=2, var_44=0, var_44_arg_0=0, var_44_arg_1=2, var_45=0, var_45_arg_0=0, var_45_arg_1=0, var_45_arg_2=0, var_50=4, var_51=0, var_51_arg_0=0, var_51_arg_1=4, var_52=0, var_52_arg_0=0, var_52_arg_1=0, var_52_arg_2=0, var_53=3, var_54=0, var_54_arg_0=0, var_54_arg_1=3, var_55=0, var_55_arg_0=0, var_55_arg_1=0, var_56=0, var_56_arg_0=0, var_56_arg_1=0, var_56_arg_2=0, var_61=0, var_61_arg_0=0, var_62=0, var_62_arg_0=0, var_62_arg_1=0, var_62_arg_2=0, var_67=0, var_67_arg_0=0, var_67_arg_1=0, var_67_arg_2=0, var_68=0, var_68_arg_0=0, var_69=0, var_69_arg_0=0, var_69_arg_1=0, var_69_arg_2=0, var_72=0, var_72_arg_0=0, var_72_arg_1=16, var_72_arg_2=0, var_73=2, var_73_arg_0=0, var_73_arg_1=13, var_73_arg_2=2, var_74=0, var_74_arg_0=0, var_74_arg_1=2, var_74_arg_2=0, var_75=0, var_75_arg_0=0, var_76_arg_0=0, var_76_arg_1=0, var_76_arg_2=0, var_81=1] [L241] EXPR var_76_arg_0 ? var_76_arg_1 : var_76_arg_2 VAL [init_12_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_24_arg_1=1, init_29_arg_1=1, init_33_arg_1=0, init_35_arg_1=0, init_42_arg_1=0, init_47_arg_1=0, init_49_arg_1=0, init_58_arg_1=0, init_60_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_71_arg_1=0, input_107=6, input_112=19, input_114=14, input_129=12, input_140=3, input_144=10, input_147=11, input_152=1, input_155=4, input_158=17, input_173=9, input_176=7, input_2=16, input_3=2, input_4=13, input_6=18, input_7=20, input_8=8, input_9=15, input_94=2147483653, input_96=2, mask_SORT_1=15, mask_SORT_13=4294967295, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, msb_SORT_1=8, msb_SORT_13=2147483648, msb_SORT_206=2, msb_SORT_36=4, msb_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_10=0, var_101=0, var_14=0, var_149=0, var_14_arg_0=0, var_15=4, var_16=0, var_16_arg_0=0, var_16_arg_1=4, var_186=15, var_21=1, var_21_arg_0=0, var_21_arg_1=0, var_22=1, var_25=0, var_25_arg_0=1, var_26=0, var_26_arg_0=1, var_26_arg_1=0, var_27=1, var_27_arg_0=0, var_27_arg_1=0, var_30=1, var_30_arg_0=1, var_30_arg_1=1, var_31=1, var_31_arg_0=1, var_31_arg_1=1, var_37=0, var_37_arg_0=0, var_38=1, var_39=0, var_39_arg_0=0, var_39_arg_1=1, var_40=0, var_40_arg_0=0, var_40_arg_1=0, var_40_arg_2=0, var_43=2, var_44=0, var_44_arg_0=0, var_44_arg_1=2, var_45=0, var_45_arg_0=0, var_45_arg_1=0, var_45_arg_2=0, var_50=4, var_51=0, var_51_arg_0=0, var_51_arg_1=4, var_52=0, var_52_arg_0=0, var_52_arg_1=0, var_52_arg_2=0, var_53=3, var_54=0, var_54_arg_0=0, var_54_arg_1=3, var_55=0, var_55_arg_0=0, var_55_arg_1=0, var_56=0, var_56_arg_0=0, var_56_arg_1=0, var_56_arg_2=0, var_61=0, var_61_arg_0=0, var_62=0, var_62_arg_0=0, var_62_arg_1=0, var_62_arg_2=0, var_67=0, var_67_arg_0=0, var_67_arg_1=0, var_67_arg_2=0, var_68=0, var_68_arg_0=0, var_69=0, var_69_arg_0=0, var_69_arg_1=0, var_69_arg_2=0, var_72=0, var_72_arg_0=0, var_72_arg_1=16, var_72_arg_2=0, var_73=2, var_73_arg_0=0, var_73_arg_1=13, var_73_arg_2=2, var_74=0, var_74_arg_0=0, var_74_arg_1=2, var_74_arg_2=0, var_75=0, var_75_arg_0=0, var_76_arg_0=0, var_76_arg_0 ? var_76_arg_1 : var_76_arg_2=0, var_76_arg_1=0, var_76_arg_2=0, var_81=1] [L241] SORT_1 var_76 = var_76_arg_0 ? var_76_arg_1 : var_76_arg_2; [L242] var_76 = var_76 & mask_SORT_1 [L243] SORT_1 var_77_arg_0 = var_56; [L244] SORT_1 var_77_arg_1 = var_76; [L245] SORT_5 var_77 = var_77_arg_0 == var_77_arg_1; [L246] SORT_5 var_78_arg_0 = state_28; [L247] SORT_5 var_78_arg_1 = var_77; [L248] SORT_5 var_78 = var_78_arg_0 | var_78_arg_1; [L249] SORT_5 var_79_arg_0 = var_31; [L250] SORT_5 var_79_arg_1 = var_78; [L251] SORT_5 var_79 = var_79_arg_0 & var_79_arg_1; [L252] SORT_5 var_80_arg_0 = var_79; [L253] var_80_arg_0 = var_80_arg_0 & mask_SORT_5 [L254] SORT_13 var_80 = var_80_arg_0; [L255] SORT_13 var_82_arg_0 = var_80; [L256] SORT_13 var_82_arg_1 = var_81; [L257] SORT_5 var_82 = var_82_arg_0 == var_82_arg_1; [L258] SORT_5 var_85_arg_0 = var_82; [L259] SORT_5 var_85 = ~var_85_arg_0; [L260] SORT_5 var_86_arg_0 = var_22; [L261] SORT_5 var_86_arg_1 = var_85; [L262] SORT_5 var_86 = var_86_arg_0 & var_86_arg_1; [L263] var_86 = var_86 & mask_SORT_5 [L264] SORT_5 bad_87_arg_0 = var_86; [L265] CALL __VERIFIER_assert(!(bad_87_arg_0)) [L20] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L20] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 137 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 14.8s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 8710 SdHoareTripleChecker+Valid, 2.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8710 mSDsluCounter, 8055 SdHoareTripleChecker+Invalid, 2.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6058 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 406 IncrementalHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 1997 mSDtfsCounter, 406 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 98 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=163occurred in iteration=7, InterpolantAutomatonStates: 78, 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, 10 MinimizatonAttempts, 1524 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 2.0s SatisfiabilityAnalysisTime, 7.8s InterpolantComputationTime, 297 NumberOfCodeBlocks, 297 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 260 ConstructedInterpolants, 0 QuantifiedInterpolants, 989 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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 21:11:43,956 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/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_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/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_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_FIFO.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/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 64bit --witnessprinter.graph.data.programhash c16eea741307fcf998a7d8c15fea1df6c992fe7672606bd6ee824e0bc4e8768f --- 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 21:11:46,341 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 21:11:46,343 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 21:11:46,383 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 21:11:46,383 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 21:11:46,387 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 21:11:46,389 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 21:11:46,396 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 21:11:46,401 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 21:11:46,407 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 21:11:46,407 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 21:11:46,408 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 21:11:46,409 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 21:11:46,410 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 21:11:46,411 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 21:11:46,412 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 21:11:46,412 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 21:11:46,413 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 21:11:46,415 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 21:11:46,425 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 21:11:46,429 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 21:11:46,432 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 21:11:46,433 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 21:11:46,434 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 21:11:46,437 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 21:11:46,437 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 21:11:46,438 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 21:11:46,439 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 21:11:46,439 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 21:11:46,440 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 21:11:46,440 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 21:11:46,441 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 21:11:46,442 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 21:11:46,448 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 21:11:46,450 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 21:11:46,450 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 21:11:46,451 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 21:11:46,451 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 21:11:46,451 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 21:11:46,452 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 21:11:46,453 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 21:11:46,455 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-02 21:11:46,507 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 21:11:46,507 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 21:11:46,507 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 21:11:46,508 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 21:11:46,508 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 21:11:46,508 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 21:11:46,509 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 21:11:46,509 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 21:11:46,509 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 21:11:46,510 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 21:11:46,510 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 21:11:46,510 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 21:11:46,510 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 21:11:46,510 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 21:11:46,511 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-02 21:11:46,511 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-02 21:11:46,511 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-02 21:11:46,511 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 21:11:46,511 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 21:11:46,511 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 21:11:46,512 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 21:11:46,512 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 21:11:46,512 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 21:11:46,512 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 21:11:46,512 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 21:11:46,513 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 21:11:46,513 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 21:11:46,513 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-02 21:11:46,513 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-02 21:11:46,513 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 21:11:46,514 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 21:11:46,514 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 21:11:46,514 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-02 21:11:46,514 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_815318ac-8331-4cbc-a490-cefa7719b67a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c16eea741307fcf998a7d8c15fea1df6c992fe7672606bd6ee824e0bc4e8768f [2022-11-02 21:11:46,873 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 21:11:46,902 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 21:11:46,908 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 21:11:46,910 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 21:11:46,912 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 21:11:46,914 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_FIFO.c [2022-11-02 21:11:46,983 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/data/ceb332ca9/51685b87741b4e7d92b55f3dab0d98ab/FLAGea09f6c7c [2022-11-02 21:11:47,514 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 21:11:47,515 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_FIFO.c [2022-11-02 21:11:47,527 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/data/ceb332ca9/51685b87741b4e7d92b55f3dab0d98ab/FLAGea09f6c7c [2022-11-02 21:11:47,837 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/data/ceb332ca9/51685b87741b4e7d92b55f3dab0d98ab [2022-11-02 21:11:47,840 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 21:11:47,842 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 21:11:47,845 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 21:11:47,845 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 21:11:47,848 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 21:11:47,850 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:11:47" (1/1) ... [2022-11-02 21:11:47,851 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75fec6b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:11:47, skipping insertion in model container [2022-11-02 21:11:47,852 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:11:47" (1/1) ... [2022-11-02 21:11:47,859 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 21:11:47,915 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 21:11:48,127 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_815318ac-8331-4cbc-a490-cefa7719b67a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_FIFO.c[1107,1120] [2022-11-02 21:11:48,389 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:11:48,392 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 21:11:48,403 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_815318ac-8331-4cbc-a490-cefa7719b67a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_FIFO.c[1107,1120] [2022-11-02 21:11:48,492 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:11:48,505 INFO L208 MainTranslator]: Completed translation [2022-11-02 21:11:48,505 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:11:48 WrapperNode [2022-11-02 21:11:48,505 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 21:11:48,506 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 21:11:48,507 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 21:11:48,507 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 21:11:48,514 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:11:48" (1/1) ... [2022-11-02 21:11:48,560 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:11:48" (1/1) ... [2022-11-02 21:11:48,642 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1088 [2022-11-02 21:11:48,652 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 21:11:48,653 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 21:11:48,653 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 21:11:48,653 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 21:11:48,667 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:11:48" (1/1) ... [2022-11-02 21:11:48,667 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:11:48" (1/1) ... [2022-11-02 21:11:48,675 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:11:48" (1/1) ... [2022-11-02 21:11:48,675 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:11:48" (1/1) ... [2022-11-02 21:11:48,695 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:11:48" (1/1) ... [2022-11-02 21:11:48,706 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:11:48" (1/1) ... [2022-11-02 21:11:48,711 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:11:48" (1/1) ... [2022-11-02 21:11:48,715 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:11:48" (1/1) ... [2022-11-02 21:11:48,725 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 21:11:48,726 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 21:11:48,726 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 21:11:48,726 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 21:11:48,727 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:11:48" (1/1) ... [2022-11-02 21:11:48,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 21:11:48,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:11:48,784 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 21:11:48,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 21:11:48,838 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 21:11:48,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 21:11:49,144 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 21:11:49,146 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 21:11:50,001 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 21:11:50,011 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 21:11:50,012 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-02 21:11:50,014 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:11:50 BoogieIcfgContainer [2022-11-02 21:11:50,014 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 21:11:50,017 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 21:11:50,017 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 21:11:50,021 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 21:11:50,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 09:11:47" (1/3) ... [2022-11-02 21:11:50,022 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fa90907 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:11:50, skipping insertion in model container [2022-11-02 21:11:50,022 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:11:48" (2/3) ... [2022-11-02 21:11:50,023 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fa90907 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:11:50, skipping insertion in model container [2022-11-02 21:11:50,023 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:11:50" (3/3) ... [2022-11-02 21:11:50,024 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_FIFO.c [2022-11-02 21:11:50,045 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 21:11:50,045 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-02 21:11:50,104 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 21:11:50,111 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;@5ffa7fb4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 21:11:50,111 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-02 21:11:50,115 INFO L276 IsEmpty]: Start isEmpty. Operand has 137 states, 135 states have (on average 1.4962962962962962) internal successors, (202), 136 states have internal predecessors, (202), 0 states have call successors, (0), 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 21:11:50,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-02 21:11:50,122 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:11:50,123 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 21:11:50,123 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:11:50,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:50,128 INFO L85 PathProgramCache]: Analyzing trace with hash -1972187821, now seen corresponding path program 1 times [2022-11-02 21:11:50,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:11:50,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1253902476] [2022-11-02 21:11:50,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:50,142 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:11:50,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:11:50,147 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:11:50,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-02 21:11:50,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:50,481 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-02 21:11:50,491 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:11:50,585 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 21:11:50,585 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:11:50,586 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:11:50,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1253902476] [2022-11-02 21:11:50,588 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1253902476] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:11:50,588 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:11:50,588 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 21:11:50,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873614386] [2022-11-02 21:11:50,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:11:50,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 21:11:50,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:11:50,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 21:11:50,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 21:11:50,632 INFO L87 Difference]: Start difference. First operand has 137 states, 135 states have (on average 1.4962962962962962) internal successors, (202), 136 states have internal predecessors, (202), 0 states have call successors, (0), 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 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:11:50,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:11:50,770 INFO L93 Difference]: Finished difference Result 529 states and 791 transitions. [2022-11-02 21:11:50,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 21:11:50,773 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-11-02 21:11:50,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:11:50,785 INFO L225 Difference]: With dead ends: 529 [2022-11-02 21:11:50,785 INFO L226 Difference]: Without dead ends: 394 [2022-11-02 21:11:50,788 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:11:50,792 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 575 mSDsluCounter, 569 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 575 SdHoareTripleChecker+Valid, 761 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:11:50,793 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [575 Valid, 761 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:11:50,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2022-11-02 21:11:50,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 135. [2022-11-02 21:11:50,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 134 states have (on average 1.4776119402985075) internal successors, (198), 134 states have internal predecessors, (198), 0 states have call successors, (0), 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 21:11:50,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 198 transitions. [2022-11-02 21:11:50,841 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 198 transitions. Word has length 27 [2022-11-02 21:11:50,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:11:50,842 INFO L495 AbstractCegarLoop]: Abstraction has 135 states and 198 transitions. [2022-11-02 21:11:50,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:11:50,842 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 198 transitions. [2022-11-02 21:11:50,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-02 21:11:50,843 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:11:50,843 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 21:11:50,857 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-11-02 21:11:51,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:11:51,057 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:11:51,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:51,058 INFO L85 PathProgramCache]: Analyzing trace with hash -2106201327, now seen corresponding path program 1 times [2022-11-02 21:11:51,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:11:51,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1167417465] [2022-11-02 21:11:51,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:51,059 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:11:51,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:11:51,060 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:11:51,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-02 21:11:51,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:51,388 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-02 21:11:51,392 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:11:51,444 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 21:11:51,444 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:11:51,444 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:11:51,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1167417465] [2022-11-02 21:11:51,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1167417465] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:11:51,445 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:11:51,445 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:11:51,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568136261] [2022-11-02 21:11:51,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:11:51,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:11:51,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:11:51,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:11:51,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:11:51,448 INFO L87 Difference]: Start difference. First operand 135 states and 198 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 21:11:51,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:11:51,565 INFO L93 Difference]: Finished difference Result 526 states and 776 transitions. [2022-11-02 21:11:51,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:11:51,566 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 21:11:51,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:11:51,568 INFO L225 Difference]: With dead ends: 526 [2022-11-02 21:11:51,569 INFO L226 Difference]: Without dead ends: 395 [2022-11-02 21:11:51,570 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-02 21:11:51,571 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 762 mSDsluCounter, 945 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 762 SdHoareTripleChecker+Valid, 1138 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:11:51,572 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [762 Valid, 1138 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:11:51,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2022-11-02 21:11:51,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 137. [2022-11-02 21:11:51,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 136 states have (on average 1.4705882352941178) internal successors, (200), 136 states have internal predecessors, (200), 0 states have call successors, (0), 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 21:11:51,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 200 transitions. [2022-11-02 21:11:51,584 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 200 transitions. Word has length 27 [2022-11-02 21:11:51,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:11:51,584 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 200 transitions. [2022-11-02 21:11:51,585 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 21:11:51,585 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 200 transitions. [2022-11-02 21:11:51,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-02 21:11:51,586 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:11:51,586 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 21:11:51,609 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-02 21:11:51,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:11:51,804 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:11:51,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:51,805 INFO L85 PathProgramCache]: Analyzing trace with hash -1887346609, now seen corresponding path program 1 times [2022-11-02 21:11:51,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:11:51,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [599873430] [2022-11-02 21:11:51,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:51,806 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:11:51,806 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:11:51,807 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:11:51,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-02 21:11:52,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:52,072 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-02 21:11:52,076 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:11:52,149 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 21:11:52,152 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:11:52,152 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:11:52,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [599873430] [2022-11-02 21:11:52,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [599873430] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:11:52,158 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:11:52,158 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 21:11:52,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675569251] [2022-11-02 21:11:52,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:11:52,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:11:52,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:11:52,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:11:52,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:11:52,160 INFO L87 Difference]: Start difference. First operand 137 states and 200 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 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 21:11:52,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:11:52,354 INFO L93 Difference]: Finished difference Result 528 states and 778 transitions. [2022-11-02 21:11:52,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 21:11:52,355 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 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 21:11:52,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:11:52,357 INFO L225 Difference]: With dead ends: 528 [2022-11-02 21:11:52,357 INFO L226 Difference]: Without dead ends: 397 [2022-11-02 21:11:52,358 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-11-02 21:11:52,359 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 950 mSDsluCounter, 1318 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 950 SdHoareTripleChecker+Valid, 1512 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:11:52,360 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [950 Valid, 1512 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:11:52,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2022-11-02 21:11:52,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 139. [2022-11-02 21:11:52,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 138 states have (on average 1.463768115942029) internal successors, (202), 138 states have internal predecessors, (202), 0 states have call successors, (0), 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 21:11:52,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 202 transitions. [2022-11-02 21:11:52,368 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 202 transitions. Word has length 27 [2022-11-02 21:11:52,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:11:52,369 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 202 transitions. [2022-11-02 21:11:52,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 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 21:11:52,369 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 202 transitions. [2022-11-02 21:11:52,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-02 21:11:52,370 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:11:52,370 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 21:11:52,387 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-02 21:11:52,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:11:52,583 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:11:52,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:52,584 INFO L85 PathProgramCache]: Analyzing trace with hash 1589972237, now seen corresponding path program 1 times [2022-11-02 21:11:52,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:11:52,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1277370275] [2022-11-02 21:11:52,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:52,584 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:11:52,585 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:11:52,585 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:11:52,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-02 21:11:52,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:52,821 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-02 21:11:52,826 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:11:52,905 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 21:11:52,905 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:11:52,905 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:11:52,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1277370275] [2022-11-02 21:11:52,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1277370275] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:11:52,906 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:11:52,906 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:11:52,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350091729] [2022-11-02 21:11:52,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:11:52,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:11:52,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:11:52,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:11:52,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:11:52,908 INFO L87 Difference]: Start difference. First operand 139 states and 202 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 21:11:53,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:11:53,228 INFO L93 Difference]: Finished difference Result 526 states and 774 transitions. [2022-11-02 21:11:53,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:11:53,228 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 21:11:53,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:11:53,230 INFO L225 Difference]: With dead ends: 526 [2022-11-02 21:11:53,230 INFO L226 Difference]: Without dead ends: 395 [2022-11-02 21:11:53,231 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-02 21:11:53,232 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 746 mSDsluCounter, 882 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 746 SdHoareTripleChecker+Valid, 1052 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-02 21:11:53,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [746 Valid, 1052 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-02 21:11:53,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2022-11-02 21:11:53,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 141. [2022-11-02 21:11:53,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 140 states have (on average 1.457142857142857) internal successors, (204), 140 states have internal predecessors, (204), 0 states have call successors, (0), 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 21:11:53,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 204 transitions. [2022-11-02 21:11:53,240 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 204 transitions. Word has length 27 [2022-11-02 21:11:53,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:11:53,240 INFO L495 AbstractCegarLoop]: Abstraction has 141 states and 204 transitions. [2022-11-02 21:11:53,241 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 21:11:53,241 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 204 transitions. [2022-11-02 21:11:53,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-02 21:11:53,242 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:11:53,242 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 21:11:53,259 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-02 21:11:53,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:11:53,455 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:11:53,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:53,455 INFO L85 PathProgramCache]: Analyzing trace with hash -404172469, now seen corresponding path program 1 times [2022-11-02 21:11:53,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:11:53,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [632434384] [2022-11-02 21:11:53,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:53,457 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:11:53,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:11:53,458 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:11:53,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-02 21:11:53,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:53,696 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-02 21:11:53,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:11:53,784 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 21:11:53,784 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:11:53,784 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:11:53,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [632434384] [2022-11-02 21:11:53,786 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [632434384] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:11:53,786 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:11:53,787 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 21:11:53,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681579578] [2022-11-02 21:11:53,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:11:53,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 21:11:53,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:11:53,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 21:11:53,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 21:11:53,797 INFO L87 Difference]: Start difference. First operand 141 states and 204 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:11:54,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:11:54,064 INFO L93 Difference]: Finished difference Result 525 states and 772 transitions. [2022-11-02 21:11:54,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 21:11:54,065 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-11-02 21:11:54,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:11:54,066 INFO L225 Difference]: With dead ends: 525 [2022-11-02 21:11:54,067 INFO L226 Difference]: Without dead ends: 394 [2022-11-02 21:11:54,067 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:11:54,068 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 550 mSDsluCounter, 505 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 550 SdHoareTripleChecker+Valid, 678 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 21:11:54,068 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [550 Valid, 678 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 21:11:54,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2022-11-02 21:11:54,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 143. [2022-11-02 21:11:54,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 142 states have (on average 1.4507042253521127) internal successors, (206), 142 states have internal predecessors, (206), 0 states have call successors, (0), 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 21:11:54,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 206 transitions. [2022-11-02 21:11:54,076 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 206 transitions. Word has length 27 [2022-11-02 21:11:54,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:11:54,076 INFO L495 AbstractCegarLoop]: Abstraction has 143 states and 206 transitions. [2022-11-02 21:11:54,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:11:54,076 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 206 transitions. [2022-11-02 21:11:54,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-02 21:11:54,077 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:11:54,077 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 21:11:54,094 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-02 21:11:54,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:11:54,290 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:11:54,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:54,290 INFO L85 PathProgramCache]: Analyzing trace with hash -1425240823, now seen corresponding path program 1 times [2022-11-02 21:11:54,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:11:54,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [675819732] [2022-11-02 21:11:54,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:54,291 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:11:54,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:11:54,294 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:11:54,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-02 21:11:54,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:54,529 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-02 21:11:54,534 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:11:54,609 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 21:11:54,609 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:11:54,610 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:11:54,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [675819732] [2022-11-02 21:11:54,610 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [675819732] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:11:54,610 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:11:54,611 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:11:54,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426675526] [2022-11-02 21:11:54,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:11:54,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:11:54,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:11:54,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:11:54,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:11:54,613 INFO L87 Difference]: Start difference. First operand 143 states and 206 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 21:11:54,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:11:54,902 INFO L93 Difference]: Finished difference Result 534 states and 784 transitions. [2022-11-02 21:11:54,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:11:54,904 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 21:11:54,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:11:54,905 INFO L225 Difference]: With dead ends: 534 [2022-11-02 21:11:54,905 INFO L226 Difference]: Without dead ends: 403 [2022-11-02 21:11:54,906 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-02 21:11:54,906 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 748 mSDsluCounter, 877 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 748 SdHoareTripleChecker+Valid, 1049 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 21:11:54,907 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [748 Valid, 1049 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 21:11:54,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2022-11-02 21:11:54,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 145. [2022-11-02 21:11:54,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 144 states have (on average 1.4444444444444444) internal successors, (208), 144 states have internal predecessors, (208), 0 states have call successors, (0), 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 21:11:54,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 208 transitions. [2022-11-02 21:11:54,912 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 208 transitions. Word has length 27 [2022-11-02 21:11:54,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:11:54,913 INFO L495 AbstractCegarLoop]: Abstraction has 145 states and 208 transitions. [2022-11-02 21:11:54,913 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 21:11:54,913 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 208 transitions. [2022-11-02 21:11:54,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-02 21:11:54,914 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:11:54,914 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 21:11:54,931 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-02 21:11:55,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:11:55,132 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:11:55,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:55,132 INFO L85 PathProgramCache]: Analyzing trace with hash 1858609223, now seen corresponding path program 1 times [2022-11-02 21:11:55,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:11:55,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [195670935] [2022-11-02 21:11:55,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:55,133 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:11:55,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:11:55,138 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:11:55,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-02 21:11:55,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:55,363 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-02 21:11:55,366 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:11:55,440 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 21:11:55,440 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:11:55,440 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:11:55,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [195670935] [2022-11-02 21:11:55,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [195670935] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:11:55,441 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:11:55,441 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:11:55,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636848129] [2022-11-02 21:11:55,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:11:55,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:11:55,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:11:55,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:11:55,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:11:55,443 INFO L87 Difference]: Start difference. First operand 145 states and 208 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 21:11:55,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:11:55,728 INFO L93 Difference]: Finished difference Result 534 states and 783 transitions. [2022-11-02 21:11:55,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:11:55,729 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 21:11:55,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:11:55,730 INFO L225 Difference]: With dead ends: 534 [2022-11-02 21:11:55,731 INFO L226 Difference]: Without dead ends: 403 [2022-11-02 21:11:55,731 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-02 21:11:55,732 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 741 mSDsluCounter, 873 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 741 SdHoareTripleChecker+Valid, 1048 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 21:11:55,732 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [741 Valid, 1048 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 21:11:55,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2022-11-02 21:11:55,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 147. [2022-11-02 21:11:55,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 146 states have (on average 1.4383561643835616) internal successors, (210), 146 states have internal predecessors, (210), 0 states have call successors, (0), 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 21:11:55,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 210 transitions. [2022-11-02 21:11:55,739 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 210 transitions. Word has length 27 [2022-11-02 21:11:55,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:11:55,739 INFO L495 AbstractCegarLoop]: Abstraction has 147 states and 210 transitions. [2022-11-02 21:11:55,739 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 21:11:55,739 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 210 transitions. [2022-11-02 21:11:55,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-02 21:11:55,740 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:11:55,740 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 21:11:55,760 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-02 21:11:55,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:11:55,954 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:11:55,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:55,955 INFO L85 PathProgramCache]: Analyzing trace with hash 2116774661, now seen corresponding path program 1 times [2022-11-02 21:11:55,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:11:55,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1900156893] [2022-11-02 21:11:55,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:55,956 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:11:55,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:11:55,957 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:11:55,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-02 21:11:56,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:56,197 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-02 21:11:56,200 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:11:56,285 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 21:11:56,286 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:11:56,287 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:11:56,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1900156893] [2022-11-02 21:11:56,287 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1900156893] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:11:56,287 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:11:56,288 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:11:56,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631557135] [2022-11-02 21:11:56,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:11:56,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:11:56,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:11:56,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:11:56,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:11:56,289 INFO L87 Difference]: Start difference. First operand 147 states and 210 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 21:11:56,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:11:56,600 INFO L93 Difference]: Finished difference Result 534 states and 782 transitions. [2022-11-02 21:11:56,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:11:56,601 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 21:11:56,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:11:56,603 INFO L225 Difference]: With dead ends: 534 [2022-11-02 21:11:56,603 INFO L226 Difference]: Without dead ends: 403 [2022-11-02 21:11:56,604 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-02 21:11:56,604 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 729 mSDsluCounter, 859 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 729 SdHoareTripleChecker+Valid, 1038 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-02 21:11:56,605 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [729 Valid, 1038 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-02 21:11:56,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2022-11-02 21:11:56,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 151. [2022-11-02 21:11:56,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 150 states have (on average 1.4333333333333333) internal successors, (215), 150 states have internal predecessors, (215), 0 states have call successors, (0), 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 21:11:56,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 215 transitions. [2022-11-02 21:11:56,611 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 215 transitions. Word has length 27 [2022-11-02 21:11:56,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:11:56,611 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 215 transitions. [2022-11-02 21:11:56,611 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 21:11:56,611 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 215 transitions. [2022-11-02 21:11:56,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-02 21:11:56,612 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:11:56,612 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 21:11:56,629 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2022-11-02 21:11:56,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:11:56,824 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:11:56,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:56,825 INFO L85 PathProgramCache]: Analyzing trace with hash 1307428035, now seen corresponding path program 1 times [2022-11-02 21:11:56,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:11:56,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2057301690] [2022-11-02 21:11:56,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:56,826 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:11:56,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:11:56,827 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:11:56,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-02 21:11:57,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:57,045 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-02 21:11:57,048 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:11:57,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:11:57,126 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:11:57,127 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:11:57,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2057301690] [2022-11-02 21:11:57,127 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2057301690] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:11:57,127 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:11:57,127 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:11:57,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825439392] [2022-11-02 21:11:57,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:11:57,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:11:57,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:11:57,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:11:57,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:11:57,130 INFO L87 Difference]: Start difference. First operand 151 states and 215 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 21:11:57,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:11:57,393 INFO L93 Difference]: Finished difference Result 534 states and 781 transitions. [2022-11-02 21:11:57,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:11:57,394 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 21:11:57,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:11:57,396 INFO L225 Difference]: With dead ends: 534 [2022-11-02 21:11:57,396 INFO L226 Difference]: Without dead ends: 403 [2022-11-02 21:11:57,396 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-02 21:11:57,397 INFO L413 NwaCegarLoop]: 182 mSDtfsCounter, 722 mSDsluCounter, 855 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 722 SdHoareTripleChecker+Valid, 1037 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 21:11:57,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [722 Valid, 1037 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 21:11:57,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2022-11-02 21:11:57,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 153. [2022-11-02 21:11:57,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 152 states have (on average 1.4276315789473684) internal successors, (217), 152 states have internal predecessors, (217), 0 states have call successors, (0), 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 21:11:57,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 217 transitions. [2022-11-02 21:11:57,403 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 217 transitions. Word has length 27 [2022-11-02 21:11:57,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:11:57,404 INFO L495 AbstractCegarLoop]: Abstraction has 153 states and 217 transitions. [2022-11-02 21:11:57,404 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 21:11:57,404 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 217 transitions. [2022-11-02 21:11:57,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-02 21:11:57,405 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:11:57,405 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 21:11:57,424 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-02 21:11:57,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:11:57,606 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:11:57,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:57,606 INFO L85 PathProgramCache]: Analyzing trace with hash 1364686337, now seen corresponding path program 1 times [2022-11-02 21:11:57,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:11:57,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [440002178] [2022-11-02 21:11:57,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:57,607 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:11:57,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:11:57,608 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:11:57,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-02 21:11:57,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:57,812 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-02 21:11:57,815 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:11:57,901 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 21:11:57,901 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:11:57,901 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:11:57,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [440002178] [2022-11-02 21:11:57,902 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [440002178] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:11:57,902 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:11:57,902 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:11:57,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321121246] [2022-11-02 21:11:57,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:11:57,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:11:57,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:11:57,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:11:57,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:11:57,904 INFO L87 Difference]: Start difference. First operand 153 states and 217 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 21:11:58,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:11:58,192 INFO L93 Difference]: Finished difference Result 534 states and 780 transitions. [2022-11-02 21:11:58,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:11:58,193 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 21:11:58,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:11:58,195 INFO L225 Difference]: With dead ends: 534 [2022-11-02 21:11:58,195 INFO L226 Difference]: Without dead ends: 403 [2022-11-02 21:11:58,195 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-02 21:11:58,196 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 715 mSDsluCounter, 851 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 715 SdHoareTripleChecker+Valid, 1036 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 21:11:58,196 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [715 Valid, 1036 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 21:11:58,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2022-11-02 21:11:58,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 155. [2022-11-02 21:11:58,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 154 states have (on average 1.422077922077922) internal successors, (219), 154 states have internal predecessors, (219), 0 states have call successors, (0), 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 21:11:58,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 219 transitions. [2022-11-02 21:11:58,203 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 219 transitions. Word has length 27 [2022-11-02 21:11:58,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:11:58,203 INFO L495 AbstractCegarLoop]: Abstraction has 155 states and 219 transitions. [2022-11-02 21:11:58,204 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 21:11:58,204 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 219 transitions. [2022-11-02 21:11:58,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-02 21:11:58,204 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:11:58,205 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 21:11:58,223 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (11)] Ended with exit code 0 [2022-11-02 21:11:58,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:11:58,418 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:11:58,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:58,418 INFO L85 PathProgramCache]: Analyzing trace with hash 1364745919, now seen corresponding path program 1 times [2022-11-02 21:11:58,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:11:58,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2035687145] [2022-11-02 21:11:58,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:58,419 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:11:58,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:11:58,420 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:11:58,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-11-02 21:11:58,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:58,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 47 conjunts are in the unsatisfiable core [2022-11-02 21:11:58,615 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:11:59,089 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 21:11:59,089 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:11:59,089 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:11:59,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2035687145] [2022-11-02 21:11:59,090 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2035687145] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:11:59,090 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:11:59,090 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:11:59,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22510487] [2022-11-02 21:11:59,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:11:59,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:11:59,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:11:59,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:11:59,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:11:59,093 INFO L87 Difference]: Start difference. First operand 155 states and 219 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 21:11:59,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:11:59,386 INFO L93 Difference]: Finished difference Result 287 states and 414 transitions. [2022-11-02 21:11:59,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:11:59,387 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 21:11:59,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:11:59,387 INFO L225 Difference]: With dead ends: 287 [2022-11-02 21:11:59,388 INFO L226 Difference]: Without dead ends: 285 [2022-11-02 21:11:59,388 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-02 21:11:59,389 INFO L413 NwaCegarLoop]: 184 mSDtfsCounter, 530 mSDsluCounter, 514 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 530 SdHoareTripleChecker+Valid, 698 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 21:11:59,389 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [530 Valid, 698 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 21:11:59,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2022-11-02 21:11:59,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 157. [2022-11-02 21:11:59,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 156 states have (on average 1.4166666666666667) internal successors, (221), 156 states have internal predecessors, (221), 0 states have call successors, (0), 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 21:11:59,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 221 transitions. [2022-11-02 21:11:59,395 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 221 transitions. Word has length 27 [2022-11-02 21:11:59,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:11:59,395 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 221 transitions. [2022-11-02 21:11:59,395 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 21:11:59,396 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 221 transitions. [2022-11-02 21:11:59,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-02 21:11:59,398 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:11:59,398 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:11:59,415 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-11-02 21:11:59,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:11:59,615 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:11:59,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:59,615 INFO L85 PathProgramCache]: Analyzing trace with hash -389837389, now seen corresponding path program 1 times [2022-11-02 21:11:59,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:11:59,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [580443412] [2022-11-02 21:11:59,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:59,617 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:11:59,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:11:59,618 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:11:59,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-02 21:12:00,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:00,087 INFO L263 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-02 21:12:00,097 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:12:00,233 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:00,233 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:12:00,234 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:12:00,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [580443412] [2022-11-02 21:12:00,234 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [580443412] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:00,234 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:00,234 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 21:12:00,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396914068] [2022-11-02 21:12:00,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:00,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 21:12:00,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:12:00,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 21:12:00,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 21:12:00,237 INFO L87 Difference]: Start difference. First operand 157 states and 221 transitions. Second operand has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:12:00,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:00,483 INFO L93 Difference]: Finished difference Result 523 states and 764 transitions. [2022-11-02 21:12:00,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 21:12:00,483 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 156 [2022-11-02 21:12:00,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:00,485 INFO L225 Difference]: With dead ends: 523 [2022-11-02 21:12:00,485 INFO L226 Difference]: Without dead ends: 392 [2022-11-02 21:12:00,486 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:12:00,486 INFO L413 NwaCegarLoop]: 190 mSDtfsCounter, 501 mSDsluCounter, 480 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 501 SdHoareTripleChecker+Valid, 670 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:00,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [501 Valid, 670 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 21:12:00,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2022-11-02 21:12:00,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 159. [2022-11-02 21:12:00,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 158 states have (on average 1.4113924050632911) internal successors, (223), 158 states have internal predecessors, (223), 0 states have call successors, (0), 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 21:12:00,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 223 transitions. [2022-11-02 21:12:00,492 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 223 transitions. Word has length 156 [2022-11-02 21:12:00,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:00,494 INFO L495 AbstractCegarLoop]: Abstraction has 159 states and 223 transitions. [2022-11-02 21:12:00,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:12:00,495 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 223 transitions. [2022-11-02 21:12:00,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-02 21:12:00,501 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:00,501 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:12:00,526 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-11-02 21:12:00,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:12:00,724 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:12:00,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:00,724 INFO L85 PathProgramCache]: Analyzing trace with hash -1337889355, now seen corresponding path program 1 times [2022-11-02 21:12:00,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:12:00,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1355765270] [2022-11-02 21:12:00,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:00,725 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:12:00,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:12:00,726 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:12:00,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-11-02 21:12:01,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:01,175 INFO L263 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-02 21:12:01,181 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:12:01,341 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:01,341 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:12:01,342 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:12:01,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1355765270] [2022-11-02 21:12:01,342 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1355765270] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:01,342 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:01,342 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:12:01,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061131598] [2022-11-02 21:12:01,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:01,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:12:01,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:12:01,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:12:01,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:12:01,344 INFO L87 Difference]: Start difference. First operand 159 states and 223 transitions. Second operand has 5 states, 5 states have (on average 31.2) internal successors, (156), 5 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:12:01,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:01,489 INFO L93 Difference]: Finished difference Result 296 states and 426 transitions. [2022-11-02 21:12:01,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 21:12:01,491 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 5 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 156 [2022-11-02 21:12:01,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:01,492 INFO L225 Difference]: With dead ends: 296 [2022-11-02 21:12:01,492 INFO L226 Difference]: Without dead ends: 165 [2022-11-02 21:12:01,492 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:12:01,493 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 6 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 732 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 18 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:01,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 732 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 18 Unchecked, 0.1s Time] [2022-11-02 21:12:01,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2022-11-02 21:12:01,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2022-11-02 21:12:01,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 164 states have (on average 1.4085365853658536) internal successors, (231), 164 states have internal predecessors, (231), 0 states have call successors, (0), 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 21:12:01,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 231 transitions. [2022-11-02 21:12:01,499 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 231 transitions. Word has length 156 [2022-11-02 21:12:01,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:01,499 INFO L495 AbstractCegarLoop]: Abstraction has 165 states and 231 transitions. [2022-11-02 21:12:01,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 5 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:12:01,499 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 231 transitions. [2022-11-02 21:12:01,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-02 21:12:01,501 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:01,501 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:12:01,519 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-11-02 21:12:01,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:12:01,718 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:12:01,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:01,719 INFO L85 PathProgramCache]: Analyzing trace with hash -476055753, now seen corresponding path program 1 times [2022-11-02 21:12:01,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:12:01,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [275225238] [2022-11-02 21:12:01,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:01,721 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:12:01,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:12:01,722 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:12:01,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-11-02 21:12:02,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:02,200 INFO L263 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-02 21:12:02,208 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:12:02,396 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:02,397 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:12:02,397 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:12:02,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [275225238] [2022-11-02 21:12:02,397 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [275225238] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:02,397 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:02,398 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:12:02,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448006831] [2022-11-02 21:12:02,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:02,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:12:02,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:12:02,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:12:02,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:12:02,399 INFO L87 Difference]: Start difference. First operand 165 states and 231 transitions. Second operand has 5 states, 5 states have (on average 31.2) internal successors, (156), 5 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:12:02,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:02,523 INFO L93 Difference]: Finished difference Result 300 states and 431 transitions. [2022-11-02 21:12:02,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:12:02,524 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 5 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 156 [2022-11-02 21:12:02,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:02,525 INFO L225 Difference]: With dead ends: 300 [2022-11-02 21:12:02,525 INFO L226 Difference]: Without dead ends: 169 [2022-11-02 21:12:02,526 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:12:02,526 INFO L413 NwaCegarLoop]: 188 mSDtfsCounter, 7 mSDsluCounter, 532 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 720 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 18 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:02,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 720 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 18 Unchecked, 0.1s Time] [2022-11-02 21:12:02,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2022-11-02 21:12:02,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169. [2022-11-02 21:12:02,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 168 states have (on average 1.4047619047619047) internal successors, (236), 168 states have internal predecessors, (236), 0 states have call successors, (0), 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 21:12:02,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 236 transitions. [2022-11-02 21:12:02,533 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 236 transitions. Word has length 156 [2022-11-02 21:12:02,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:02,533 INFO L495 AbstractCegarLoop]: Abstraction has 169 states and 236 transitions. [2022-11-02 21:12:02,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 5 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:12:02,534 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 236 transitions. [2022-11-02 21:12:02,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-02 21:12:02,535 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:02,536 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:12:02,558 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-11-02 21:12:02,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:12:02,753 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:12:02,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:02,754 INFO L85 PathProgramCache]: Analyzing trace with hash -1758228039, now seen corresponding path program 1 times [2022-11-02 21:12:02,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:12:02,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [179999404] [2022-11-02 21:12:02,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:02,755 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:12:02,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:12:02,757 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:12:02,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-11-02 21:12:03,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:03,224 INFO L263 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-02 21:12:03,230 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:12:03,428 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:03,429 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:12:03,429 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:12:03,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [179999404] [2022-11-02 21:12:03,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [179999404] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:03,429 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:03,430 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 21:12:03,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685911483] [2022-11-02 21:12:03,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:03,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 21:12:03,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:12:03,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 21:12:03,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-02 21:12:03,432 INFO L87 Difference]: Start difference. First operand 169 states and 236 transitions. Second operand has 7 states, 7 states have (on average 22.285714285714285) internal successors, (156), 7 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:12:03,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:03,546 INFO L93 Difference]: Finished difference Result 310 states and 443 transitions. [2022-11-02 21:12:03,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:12:03,547 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.285714285714285) internal successors, (156), 7 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 156 [2022-11-02 21:12:03,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:03,548 INFO L225 Difference]: With dead ends: 310 [2022-11-02 21:12:03,548 INFO L226 Difference]: Without dead ends: 179 [2022-11-02 21:12:03,549 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-02 21:12:03,549 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 12 mSDsluCounter, 715 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 901 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 43 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:03,549 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 901 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 43 Unchecked, 0.1s Time] [2022-11-02 21:12:03,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2022-11-02 21:12:03,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2022-11-02 21:12:03,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 178 states have (on average 1.3932584269662922) internal successors, (248), 178 states have internal predecessors, (248), 0 states have call successors, (0), 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 21:12:03,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 248 transitions. [2022-11-02 21:12:03,554 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 248 transitions. Word has length 156 [2022-11-02 21:12:03,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:03,554 INFO L495 AbstractCegarLoop]: Abstraction has 179 states and 248 transitions. [2022-11-02 21:12:03,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.285714285714285) internal successors, (156), 7 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:12:03,555 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 248 transitions. [2022-11-02 21:12:03,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-02 21:12:03,556 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:03,556 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:12:03,573 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-11-02 21:12:03,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:12:03,773 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:12:03,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:03,773 INFO L85 PathProgramCache]: Analyzing trace with hash -36225353, now seen corresponding path program 1 times [2022-11-02 21:12:03,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:12:03,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1581401781] [2022-11-02 21:12:03,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:03,774 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:12:03,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:12:03,775 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:12:03,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-11-02 21:12:04,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:04,247 INFO L263 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-02 21:12:04,254 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:12:04,432 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:04,432 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:12:04,432 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:12:04,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1581401781] [2022-11-02 21:12:04,433 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1581401781] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:04,433 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:04,433 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 21:12:04,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726917860] [2022-11-02 21:12:04,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:04,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 21:12:04,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:12:04,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 21:12:04,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 21:12:04,435 INFO L87 Difference]: Start difference. First operand 179 states and 248 transitions. Second operand has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:12:04,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:04,555 INFO L93 Difference]: Finished difference Result 316 states and 451 transitions. [2022-11-02 21:12:04,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 21:12:04,556 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 156 [2022-11-02 21:12:04,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:04,557 INFO L225 Difference]: With dead ends: 316 [2022-11-02 21:12:04,557 INFO L226 Difference]: Without dead ends: 185 [2022-11-02 21:12:04,557 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:12:04,558 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 7 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 543 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 9 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:04,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 543 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 9 Unchecked, 0.1s Time] [2022-11-02 21:12:04,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2022-11-02 21:12:04,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 185. [2022-11-02 21:12:04,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 184 states have (on average 1.391304347826087) internal successors, (256), 184 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:12:04,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 256 transitions. [2022-11-02 21:12:04,564 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 256 transitions. Word has length 156 [2022-11-02 21:12:04,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:04,564 INFO L495 AbstractCegarLoop]: Abstraction has 185 states and 256 transitions. [2022-11-02 21:12:04,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:12:04,564 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 256 transitions. [2022-11-02 21:12:04,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-02 21:12:04,566 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:04,566 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:12:04,588 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-11-02 21:12:04,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:12:04,781 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:12:04,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:04,781 INFO L85 PathProgramCache]: Analyzing trace with hash 1690919609, now seen corresponding path program 1 times [2022-11-02 21:12:04,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:12:04,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1784375566] [2022-11-02 21:12:04,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:04,783 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:12:04,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:12:04,784 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:12:04,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-11-02 21:12:05,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:05,244 INFO L263 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-02 21:12:05,250 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:12:05,711 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:05,711 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:12:05,711 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:12:05,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1784375566] [2022-11-02 21:12:05,712 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1784375566] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:05,712 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:05,712 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:12:05,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509101693] [2022-11-02 21:12:05,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:05,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:12:05,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:12:05,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:12:05,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:12:05,714 INFO L87 Difference]: Start difference. First operand 185 states and 256 transitions. Second operand has 5 states, 5 states have (on average 31.2) internal successors, (156), 5 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:12:05,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:05,864 INFO L93 Difference]: Finished difference Result 533 states and 772 transitions. [2022-11-02 21:12:05,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:12:05,865 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 5 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 156 [2022-11-02 21:12:05,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:05,867 INFO L225 Difference]: With dead ends: 533 [2022-11-02 21:12:05,867 INFO L226 Difference]: Without dead ends: 402 [2022-11-02 21:12:05,867 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-02 21:12:05,869 INFO L413 NwaCegarLoop]: 243 mSDtfsCounter, 568 mSDsluCounter, 830 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 568 SdHoareTripleChecker+Valid, 1073 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:05,869 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [568 Valid, 1073 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:12:05,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2022-11-02 21:12:05,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 193. [2022-11-02 21:12:05,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 192 states have (on average 1.390625) internal successors, (267), 192 states have internal predecessors, (267), 0 states have call successors, (0), 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 21:12:05,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 267 transitions. [2022-11-02 21:12:05,876 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 267 transitions. Word has length 156 [2022-11-02 21:12:05,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:05,876 INFO L495 AbstractCegarLoop]: Abstraction has 193 states and 267 transitions. [2022-11-02 21:12:05,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 5 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:12:05,876 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 267 transitions. [2022-11-02 21:12:05,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-02 21:12:05,878 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:05,878 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:12:05,900 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2022-11-02 21:12:06,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:12:06,095 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:12:06,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:06,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1809361083, now seen corresponding path program 1 times [2022-11-02 21:12:06,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:12:06,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1504997926] [2022-11-02 21:12:06,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:06,097 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:12:06,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:12:06,099 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:12:06,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-11-02 21:12:06,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:06,503 INFO L263 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-02 21:12:06,509 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:12:06,752 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:06,752 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:12:06,753 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:12:06,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1504997926] [2022-11-02 21:12:06,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1504997926] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:06,753 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:06,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:12:06,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298466491] [2022-11-02 21:12:06,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:06,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:12:06,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:12:06,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:12:06,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:12:06,754 INFO L87 Difference]: Start difference. First operand 193 states and 267 transitions. Second operand has 5 states, 5 states have (on average 31.2) internal successors, (156), 5 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:12:06,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:06,873 INFO L93 Difference]: Finished difference Result 330 states and 470 transitions. [2022-11-02 21:12:06,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:12:06,874 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 5 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 156 [2022-11-02 21:12:06,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:06,875 INFO L225 Difference]: With dead ends: 330 [2022-11-02 21:12:06,875 INFO L226 Difference]: Without dead ends: 199 [2022-11-02 21:12:06,876 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:12:06,876 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 22 mSDsluCounter, 530 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 716 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 19 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:06,877 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 716 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 19 Unchecked, 0.1s Time] [2022-11-02 21:12:06,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2022-11-02 21:12:06,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 199. [2022-11-02 21:12:06,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 198 states have (on average 1.3888888888888888) internal successors, (275), 198 states have internal predecessors, (275), 0 states have call successors, (0), 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 21:12:06,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 275 transitions. [2022-11-02 21:12:06,882 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 275 transitions. Word has length 156 [2022-11-02 21:12:06,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:06,882 INFO L495 AbstractCegarLoop]: Abstraction has 199 states and 275 transitions. [2022-11-02 21:12:06,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 5 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:12:06,883 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 275 transitions. [2022-11-02 21:12:06,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-02 21:12:06,885 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:06,885 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:12:06,907 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2022-11-02 21:12:07,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:12:07,102 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:12:07,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:07,103 INFO L85 PathProgramCache]: Analyzing trace with hash -1454565315, now seen corresponding path program 1 times [2022-11-02 21:12:07,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:12:07,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [480677712] [2022-11-02 21:12:07,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:07,104 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:12:07,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:12:07,105 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:12:07,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2022-11-02 21:12:07,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:07,483 INFO L263 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-02 21:12:07,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:12:07,754 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:07,754 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:12:07,754 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:12:07,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [480677712] [2022-11-02 21:12:07,755 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [480677712] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:07,755 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:07,755 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:12:07,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100714525] [2022-11-02 21:12:07,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:07,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:12:07,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:12:07,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:12:07,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:12:07,758 INFO L87 Difference]: Start difference. First operand 199 states and 275 transitions. Second operand has 5 states, 5 states have (on average 31.2) internal successors, (156), 5 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:12:07,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:07,886 INFO L93 Difference]: Finished difference Result 338 states and 481 transitions. [2022-11-02 21:12:07,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:12:07,887 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 5 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 156 [2022-11-02 21:12:07,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:07,888 INFO L225 Difference]: With dead ends: 338 [2022-11-02 21:12:07,888 INFO L226 Difference]: Without dead ends: 207 [2022-11-02 21:12:07,889 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:12:07,889 INFO L413 NwaCegarLoop]: 187 mSDtfsCounter, 17 mSDsluCounter, 539 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 726 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 20 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:07,890 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 726 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 20 Unchecked, 0.1s Time] [2022-11-02 21:12:07,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2022-11-02 21:12:07,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 207. [2022-11-02 21:12:07,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 206 states have (on average 1.3883495145631068) internal successors, (286), 206 states have internal predecessors, (286), 0 states have call successors, (0), 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 21:12:07,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 286 transitions. [2022-11-02 21:12:07,896 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 286 transitions. Word has length 156 [2022-11-02 21:12:07,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:07,896 INFO L495 AbstractCegarLoop]: Abstraction has 207 states and 286 transitions. [2022-11-02 21:12:07,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 5 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:12:07,897 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 286 transitions. [2022-11-02 21:12:07,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-02 21:12:07,898 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:07,899 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:12:07,921 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2022-11-02 21:12:08,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:12:08,099 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:12:08,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:08,100 INFO L85 PathProgramCache]: Analyzing trace with hash 899819967, now seen corresponding path program 1 times [2022-11-02 21:12:08,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:12:08,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [578276792] [2022-11-02 21:12:08,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:08,101 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:12:08,101 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:12:08,102 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:12:08,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2022-11-02 21:12:08,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:08,490 INFO L263 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-02 21:12:08,493 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:12:08,722 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:08,722 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:12:08,723 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:12:08,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [578276792] [2022-11-02 21:12:08,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [578276792] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:08,723 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:08,723 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:12:08,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420360014] [2022-11-02 21:12:08,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:08,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:12:08,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:12:08,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:12:08,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:12:08,725 INFO L87 Difference]: Start difference. First operand 207 states and 286 transitions. Second operand has 5 states, 5 states have (on average 31.2) internal successors, (156), 5 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:12:08,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:08,850 INFO L93 Difference]: Finished difference Result 342 states and 486 transitions. [2022-11-02 21:12:08,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:12:08,851 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 5 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 156 [2022-11-02 21:12:08,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:08,852 INFO L225 Difference]: With dead ends: 342 [2022-11-02 21:12:08,852 INFO L226 Difference]: Without dead ends: 211 [2022-11-02 21:12:08,853 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:12:08,854 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 18 mSDsluCounter, 538 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 724 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 20 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:08,854 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 724 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 20 Unchecked, 0.1s Time] [2022-11-02 21:12:08,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2022-11-02 21:12:08,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 211. [2022-11-02 21:12:08,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 210 states have (on average 1.3857142857142857) internal successors, (291), 210 states have internal predecessors, (291), 0 states have call successors, (0), 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 21:12:08,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 291 transitions. [2022-11-02 21:12:08,861 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 291 transitions. Word has length 156 [2022-11-02 21:12:08,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:08,862 INFO L495 AbstractCegarLoop]: Abstraction has 211 states and 291 transitions. [2022-11-02 21:12:08,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 5 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:12:08,862 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 291 transitions. [2022-11-02 21:12:08,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-02 21:12:08,864 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:08,864 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:12:08,889 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2022-11-02 21:12:09,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:12:09,065 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:12:09,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:09,066 INFO L85 PathProgramCache]: Analyzing trace with hash 313543745, now seen corresponding path program 1 times [2022-11-02 21:12:09,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:12:09,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [439454674] [2022-11-02 21:12:09,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:09,067 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:12:09,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:12:09,069 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:12:09,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2022-11-02 21:12:09,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:09,444 INFO L263 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-02 21:12:09,447 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:12:09,765 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:09,765 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:12:09,766 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:12:09,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [439454674] [2022-11-02 21:12:09,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [439454674] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:09,766 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:09,766 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 21:12:09,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159314797] [2022-11-02 21:12:09,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:09,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 21:12:09,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:12:09,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 21:12:09,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-02 21:12:09,768 INFO L87 Difference]: Start difference. First operand 211 states and 291 transitions. Second operand has 7 states, 7 states have (on average 22.285714285714285) internal successors, (156), 7 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:12:09,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:09,892 INFO L93 Difference]: Finished difference Result 374 states and 528 transitions. [2022-11-02 21:12:09,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:12:09,893 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.285714285714285) internal successors, (156), 7 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 156 [2022-11-02 21:12:09,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:09,894 INFO L225 Difference]: With dead ends: 374 [2022-11-02 21:12:09,894 INFO L226 Difference]: Without dead ends: 243 [2022-11-02 21:12:09,895 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-02 21:12:09,895 INFO L413 NwaCegarLoop]: 183 mSDtfsCounter, 51 mSDsluCounter, 865 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 1048 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 40 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:09,896 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 1048 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 40 Unchecked, 0.1s Time] [2022-11-02 21:12:09,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2022-11-02 21:12:09,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 243. [2022-11-02 21:12:09,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 242 states have (on average 1.3760330578512396) internal successors, (333), 242 states have internal predecessors, (333), 0 states have call successors, (0), 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 21:12:09,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 333 transitions. [2022-11-02 21:12:09,902 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 333 transitions. Word has length 156 [2022-11-02 21:12:09,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:09,903 INFO L495 AbstractCegarLoop]: Abstraction has 243 states and 333 transitions. [2022-11-02 21:12:09,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.285714285714285) internal successors, (156), 7 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:12:09,903 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 333 transitions. [2022-11-02 21:12:09,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-02 21:12:09,905 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:09,905 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:12:09,923 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2022-11-02 21:12:10,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:12:10,124 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:12:10,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:10,124 INFO L85 PathProgramCache]: Analyzing trace with hash -1562939073, now seen corresponding path program 1 times [2022-11-02 21:12:10,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:12:10,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [921893870] [2022-11-02 21:12:10,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:10,126 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:12:10,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:12:10,127 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:12:10,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2022-11-02 21:12:10,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:10,530 INFO L263 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-02 21:12:10,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:12:11,255 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:11,256 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:12:11,256 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:12:11,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [921893870] [2022-11-02 21:12:11,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [921893870] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:11,256 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:11,256 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-02 21:12:11,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032041839] [2022-11-02 21:12:11,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:11,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 21:12:11,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:12:11,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 21:12:11,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-11-02 21:12:11,258 INFO L87 Difference]: Start difference. First operand 243 states and 333 transitions. Second operand has 9 states, 9 states have (on average 17.333333333333332) internal successors, (156), 9 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:12:11,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:11,358 INFO L93 Difference]: Finished difference Result 388 states and 548 transitions. [2022-11-02 21:12:11,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-02 21:12:11,360 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 17.333333333333332) internal successors, (156), 9 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 156 [2022-11-02 21:12:11,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:11,361 INFO L225 Difference]: With dead ends: 388 [2022-11-02 21:12:11,361 INFO L226 Difference]: Without dead ends: 257 [2022-11-02 21:12:11,361 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-11-02 21:12:11,362 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 39 mSDsluCounter, 885 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 1064 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 89 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:11,362 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 1064 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 89 Unchecked, 0.1s Time] [2022-11-02 21:12:11,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2022-11-02 21:12:11,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 257. [2022-11-02 21:12:11,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 256 states have (on average 1.37890625) internal successors, (353), 256 states have internal predecessors, (353), 0 states have call successors, (0), 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 21:12:11,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 353 transitions. [2022-11-02 21:12:11,369 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 353 transitions. Word has length 156 [2022-11-02 21:12:11,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:11,370 INFO L495 AbstractCegarLoop]: Abstraction has 257 states and 353 transitions. [2022-11-02 21:12:11,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 17.333333333333332) internal successors, (156), 9 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:12:11,370 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 353 transitions. [2022-11-02 21:12:11,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-02 21:12:11,372 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:11,372 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:12:11,396 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2022-11-02 21:12:11,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:12:11,590 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:12:11,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:11,591 INFO L85 PathProgramCache]: Analyzing trace with hash -595588419, now seen corresponding path program 1 times [2022-11-02 21:12:11,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:12:11,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [416416717] [2022-11-02 21:12:11,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:11,592 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:12:11,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:12:11,593 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:12:11,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2022-11-02 21:12:11,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:11,971 INFO L263 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-02 21:12:11,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:12:12,608 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:12,608 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:12:12,608 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:12:12,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [416416717] [2022-11-02 21:12:12,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [416416717] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:12,609 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:12,609 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 21:12:12,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596580332] [2022-11-02 21:12:12,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:12,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 21:12:12,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:12:12,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 21:12:12,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-02 21:12:12,611 INFO L87 Difference]: Start difference. First operand 257 states and 353 transitions. Second operand has 7 states, 7 states have (on average 22.285714285714285) internal successors, (156), 7 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:12:13,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:13,287 INFO L93 Difference]: Finished difference Result 912 states and 1321 transitions. [2022-11-02 21:12:13,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-02 21:12:13,288 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.285714285714285) internal successors, (156), 7 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 156 [2022-11-02 21:12:13,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:13,291 INFO L225 Difference]: With dead ends: 912 [2022-11-02 21:12:13,291 INFO L226 Difference]: Without dead ends: 781 [2022-11-02 21:12:13,291 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2022-11-02 21:12:13,292 INFO L413 NwaCegarLoop]: 277 mSDtfsCounter, 1249 mSDsluCounter, 1439 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1249 SdHoareTripleChecker+Valid, 1716 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:13,292 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1249 Valid, 1716 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-02 21:12:13,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 781 states. [2022-11-02 21:12:13,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 781 to 287. [2022-11-02 21:12:13,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 286 states have (on average 1.3881118881118881) internal successors, (397), 286 states have internal predecessors, (397), 0 states have call successors, (0), 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 21:12:13,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 397 transitions. [2022-11-02 21:12:13,302 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 397 transitions. Word has length 156 [2022-11-02 21:12:13,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:13,303 INFO L495 AbstractCegarLoop]: Abstraction has 287 states and 397 transitions. [2022-11-02 21:12:13,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.285714285714285) internal successors, (156), 7 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:12:13,303 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 397 transitions. [2022-11-02 21:12:13,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-02 21:12:13,305 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:13,305 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:12:13,328 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2022-11-02 21:12:13,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:12:13,523 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:12:13,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:13,523 INFO L85 PathProgramCache]: Analyzing trace with hash 665328831, now seen corresponding path program 1 times [2022-11-02 21:12:13,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:12:13,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [635893180] [2022-11-02 21:12:13,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:13,525 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:12:13,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:12:13,526 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:12:13,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2022-11-02 21:12:13,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:13,976 INFO L263 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-02 21:12:13,982 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:12:14,641 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:14,641 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:12:14,642 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:12:14,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [635893180] [2022-11-02 21:12:14,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [635893180] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:14,642 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:14,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 21:12:14,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065540343] [2022-11-02 21:12:14,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:14,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-02 21:12:14,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:12:14,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-02 21:12:14,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-02 21:12:14,644 INFO L87 Difference]: Start difference. First operand 287 states and 397 transitions. Second operand has 8 states, 8 states have (on average 19.5) internal successors, (156), 8 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:12:15,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:15,455 INFO L93 Difference]: Finished difference Result 922 states and 1335 transitions. [2022-11-02 21:12:15,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-02 21:12:15,456 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 19.5) internal successors, (156), 8 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 156 [2022-11-02 21:12:15,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:15,459 INFO L225 Difference]: With dead ends: 922 [2022-11-02 21:12:15,459 INFO L226 Difference]: Without dead ends: 791 [2022-11-02 21:12:15,460 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2022-11-02 21:12:15,462 INFO L413 NwaCegarLoop]: 275 mSDtfsCounter, 1445 mSDsluCounter, 1855 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1445 SdHoareTripleChecker+Valid, 2130 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:15,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1445 Valid, 2130 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-02 21:12:15,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 791 states. [2022-11-02 21:12:15,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 791 to 289. [2022-11-02 21:12:15,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 288 states have (on average 1.3854166666666667) internal successors, (399), 288 states have internal predecessors, (399), 0 states have call successors, (0), 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 21:12:15,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 399 transitions. [2022-11-02 21:12:15,477 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 399 transitions. Word has length 156 [2022-11-02 21:12:15,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:15,478 INFO L495 AbstractCegarLoop]: Abstraction has 289 states and 399 transitions. [2022-11-02 21:12:15,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 19.5) internal successors, (156), 8 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:12:15,479 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 399 transitions. [2022-11-02 21:12:15,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-02 21:12:15,481 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:15,481 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:12:15,506 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2022-11-02 21:12:15,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:12:15,695 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:12:15,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:15,695 INFO L85 PathProgramCache]: Analyzing trace with hash 2052114241, now seen corresponding path program 1 times [2022-11-02 21:12:15,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:12:15,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2068781151] [2022-11-02 21:12:15,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:15,696 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:12:15,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:12:15,698 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:12:15,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2022-11-02 21:12:16,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:16,093 INFO L263 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-02 21:12:16,096 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:12:16,732 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:16,732 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:12:16,732 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:12:16,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2068781151] [2022-11-02 21:12:16,732 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2068781151] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:16,732 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:16,733 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 21:12:16,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007022414] [2022-11-02 21:12:16,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:16,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-02 21:12:16,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:12:16,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-02 21:12:16,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-02 21:12:16,734 INFO L87 Difference]: Start difference. First operand 289 states and 399 transitions. Second operand has 8 states, 8 states have (on average 19.5) internal successors, (156), 8 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:12:17,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:17,480 INFO L93 Difference]: Finished difference Result 918 states and 1328 transitions. [2022-11-02 21:12:17,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-02 21:12:17,481 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 19.5) internal successors, (156), 8 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 156 [2022-11-02 21:12:17,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:17,484 INFO L225 Difference]: With dead ends: 918 [2022-11-02 21:12:17,484 INFO L226 Difference]: Without dead ends: 787 [2022-11-02 21:12:17,485 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2022-11-02 21:12:17,486 INFO L413 NwaCegarLoop]: 281 mSDtfsCounter, 1425 mSDsluCounter, 1851 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1425 SdHoareTripleChecker+Valid, 2132 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:17,486 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1425 Valid, 2132 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-02 21:12:17,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 787 states. [2022-11-02 21:12:17,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 787 to 293. [2022-11-02 21:12:17,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 292 states have (on average 1.3835616438356164) internal successors, (404), 292 states have internal predecessors, (404), 0 states have call successors, (0), 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 21:12:17,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 404 transitions. [2022-11-02 21:12:17,494 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 404 transitions. Word has length 156 [2022-11-02 21:12:17,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:17,495 INFO L495 AbstractCegarLoop]: Abstraction has 293 states and 404 transitions. [2022-11-02 21:12:17,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 19.5) internal successors, (156), 8 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:12:17,495 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 404 transitions. [2022-11-02 21:12:17,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-02 21:12:17,496 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:17,497 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:12:17,513 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (26)] Ended with exit code 0 [2022-11-02 21:12:17,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:12:17,711 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:12:17,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:17,711 INFO L85 PathProgramCache]: Analyzing trace with hash 23528131, now seen corresponding path program 1 times [2022-11-02 21:12:17,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:12:17,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [398784624] [2022-11-02 21:12:17,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:17,713 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:12:17,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:12:17,714 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:12:17,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2022-11-02 21:12:18,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:18,091 INFO L263 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-02 21:12:18,095 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:12:18,763 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:18,763 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:12:18,763 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:12:18,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [398784624] [2022-11-02 21:12:18,763 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [398784624] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:18,764 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:18,764 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 21:12:18,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859776090] [2022-11-02 21:12:18,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:18,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 21:12:18,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:12:18,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 21:12:18,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-02 21:12:18,766 INFO L87 Difference]: Start difference. First operand 293 states and 404 transitions. Second operand has 7 states, 7 states have (on average 22.285714285714285) internal successors, (156), 7 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:12:19,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:19,352 INFO L93 Difference]: Finished difference Result 904 states and 1306 transitions. [2022-11-02 21:12:19,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-02 21:12:19,353 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.285714285714285) internal successors, (156), 7 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 156 [2022-11-02 21:12:19,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:19,355 INFO L225 Difference]: With dead ends: 904 [2022-11-02 21:12:19,355 INFO L226 Difference]: Without dead ends: 773 [2022-11-02 21:12:19,356 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2022-11-02 21:12:19,357 INFO L413 NwaCegarLoop]: 289 mSDtfsCounter, 1208 mSDsluCounter, 1431 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1208 SdHoareTripleChecker+Valid, 1720 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:19,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1208 Valid, 1720 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-02 21:12:19,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 773 states. [2022-11-02 21:12:19,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 773 to 295. [2022-11-02 21:12:19,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 294 states have (on average 1.380952380952381) internal successors, (406), 294 states have internal predecessors, (406), 0 states have call successors, (0), 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 21:12:19,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 406 transitions. [2022-11-02 21:12:19,366 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 406 transitions. Word has length 156 [2022-11-02 21:12:19,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:19,366 INFO L495 AbstractCegarLoop]: Abstraction has 295 states and 406 transitions. [2022-11-02 21:12:19,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.285714285714285) internal successors, (156), 7 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:12:19,366 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 406 transitions. [2022-11-02 21:12:19,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-02 21:12:19,367 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:19,368 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:12:19,384 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (27)] Ended with exit code 0 [2022-11-02 21:12:19,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:12:19,581 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:12:19,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:19,581 INFO L85 PathProgramCache]: Analyzing trace with hash 8009413, now seen corresponding path program 1 times [2022-11-02 21:12:19,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:12:19,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1175406604] [2022-11-02 21:12:19,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:19,582 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:12:19,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:12:19,583 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:12:19,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2022-11-02 21:12:19,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:19,960 INFO L263 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-02 21:12:19,964 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:12:20,643 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:20,643 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:12:20,644 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:12:20,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1175406604] [2022-11-02 21:12:20,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1175406604] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:20,644 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:20,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 21:12:20,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065574784] [2022-11-02 21:12:20,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:20,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-02 21:12:20,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:12:20,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-02 21:12:20,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-02 21:12:20,646 INFO L87 Difference]: Start difference. First operand 295 states and 406 transitions. Second operand has 8 states, 8 states have (on average 19.5) internal successors, (156), 8 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:12:21,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:21,355 INFO L93 Difference]: Finished difference Result 922 states and 1332 transitions. [2022-11-02 21:12:21,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-02 21:12:21,355 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 19.5) internal successors, (156), 8 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 156 [2022-11-02 21:12:21,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:21,357 INFO L225 Difference]: With dead ends: 922 [2022-11-02 21:12:21,357 INFO L226 Difference]: Without dead ends: 791 [2022-11-02 21:12:21,358 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2022-11-02 21:12:21,358 INFO L413 NwaCegarLoop]: 283 mSDtfsCounter, 1416 mSDsluCounter, 1847 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1416 SdHoareTripleChecker+Valid, 2130 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:21,359 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1416 Valid, 2130 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-02 21:12:21,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 791 states. [2022-11-02 21:12:21,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 791 to 297. [2022-11-02 21:12:21,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 296 states have (on average 1.3783783783783783) internal successors, (408), 296 states have internal predecessors, (408), 0 states have call successors, (0), 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 21:12:21,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 408 transitions. [2022-11-02 21:12:21,368 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 408 transitions. Word has length 156 [2022-11-02 21:12:21,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:21,368 INFO L495 AbstractCegarLoop]: Abstraction has 297 states and 408 transitions. [2022-11-02 21:12:21,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 19.5) internal successors, (156), 8 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:12:21,368 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 408 transitions. [2022-11-02 21:12:21,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-02 21:12:21,369 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:21,370 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:12:21,385 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (28)] Ended with exit code 0 [2022-11-02 21:12:21,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:12:21,583 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:12:21,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:21,583 INFO L85 PathProgramCache]: Analyzing trace with hash -345078969, now seen corresponding path program 1 times [2022-11-02 21:12:21,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:12:21,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [951002219] [2022-11-02 21:12:21,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:21,585 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:12:21,585 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:12:21,586 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:12:21,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2022-11-02 21:12:21,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:22,009 INFO L263 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-02 21:12:22,014 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:12:22,638 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:22,638 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:12:22,639 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:12:22,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [951002219] [2022-11-02 21:12:22,639 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [951002219] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:22,639 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:22,639 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 21:12:22,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036976755] [2022-11-02 21:12:22,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:22,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-02 21:12:22,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:12:22,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-02 21:12:22,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-02 21:12:22,641 INFO L87 Difference]: Start difference. First operand 297 states and 408 transitions. Second operand has 8 states, 8 states have (on average 19.5) internal successors, (156), 8 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:12:23,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:23,373 INFO L93 Difference]: Finished difference Result 920 states and 1328 transitions. [2022-11-02 21:12:23,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-02 21:12:23,374 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 19.5) internal successors, (156), 8 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 156 [2022-11-02 21:12:23,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:23,378 INFO L225 Difference]: With dead ends: 920 [2022-11-02 21:12:23,378 INFO L226 Difference]: Without dead ends: 789 [2022-11-02 21:12:23,379 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2022-11-02 21:12:23,379 INFO L413 NwaCegarLoop]: 286 mSDtfsCounter, 1404 mSDsluCounter, 1845 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1404 SdHoareTripleChecker+Valid, 2131 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:23,380 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1404 Valid, 2131 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-02 21:12:23,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 789 states. [2022-11-02 21:12:23,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 789 to 299. [2022-11-02 21:12:23,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 298 states have (on average 1.3758389261744965) internal successors, (410), 298 states have internal predecessors, (410), 0 states have call successors, (0), 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 21:12:23,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 410 transitions. [2022-11-02 21:12:23,389 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 410 transitions. Word has length 156 [2022-11-02 21:12:23,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:23,389 INFO L495 AbstractCegarLoop]: Abstraction has 299 states and 410 transitions. [2022-11-02 21:12:23,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 19.5) internal successors, (156), 8 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:12:23,390 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 410 transitions. [2022-11-02 21:12:23,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-02 21:12:23,391 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:23,391 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:12:23,411 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2022-11-02 21:12:23,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:12:23,608 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:12:23,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:23,609 INFO L85 PathProgramCache]: Analyzing trace with hash 548407369, now seen corresponding path program 1 times [2022-11-02 21:12:23,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:12:23,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1192522597] [2022-11-02 21:12:23,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:23,610 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:12:23,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:12:23,611 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:12:23,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2022-11-02 21:12:23,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:23,995 INFO L263 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-02 21:12:23,998 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:12:24,633 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:24,633 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:12:24,633 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:12:24,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1192522597] [2022-11-02 21:12:24,634 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1192522597] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:24,634 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:24,634 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 21:12:24,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676256920] [2022-11-02 21:12:24,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:24,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-02 21:12:24,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:12:24,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-02 21:12:24,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-02 21:12:24,636 INFO L87 Difference]: Start difference. First operand 299 states and 410 transitions. Second operand has 8 states, 8 states have (on average 19.5) internal successors, (156), 8 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:12:25,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:25,341 INFO L93 Difference]: Finished difference Result 918 states and 1324 transitions. [2022-11-02 21:12:25,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-02 21:12:25,342 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 19.5) internal successors, (156), 8 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 156 [2022-11-02 21:12:25,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:25,346 INFO L225 Difference]: With dead ends: 918 [2022-11-02 21:12:25,346 INFO L226 Difference]: Without dead ends: 787 [2022-11-02 21:12:25,349 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2022-11-02 21:12:25,351 INFO L413 NwaCegarLoop]: 289 mSDtfsCounter, 1392 mSDsluCounter, 1843 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1392 SdHoareTripleChecker+Valid, 2132 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:25,351 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1392 Valid, 2132 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-02 21:12:25,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 787 states. [2022-11-02 21:12:25,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 787 to 301. [2022-11-02 21:12:25,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 300 states have (on average 1.3733333333333333) internal successors, (412), 300 states have internal predecessors, (412), 0 states have call successors, (0), 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 21:12:25,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 412 transitions. [2022-11-02 21:12:25,365 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 412 transitions. Word has length 156 [2022-11-02 21:12:25,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:25,366 INFO L495 AbstractCegarLoop]: Abstraction has 301 states and 412 transitions. [2022-11-02 21:12:25,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 19.5) internal successors, (156), 8 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:12:25,366 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 412 transitions. [2022-11-02 21:12:25,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-02 21:12:25,368 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:25,368 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:12:25,396 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2022-11-02 21:12:25,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:12:25,583 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:12:25,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:25,583 INFO L85 PathProgramCache]: Analyzing trace with hash -348985909, now seen corresponding path program 1 times [2022-11-02 21:12:25,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:12:25,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1639673906] [2022-11-02 21:12:25,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:25,584 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:12:25,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:12:25,585 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:12:25,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2022-11-02 21:12:25,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:25,959 INFO L263 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-02 21:12:25,965 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:12:26,649 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:26,650 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:12:26,650 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:12:26,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1639673906] [2022-11-02 21:12:26,650 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1639673906] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:26,650 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:26,651 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 21:12:26,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080564296] [2022-11-02 21:12:26,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:26,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-02 21:12:26,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:12:26,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-02 21:12:26,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-02 21:12:26,652 INFO L87 Difference]: Start difference. First operand 301 states and 412 transitions. Second operand has 8 states, 8 states have (on average 19.5) internal successors, (156), 8 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:12:27,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:27,340 INFO L93 Difference]: Finished difference Result 916 states and 1320 transitions. [2022-11-02 21:12:27,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-02 21:12:27,340 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 19.5) internal successors, (156), 8 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 156 [2022-11-02 21:12:27,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:27,342 INFO L225 Difference]: With dead ends: 916 [2022-11-02 21:12:27,342 INFO L226 Difference]: Without dead ends: 785 [2022-11-02 21:12:27,342 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2022-11-02 21:12:27,343 INFO L413 NwaCegarLoop]: 292 mSDtfsCounter, 1380 mSDsluCounter, 1841 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1380 SdHoareTripleChecker+Valid, 2133 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:27,343 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1380 Valid, 2133 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-02 21:12:27,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 785 states. [2022-11-02 21:12:27,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 785 to 303. [2022-11-02 21:12:27,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 302 states have (on average 1.3708609271523178) internal successors, (414), 302 states have internal predecessors, (414), 0 states have call successors, (0), 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 21:12:27,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 414 transitions. [2022-11-02 21:12:27,353 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 414 transitions. Word has length 156 [2022-11-02 21:12:27,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:27,353 INFO L495 AbstractCegarLoop]: Abstraction has 303 states and 414 transitions. [2022-11-02 21:12:27,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 19.5) internal successors, (156), 8 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:12:27,354 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 414 transitions. [2022-11-02 21:12:27,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-02 21:12:27,355 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:27,355 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:12:27,370 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (31)] Ended with exit code 0 [2022-11-02 21:12:27,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:12:27,567 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:12:27,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:27,567 INFO L85 PathProgramCache]: Analyzing trace with hash 74660813, now seen corresponding path program 1 times [2022-11-02 21:12:27,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:12:27,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1023796608] [2022-11-02 21:12:27,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:27,568 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:12:27,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:12:27,570 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:12:27,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2022-11-02 21:12:27,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:27,995 INFO L263 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-02 21:12:27,998 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:12:28,714 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:28,714 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:12:28,715 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:12:28,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1023796608] [2022-11-02 21:12:28,715 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1023796608] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:28,715 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:28,715 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-02 21:12:28,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369816451] [2022-11-02 21:12:28,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:28,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 21:12:28,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:12:28,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 21:12:28,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-02 21:12:28,717 INFO L87 Difference]: Start difference. First operand 303 states and 414 transitions. Second operand has 9 states, 9 states have (on average 17.333333333333332) internal successors, (156), 9 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:12:29,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:29,534 INFO L93 Difference]: Finished difference Result 920 states and 1325 transitions. [2022-11-02 21:12:29,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-02 21:12:29,534 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 17.333333333333332) internal successors, (156), 9 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 156 [2022-11-02 21:12:29,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:29,537 INFO L225 Difference]: With dead ends: 920 [2022-11-02 21:12:29,538 INFO L226 Difference]: Without dead ends: 789 [2022-11-02 21:12:29,538 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=313, Unknown=0, NotChecked=0, Total=420 [2022-11-02 21:12:29,539 INFO L413 NwaCegarLoop]: 294 mSDtfsCounter, 1560 mSDsluCounter, 2255 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1560 SdHoareTripleChecker+Valid, 2549 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:29,539 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1560 Valid, 2549 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-02 21:12:29,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 789 states. [2022-11-02 21:12:29,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 789 to 307. [2022-11-02 21:12:29,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 306 states have (on average 1.369281045751634) internal successors, (419), 306 states have internal predecessors, (419), 0 states have call successors, (0), 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 21:12:29,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 419 transitions. [2022-11-02 21:12:29,550 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 419 transitions. Word has length 156 [2022-11-02 21:12:29,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:29,551 INFO L495 AbstractCegarLoop]: Abstraction has 307 states and 419 transitions. [2022-11-02 21:12:29,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 17.333333333333332) internal successors, (156), 9 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:12:29,551 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 419 transitions. [2022-11-02 21:12:29,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-02 21:12:29,552 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:29,552 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:12:29,570 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (32)] Forceful destruction successful, exit code 0 [2022-11-02 21:12:29,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:12:29,765 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:12:29,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:29,766 INFO L85 PathProgramCache]: Analyzing trace with hash 734192335, now seen corresponding path program 1 times [2022-11-02 21:12:29,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:12:29,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [766531452] [2022-11-02 21:12:29,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:29,767 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:12:29,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:12:29,768 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:12:29,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2022-11-02 21:12:30,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:30,145 INFO L263 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-02 21:12:30,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:12:30,852 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:30,852 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:12:30,852 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:12:30,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [766531452] [2022-11-02 21:12:30,853 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [766531452] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:30,853 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:30,853 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-02 21:12:30,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303879723] [2022-11-02 21:12:30,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:30,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 21:12:30,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:12:30,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 21:12:30,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-02 21:12:30,855 INFO L87 Difference]: Start difference. First operand 307 states and 419 transitions. Second operand has 9 states, 9 states have (on average 17.333333333333332) internal successors, (156), 9 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:12:31,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:31,741 INFO L93 Difference]: Finished difference Result 918 states and 1321 transitions. [2022-11-02 21:12:31,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-02 21:12:31,742 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 17.333333333333332) internal successors, (156), 9 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 156 [2022-11-02 21:12:31,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:31,744 INFO L225 Difference]: With dead ends: 918 [2022-11-02 21:12:31,745 INFO L226 Difference]: Without dead ends: 787 [2022-11-02 21:12:31,745 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=313, Unknown=0, NotChecked=0, Total=420 [2022-11-02 21:12:31,746 INFO L413 NwaCegarLoop]: 297 mSDtfsCounter, 1547 mSDsluCounter, 2253 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1547 SdHoareTripleChecker+Valid, 2550 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:31,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1547 Valid, 2550 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-02 21:12:31,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 787 states. [2022-11-02 21:12:31,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 787 to 309. [2022-11-02 21:12:31,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 308 states have (on average 1.3668831168831168) internal successors, (421), 308 states have internal predecessors, (421), 0 states have call successors, (0), 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 21:12:31,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 421 transitions. [2022-11-02 21:12:31,756 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 421 transitions. Word has length 156 [2022-11-02 21:12:31,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:31,756 INFO L495 AbstractCegarLoop]: Abstraction has 309 states and 421 transitions. [2022-11-02 21:12:31,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 17.333333333333332) internal successors, (156), 9 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:12:31,757 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 421 transitions. [2022-11-02 21:12:31,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-02 21:12:31,758 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:31,758 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:12:31,775 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (33)] Ended with exit code 0 [2022-11-02 21:12:31,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:12:31,975 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:12:31,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:31,976 INFO L85 PathProgramCache]: Analyzing trace with hash -109813167, now seen corresponding path program 1 times [2022-11-02 21:12:31,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:12:31,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [812936989] [2022-11-02 21:12:31,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:31,977 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:12:31,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:12:31,978 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:12:31,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2022-11-02 21:12:32,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:32,365 INFO L263 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-02 21:12:32,368 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:12:33,113 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:33,113 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:12:33,113 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:12:33,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [812936989] [2022-11-02 21:12:33,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [812936989] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:33,114 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:33,114 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 21:12:33,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121170127] [2022-11-02 21:12:33,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:33,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 21:12:33,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:12:33,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 21:12:33,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-02 21:12:33,116 INFO L87 Difference]: Start difference. First operand 309 states and 421 transitions. Second operand has 7 states, 7 states have (on average 22.285714285714285) internal successors, (156), 7 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:12:33,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:33,706 INFO L93 Difference]: Finished difference Result 888 states and 1275 transitions. [2022-11-02 21:12:33,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-02 21:12:33,707 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.285714285714285) internal successors, (156), 7 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 156 [2022-11-02 21:12:33,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:33,711 INFO L225 Difference]: With dead ends: 888 [2022-11-02 21:12:33,711 INFO L226 Difference]: Without dead ends: 757 [2022-11-02 21:12:33,711 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2022-11-02 21:12:33,712 INFO L413 NwaCegarLoop]: 313 mSDtfsCounter, 1123 mSDsluCounter, 1415 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1123 SdHoareTripleChecker+Valid, 1728 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:33,712 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1123 Valid, 1728 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-02 21:12:33,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 757 states. [2022-11-02 21:12:33,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 757 to 311. [2022-11-02 21:12:33,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 310 states have (on average 1.364516129032258) internal successors, (423), 310 states have internal predecessors, (423), 0 states have call successors, (0), 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 21:12:33,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 423 transitions. [2022-11-02 21:12:33,722 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 423 transitions. Word has length 156 [2022-11-02 21:12:33,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:33,723 INFO L495 AbstractCegarLoop]: Abstraction has 311 states and 423 transitions. [2022-11-02 21:12:33,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.285714285714285) internal successors, (156), 7 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:12:33,723 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 423 transitions. [2022-11-02 21:12:33,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-02 21:12:33,724 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:33,725 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:12:33,743 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (34)] Forceful destruction successful, exit code 0 [2022-11-02 21:12:33,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:12:33,943 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:12:33,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:33,943 INFO L85 PathProgramCache]: Analyzing trace with hash -182199725, now seen corresponding path program 1 times [2022-11-02 21:12:33,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:12:33,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [664787514] [2022-11-02 21:12:33,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:33,944 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:12:33,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:12:33,945 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:12:33,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2022-11-02 21:12:34,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:34,316 INFO L263 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-02 21:12:34,320 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:12:35,025 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:35,025 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:12:35,025 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:12:35,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [664787514] [2022-11-02 21:12:35,026 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [664787514] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:35,026 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:35,026 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 21:12:35,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239742657] [2022-11-02 21:12:35,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:35,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-02 21:12:35,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:12:35,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-02 21:12:35,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-02 21:12:35,028 INFO L87 Difference]: Start difference. First operand 311 states and 423 transitions. Second operand has 8 states, 8 states have (on average 19.5) internal successors, (156), 8 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:12:35,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:35,731 INFO L93 Difference]: Finished difference Result 922 states and 1325 transitions. [2022-11-02 21:12:35,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-02 21:12:35,731 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 19.5) internal successors, (156), 8 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 156 [2022-11-02 21:12:35,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:35,735 INFO L225 Difference]: With dead ends: 922 [2022-11-02 21:12:35,735 INFO L226 Difference]: Without dead ends: 791 [2022-11-02 21:12:35,735 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2022-11-02 21:12:35,736 INFO L413 NwaCegarLoop]: 299 mSDtfsCounter, 1355 mSDsluCounter, 1831 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1355 SdHoareTripleChecker+Valid, 2130 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:35,736 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1355 Valid, 2130 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-02 21:12:35,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 791 states. [2022-11-02 21:12:35,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 791 to 313. [2022-11-02 21:12:35,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 312 states have (on average 1.3621794871794872) internal successors, (425), 312 states have internal predecessors, (425), 0 states have call successors, (0), 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 21:12:35,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 425 transitions. [2022-11-02 21:12:35,745 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 425 transitions. Word has length 156 [2022-11-02 21:12:35,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:35,746 INFO L495 AbstractCegarLoop]: Abstraction has 313 states and 425 transitions. [2022-11-02 21:12:35,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 19.5) internal successors, (156), 8 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:12:35,746 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 425 transitions. [2022-11-02 21:12:35,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-02 21:12:35,747 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:35,748 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:12:35,765 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (35)] Ended with exit code 0 [2022-11-02 21:12:35,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:12:35,965 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:12:35,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:35,966 INFO L85 PathProgramCache]: Analyzing trace with hash 519400149, now seen corresponding path program 1 times [2022-11-02 21:12:35,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:12:35,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1123813560] [2022-11-02 21:12:35,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:35,967 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:12:35,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:12:35,968 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:12:35,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2022-11-02 21:12:36,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:36,369 INFO L263 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-02 21:12:36,374 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:12:37,136 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:37,136 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:12:37,137 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:12:37,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1123813560] [2022-11-02 21:12:37,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1123813560] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:37,137 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:37,137 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 21:12:37,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123899775] [2022-11-02 21:12:37,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:37,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-02 21:12:37,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:12:37,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-02 21:12:37,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-02 21:12:37,139 INFO L87 Difference]: Start difference. First operand 313 states and 425 transitions. Second operand has 8 states, 8 states have (on average 19.5) internal successors, (156), 8 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:12:37,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:37,863 INFO L93 Difference]: Finished difference Result 920 states and 1321 transitions. [2022-11-02 21:12:37,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-02 21:12:37,864 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 19.5) internal successors, (156), 8 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 156 [2022-11-02 21:12:37,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:37,867 INFO L225 Difference]: With dead ends: 920 [2022-11-02 21:12:37,867 INFO L226 Difference]: Without dead ends: 789 [2022-11-02 21:12:37,867 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2022-11-02 21:12:37,868 INFO L413 NwaCegarLoop]: 302 mSDtfsCounter, 1343 mSDsluCounter, 1829 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1343 SdHoareTripleChecker+Valid, 2131 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:37,868 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1343 Valid, 2131 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-02 21:12:37,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 789 states. [2022-11-02 21:12:37,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 789 to 315. [2022-11-02 21:12:37,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 314 states have (on average 1.3598726114649682) internal successors, (427), 314 states have internal predecessors, (427), 0 states have call successors, (0), 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 21:12:37,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 427 transitions. [2022-11-02 21:12:37,874 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 427 transitions. Word has length 156 [2022-11-02 21:12:37,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:37,874 INFO L495 AbstractCegarLoop]: Abstraction has 315 states and 427 transitions. [2022-11-02 21:12:37,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 19.5) internal successors, (156), 8 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:12:37,875 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 427 transitions. [2022-11-02 21:12:37,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-02 21:12:37,876 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:37,876 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:12:37,892 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (36)] Ended with exit code 0 [2022-11-02 21:12:38,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:12:38,092 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:12:38,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:38,093 INFO L85 PathProgramCache]: Analyzing trace with hash 1905603543, now seen corresponding path program 1 times [2022-11-02 21:12:38,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:12:38,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1399724634] [2022-11-02 21:12:38,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:38,094 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:12:38,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:12:38,095 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:12:38,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2022-11-02 21:12:38,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:38,474 INFO L263 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-02 21:12:38,478 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:12:39,263 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:39,263 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:12:39,263 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:12:39,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1399724634] [2022-11-02 21:12:39,263 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1399724634] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:39,263 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:39,263 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 21:12:39,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764746503] [2022-11-02 21:12:39,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:39,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-02 21:12:39,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:12:39,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-02 21:12:39,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-02 21:12:39,265 INFO L87 Difference]: Start difference. First operand 315 states and 427 transitions. Second operand has 8 states, 8 states have (on average 19.5) internal successors, (156), 8 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:12:39,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:39,951 INFO L93 Difference]: Finished difference Result 918 states and 1317 transitions. [2022-11-02 21:12:39,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-02 21:12:39,951 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 19.5) internal successors, (156), 8 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 156 [2022-11-02 21:12:39,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:39,954 INFO L225 Difference]: With dead ends: 918 [2022-11-02 21:12:39,954 INFO L226 Difference]: Without dead ends: 787 [2022-11-02 21:12:39,955 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2022-11-02 21:12:39,955 INFO L413 NwaCegarLoop]: 305 mSDtfsCounter, 1331 mSDsluCounter, 1827 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1331 SdHoareTripleChecker+Valid, 2132 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:39,955 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1331 Valid, 2132 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-02 21:12:39,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 787 states. [2022-11-02 21:12:39,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 787 to 317. [2022-11-02 21:12:39,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 316 states have (on average 1.3575949367088607) internal successors, (429), 316 states have internal predecessors, (429), 0 states have call successors, (0), 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 21:12:39,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 429 transitions. [2022-11-02 21:12:39,964 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 429 transitions. Word has length 156 [2022-11-02 21:12:39,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:39,977 INFO L495 AbstractCegarLoop]: Abstraction has 317 states and 429 transitions. [2022-11-02 21:12:39,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 19.5) internal successors, (156), 8 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:12:39,977 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 429 transitions. [2022-11-02 21:12:39,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-02 21:12:39,978 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:39,979 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:12:39,999 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (37)] Forceful destruction successful, exit code 0 [2022-11-02 21:12:40,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:12:40,197 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:12:40,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:40,197 INFO L85 PathProgramCache]: Analyzing trace with hash -466135719, now seen corresponding path program 1 times [2022-11-02 21:12:40,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:12:40,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1982643172] [2022-11-02 21:12:40,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:40,198 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:12:40,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:12:40,199 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:12:40,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2022-11-02 21:12:40,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:40,569 INFO L263 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-02 21:12:40,572 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:12:41,070 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-02 21:12:41,071 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:12:41,919 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-02 21:12:41,919 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:12:41,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1982643172] [2022-11-02 21:12:41,919 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1982643172] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 21:12:41,920 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-02 21:12:41,920 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 21 [2022-11-02 21:12:41,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158377567] [2022-11-02 21:12:41,920 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-02 21:12:41,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-02 21:12:41,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:12:41,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-02 21:12:41,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=372, Unknown=0, NotChecked=0, Total=420 [2022-11-02 21:12:41,922 INFO L87 Difference]: Start difference. First operand 317 states and 429 transitions. Second operand has 21 states, 21 states have (on average 13.666666666666666) internal successors, (287), 21 states have internal predecessors, (287), 0 states have call successors, (0), 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 21:12:42,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:42,775 INFO L93 Difference]: Finished difference Result 1251 states and 1773 transitions. [2022-11-02 21:12:42,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-11-02 21:12:42,775 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 13.666666666666666) internal successors, (287), 21 states have internal predecessors, (287), 0 states have call successors, (0), 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 156 [2022-11-02 21:12:42,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:42,779 INFO L225 Difference]: With dead ends: 1251 [2022-11-02 21:12:42,779 INFO L226 Difference]: Without dead ends: 1120 [2022-11-02 21:12:42,781 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 290 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 256 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=397, Invalid=1495, Unknown=0, NotChecked=0, Total=1892 [2022-11-02 21:12:42,781 INFO L413 NwaCegarLoop]: 611 mSDtfsCounter, 2621 mSDsluCounter, 6882 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2621 SdHoareTripleChecker+Valid, 7493 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 203 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:42,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2621 Valid, 7493 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 140 Invalid, 0 Unknown, 203 Unchecked, 0.2s Time] [2022-11-02 21:12:42,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1120 states. [2022-11-02 21:12:42,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1120 to 534. [2022-11-02 21:12:42,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 533 states have (on average 1.3733583489681052) internal successors, (732), 533 states have internal predecessors, (732), 0 states have call successors, (0), 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 21:12:42,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 732 transitions. [2022-11-02 21:12:42,795 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 732 transitions. Word has length 156 [2022-11-02 21:12:42,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:42,796 INFO L495 AbstractCegarLoop]: Abstraction has 534 states and 732 transitions. [2022-11-02 21:12:42,796 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 13.666666666666666) internal successors, (287), 21 states have internal predecessors, (287), 0 states have call successors, (0), 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 21:12:42,796 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 732 transitions. [2022-11-02 21:12:42,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-02 21:12:42,797 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:42,798 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:12:42,814 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (38)] Ended with exit code 0 [2022-11-02 21:12:43,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:12:43,011 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:12:43,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:43,012 INFO L85 PathProgramCache]: Analyzing trace with hash -600149225, now seen corresponding path program 1 times [2022-11-02 21:12:43,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:12:43,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [990381217] [2022-11-02 21:12:43,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:43,013 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:12:43,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:12:43,014 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:12:43,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2022-11-02 21:12:43,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:43,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-02 21:12:43,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:12:44,009 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 20 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-02 21:12:44,009 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:12:44,796 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 20 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-02 21:12:44,796 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:12:44,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [990381217] [2022-11-02 21:12:44,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [990381217] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 21:12:44,797 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-02 21:12:44,797 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 23 [2022-11-02 21:12:44,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333432642] [2022-11-02 21:12:44,797 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-02 21:12:44,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-02 21:12:44,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:12:44,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-02 21:12:44,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=453, Unknown=0, NotChecked=0, Total=506 [2022-11-02 21:12:44,799 INFO L87 Difference]: Start difference. First operand 534 states and 732 transitions. Second operand has 23 states, 23 states have (on average 12.565217391304348) internal successors, (289), 23 states have internal predecessors, (289), 0 states have call successors, (0), 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 21:12:45,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:45,795 INFO L93 Difference]: Finished difference Result 1353 states and 1927 transitions. [2022-11-02 21:12:45,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-11-02 21:12:45,796 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 12.565217391304348) internal successors, (289), 23 states have internal predecessors, (289), 0 states have call successors, (0), 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 156 [2022-11-02 21:12:45,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:45,799 INFO L225 Difference]: With dead ends: 1353 [2022-11-02 21:12:45,799 INFO L226 Difference]: Without dead ends: 1093 [2022-11-02 21:12:45,801 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 288 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 432 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=548, Invalid=2104, Unknown=0, NotChecked=0, Total=2652 [2022-11-02 21:12:45,801 INFO L413 NwaCegarLoop]: 503 mSDtfsCounter, 2607 mSDsluCounter, 6727 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2607 SdHoareTripleChecker+Valid, 7230 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 263 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:45,802 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2607 Valid, 7230 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 178 Invalid, 0 Unknown, 263 Unchecked, 0.3s Time] [2022-11-02 21:12:45,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1093 states. [2022-11-02 21:12:45,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1093 to 534. [2022-11-02 21:12:45,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 533 states have (on average 1.3714821763602252) internal successors, (731), 533 states have internal predecessors, (731), 0 states have call successors, (0), 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 21:12:45,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 731 transitions. [2022-11-02 21:12:45,813 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 731 transitions. Word has length 156 [2022-11-02 21:12:45,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:45,813 INFO L495 AbstractCegarLoop]: Abstraction has 534 states and 731 transitions. [2022-11-02 21:12:45,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 12.565217391304348) internal successors, (289), 23 states have internal predecessors, (289), 0 states have call successors, (0), 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 21:12:45,813 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 731 transitions. [2022-11-02 21:12:45,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-02 21:12:45,815 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:45,815 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:12:45,835 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (39)] Forceful destruction successful, exit code 0 [2022-11-02 21:12:46,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:12:46,032 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:12:46,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:46,033 INFO L85 PathProgramCache]: Analyzing trace with hash -381294507, now seen corresponding path program 1 times [2022-11-02 21:12:46,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:12:46,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1578191197] [2022-11-02 21:12:46,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:46,034 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:12:46,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:12:46,035 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:12:46,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2022-11-02 21:12:46,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:46,452 INFO L263 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-02 21:12:46,454 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:12:47,111 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 18 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-02 21:12:47,111 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:12:47,915 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 18 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-02 21:12:47,915 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:12:47,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1578191197] [2022-11-02 21:12:47,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1578191197] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 21:12:47,915 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-02 21:12:47,916 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 24 [2022-11-02 21:12:47,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046008255] [2022-11-02 21:12:47,916 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-02 21:12:47,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-02 21:12:47,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:12:47,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-02 21:12:47,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=497, Unknown=0, NotChecked=0, Total=552 [2022-11-02 21:12:47,918 INFO L87 Difference]: Start difference. First operand 534 states and 731 transitions. Second operand has 24 states, 24 states have (on average 12.041666666666666) internal successors, (289), 24 states have internal predecessors, (289), 0 states have call successors, (0), 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 21:12:49,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:49,123 INFO L93 Difference]: Finished difference Result 1378 states and 1958 transitions. [2022-11-02 21:12:49,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-11-02 21:12:49,124 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 12.041666666666666) internal successors, (289), 24 states have internal predecessors, (289), 0 states have call successors, (0), 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 156 [2022-11-02 21:12:49,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:49,127 INFO L225 Difference]: With dead ends: 1378 [2022-11-02 21:12:49,127 INFO L226 Difference]: Without dead ends: 1118 [2022-11-02 21:12:49,129 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 341 GetRequests, 287 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 472 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=676, Invalid=2294, Unknown=0, NotChecked=0, Total=2970 [2022-11-02 21:12:49,129 INFO L413 NwaCegarLoop]: 610 mSDtfsCounter, 4274 mSDsluCounter, 8733 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4274 SdHoareTripleChecker+Valid, 9343 SdHoareTripleChecker+Invalid, 613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 308 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:49,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4274 Valid, 9343 Invalid, 613 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 253 Invalid, 0 Unknown, 308 Unchecked, 0.3s Time] [2022-11-02 21:12:49,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1118 states. [2022-11-02 21:12:49,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1118 to 534. [2022-11-02 21:12:49,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 533 states have (on average 1.3696060037523452) internal successors, (730), 533 states have internal predecessors, (730), 0 states have call successors, (0), 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 21:12:49,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 730 transitions. [2022-11-02 21:12:49,155 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 730 transitions. Word has length 156 [2022-11-02 21:12:49,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:49,155 INFO L495 AbstractCegarLoop]: Abstraction has 534 states and 730 transitions. [2022-11-02 21:12:49,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 12.041666666666666) internal successors, (289), 24 states have internal predecessors, (289), 0 states have call successors, (0), 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 21:12:49,155 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 730 transitions. [2022-11-02 21:12:49,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-02 21:12:49,157 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:49,157 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:12:49,176 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (40)] Ended with exit code 0 [2022-11-02 21:12:49,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:12:49,371 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:12:49,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:49,371 INFO L85 PathProgramCache]: Analyzing trace with hash -1198942957, now seen corresponding path program 1 times [2022-11-02 21:12:49,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:12:49,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [929620103] [2022-11-02 21:12:49,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:49,373 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:12:49,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:12:49,375 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:12:49,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2022-11-02 21:12:49,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:49,789 INFO L263 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 30 conjunts are in the unsatisfiable core [2022-11-02 21:12:49,792 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:12:51,020 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-02 21:12:51,020 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:12:56,229 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-02 21:12:56,230 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:12:56,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [929620103] [2022-11-02 21:12:56,230 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [929620103] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 21:12:56,230 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-02 21:12:56,230 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 22 [2022-11-02 21:12:56,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373894116] [2022-11-02 21:12:56,231 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-02 21:12:56,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-02 21:12:56,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:12:56,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-02 21:12:56,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=412, Unknown=0, NotChecked=0, Total=462 [2022-11-02 21:12:56,233 INFO L87 Difference]: Start difference. First operand 534 states and 730 transitions. Second operand has 22 states, 22 states have (on average 13.045454545454545) internal successors, (287), 22 states have internal predecessors, (287), 0 states have call successors, (0), 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 21:12:57,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:57,655 INFO L93 Difference]: Finished difference Result 1323 states and 1879 transitions. [2022-11-02 21:12:57,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-02 21:12:57,656 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 13.045454545454545) internal successors, (287), 22 states have internal predecessors, (287), 0 states have call successors, (0), 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 156 [2022-11-02 21:12:57,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:57,659 INFO L225 Difference]: With dead ends: 1323 [2022-11-02 21:12:57,659 INFO L226 Difference]: Without dead ends: 1063 [2022-11-02 21:12:57,660 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 289 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=361, Invalid=1619, Unknown=0, NotChecked=0, Total=1980 [2022-11-02 21:12:57,660 INFO L413 NwaCegarLoop]: 407 mSDtfsCounter, 2183 mSDsluCounter, 4353 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2183 SdHoareTripleChecker+Valid, 4760 SdHoareTripleChecker+Invalid, 1491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1140 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:57,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2183 Valid, 4760 Invalid, 1491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 333 Invalid, 0 Unknown, 1140 Unchecked, 0.5s Time] [2022-11-02 21:12:57,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1063 states. [2022-11-02 21:12:57,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1063 to 534. [2022-11-02 21:12:57,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 533 states have (on average 1.3677298311444652) internal successors, (729), 533 states have internal predecessors, (729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:12:57,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 729 transitions. [2022-11-02 21:12:57,672 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 729 transitions. Word has length 156 [2022-11-02 21:12:57,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:57,672 INFO L495 AbstractCegarLoop]: Abstraction has 534 states and 729 transitions. [2022-11-02 21:12:57,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 13.045454545454545) internal successors, (287), 22 states have internal predecessors, (287), 0 states have call successors, (0), 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 21:12:57,672 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 729 transitions. [2022-11-02 21:12:57,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-02 21:12:57,674 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:57,674 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:12:57,695 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (41)] Forceful destruction successful, exit code 0 [2022-11-02 21:12:57,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:12:57,887 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:12:57,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:57,887 INFO L85 PathProgramCache]: Analyzing trace with hash 1101879633, now seen corresponding path program 1 times [2022-11-02 21:12:57,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:12:57,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [980682061] [2022-11-02 21:12:57,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:57,889 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:12:57,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:12:57,890 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:12:57,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (42)] Waiting until timeout for monitored process [2022-11-02 21:12:58,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:58,286 INFO L263 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-02 21:12:58,290 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:12:58,852 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 14 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-02 21:12:58,852 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:12:59,187 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 14 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-02 21:12:59,187 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:12:59,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [980682061] [2022-11-02 21:12:59,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [980682061] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 21:12:59,187 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-02 21:12:59,188 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2022-11-02 21:12:59,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194897777] [2022-11-02 21:12:59,188 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-02 21:12:59,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-02 21:12:59,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:12:59,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-02 21:12:59,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-11-02 21:12:59,190 INFO L87 Difference]: Start difference. First operand 534 states and 729 transitions. Second operand has 11 states, 11 states have (on average 25.363636363636363) internal successors, (279), 11 states have internal predecessors, (279), 0 states have call successors, (0), 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 21:12:59,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:59,746 INFO L93 Difference]: Finished difference Result 1844 states and 2617 transitions. [2022-11-02 21:12:59,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-02 21:12:59,747 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 25.363636363636363) internal successors, (279), 11 states have internal predecessors, (279), 0 states have call successors, (0), 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 156 [2022-11-02 21:12:59,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:59,751 INFO L225 Difference]: With dead ends: 1844 [2022-11-02 21:12:59,751 INFO L226 Difference]: Without dead ends: 1584 [2022-11-02 21:12:59,753 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 300 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2022-11-02 21:12:59,753 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 1703 mSDsluCounter, 1739 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1703 SdHoareTripleChecker+Valid, 1946 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 180 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:59,754 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1703 Valid, 1946 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 266 Invalid, 0 Unknown, 180 Unchecked, 0.4s Time] [2022-11-02 21:12:59,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1584 states. [2022-11-02 21:12:59,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1584 to 994. [2022-11-02 21:12:59,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 994 states, 993 states have (on average 1.3776435045317221) internal successors, (1368), 993 states have internal predecessors, (1368), 0 states have call successors, (0), 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 21:12:59,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 994 states to 994 states and 1368 transitions. [2022-11-02 21:12:59,784 INFO L78 Accepts]: Start accepts. Automaton has 994 states and 1368 transitions. Word has length 156 [2022-11-02 21:12:59,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:59,784 INFO L495 AbstractCegarLoop]: Abstraction has 994 states and 1368 transitions. [2022-11-02 21:12:59,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 25.363636363636363) internal successors, (279), 11 states have internal predecessors, (279), 0 states have call successors, (0), 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 21:12:59,785 INFO L276 IsEmpty]: Start isEmpty. Operand 994 states and 1368 transitions. [2022-11-02 21:12:59,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-02 21:12:59,787 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:59,787 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:12:59,814 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (42)] Forceful destruction successful, exit code 0 [2022-11-02 21:13:00,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:13:00,009 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:13:00,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:13:00,009 INFO L85 PathProgramCache]: Analyzing trace with hash 80811279, now seen corresponding path program 1 times [2022-11-02 21:13:00,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:13:00,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [672042817] [2022-11-02 21:13:00,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:13:00,010 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:13:00,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:13:00,011 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:13:00,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (43)] Waiting until timeout for monitored process [2022-11-02 21:13:00,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:00,382 INFO L263 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-02 21:13:00,385 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:13:00,988 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 12 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-02 21:13:00,989 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:13:01,344 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 12 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-02 21:13:01,344 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:13:01,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [672042817] [2022-11-02 21:13:01,345 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [672042817] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 21:13:01,345 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-02 21:13:01,345 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2022-11-02 21:13:01,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736088596] [2022-11-02 21:13:01,345 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-02 21:13:01,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-02 21:13:01,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:13:01,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-02 21:13:01,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-11-02 21:13:01,347 INFO L87 Difference]: Start difference. First operand 994 states and 1368 transitions. Second operand has 12 states, 12 states have (on average 23.25) internal successors, (279), 12 states have internal predecessors, (279), 0 states have call successors, (0), 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 21:13:01,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:13:01,942 INFO L93 Difference]: Finished difference Result 2098 states and 2989 transitions. [2022-11-02 21:13:01,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-02 21:13:01,943 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 23.25) internal successors, (279), 12 states have internal predecessors, (279), 0 states have call successors, (0), 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 156 [2022-11-02 21:13:01,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:13:01,947 INFO L225 Difference]: With dead ends: 2098 [2022-11-02 21:13:01,948 INFO L226 Difference]: Without dead ends: 1580 [2022-11-02 21:13:01,949 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 299 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=110, Invalid=270, Unknown=0, NotChecked=0, Total=380 [2022-11-02 21:13:01,950 INFO L413 NwaCegarLoop]: 201 mSDtfsCounter, 1909 mSDsluCounter, 2141 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1909 SdHoareTripleChecker+Valid, 2342 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 185 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-02 21:13:01,950 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1909 Valid, 2342 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 298 Invalid, 0 Unknown, 185 Unchecked, 0.5s Time] [2022-11-02 21:13:01,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1580 states. [2022-11-02 21:13:01,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1580 to 994. [2022-11-02 21:13:01,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 994 states, 993 states have (on average 1.3756294058408862) internal successors, (1366), 993 states have internal predecessors, (1366), 0 states have call successors, (0), 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 21:13:01,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 994 states to 994 states and 1366 transitions. [2022-11-02 21:13:01,976 INFO L78 Accepts]: Start accepts. Automaton has 994 states and 1366 transitions. Word has length 156 [2022-11-02 21:13:01,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:13:01,976 INFO L495 AbstractCegarLoop]: Abstraction has 994 states and 1366 transitions. [2022-11-02 21:13:01,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 23.25) internal successors, (279), 12 states have internal predecessors, (279), 0 states have call successors, (0), 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 21:13:01,977 INFO L276 IsEmpty]: Start isEmpty. Operand 994 states and 1366 transitions. [2022-11-02 21:13:01,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-02 21:13:01,978 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:13:01,979 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:13:01,996 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (43)] Forceful destruction successful, exit code 0 [2022-11-02 21:13:02,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:13:02,195 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:13:02,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:13:02,196 INFO L85 PathProgramCache]: Analyzing trace with hash -930305971, now seen corresponding path program 1 times [2022-11-02 21:13:02,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:13:02,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [826514255] [2022-11-02 21:13:02,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:13:02,197 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:13:02,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:13:02,198 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:13:02,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (44)] Waiting until timeout for monitored process [2022-11-02 21:13:02,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:02,617 INFO L263 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-02 21:13:02,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:13:03,197 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 10 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-02 21:13:03,197 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:13:03,588 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 10 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-02 21:13:03,588 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:13:03,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [826514255] [2022-11-02 21:13:03,588 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [826514255] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 21:13:03,588 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-02 21:13:03,589 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2022-11-02 21:13:03,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147222873] [2022-11-02 21:13:03,589 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-02 21:13:03,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-02 21:13:03,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:13:03,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-02 21:13:03,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-11-02 21:13:03,591 INFO L87 Difference]: Start difference. First operand 994 states and 1366 transitions. Second operand has 12 states, 12 states have (on average 23.25) internal successors, (279), 12 states have internal predecessors, (279), 0 states have call successors, (0), 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 21:13:04,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:13:04,263 INFO L93 Difference]: Finished difference Result 2002 states and 2845 transitions. [2022-11-02 21:13:04,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-02 21:13:04,263 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 23.25) internal successors, (279), 12 states have internal predecessors, (279), 0 states have call successors, (0), 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 156 [2022-11-02 21:13:04,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:13:04,267 INFO L225 Difference]: With dead ends: 2002 [2022-11-02 21:13:04,267 INFO L226 Difference]: Without dead ends: 1484 [2022-11-02 21:13:04,269 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 299 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=268, Unknown=0, NotChecked=0, Total=380 [2022-11-02 21:13:04,269 INFO L413 NwaCegarLoop]: 393 mSDtfsCounter, 1840 mSDsluCounter, 2040 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1840 SdHoareTripleChecker+Valid, 2433 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 123 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-02 21:13:04,270 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1840 Valid, 2433 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 309 Invalid, 0 Unknown, 123 Unchecked, 0.5s Time] [2022-11-02 21:13:04,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1484 states. [2022-11-02 21:13:04,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1484 to 994. [2022-11-02 21:13:04,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 994 states, 993 states have (on average 1.3736153071500503) internal successors, (1364), 993 states have internal predecessors, (1364), 0 states have call successors, (0), 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 21:13:04,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 994 states to 994 states and 1364 transitions. [2022-11-02 21:13:04,304 INFO L78 Accepts]: Start accepts. Automaton has 994 states and 1364 transitions. Word has length 156 [2022-11-02 21:13:04,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:13:04,304 INFO L495 AbstractCegarLoop]: Abstraction has 994 states and 1364 transitions. [2022-11-02 21:13:04,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 23.25) internal successors, (279), 12 states have internal predecessors, (279), 0 states have call successors, (0), 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 21:13:04,305 INFO L276 IsEmpty]: Start isEmpty. Operand 994 states and 1364 transitions. [2022-11-02 21:13:04,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-02 21:13:04,307 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:13:04,307 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:13:04,330 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (44)] Forceful destruction successful, exit code 0 [2022-11-02 21:13:04,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:13:04,526 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:13:04,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:13:04,526 INFO L85 PathProgramCache]: Analyzing trace with hash -672140533, now seen corresponding path program 1 times [2022-11-02 21:13:04,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:13:04,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1884433712] [2022-11-02 21:13:04,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:13:04,528 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:13:04,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:13:04,529 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:13:04,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (45)] Waiting until timeout for monitored process [2022-11-02 21:13:04,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:04,926 INFO L263 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-02 21:13:04,929 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:13:05,420 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-02 21:13:05,420 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:13:05,867 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-02 21:13:05,868 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:13:05,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1884433712] [2022-11-02 21:13:05,868 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1884433712] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 21:13:05,868 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-02 21:13:05,868 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2022-11-02 21:13:05,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501443815] [2022-11-02 21:13:05,868 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-02 21:13:05,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-02 21:13:05,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:13:05,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-02 21:13:05,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-11-02 21:13:05,870 INFO L87 Difference]: Start difference. First operand 994 states and 1364 transitions. Second operand has 12 states, 12 states have (on average 23.25) internal successors, (279), 12 states have internal predecessors, (279), 0 states have call successors, (0), 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 21:13:06,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:13:06,422 INFO L93 Difference]: Finished difference Result 1956 states and 2773 transitions. [2022-11-02 21:13:06,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-02 21:13:06,423 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 23.25) internal successors, (279), 12 states have internal predecessors, (279), 0 states have call successors, (0), 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 156 [2022-11-02 21:13:06,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:13:06,426 INFO L225 Difference]: With dead ends: 1956 [2022-11-02 21:13:06,426 INFO L226 Difference]: Without dead ends: 1438 [2022-11-02 21:13:06,427 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 299 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=268, Unknown=0, NotChecked=0, Total=380 [2022-11-02 21:13:06,428 INFO L413 NwaCegarLoop]: 201 mSDtfsCounter, 1471 mSDsluCounter, 1827 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1471 SdHoareTripleChecker+Valid, 2028 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 207 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-02 21:13:06,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1471 Valid, 2028 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 258 Invalid, 0 Unknown, 207 Unchecked, 0.4s Time] [2022-11-02 21:13:06,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1438 states. [2022-11-02 21:13:06,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1438 to 994. [2022-11-02 21:13:06,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 994 states, 993 states have (on average 1.3716012084592144) internal successors, (1362), 993 states have internal predecessors, (1362), 0 states have call successors, (0), 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 21:13:06,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 994 states to 994 states and 1362 transitions. [2022-11-02 21:13:06,449 INFO L78 Accepts]: Start accepts. Automaton has 994 states and 1362 transitions. Word has length 156 [2022-11-02 21:13:06,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:13:06,449 INFO L495 AbstractCegarLoop]: Abstraction has 994 states and 1362 transitions. [2022-11-02 21:13:06,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 23.25) internal successors, (279), 12 states have internal predecessors, (279), 0 states have call successors, (0), 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 21:13:06,450 INFO L276 IsEmpty]: Start isEmpty. Operand 994 states and 1362 transitions. [2022-11-02 21:13:06,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-02 21:13:06,452 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:13:06,452 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:13:06,475 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (45)] Forceful destruction successful, exit code 0 [2022-11-02 21:13:06,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:13:06,669 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:13:06,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:13:06,670 INFO L85 PathProgramCache]: Analyzing trace with hash -1481487159, now seen corresponding path program 1 times [2022-11-02 21:13:06,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:13:06,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1476334962] [2022-11-02 21:13:06,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:13:06,671 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:13:06,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:13:06,672 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:13:06,673 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (46)] Waiting until timeout for monitored process [2022-11-02 21:13:07,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:07,102 INFO L263 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-02 21:13:07,107 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:13:07,628 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-02 21:13:07,629 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:13:08,015 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-02 21:13:08,015 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:13:08,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1476334962] [2022-11-02 21:13:08,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1476334962] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 21:13:08,016 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-02 21:13:08,016 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2022-11-02 21:13:08,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063323924] [2022-11-02 21:13:08,016 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-02 21:13:08,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-02 21:13:08,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:13:08,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-02 21:13:08,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-11-02 21:13:08,017 INFO L87 Difference]: Start difference. First operand 994 states and 1362 transitions. Second operand has 12 states, 12 states have (on average 23.25) internal successors, (279), 12 states have internal predecessors, (279), 0 states have call successors, (0), 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 21:13:08,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:13:08,722 INFO L93 Difference]: Finished difference Result 2082 states and 2953 transitions. [2022-11-02 21:13:08,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-02 21:13:08,722 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 23.25) internal successors, (279), 12 states have internal predecessors, (279), 0 states have call successors, (0), 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 156 [2022-11-02 21:13:08,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:13:08,725 INFO L225 Difference]: With dead ends: 2082 [2022-11-02 21:13:08,725 INFO L226 Difference]: Without dead ends: 1564 [2022-11-02 21:13:08,726 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 299 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=110, Invalid=270, Unknown=0, NotChecked=0, Total=380 [2022-11-02 21:13:08,727 INFO L413 NwaCegarLoop]: 203 mSDtfsCounter, 1883 mSDsluCounter, 2315 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1883 SdHoareTripleChecker+Valid, 2518 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 160 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-02 21:13:08,727 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1883 Valid, 2518 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 341 Invalid, 0 Unknown, 160 Unchecked, 0.5s Time] [2022-11-02 21:13:08,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1564 states. [2022-11-02 21:13:08,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1564 to 994. [2022-11-02 21:13:08,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 994 states, 993 states have (on average 1.3695871097683787) internal successors, (1360), 993 states have internal predecessors, (1360), 0 states have call successors, (0), 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 21:13:08,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 994 states to 994 states and 1360 transitions. [2022-11-02 21:13:08,748 INFO L78 Accepts]: Start accepts. Automaton has 994 states and 1360 transitions. Word has length 156 [2022-11-02 21:13:08,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:13:08,748 INFO L495 AbstractCegarLoop]: Abstraction has 994 states and 1360 transitions. [2022-11-02 21:13:08,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 23.25) internal successors, (279), 12 states have internal predecessors, (279), 0 states have call successors, (0), 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 21:13:08,749 INFO L276 IsEmpty]: Start isEmpty. Operand 994 states and 1360 transitions. [2022-11-02 21:13:08,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-02 21:13:08,751 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:13:08,751 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:13:08,771 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (46)] Forceful destruction successful, exit code 0 [2022-11-02 21:13:08,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:13:08,967 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:13:08,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:13:08,967 INFO L85 PathProgramCache]: Analyzing trace with hash -1424228857, now seen corresponding path program 1 times [2022-11-02 21:13:08,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:13:08,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1097666492] [2022-11-02 21:13:08,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:13:08,968 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:13:08,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:13:08,969 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:13:08,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (47)] Waiting until timeout for monitored process [2022-11-02 21:13:09,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:09,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-02 21:13:09,349 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:13:09,933 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 2 proven. 13 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-02 21:13:09,934 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:13:10,316 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 2 proven. 13 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-02 21:13:10,316 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:13:10,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1097666492] [2022-11-02 21:13:10,316 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1097666492] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 21:13:10,316 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-02 21:13:10,316 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2022-11-02 21:13:10,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072009405] [2022-11-02 21:13:10,317 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-02 21:13:10,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-02 21:13:10,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:13:10,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-02 21:13:10,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-11-02 21:13:10,318 INFO L87 Difference]: Start difference. First operand 994 states and 1360 transitions. Second operand has 12 states, 12 states have (on average 23.25) internal successors, (279), 12 states have internal predecessors, (279), 0 states have call successors, (0), 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 21:13:10,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:13:10,913 INFO L93 Difference]: Finished difference Result 1956 states and 2765 transitions. [2022-11-02 21:13:10,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-02 21:13:10,914 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 23.25) internal successors, (279), 12 states have internal predecessors, (279), 0 states have call successors, (0), 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 156 [2022-11-02 21:13:10,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:13:10,916 INFO L225 Difference]: With dead ends: 1956 [2022-11-02 21:13:10,916 INFO L226 Difference]: Without dead ends: 1438 [2022-11-02 21:13:10,917 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 299 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=268, Unknown=0, NotChecked=0, Total=380 [2022-11-02 21:13:10,918 INFO L413 NwaCegarLoop]: 205 mSDtfsCounter, 1295 mSDsluCounter, 1947 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1295 SdHoareTripleChecker+Valid, 2152 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 216 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-02 21:13:10,918 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1295 Valid, 2152 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 261 Invalid, 0 Unknown, 216 Unchecked, 0.4s Time] [2022-11-02 21:13:10,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1438 states. [2022-11-02 21:13:10,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1438 to 994. [2022-11-02 21:13:10,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 994 states, 993 states have (on average 1.3675730110775428) internal successors, (1358), 993 states have internal predecessors, (1358), 0 states have call successors, (0), 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 21:13:10,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 994 states to 994 states and 1358 transitions. [2022-11-02 21:13:10,939 INFO L78 Accepts]: Start accepts. Automaton has 994 states and 1358 transitions. Word has length 156 [2022-11-02 21:13:10,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:13:10,939 INFO L495 AbstractCegarLoop]: Abstraction has 994 states and 1358 transitions. [2022-11-02 21:13:10,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 23.25) internal successors, (279), 12 states have internal predecessors, (279), 0 states have call successors, (0), 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 21:13:10,940 INFO L276 IsEmpty]: Start isEmpty. Operand 994 states and 1358 transitions. [2022-11-02 21:13:10,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-02 21:13:10,942 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:13:10,942 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:13:10,964 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (47)] Forceful destruction successful, exit code 0 [2022-11-02 21:13:11,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:13:11,158 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:13:11,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:13:11,159 INFO L85 PathProgramCache]: Analyzing trace with hash -1424169275, now seen corresponding path program 1 times [2022-11-02 21:13:11,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:13:11,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1462325872] [2022-11-02 21:13:11,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:13:11,160 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:13:11,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:13:11,160 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:13:11,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (48)] Waiting until timeout for monitored process [2022-11-02 21:13:11,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:11,551 INFO L263 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 149 conjunts are in the unsatisfiable core [2022-11-02 21:13:11,559 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:13:23,655 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:13:23,656 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:13:52,555 WARN L230 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2022-11-02 21:13:52,556 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 101 [2022-11-02 21:13:52,556 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:13:52,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1462325872] [2022-11-02 21:13:52,557 WARN L319 FreeRefinementEngine]: Global settings require throwing the following exception [2022-11-02 21:13:52,570 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (48)] Forceful destruction successful, exit code 0 [2022-11-02 21:13:52,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:13:52,758 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.checkSat(ManagedScript.java:139) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker.checkImplication(MonolithicImplicationChecker.java:85) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.compare(PredicateUnifier.java:894) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.(PredicateUnifier.java:768) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:345) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:305) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp$UnifyPostprocessor.postprocess(TraceCheckSpWp.java:582) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:399) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:271) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:342) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:185) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:163) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1465) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:658) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:239) ... 45 more [2022-11-02 21:13:52,761 INFO L158 Benchmark]: Toolchain (without parser) took 124919.33ms. Allocated memory was 60.8MB in the beginning and 423.6MB in the end (delta: 362.8MB). Free memory was 38.5MB in the beginning and 284.6MB in the end (delta: -246.1MB). Peak memory consumption was 270.4MB. Max. memory is 16.1GB. [2022-11-02 21:13:52,762 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 60.8MB. Free memory was 41.4MB in the beginning and 41.3MB in the end (delta: 48.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 21:13:52,762 INFO L158 Benchmark]: CACSL2BoogieTranslator took 661.11ms. Allocated memory is still 60.8MB. Free memory was 38.4MB in the beginning and 24.0MB in the end (delta: 14.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-02 21:13:52,762 INFO L158 Benchmark]: Boogie Procedure Inliner took 145.72ms. Allocated memory is still 60.8MB. Free memory was 24.0MB in the beginning and 35.4MB in the end (delta: -11.4MB). Peak memory consumption was 6.6MB. Max. memory is 16.1GB. [2022-11-02 21:13:52,762 INFO L158 Benchmark]: Boogie Preprocessor took 72.25ms. Allocated memory is still 60.8MB. Free memory was 35.4MB in the beginning and 30.7MB in the end (delta: 4.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-02 21:13:52,763 INFO L158 Benchmark]: RCFGBuilder took 1288.95ms. Allocated memory was 60.8MB in the beginning and 77.6MB in the end (delta: 16.8MB). Free memory was 30.7MB in the beginning and 33.9MB in the end (delta: -3.3MB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB. [2022-11-02 21:13:52,763 INFO L158 Benchmark]: TraceAbstraction took 122743.95ms. Allocated memory was 77.6MB in the beginning and 423.6MB in the end (delta: 346.0MB). Free memory was 33.2MB in the beginning and 284.6MB in the end (delta: -251.5MB). Peak memory consumption was 249.2MB. Max. memory is 16.1GB. [2022-11-02 21:13:52,764 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 60.8MB. Free memory was 41.4MB in the beginning and 41.3MB in the end (delta: 48.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 661.11ms. Allocated memory is still 60.8MB. Free memory was 38.4MB in the beginning and 24.0MB in the end (delta: 14.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 145.72ms. Allocated memory is still 60.8MB. Free memory was 24.0MB in the beginning and 35.4MB in the end (delta: -11.4MB). Peak memory consumption was 6.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 72.25ms. Allocated memory is still 60.8MB. Free memory was 35.4MB in the beginning and 30.7MB in the end (delta: 4.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 1288.95ms. Allocated memory was 60.8MB in the beginning and 77.6MB in the end (delta: 16.8MB). Free memory was 30.7MB in the beginning and 33.9MB in the end (delta: -3.3MB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB. * TraceAbstraction took 122743.95ms. Allocated memory was 77.6MB in the beginning and 423.6MB in the end (delta: 346.0MB). Free memory was 33.2MB in the beginning and 284.6MB in the end (delta: -251.5MB). Peak memory consumption was 249.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815318ac-8331-4cbc-a490-cefa7719b67a/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory")