./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety/test-0232-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/test-0232-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1228d922512a0e9364273220ccc1e5afc3bfb7c0e22f10439a1ba902492e71b2 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/test-0232-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1228d922512a0e9364273220ccc1e5afc3bfb7c0e22f10439a1ba902492e71b2 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-24 10:25:24,777 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-24 10:25:24,781 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-24 10:25:24,842 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-24 10:25:24,843 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-24 10:25:24,848 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-24 10:25:24,850 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-24 10:25:24,855 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-24 10:25:24,858 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-24 10:25:24,865 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-24 10:25:24,867 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-24 10:25:24,869 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-24 10:25:24,869 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-24 10:25:24,872 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-24 10:25:24,875 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-24 10:25:24,882 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-24 10:25:24,885 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-24 10:25:24,887 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-24 10:25:24,889 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-24 10:25:24,894 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-24 10:25:24,898 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-24 10:25:24,899 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-24 10:25:24,903 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-24 10:25:24,904 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-24 10:25:24,911 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-24 10:25:24,911 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-24 10:25:24,912 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-24 10:25:24,914 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-24 10:25:24,915 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-24 10:25:24,916 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-24 10:25:24,916 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-24 10:25:24,917 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-24 10:25:24,917 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-24 10:25:24,918 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-24 10:25:24,919 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-24 10:25:24,919 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-24 10:25:24,920 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-24 10:25:24,920 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-24 10:25:24,921 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-24 10:25:24,921 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-24 10:25:24,922 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-24 10:25:24,923 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-10-24 10:25:24,949 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 10:25:24,949 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 10:25:24,950 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-24 10:25:24,950 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-24 10:25:24,950 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-24 10:25:24,951 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-24 10:25:24,951 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-24 10:25:24,951 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-24 10:25:24,951 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-24 10:25:24,951 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-24 10:25:24,952 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-24 10:25:24,952 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-24 10:25:24,952 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-24 10:25:24,952 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-24 10:25:24,952 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-24 10:25:24,953 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-24 10:25:24,953 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-24 10:25:24,954 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 10:25:24,954 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-24 10:25:24,954 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-24 10:25:24,954 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-24 10:25:24,954 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-24 10:25:24,955 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 10:25:24,955 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-24 10:25:24,955 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-24 10:25:24,955 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-24 10:25:24,955 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 10:25:24,956 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-24 10:25:24,956 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-24 10:25:24,956 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 10:25:24,956 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 10:25:24,956 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 10:25:24,957 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:25:24,957 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 10:25:24,957 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 10:25:24,957 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-24 10:25:24,958 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-24 10:25:24,958 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-24 10:25:24,958 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-24 10:25:24,958 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1228d922512a0e9364273220ccc1e5afc3bfb7c0e22f10439a1ba902492e71b2 [2021-10-24 10:25:25,183 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 10:25:25,203 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 10:25:25,205 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 10:25:25,206 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-24 10:25:25,210 INFO L275 PluginConnector]: CDTParser initialized [2021-10-24 10:25:25,211 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/../../sv-benchmarks/c/memsafety/test-0232-1.i [2021-10-24 10:25:25,291 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/data/ca7408cf6/8e93f5d03cf04ef6b6365c403e25f064/FLAG08fdf5611 [2021-10-24 10:25:25,795 INFO L306 CDTParser]: Found 1 translation units. [2021-10-24 10:25:25,796 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/sv-benchmarks/c/memsafety/test-0232-1.i [2021-10-24 10:25:25,811 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/data/ca7408cf6/8e93f5d03cf04ef6b6365c403e25f064/FLAG08fdf5611 [2021-10-24 10:25:26,103 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/data/ca7408cf6/8e93f5d03cf04ef6b6365c403e25f064 [2021-10-24 10:25:26,106 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 10:25:26,109 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-24 10:25:26,112 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-24 10:25:26,113 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-24 10:25:26,116 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-24 10:25:26,117 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:25:26" (1/1) ... [2021-10-24 10:25:26,118 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e6c11a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:25:26, skipping insertion in model container [2021-10-24 10:25:26,118 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:25:26" (1/1) ... [2021-10-24 10:25:26,125 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-24 10:25:26,195 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 10:25:26,551 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:25:26,561 INFO L203 MainTranslator]: Completed pre-run [2021-10-24 10:25:26,623 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:25:26,660 INFO L208 MainTranslator]: Completed translation [2021-10-24 10:25:26,661 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:25:26 WrapperNode [2021-10-24 10:25:26,661 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-24 10:25:26,662 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-24 10:25:26,662 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-24 10:25:26,662 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-24 10:25:26,670 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:25:26" (1/1) ... [2021-10-24 10:25:26,706 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:25:26" (1/1) ... [2021-10-24 10:25:26,738 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-24 10:25:26,739 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-24 10:25:26,739 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-24 10:25:26,739 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-24 10:25:26,747 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:25:26" (1/1) ... [2021-10-24 10:25:26,748 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:25:26" (1/1) ... [2021-10-24 10:25:26,757 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:25:26" (1/1) ... [2021-10-24 10:25:26,758 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:25:26" (1/1) ... [2021-10-24 10:25:26,778 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:25:26" (1/1) ... [2021-10-24 10:25:26,785 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:25:26" (1/1) ... [2021-10-24 10:25:26,787 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:25:26" (1/1) ... [2021-10-24 10:25:26,795 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-24 10:25:26,798 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-24 10:25:26,798 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-24 10:25:26,799 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-24 10:25:26,801 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:25:26" (1/1) ... [2021-10-24 10:25:26,810 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:25:26,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 10:25:26,840 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-24 10:25:26,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-24 10:25:26,896 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-24 10:25:26,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-24 10:25:26,896 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-24 10:25:26,896 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-24 10:25:26,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-24 10:25:26,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-24 10:25:26,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-24 10:25:26,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-24 10:25:26,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-24 10:25:27,514 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-24 10:25:27,515 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-10-24 10:25:27,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:25:27 BoogieIcfgContainer [2021-10-24 10:25:27,518 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-24 10:25:27,519 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-24 10:25:27,520 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-24 10:25:27,525 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-24 10:25:27,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 10:25:26" (1/3) ... [2021-10-24 10:25:27,526 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a78a9c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:25:27, skipping insertion in model container [2021-10-24 10:25:27,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:25:26" (2/3) ... [2021-10-24 10:25:27,527 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a78a9c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:25:27, skipping insertion in model container [2021-10-24 10:25:27,527 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:25:27" (3/3) ... [2021-10-24 10:25:27,528 INFO L111 eAbstractionObserver]: Analyzing ICFG test-0232-1.i [2021-10-24 10:25:27,533 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-24 10:25:27,534 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 41 error locations. [2021-10-24 10:25:27,612 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-24 10:25:27,619 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-24 10:25:27,619 INFO L340 AbstractCegarLoop]: Starting to check reachability of 41 error locations. [2021-10-24 10:25:27,656 INFO L276 IsEmpty]: Start isEmpty. Operand has 73 states, 31 states have (on average 2.5161290322580645) internal successors, (78), 72 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:25:27,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-24 10:25:27,662 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:25:27,663 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-24 10:25:27,663 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 37 more)] === [2021-10-24 10:25:27,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:25:27,669 INFO L82 PathProgramCache]: Analyzing trace with hash 145305, now seen corresponding path program 1 times [2021-10-24 10:25:27,678 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:25:27,678 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708739290] [2021-10-24 10:25:27,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:25:27,680 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:25:27,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:25:27,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:25:27,907 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:25:27,908 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708739290] [2021-10-24 10:25:27,910 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708739290] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:25:27,910 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:25:27,911 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-24 10:25:27,919 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014208489] [2021-10-24 10:25:27,947 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 10:25:27,947 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:25:27,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 10:25:27,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:25:27,964 INFO L87 Difference]: Start difference. First operand has 73 states, 31 states have (on average 2.5161290322580645) internal successors, (78), 72 states have internal predecessors, (78), 0 states have call successors, (0), 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, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:25:28,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:25:28,103 INFO L93 Difference]: Finished difference Result 83 states and 87 transitions. [2021-10-24 10:25:28,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 10:25:28,105 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 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 3 [2021-10-24 10:25:28,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:25:28,113 INFO L225 Difference]: With dead ends: 83 [2021-10-24 10:25:28,114 INFO L226 Difference]: Without dead ends: 82 [2021-10-24 10:25:28,115 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 21.4ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-24 10:25:28,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2021-10-24 10:25:28,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 64. [2021-10-24 10:25:28,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 31 states have (on average 2.161290322580645) internal successors, (67), 63 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:25:28,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 67 transitions. [2021-10-24 10:25:28,151 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 67 transitions. Word has length 3 [2021-10-24 10:25:28,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:25:28,151 INFO L470 AbstractCegarLoop]: Abstraction has 64 states and 67 transitions. [2021-10-24 10:25:28,152 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:25:28,152 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 67 transitions. [2021-10-24 10:25:28,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-24 10:25:28,152 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:25:28,153 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-24 10:25:28,153 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-24 10:25:28,153 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 37 more)] === [2021-10-24 10:25:28,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:25:28,155 INFO L82 PathProgramCache]: Analyzing trace with hash 145306, now seen corresponding path program 1 times [2021-10-24 10:25:28,155 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:25:28,155 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954036351] [2021-10-24 10:25:28,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:25:28,156 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:25:28,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:25:28,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:25:28,256 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:25:28,257 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954036351] [2021-10-24 10:25:28,257 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954036351] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:25:28,257 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:25:28,257 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-24 10:25:28,258 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500521573] [2021-10-24 10:25:28,260 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 10:25:28,260 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:25:28,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 10:25:28,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:25:28,268 INFO L87 Difference]: Start difference. First operand 64 states and 67 transitions. Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:25:28,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:25:28,497 INFO L93 Difference]: Finished difference Result 132 states and 139 transitions. [2021-10-24 10:25:28,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 10:25:28,497 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 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 3 [2021-10-24 10:25:28,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:25:28,504 INFO L225 Difference]: With dead ends: 132 [2021-10-24 10:25:28,504 INFO L226 Difference]: Without dead ends: 132 [2021-10-24 10:25:28,505 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 31.1ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-24 10:25:28,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2021-10-24 10:25:28,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 67. [2021-10-24 10:25:28,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 38 states have (on average 1.9736842105263157) internal successors, (75), 66 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:25:28,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 75 transitions. [2021-10-24 10:25:28,528 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 75 transitions. Word has length 3 [2021-10-24 10:25:28,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:25:28,530 INFO L470 AbstractCegarLoop]: Abstraction has 67 states and 75 transitions. [2021-10-24 10:25:28,530 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:25:28,530 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 75 transitions. [2021-10-24 10:25:28,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-24 10:25:28,531 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:25:28,531 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-24 10:25:28,532 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-24 10:25:28,533 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 37 more)] === [2021-10-24 10:25:28,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:25:28,538 INFO L82 PathProgramCache]: Analyzing trace with hash 4504435, now seen corresponding path program 1 times [2021-10-24 10:25:28,538 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:25:28,539 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682245666] [2021-10-24 10:25:28,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:25:28,539 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:25:28,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:25:28,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:25:28,603 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:25:28,603 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682245666] [2021-10-24 10:25:28,603 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682245666] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:25:28,604 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:25:28,604 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-24 10:25:28,604 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657766878] [2021-10-24 10:25:28,605 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 10:25:28,605 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:25:28,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 10:25:28,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:25:28,606 INFO L87 Difference]: Start difference. First operand 67 states and 75 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:25:28,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:25:28,674 INFO L93 Difference]: Finished difference Result 73 states and 78 transitions. [2021-10-24 10:25:28,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:25:28,675 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 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 4 [2021-10-24 10:25:28,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:25:28,676 INFO L225 Difference]: With dead ends: 73 [2021-10-24 10:25:28,676 INFO L226 Difference]: Without dead ends: 73 [2021-10-24 10:25:28,677 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:25:28,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2021-10-24 10:25:28,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 63. [2021-10-24 10:25:28,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 38 states have (on average 1.8421052631578947) internal successors, (70), 62 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:25:28,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 70 transitions. [2021-10-24 10:25:28,682 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 70 transitions. Word has length 4 [2021-10-24 10:25:28,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:25:28,683 INFO L470 AbstractCegarLoop]: Abstraction has 63 states and 70 transitions. [2021-10-24 10:25:28,683 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:25:28,683 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 70 transitions. [2021-10-24 10:25:28,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-24 10:25:28,684 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:25:28,684 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-24 10:25:28,684 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-24 10:25:28,684 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 37 more)] === [2021-10-24 10:25:28,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:25:28,685 INFO L82 PathProgramCache]: Analyzing trace with hash 4504436, now seen corresponding path program 1 times [2021-10-24 10:25:28,685 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:25:28,686 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623076661] [2021-10-24 10:25:28,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:25:28,686 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:25:28,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:25:28,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:25:28,767 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:25:28,767 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623076661] [2021-10-24 10:25:28,768 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623076661] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:25:28,768 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:25:28,768 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-24 10:25:28,768 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878569359] [2021-10-24 10:25:28,769 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 10:25:28,769 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:25:28,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 10:25:28,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:25:28,770 INFO L87 Difference]: Start difference. First operand 63 states and 70 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:25:28,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:25:28,820 INFO L93 Difference]: Finished difference Result 60 states and 66 transitions. [2021-10-24 10:25:28,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:25:28,820 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 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 4 [2021-10-24 10:25:28,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:25:28,821 INFO L225 Difference]: With dead ends: 60 [2021-10-24 10:25:28,821 INFO L226 Difference]: Without dead ends: 60 [2021-10-24 10:25:28,822 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:25:28,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2021-10-24 10:25:28,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 59. [2021-10-24 10:25:28,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 38 states have (on average 1.7105263157894737) internal successors, (65), 58 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:25:28,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 65 transitions. [2021-10-24 10:25:28,826 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 65 transitions. Word has length 4 [2021-10-24 10:25:28,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:25:28,826 INFO L470 AbstractCegarLoop]: Abstraction has 59 states and 65 transitions. [2021-10-24 10:25:28,827 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:25:28,827 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 65 transitions. [2021-10-24 10:25:28,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-24 10:25:28,827 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:25:28,828 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:25:28,828 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-24 10:25:28,828 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 37 more)] === [2021-10-24 10:25:28,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:25:28,829 INFO L82 PathProgramCache]: Analyzing trace with hash -1784664986, now seen corresponding path program 1 times [2021-10-24 10:25:28,829 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:25:28,829 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919231236] [2021-10-24 10:25:28,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:25:28,829 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:25:28,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:25:28,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:25:28,932 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:25:28,932 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919231236] [2021-10-24 10:25:28,933 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919231236] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:25:28,933 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:25:28,933 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-24 10:25:28,933 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649240530] [2021-10-24 10:25:28,934 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-24 10:25:28,934 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:25:28,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-24 10:25:28,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-24 10:25:28,935 INFO L87 Difference]: Start difference. First operand 59 states and 65 transitions. Second operand has 7 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:25:29,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:25:29,093 INFO L93 Difference]: Finished difference Result 67 states and 73 transitions. [2021-10-24 10:25:29,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-24 10:25:29,094 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-10-24 10:25:29,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:25:29,096 INFO L225 Difference]: With dead ends: 67 [2021-10-24 10:25:29,096 INFO L226 Difference]: Without dead ends: 67 [2021-10-24 10:25:29,096 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 92.4ms TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-10-24 10:25:29,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2021-10-24 10:25:29,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 64. [2021-10-24 10:25:29,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 43 states have (on average 1.627906976744186) internal successors, (70), 63 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:25:29,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 70 transitions. [2021-10-24 10:25:29,114 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 70 transitions. Word has length 8 [2021-10-24 10:25:29,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:25:29,114 INFO L470 AbstractCegarLoop]: Abstraction has 64 states and 70 transitions. [2021-10-24 10:25:29,115 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:25:29,115 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 70 transitions. [2021-10-24 10:25:29,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-24 10:25:29,115 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:25:29,115 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:25:29,116 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-24 10:25:29,116 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr13REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 37 more)] === [2021-10-24 10:25:29,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:25:29,117 INFO L82 PathProgramCache]: Analyzing trace with hash -1784653287, now seen corresponding path program 1 times [2021-10-24 10:25:29,117 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:25:29,118 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272341520] [2021-10-24 10:25:29,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:25:29,122 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:25:29,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:25:29,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:25:29,263 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:25:29,263 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272341520] [2021-10-24 10:25:29,263 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272341520] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:25:29,263 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:25:29,263 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-24 10:25:29,264 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408625282] [2021-10-24 10:25:29,264 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-24 10:25:29,264 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:25:29,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-24 10:25:29,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-24 10:25:29,266 INFO L87 Difference]: Start difference. First operand 64 states and 70 transitions. Second operand has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:25:29,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:25:29,380 INFO L93 Difference]: Finished difference Result 72 states and 76 transitions. [2021-10-24 10:25:29,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-24 10:25:29,380 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-10-24 10:25:29,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:25:29,382 INFO L225 Difference]: With dead ends: 72 [2021-10-24 10:25:29,382 INFO L226 Difference]: Without dead ends: 72 [2021-10-24 10:25:29,382 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 47.0ms TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-10-24 10:25:29,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2021-10-24 10:25:29,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 61. [2021-10-24 10:25:29,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 41 states have (on average 1.6341463414634145) internal successors, (67), 60 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:25:29,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 67 transitions. [2021-10-24 10:25:29,390 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 67 transitions. Word has length 8 [2021-10-24 10:25:29,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:25:29,390 INFO L470 AbstractCegarLoop]: Abstraction has 61 states and 67 transitions. [2021-10-24 10:25:29,391 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:25:29,391 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 67 transitions. [2021-10-24 10:25:29,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-24 10:25:29,392 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:25:29,392 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:25:29,392 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-24 10:25:29,392 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr18REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 37 more)] === [2021-10-24 10:25:29,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:25:29,393 INFO L82 PathProgramCache]: Analyzing trace with hash 912679243, now seen corresponding path program 1 times [2021-10-24 10:25:29,393 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:25:29,394 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096412174] [2021-10-24 10:25:29,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:25:29,399 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:25:29,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:25:29,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:25:29,514 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:25:29,514 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096412174] [2021-10-24 10:25:29,515 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096412174] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:25:29,515 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:25:29,515 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-24 10:25:29,515 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399045713] [2021-10-24 10:25:29,516 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-24 10:25:29,516 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:25:29,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-24 10:25:29,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-24 10:25:29,518 INFO L87 Difference]: Start difference. First operand 61 states and 67 transitions. Second operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:25:29,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:25:29,647 INFO L93 Difference]: Finished difference Result 69 states and 73 transitions. [2021-10-24 10:25:29,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-24 10:25:29,648 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 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 13 [2021-10-24 10:25:29,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:25:29,648 INFO L225 Difference]: With dead ends: 69 [2021-10-24 10:25:29,648 INFO L226 Difference]: Without dead ends: 69 [2021-10-24 10:25:29,650 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 42.0ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-24 10:25:29,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2021-10-24 10:25:29,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 60. [2021-10-24 10:25:29,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 41 states have (on average 1.6097560975609757) internal successors, (66), 59 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:25:29,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 66 transitions. [2021-10-24 10:25:29,667 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 66 transitions. Word has length 13 [2021-10-24 10:25:29,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:25:29,668 INFO L470 AbstractCegarLoop]: Abstraction has 60 states and 66 transitions. [2021-10-24 10:25:29,668 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:25:29,668 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 66 transitions. [2021-10-24 10:25:29,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-24 10:25:29,669 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:25:29,669 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:25:29,669 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-24 10:25:29,669 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr19REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 37 more)] === [2021-10-24 10:25:29,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:25:29,670 INFO L82 PathProgramCache]: Analyzing trace with hash 912679244, now seen corresponding path program 1 times [2021-10-24 10:25:29,670 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:25:29,670 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324831157] [2021-10-24 10:25:29,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:25:29,671 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:25:29,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:25:29,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:25:29,841 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:25:29,841 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324831157] [2021-10-24 10:25:29,841 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324831157] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:25:29,841 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:25:29,841 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-24 10:25:29,841 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909346618] [2021-10-24 10:25:29,842 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-24 10:25:29,842 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:25:29,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-24 10:25:29,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-24 10:25:29,843 INFO L87 Difference]: Start difference. First operand 60 states and 66 transitions. Second operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:25:29,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:25:29,962 INFO L93 Difference]: Finished difference Result 71 states and 75 transitions. [2021-10-24 10:25:29,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 10:25:29,963 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 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 13 [2021-10-24 10:25:29,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:25:29,964 INFO L225 Difference]: With dead ends: 71 [2021-10-24 10:25:29,964 INFO L226 Difference]: Without dead ends: 71 [2021-10-24 10:25:29,964 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 57.2ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-24 10:25:29,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2021-10-24 10:25:29,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 59. [2021-10-24 10:25:29,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 41 states have (on average 1.5853658536585367) internal successors, (65), 58 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:25:29,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 65 transitions. [2021-10-24 10:25:29,967 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 65 transitions. Word has length 13 [2021-10-24 10:25:29,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:25:29,968 INFO L470 AbstractCegarLoop]: Abstraction has 59 states and 65 transitions. [2021-10-24 10:25:29,968 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:25:29,968 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 65 transitions. [2021-10-24 10:25:29,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-24 10:25:29,969 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:25:29,969 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:25:29,969 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-24 10:25:29,970 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 37 more)] === [2021-10-24 10:25:29,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:25:29,970 INFO L82 PathProgramCache]: Analyzing trace with hash 911481832, now seen corresponding path program 1 times [2021-10-24 10:25:29,970 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:25:29,971 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865170736] [2021-10-24 10:25:29,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:25:29,971 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:25:29,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:25:30,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:25:30,031 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:25:30,031 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865170736] [2021-10-24 10:25:30,032 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865170736] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:25:30,032 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:25:30,032 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-24 10:25:30,032 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458590731] [2021-10-24 10:25:30,033 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-24 10:25:30,033 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:25:30,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-24 10:25:30,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-24 10:25:30,034 INFO L87 Difference]: Start difference. First operand 59 states and 65 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:25:30,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:25:30,127 INFO L93 Difference]: Finished difference Result 70 states and 74 transitions. [2021-10-24 10:25:30,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-24 10:25:30,128 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-10-24 10:25:30,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:25:30,129 INFO L225 Difference]: With dead ends: 70 [2021-10-24 10:25:30,129 INFO L226 Difference]: Without dead ends: 70 [2021-10-24 10:25:30,135 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 35.9ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-24 10:25:30,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2021-10-24 10:25:30,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 58. [2021-10-24 10:25:30,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 41 states have (on average 1.5609756097560976) internal successors, (64), 57 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:25:30,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 64 transitions. [2021-10-24 10:25:30,141 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 64 transitions. Word has length 15 [2021-10-24 10:25:30,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:25:30,141 INFO L470 AbstractCegarLoop]: Abstraction has 58 states and 64 transitions. [2021-10-24 10:25:30,141 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:25:30,142 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 64 transitions. [2021-10-24 10:25:30,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-24 10:25:30,142 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:25:30,142 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:25:30,143 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-24 10:25:30,143 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 37 more)] === [2021-10-24 10:25:30,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:25:30,143 INFO L82 PathProgramCache]: Analyzing trace with hash 931591331, now seen corresponding path program 1 times [2021-10-24 10:25:30,144 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:25:30,144 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456809419] [2021-10-24 10:25:30,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:25:30,144 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:25:30,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:25:30,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:25:30,221 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:25:30,222 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456809419] [2021-10-24 10:25:30,222 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456809419] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:25:30,222 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:25:30,222 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-24 10:25:30,222 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164808711] [2021-10-24 10:25:30,223 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-24 10:25:30,223 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:25:30,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-24 10:25:30,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-24 10:25:30,224 INFO L87 Difference]: Start difference. First operand 58 states and 64 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:25:30,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:25:30,306 INFO L93 Difference]: Finished difference Result 53 states and 55 transitions. [2021-10-24 10:25:30,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 10:25:30,310 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-10-24 10:25:30,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:25:30,311 INFO L225 Difference]: With dead ends: 53 [2021-10-24 10:25:30,312 INFO L226 Difference]: Without dead ends: 53 [2021-10-24 10:25:30,312 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 28.4ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-24 10:25:30,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2021-10-24 10:25:30,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2021-10-24 10:25:30,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 36 states have (on average 1.5277777777777777) internal successors, (55), 52 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:25:30,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 55 transitions. [2021-10-24 10:25:30,314 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 55 transitions. Word has length 15 [2021-10-24 10:25:30,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:25:30,315 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 55 transitions. [2021-10-24 10:25:30,315 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:25:30,315 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 55 transitions. [2021-10-24 10:25:30,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-24 10:25:30,316 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:25:30,316 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:25:30,317 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-24 10:25:30,318 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 37 more)] === [2021-10-24 10:25:30,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:25:30,318 INFO L82 PathProgramCache]: Analyzing trace with hash -1808834183, now seen corresponding path program 1 times [2021-10-24 10:25:30,320 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:25:30,323 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043907681] [2021-10-24 10:25:30,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:25:30,327 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:25:30,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:25:30,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:25:30,430 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:25:30,431 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043907681] [2021-10-24 10:25:30,431 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043907681] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:25:30,431 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:25:30,431 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-24 10:25:30,431 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233072988] [2021-10-24 10:25:30,432 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-24 10:25:30,432 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:25:30,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-24 10:25:30,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-24 10:25:30,434 INFO L87 Difference]: Start difference. First operand 53 states and 55 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:25:30,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:25:30,522 INFO L93 Difference]: Finished difference Result 52 states and 54 transitions. [2021-10-24 10:25:30,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-24 10:25:30,523 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 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 16 [2021-10-24 10:25:30,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:25:30,524 INFO L225 Difference]: With dead ends: 52 [2021-10-24 10:25:30,524 INFO L226 Difference]: Without dead ends: 52 [2021-10-24 10:25:30,525 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 35.8ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-24 10:25:30,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-10-24 10:25:30,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2021-10-24 10:25:30,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 36 states have (on average 1.5) internal successors, (54), 51 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:25:30,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 54 transitions. [2021-10-24 10:25:30,527 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 54 transitions. Word has length 16 [2021-10-24 10:25:30,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:25:30,527 INFO L470 AbstractCegarLoop]: Abstraction has 52 states and 54 transitions. [2021-10-24 10:25:30,528 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:25:30,528 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 54 transitions. [2021-10-24 10:25:30,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-24 10:25:30,528 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:25:30,529 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:25:30,529 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-24 10:25:30,529 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 37 more)] === [2021-10-24 10:25:30,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:25:30,530 INFO L82 PathProgramCache]: Analyzing trace with hash 1794497945, now seen corresponding path program 1 times [2021-10-24 10:25:30,530 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:25:30,530 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051874450] [2021-10-24 10:25:30,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:25:30,530 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:25:30,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:25:30,681 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:25:30,682 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:25:30,682 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051874450] [2021-10-24 10:25:30,682 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051874450] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-24 10:25:30,682 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [300442061] [2021-10-24 10:25:30,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:25:30,682 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 10:25:30,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 10:25:30,683 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-24 10:25:30,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-24 10:25:30,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:25:30,759 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 30 conjunts are in the unsatisfiable core [2021-10-24 10:25:30,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:25:31,033 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-24 10:25:31,109 INFO L354 Elim1Store]: treesize reduction 30, result has 37.5 percent of original size [2021-10-24 10:25:31,110 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 29 [2021-10-24 10:25:31,231 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-24 10:25:31,234 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 24 [2021-10-24 10:25:31,358 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-10-24 10:25:31,358 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 21 [2021-10-24 10:25:31,400 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:25:31,400 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:25:31,555 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 40 [2021-10-24 10:25:31,789 INFO L354 Elim1Store]: treesize reduction 18, result has 28.0 percent of original size [2021-10-24 10:25:31,789 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 56 [2021-10-24 10:25:31,839 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:25:31,839 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [300442061] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-24 10:25:31,839 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [199281125] [2021-10-24 10:25:31,872 INFO L159 IcfgInterpreter]: Started Sifa with 12 locations of interest [2021-10-24 10:25:31,872 INFO L166 IcfgInterpreter]: Building call graph [2021-10-24 10:25:31,880 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-24 10:25:31,886 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-24 10:25:31,887 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-24 10:25:31,938 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:31,941 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:31,942 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:31,943 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-10-24 10:25:31,944 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:31,944 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:31,945 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-24 10:25:31,947 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 145 [2021-10-24 10:25:31,975 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_65|], 21=[|v_#valid_79|]} [2021-10-24 10:25:31,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:31,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:31,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:31,987 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-10-24 10:25:31,987 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:31,988 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-24 10:25:31,988 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:31,989 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-24 10:25:31,991 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-24 10:25:31,993 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:32,006 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:32,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:32,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:32,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:32,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:32,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:32,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:32,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:32,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:32,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:32,035 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 50 [2021-10-24 10:25:32,036 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:32,042 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-10-24 10:25:32,043 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:32,044 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-10-24 10:25:32,044 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-24 10:25:32,045 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:32,053 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:32,055 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:32,057 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 125 [2021-10-24 10:25:32,058 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-24 10:25:32,059 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:142, output treesize:125 [2021-10-24 10:25:32,067 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:32,073 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:32,073 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:32,074 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-10-24 10:25:32,075 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:32,076 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:32,077 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-10-24 10:25:32,080 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-10-24 10:25:32,085 INFO L446 ElimStorePlain]: Different costs {6=[|v_#length_66|], 15=[|v_#valid_80|]} [2021-10-24 10:25:32,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:32,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:32,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:32,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:32,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:32,107 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-10-24 10:25:32,108 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 30 [2021-10-24 10:25:32,109 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:32,116 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-24 10:25:32,117 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:32,117 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-24 10:25:32,118 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-24 10:25:32,118 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:32,136 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:32,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:32,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:32,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:32,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:32,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:32,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:32,153 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-10-24 10:25:32,154 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:32,158 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-10-24 10:25:32,159 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:32,160 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-10-24 10:25:32,160 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-24 10:25:32,161 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:32,174 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:32,183 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:32,190 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 157 [2021-10-24 10:25:32,192 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-24 10:25:32,192 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:164, output treesize:157 [2021-10-24 10:25:32,210 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.7 percent of original size [2021-10-24 10:25:32,212 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:32,213 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:32,213 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-10-24 10:25:32,214 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:32,215 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:32,215 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-10-24 10:25:32,216 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:32,217 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:32,217 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-10-24 10:25:32,227 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 230 [2021-10-24 10:25:32,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:32,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:32,246 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 23 [2021-10-24 10:25:32,247 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:32,248 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 10:25:32,249 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:32,249 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 10:25:32,249 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-24 10:25:32,250 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:32,262 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:32,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:32,275 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 18 [2021-10-24 10:25:32,275 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:32,276 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-10-24 10:25:32,277 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:32,277 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-10-24 10:25:32,278 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-24 10:25:32,278 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:32,290 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:32,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:32,302 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 18 [2021-10-24 10:25:32,302 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:32,303 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-10-24 10:25:32,304 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:32,305 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-10-24 10:25:32,305 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-10-24 10:25:32,305 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:32,316 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:32,319 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:32,321 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 197 [2021-10-24 10:25:32,322 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-24 10:25:32,323 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:224, output treesize:197 [2021-10-24 10:25:32,334 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.8 percent of original size [2021-10-24 10:25:32,336 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:32,336 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:32,337 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-10-24 10:25:32,338 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:32,339 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:32,339 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-10-24 10:25:32,343 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 254 [2021-10-24 10:25:32,350 INFO L446 ElimStorePlain]: Different costs {15=[|v_#length_67|], 28=[|v_#valid_81|]} [2021-10-24 10:25:32,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:32,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:32,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:32,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:32,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:32,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:32,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:32,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:32,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:32,377 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-10-24 10:25:32,378 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 14 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 48 [2021-10-24 10:25:32,379 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:32,381 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-10-24 10:25:32,382 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:32,401 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-10-24 10:25:32,402 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-24 10:25:32,402 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:32,417 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:32,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:32,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:32,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:32,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:32,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:32,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:32,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:32,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:32,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:32,454 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-10-24 10:25:32,455 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 14 disjoint index pairs (out of 21 index pairs), introduced 6 new quantified variables, introduced 2 case distinctions, treesize of input 42 treesize of output 53 [2021-10-24 10:25:32,458 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:32,461 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-10-24 10:25:32,462 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:32,462 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-10-24 10:25:32,463 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-24 10:25:32,464 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:32,480 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:32,485 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.7 percent of original size [2021-10-24 10:25:32,488 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 235 [2021-10-24 10:25:32,489 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-24 10:25:32,490 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:250, output treesize:235 [2021-10-24 10:25:32,500 INFO L180 QuantifierPusher]: treesize reduction 5, result has 98.3 percent of original size [2021-10-24 10:25:32,502 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:32,503 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:32,503 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-10-24 10:25:32,507 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:32,508 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:32,509 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:32,509 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:32,510 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-10-24 10:25:32,510 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-10-24 10:25:32,511 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:32,511 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:32,513 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:32,513 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:32,514 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-10-24 10:25:32,515 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-10-24 10:25:32,515 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:32,516 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:32,516 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-10-24 10:25:32,517 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:32,517 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:32,518 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-10-24 10:25:32,522 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 264 [2021-10-24 10:25:32,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:32,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:32,541 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2021-10-24 10:25:32,541 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:32,542 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 10:25:32,543 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:32,543 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 10:25:32,544 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-24 10:25:32,544 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:32,556 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:32,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:32,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:32,570 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 30 [2021-10-24 10:25:32,571 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:32,572 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-10-24 10:25:32,572 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:32,573 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-10-24 10:25:32,573 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-24 10:25:32,574 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:32,585 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:32,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:32,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:32,598 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-10-24 10:25:32,598 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:32,600 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-10-24 10:25:32,600 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:32,601 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-10-24 10:25:32,601 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-10-24 10:25:32,602 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:32,613 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:32,617 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:32,621 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 252 [2021-10-24 10:25:32,622 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-24 10:25:32,622 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:258, output treesize:252 [2021-10-24 10:25:32,627 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:32,628 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:32,629 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:32,630 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-10-24 10:25:32,630 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:32,631 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:32,631 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-10-24 10:25:32,632 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:32,633 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:32,633 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-10-24 10:25:32,638 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 308 [2021-10-24 10:25:32,646 INFO L446 ElimStorePlain]: Different costs {6=[|v_#memory_int_32|], 12=[|v_#memory_$Pointer$.base_52|, |v_#memory_$Pointer$.offset_50|]} [2021-10-24 10:25:32,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:32,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:32,660 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 23 [2021-10-24 10:25:32,663 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:32,665 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 10:25:32,665 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:32,666 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 10:25:32,666 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-24 10:25:32,667 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:32,680 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:32,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:32,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:32,701 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 51 [2021-10-24 10:25:32,702 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:32,704 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-10-24 10:25:32,706 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:32,707 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-10-24 10:25:32,707 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-24 10:25:32,708 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:32,720 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:32,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:32,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:32,734 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 33 [2021-10-24 10:25:32,735 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:32,740 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-10-24 10:25:32,740 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:32,741 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-10-24 10:25:32,741 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-10-24 10:25:32,742 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:32,754 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:32,762 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:32,766 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 261 [2021-10-24 10:25:32,767 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-24 10:25:32,767 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:302, output treesize:261 [2021-10-24 10:25:32,772 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:32,779 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 253 [2021-10-24 10:25:32,785 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:32,795 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:32,796 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:32,796 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-10-24 10:25:32,797 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:32,798 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:32,799 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-10-24 10:25:32,803 INFO L185 QuantifierPusher]: treesize reduction 3, result has 99.0 percent of original size 299 [2021-10-24 10:25:32,832 INFO L446 ElimStorePlain]: Different costs {15=[|v_#length_68|], 28=[|v_#valid_82|]} [2021-10-24 10:25:32,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:32,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:32,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:32,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:32,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:32,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:32,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:32,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:32,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:32,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:32,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:32,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:32,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:32,864 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-10-24 10:25:32,864 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 20 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 63 [2021-10-24 10:25:32,865 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:32,868 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-10-24 10:25:32,869 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:32,870 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-10-24 10:25:32,870 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-24 10:25:32,871 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:32,892 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:32,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:32,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:32,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:32,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:32,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:32,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:32,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:32,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:32,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:32,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:32,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:32,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:32,950 INFO L354 Elim1Store]: treesize reduction 72, result has 37.4 percent of original size [2021-10-24 10:25:32,950 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 19 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 4 case distinctions, treesize of input 54 treesize of output 89 [2021-10-24 10:25:32,951 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:32,955 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-10-24 10:25:32,956 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:32,957 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-10-24 10:25:32,957 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-24 10:25:32,958 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:32,970 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:32,974 INFO L180 QuantifierPusher]: treesize reduction 3, result has 99.0 percent of original size [2021-10-24 10:25:32,978 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 308 [2021-10-24 10:25:32,979 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-24 10:25:32,979 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:298, output treesize:308 [2021-10-24 10:25:32,987 INFO L180 QuantifierPusher]: treesize reduction 3, result has 99.2 percent of original size [2021-10-24 10:25:32,993 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:32,993 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:32,994 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:32,995 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:32,996 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-10-24 10:25:32,996 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-10-24 10:25:32,996 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:32,997 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:32,998 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:32,999 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:33,000 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 167 [2021-10-24 10:25:33,001 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-10-24 10:25:33,003 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:33,004 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:33,005 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 189 [2021-10-24 10:25:33,007 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:33,007 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:33,008 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-10-24 10:25:33,012 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 379 [2021-10-24 10:25:33,016 INFO L446 ElimStorePlain]: Different costs {6=[|v_#memory_int_33|], 18=[|v_#memory_$Pointer$.offset_51|, |v_#memory_$Pointer$.base_53|]} [2021-10-24 10:25:33,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:33,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:33,032 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 23 [2021-10-24 10:25:33,033 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:33,034 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 10:25:33,035 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:33,036 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 10:25:33,036 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-24 10:25:33,037 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:33,051 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:33,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:33,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:33,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:33,069 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 46 [2021-10-24 10:25:33,070 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:33,072 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-10-24 10:25:33,072 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:33,073 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-10-24 10:25:33,073 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-24 10:25:33,074 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:33,088 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:33,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:33,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:33,116 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-24 10:25:33,116 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 167 treesize of output 95 [2021-10-24 10:25:33,118 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:33,120 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 163 [2021-10-24 10:25:33,121 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:33,122 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 163 [2021-10-24 10:25:33,123 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-10-24 10:25:33,123 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:33,138 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:33,142 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:33,147 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 348 [2021-10-24 10:25:33,148 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-24 10:25:33,148 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:375, output treesize:348 [2021-10-24 10:25:33,156 INFO L180 QuantifierPusher]: treesize reduction 3, result has 99.3 percent of original size [2021-10-24 10:25:33,158 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:33,159 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:33,159 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-10-24 10:25:33,160 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:33,161 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:33,162 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-10-24 10:25:33,168 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 405 [2021-10-24 10:25:33,174 INFO L446 ElimStorePlain]: Different costs {28=[|v_#length_69|], 45=[|v_#valid_83|]} [2021-10-24 10:25:33,185 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-24 10:25:33,186 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:33,186 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-24 10:25:33,187 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:33,187 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-24 10:25:33,188 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-24 10:25:33,188 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:33,188 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:33,189 INFO L518 ElimStorePlain]: Eliminatee |v_#valid_83| vanished before elimination [2021-10-24 10:25:33,189 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:33,189 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-24 10:25:33,190 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-24 10:25:33,190 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:401, output treesize:1 [2021-10-24 10:25:33,198 INFO L180 QuantifierPusher]: treesize reduction 5, result has 98.3 percent of original size [2021-10-24 10:25:33,200 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:33,201 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:33,201 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-10-24 10:25:33,205 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:33,206 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:33,206 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:33,207 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:33,207 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-10-24 10:25:33,208 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-10-24 10:25:33,208 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:33,208 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:33,209 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:33,210 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:33,211 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-10-24 10:25:33,211 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-10-24 10:25:33,212 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:33,212 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:33,213 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-10-24 10:25:33,213 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:33,214 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:33,217 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-10-24 10:25:33,221 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 264 [2021-10-24 10:25:33,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:33,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:33,241 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 30 [2021-10-24 10:25:33,242 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:33,243 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-10-24 10:25:33,243 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:33,244 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-10-24 10:25:33,244 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-24 10:25:33,244 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:33,269 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:33,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:33,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:33,283 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-10-24 10:25:33,283 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:33,285 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-10-24 10:25:33,286 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:33,286 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-10-24 10:25:33,287 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-24 10:25:33,287 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:33,298 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:33,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:33,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:33,311 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2021-10-24 10:25:33,312 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:33,313 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 10:25:33,314 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:33,314 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 10:25:33,314 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-10-24 10:25:33,315 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:33,326 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:33,329 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:33,333 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 252 [2021-10-24 10:25:33,334 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-24 10:25:33,334 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:258, output treesize:252 [2021-10-24 10:25:33,341 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:33,344 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:33,344 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:33,345 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-10-24 10:25:33,346 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:33,346 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:33,347 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-10-24 10:25:33,347 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:33,348 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:33,348 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-10-24 10:25:33,353 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 308 [2021-10-24 10:25:33,356 INFO L446 ElimStorePlain]: Different costs {6=[|v_#memory_int_35|], 12=[|v_#memory_$Pointer$.base_55|, |v_#memory_$Pointer$.offset_53|]} [2021-10-24 10:25:33,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:33,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:33,370 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 23 [2021-10-24 10:25:33,370 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:33,372 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 10:25:33,373 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:33,381 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 10:25:33,382 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-24 10:25:33,382 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:33,395 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:33,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:33,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:33,408 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 51 [2021-10-24 10:25:33,409 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:33,416 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-10-24 10:25:33,417 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:33,418 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-10-24 10:25:33,418 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-24 10:25:33,418 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:33,430 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:33,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:33,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:33,444 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 33 [2021-10-24 10:25:33,445 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:33,447 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-10-24 10:25:33,447 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:33,448 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-10-24 10:25:33,448 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-10-24 10:25:33,448 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:33,460 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:33,463 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:33,467 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 261 [2021-10-24 10:25:33,468 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-24 10:25:33,468 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:302, output treesize:261 [2021-10-24 10:25:33,475 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:33,480 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 253 [2021-10-24 10:25:33,486 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:33,506 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:33,531 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:33,535 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:33,563 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:33,573 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:33,573 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:33,574 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-10-24 10:25:33,575 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:33,575 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:33,576 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-10-24 10:25:33,580 INFO L185 QuantifierPusher]: treesize reduction 3, result has 99.2 percent of original size 358 [2021-10-24 10:25:33,583 INFO L446 ElimStorePlain]: Different costs {15=[|v_#length_70|], 28=[|v_#valid_84|]} [2021-10-24 10:25:33,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:33,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:33,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:33,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:33,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:33,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:33,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:33,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:33,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:33,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:33,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:33,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:33,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:33,614 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-10-24 10:25:33,615 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 20 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 72 treesize of output 78 [2021-10-24 10:25:33,615 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:33,618 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-10-24 10:25:33,619 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:33,619 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-10-24 10:25:33,619 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-24 10:25:33,620 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:33,630 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:33,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:33,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:33,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:33,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:33,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:33,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:33,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:33,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:33,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:33,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:33,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:33,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:33,704 INFO L354 Elim1Store]: treesize reduction 90, result has 37.9 percent of original size [2021-10-24 10:25:33,704 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 19 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 4 case distinctions, treesize of input 60 treesize of output 101 [2021-10-24 10:25:33,705 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:33,715 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-10-24 10:25:33,716 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:33,717 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-10-24 10:25:33,717 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-24 10:25:33,718 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:33,730 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:33,735 INFO L180 QuantifierPusher]: treesize reduction 6, result has 98.4 percent of original size [2021-10-24 10:25:33,739 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 366 [2021-10-24 10:25:33,740 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-24 10:25:33,740 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:357, output treesize:366 [2021-10-24 10:25:33,744 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:33,773 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:33,809 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:33,813 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:33,848 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:33,872 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:33,899 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:33,902 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:33,943 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:33,955 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:33,960 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:33,967 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:33,972 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:33,973 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:33,974 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:33,975 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 198 [2021-10-24 10:25:33,976 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:33,977 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:33,977 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-10-24 10:25:33,983 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 550 [2021-10-24 10:25:33,984 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:33,989 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:33,994 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 532 [2021-10-24 10:25:33,999 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 533 [2021-10-24 10:25:34,000 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:34,006 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:34,011 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:34,017 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:34,019 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:34,019 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:34,020 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-10-24 10:25:34,026 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 550 [2021-10-24 10:25:34,028 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:34,033 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:34,038 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 532 [2021-10-24 10:25:34,044 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 533 [2021-10-24 10:25:34,044 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:34,050 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:34,058 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:34,090 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:34,091 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:34,092 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:34,093 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 224 [2021-10-24 10:25:34,094 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:34,095 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:34,095 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-10-24 10:25:34,101 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 550 [2021-10-24 10:25:34,102 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:34,108 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:34,114 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 532 [2021-10-24 10:25:34,120 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 533 [2021-10-24 10:25:34,129 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:34,136 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:34,139 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:34,139 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:34,140 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-10-24 10:25:34,140 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:34,141 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:34,141 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-10-24 10:25:34,142 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:34,142 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:34,143 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-10-24 10:25:34,146 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:34,147 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:34,148 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:34,149 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:34,150 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 198 [2021-10-24 10:25:34,154 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 199 [2021-10-24 10:25:34,155 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:34,156 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:34,157 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:34,158 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:34,159 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 224 [2021-10-24 10:25:34,160 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 225 [2021-10-24 10:25:34,160 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:34,161 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:34,162 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 246 [2021-10-24 10:25:34,169 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 616 [2021-10-24 10:25:34,170 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:34,175 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:34,182 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 562 [2021-10-24 10:25:34,189 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 654 [2021-10-24 10:25:34,196 INFO L446 ElimStorePlain]: Different costs {6=[|v_#memory_int_36|], 20=[|v_#memory_$Pointer$.offset_54|, |v_#memory_$Pointer$.base_56|]} [2021-10-24 10:25:34,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:34,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:34,219 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 23 [2021-10-24 10:25:34,220 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:34,221 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 10:25:34,221 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:34,222 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 10:25:34,222 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-24 10:25:34,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:34,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:34,243 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 23 [2021-10-24 10:25:34,244 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:34,245 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 10:25:34,245 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:34,246 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 10:25:34,246 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-24 10:25:34,247 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:34,288 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:34,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:34,303 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-24 10:25:34,305 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 18 [2021-10-24 10:25:34,306 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:34,307 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-10-24 10:25:34,307 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:34,308 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-10-24 10:25:34,308 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-10-24 10:25:34,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:34,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:34,335 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-10-24 10:25:34,335 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 198 treesize of output 165 [2021-10-24 10:25:34,336 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:34,338 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 134 [2021-10-24 10:25:34,340 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:34,340 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 134 [2021-10-24 10:25:34,341 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-10-24 10:25:34,341 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:34,382 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:34,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:34,398 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-24 10:25:34,399 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 18 [2021-10-24 10:25:34,400 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:34,400 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-10-24 10:25:34,402 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:34,403 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-10-24 10:25:34,403 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-10-24 10:25:34,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:34,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:34,431 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-24 10:25:34,432 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 168 treesize of output 96 [2021-10-24 10:25:34,433 INFO L180 QuantifierPusher]: treesize reduction 5, result has 94.8 percent of original size [2021-10-24 10:25:34,436 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 155 [2021-10-24 10:25:34,437 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:34,438 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 155 [2021-10-24 10:25:34,438 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-10-24 10:25:34,439 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:34,479 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:34,536 INFO L180 QuantifierPusher]: treesize reduction 78, result has 88.1 percent of original size [2021-10-24 10:25:34,547 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 579 [2021-10-24 10:25:34,549 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-10-24 10:25:34,549 INFO L247 ElimStorePlain]: Needed 7 recursive calls to eliminate 3 variables, input treesize:776, output treesize:579 [2021-10-24 10:25:34,557 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:34,597 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:34,598 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:34,600 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:34,601 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:34,609 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:34,612 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:34,616 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:34,653 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:34,654 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:34,656 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:34,657 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:34,658 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:34,661 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:34,666 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:34,680 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:34,698 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:34,700 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:34,716 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-24 10:25:38,671 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-24 10:25:38,672 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-10-24 10:25:38,672 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 20 [2021-10-24 10:25:38,672 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554242543] [2021-10-24 10:25:38,673 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-24 10:25:38,673 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:25:38,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-24 10:25:38,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=847, Unknown=0, NotChecked=0, Total=992 [2021-10-24 10:25:38,674 INFO L87 Difference]: Start difference. First operand 52 states and 54 transitions. Second operand has 21 states, 20 states have (on average 1.9) internal successors, (38), 21 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:25:39,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:25:39,169 INFO L93 Difference]: Finished difference Result 65 states and 68 transitions. [2021-10-24 10:25:39,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-24 10:25:39,169 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 1.9) internal successors, (38), 21 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-10-24 10:25:39,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:25:39,170 INFO L225 Difference]: With dead ends: 65 [2021-10-24 10:25:39,170 INFO L226 Difference]: Without dead ends: 65 [2021-10-24 10:25:39,171 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 332 ImplicationChecksByTransitivity, 4472.6ms TimeCoverageRelationStatistics Valid=261, Invalid=1221, Unknown=0, NotChecked=0, Total=1482 [2021-10-24 10:25:39,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2021-10-24 10:25:39,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 51. [2021-10-24 10:25:39,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 36 states have (on average 1.4722222222222223) internal successors, (53), 50 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:25:39,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 53 transitions. [2021-10-24 10:25:39,172 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 53 transitions. Word has length 16 [2021-10-24 10:25:39,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:25:39,173 INFO L470 AbstractCegarLoop]: Abstraction has 51 states and 53 transitions. [2021-10-24 10:25:39,173 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 1.9) internal successors, (38), 21 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:25:39,173 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 53 transitions. [2021-10-24 10:25:39,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-24 10:25:39,173 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:25:39,174 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:25:39,201 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-10-24 10:25:39,386 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-10-24 10:25:39,387 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 37 more)] === [2021-10-24 10:25:39,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:25:39,387 INFO L82 PathProgramCache]: Analyzing trace with hash 1794497946, now seen corresponding path program 1 times [2021-10-24 10:25:39,387 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:25:39,388 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52476553] [2021-10-24 10:25:39,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:25:39,388 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:25:39,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:25:39,520 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:25:39,520 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:25:39,520 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52476553] [2021-10-24 10:25:39,520 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52476553] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-24 10:25:39,520 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [609210881] [2021-10-24 10:25:39,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:25:39,521 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 10:25:39,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 10:25:39,522 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-24 10:25:39,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-24 10:25:39,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:25:39,636 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 41 conjunts are in the unsatisfiable core [2021-10-24 10:25:39,640 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:25:39,779 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2021-10-24 10:25:39,784 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-10-24 10:25:39,836 INFO L354 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2021-10-24 10:25:39,836 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2021-10-24 10:25:39,842 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2021-10-24 10:25:39,946 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-24 10:25:39,947 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 55 treesize of output 46 [2021-10-24 10:25:39,957 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-24 10:25:39,958 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 46 [2021-10-24 10:25:40,095 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-10-24 10:25:40,095 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 66 treesize of output 50 [2021-10-24 10:25:40,100 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-10-24 10:25:40,101 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 24 [2021-10-24 10:25:40,132 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:25:40,133 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:25:40,365 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 87 [2021-10-24 10:25:40,369 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 142 treesize of output 130 [2021-10-24 10:25:40,475 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 48 [2021-10-24 10:25:40,482 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-10-24 10:25:40,482 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 47 [2021-10-24 10:25:40,578 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:25:40,578 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [609210881] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-24 10:25:40,578 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1975230673] [2021-10-24 10:25:40,580 INFO L159 IcfgInterpreter]: Started Sifa with 12 locations of interest [2021-10-24 10:25:40,581 INFO L166 IcfgInterpreter]: Building call graph [2021-10-24 10:25:40,581 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-24 10:25:40,581 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-24 10:25:40,581 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-24 10:25:40,592 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:40,593 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:40,594 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:40,594 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-10-24 10:25:40,595 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:40,595 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:40,596 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-24 10:25:40,599 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 145 [2021-10-24 10:25:40,601 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_75|], 21=[|v_#valid_89|]} [2021-10-24 10:25:40,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:40,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:40,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:40,610 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-10-24 10:25:40,611 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:40,611 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-24 10:25:40,612 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:40,612 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-24 10:25:40,613 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-24 10:25:40,613 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:40,616 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:40,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:40,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:40,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:40,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:40,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:40,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:40,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:40,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:40,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:40,632 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 50 [2021-10-24 10:25:40,633 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:40,635 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-10-24 10:25:40,635 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:40,636 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-10-24 10:25:40,636 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-24 10:25:40,636 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:40,640 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:40,642 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:40,643 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 125 [2021-10-24 10:25:40,644 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-24 10:25:40,644 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:142, output treesize:125 [2021-10-24 10:25:40,649 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:40,650 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:40,650 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:40,651 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-10-24 10:25:40,651 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:40,652 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:40,652 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-10-24 10:25:40,654 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-10-24 10:25:40,658 INFO L446 ElimStorePlain]: Different costs {6=[|v_#length_76|], 15=[|v_#valid_90|]} [2021-10-24 10:25:40,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:40,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:40,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:40,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:40,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:40,675 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-10-24 10:25:40,675 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 30 [2021-10-24 10:25:40,676 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:40,677 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-24 10:25:40,677 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:40,678 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-24 10:25:40,678 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-24 10:25:40,678 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:40,684 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:40,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:40,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:40,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:40,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:40,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:40,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:40,697 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-10-24 10:25:40,698 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:40,700 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-10-24 10:25:40,701 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:40,701 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-10-24 10:25:40,701 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-24 10:25:40,702 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:40,707 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:40,710 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:40,712 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 157 [2021-10-24 10:25:40,713 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-24 10:25:40,714 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:164, output treesize:157 [2021-10-24 10:25:40,721 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.7 percent of original size [2021-10-24 10:25:40,727 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:40,727 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:40,728 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-10-24 10:25:40,728 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:40,728 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:40,729 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-10-24 10:25:40,730 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:40,730 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:40,730 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-10-24 10:25:40,734 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 230 [2021-10-24 10:25:40,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:40,747 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 18 [2021-10-24 10:25:40,748 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:40,749 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-10-24 10:25:40,749 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:40,749 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-10-24 10:25:40,750 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-24 10:25:40,750 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:40,757 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:40,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:40,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:40,768 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 23 [2021-10-24 10:25:40,768 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:40,770 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 10:25:40,771 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:40,771 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 10:25:40,772 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-24 10:25:40,773 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:40,780 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:40,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:40,789 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 18 [2021-10-24 10:25:40,790 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:40,791 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-10-24 10:25:40,791 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:40,791 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-10-24 10:25:40,792 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-10-24 10:25:40,792 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:40,799 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:40,802 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:40,806 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 201 [2021-10-24 10:25:40,806 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-24 10:25:40,807 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:224, output treesize:201 [2021-10-24 10:25:40,818 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.8 percent of original size [2021-10-24 10:25:40,819 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:40,820 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:40,820 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-10-24 10:25:40,821 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:40,821 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:40,822 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-10-24 10:25:40,826 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 258 [2021-10-24 10:25:40,830 INFO L446 ElimStorePlain]: Different costs {15=[|v_#length_77|], 28=[|v_#valid_91|]} [2021-10-24 10:25:40,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:40,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:40,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:40,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:40,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:40,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:40,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:40,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:40,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:40,858 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-10-24 10:25:40,859 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 14 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 48 [2021-10-24 10:25:40,859 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:40,861 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-10-24 10:25:40,861 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:40,862 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-10-24 10:25:40,862 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-24 10:25:40,863 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:40,873 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:40,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:40,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:40,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:40,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:40,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:40,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:40,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:40,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:40,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:40,905 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-10-24 10:25:40,905 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 14 disjoint index pairs (out of 21 index pairs), introduced 6 new quantified variables, introduced 2 case distinctions, treesize of input 42 treesize of output 53 [2021-10-24 10:25:40,906 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:40,908 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-10-24 10:25:40,909 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:40,909 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-10-24 10:25:40,910 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-24 10:25:40,910 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:40,921 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:40,926 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.7 percent of original size [2021-10-24 10:25:40,931 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 235 [2021-10-24 10:25:40,932 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-24 10:25:40,932 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:254, output treesize:235 [2021-10-24 10:25:40,940 INFO L180 QuantifierPusher]: treesize reduction 5, result has 98.3 percent of original size [2021-10-24 10:25:40,941 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:40,942 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:40,942 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-10-24 10:25:40,953 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:40,962 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:40,963 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:40,964 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:40,964 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-10-24 10:25:40,965 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-10-24 10:25:40,965 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:40,965 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:40,966 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:40,967 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:40,967 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-10-24 10:25:40,968 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-10-24 10:25:40,968 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:40,969 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:40,969 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-10-24 10:25:40,970 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:40,970 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:40,971 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-10-24 10:25:40,991 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 264 [2021-10-24 10:25:41,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:41,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:41,008 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 30 [2021-10-24 10:25:41,008 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,009 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-10-24 10:25:41,010 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,010 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-10-24 10:25:41,010 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-24 10:25:41,011 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:41,020 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:41,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:41,033 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 30 [2021-10-24 10:25:41,034 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,034 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-10-24 10:25:41,035 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,036 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-10-24 10:25:41,036 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-24 10:25:41,037 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:41,046 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:41,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:41,056 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2021-10-24 10:25:41,057 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,058 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 10:25:41,059 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,059 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 10:25:41,059 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-10-24 10:25:41,060 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:41,069 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,071 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,075 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 248 [2021-10-24 10:25:41,076 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-24 10:25:41,076 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:258, output treesize:248 [2021-10-24 10:25:41,084 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,085 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:41,086 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,087 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-10-24 10:25:41,087 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:41,088 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,088 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-10-24 10:25:41,089 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:41,089 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,090 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-10-24 10:25:41,094 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 311 [2021-10-24 10:25:41,098 INFO L446 ElimStorePlain]: Different costs {6=[|v_#memory_int_43|], 12=[|v_#memory_$Pointer$.base_65|, |v_#memory_$Pointer$.offset_63|]} [2021-10-24 10:25:41,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:41,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:41,112 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 23 [2021-10-24 10:25:41,112 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,113 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 10:25:41,114 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,114 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 10:25:41,114 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-24 10:25:41,115 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:41,125 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:41,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:41,137 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 51 [2021-10-24 10:25:41,137 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,139 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-10-24 10:25:41,139 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,140 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-10-24 10:25:41,140 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-24 10:25:41,141 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:41,151 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:41,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:41,163 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 33 [2021-10-24 10:25:41,164 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,165 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-10-24 10:25:41,166 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,166 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-10-24 10:25:41,167 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-10-24 10:25:41,167 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:41,177 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,182 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,186 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 264 [2021-10-24 10:25:41,187 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-24 10:25:41,188 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:305, output treesize:264 [2021-10-24 10:25:41,193 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,199 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 256 [2021-10-24 10:25:41,206 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,216 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:41,217 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,217 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-10-24 10:25:41,218 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:41,218 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,219 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-10-24 10:25:41,223 INFO L185 QuantifierPusher]: treesize reduction 6, result has 98.0 percent of original size 299 [2021-10-24 10:25:41,226 INFO L446 ElimStorePlain]: Different costs {15=[|v_#length_78|], 28=[|v_#valid_92|]} [2021-10-24 10:25:41,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:41,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:41,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:41,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:41,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:41,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:41,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:41,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:41,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:41,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:41,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:41,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:41,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:41,253 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-10-24 10:25:41,253 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 20 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 63 [2021-10-24 10:25:41,254 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,256 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-10-24 10:25:41,257 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,257 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-10-24 10:25:41,258 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-24 10:25:41,258 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:41,268 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:41,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:41,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:41,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:41,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:41,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:41,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:41,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:41,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:41,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:41,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:41,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:41,315 INFO L354 Elim1Store]: treesize reduction 72, result has 37.4 percent of original size [2021-10-24 10:25:41,316 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 19 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 4 case distinctions, treesize of input 54 treesize of output 89 [2021-10-24 10:25:41,316 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,321 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-10-24 10:25:41,322 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,323 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-10-24 10:25:41,326 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-24 10:25:41,328 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:41,342 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,353 INFO L180 QuantifierPusher]: treesize reduction 6, result has 98.1 percent of original size [2021-10-24 10:25:41,357 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 308 [2021-10-24 10:25:41,357 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-24 10:25:41,367 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:301, output treesize:308 [2021-10-24 10:25:41,373 INFO L180 QuantifierPusher]: treesize reduction 3, result has 99.2 percent of original size [2021-10-24 10:25:41,374 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:41,375 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,375 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-10-24 10:25:41,381 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:41,381 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,382 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:41,382 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,383 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-10-24 10:25:41,383 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-10-24 10:25:41,384 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:41,384 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,385 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:41,386 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,387 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 167 [2021-10-24 10:25:41,388 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-10-24 10:25:41,388 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:41,389 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,390 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 189 [2021-10-24 10:25:41,393 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 379 [2021-10-24 10:25:41,397 INFO L446 ElimStorePlain]: Different costs {6=[|v_#memory_int_44|], 18=[|v_#memory_$Pointer$.offset_64|, |v_#memory_$Pointer$.base_66|]} [2021-10-24 10:25:41,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:41,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:41,411 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 23 [2021-10-24 10:25:41,411 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,412 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 10:25:41,413 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,413 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 10:25:41,413 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-24 10:25:41,414 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:41,427 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:41,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:41,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:41,444 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 46 [2021-10-24 10:25:41,445 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,446 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-10-24 10:25:41,447 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,447 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-10-24 10:25:41,448 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-24 10:25:41,449 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:41,462 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:41,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:41,485 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-24 10:25:41,485 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 167 treesize of output 95 [2021-10-24 10:25:41,486 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,488 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 163 [2021-10-24 10:25:41,489 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,490 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 163 [2021-10-24 10:25:41,490 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-10-24 10:25:41,491 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:41,504 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,507 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,511 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 352 [2021-10-24 10:25:41,512 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-24 10:25:41,512 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:375, output treesize:352 [2021-10-24 10:25:41,520 INFO L180 QuantifierPusher]: treesize reduction 3, result has 99.3 percent of original size [2021-10-24 10:25:41,521 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:41,522 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,523 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-10-24 10:25:41,523 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:41,524 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,525 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-10-24 10:25:41,529 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 409 [2021-10-24 10:25:41,532 INFO L446 ElimStorePlain]: Different costs {28=[|v_#length_79|], 45=[|v_#valid_93|]} [2021-10-24 10:25:41,566 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-24 10:25:41,567 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,567 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-24 10:25:41,568 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,568 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-24 10:25:41,569 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-24 10:25:41,569 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:41,570 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,570 INFO L518 ElimStorePlain]: Eliminatee |v_#valid_93| vanished before elimination [2021-10-24 10:25:41,570 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,571 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-24 10:25:41,571 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-24 10:25:41,571 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:405, output treesize:1 [2021-10-24 10:25:41,579 INFO L180 QuantifierPusher]: treesize reduction 5, result has 98.3 percent of original size [2021-10-24 10:25:41,581 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:41,581 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,582 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-10-24 10:25:41,583 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:41,583 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,584 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-10-24 10:25:41,588 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:41,588 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,589 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:41,589 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,590 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-10-24 10:25:41,590 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-10-24 10:25:41,591 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:41,591 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,592 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:41,593 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,593 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-10-24 10:25:41,594 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-10-24 10:25:41,595 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:41,595 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,596 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-10-24 10:25:41,600 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 264 [2021-10-24 10:25:41,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:41,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:41,617 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 30 [2021-10-24 10:25:41,618 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,619 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-10-24 10:25:41,619 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,620 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-10-24 10:25:41,620 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-24 10:25:41,621 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:41,633 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:41,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:41,645 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2021-10-24 10:25:41,646 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,647 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 10:25:41,647 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,648 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 10:25:41,648 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-24 10:25:41,648 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:41,660 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:41,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:41,671 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 30 [2021-10-24 10:25:41,672 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,673 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-10-24 10:25:41,674 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,674 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-10-24 10:25:41,674 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-10-24 10:25:41,675 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:41,687 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,690 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,694 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 244 [2021-10-24 10:25:41,695 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-24 10:25:41,695 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:258, output treesize:244 [2021-10-24 10:25:41,702 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,703 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:41,704 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,704 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-10-24 10:25:41,705 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:41,706 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,706 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-10-24 10:25:41,707 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:41,707 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,708 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-10-24 10:25:41,712 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 307 [2021-10-24 10:25:41,715 INFO L446 ElimStorePlain]: Different costs {6=[|v_#memory_int_46|], 12=[|v_#memory_$Pointer$.offset_66|, |v_#memory_$Pointer$.base_68|]} [2021-10-24 10:25:41,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:41,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:41,729 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 23 [2021-10-24 10:25:41,729 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,731 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 10:25:41,731 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,731 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 10:25:41,732 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-24 10:25:41,732 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:41,746 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:41,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:41,760 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 33 [2021-10-24 10:25:41,760 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,762 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-10-24 10:25:41,762 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,763 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-10-24 10:25:41,763 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-24 10:25:41,764 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:41,776 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:41,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:41,786 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 51 [2021-10-24 10:25:41,787 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,789 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-10-24 10:25:41,789 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,790 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-10-24 10:25:41,790 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-10-24 10:25:41,790 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:41,801 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,804 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,807 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 264 [2021-10-24 10:25:41,808 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-24 10:25:41,808 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:301, output treesize:264 [2021-10-24 10:25:41,815 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,819 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 256 [2021-10-24 10:25:41,823 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:41,839 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:41,857 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:41,860 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:41,890 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,896 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:41,897 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,897 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-10-24 10:25:41,898 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:41,899 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,899 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-10-24 10:25:41,903 INFO L185 QuantifierPusher]: treesize reduction 6, result has 98.4 percent of original size 358 [2021-10-24 10:25:41,906 INFO L446 ElimStorePlain]: Different costs {15=[|v_#length_80|], 28=[|v_#valid_94|]} [2021-10-24 10:25:41,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:41,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:41,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:41,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:41,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:41,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:41,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:41,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:41,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:41,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:41,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:41,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:41,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:41,934 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-10-24 10:25:41,935 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 20 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 72 treesize of output 78 [2021-10-24 10:25:41,936 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,938 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-10-24 10:25:41,938 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,939 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-10-24 10:25:41,939 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-24 10:25:41,940 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:41,950 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:41,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:41,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:41,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:41,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:41,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:41,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:41,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:41,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:41,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:41,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:41,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:41,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:42,005 INFO L354 Elim1Store]: treesize reduction 90, result has 37.9 percent of original size [2021-10-24 10:25:42,005 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 19 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 4 case distinctions, treesize of input 60 treesize of output 101 [2021-10-24 10:25:42,006 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:42,009 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-10-24 10:25:42,010 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:42,010 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-10-24 10:25:42,011 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-24 10:25:42,011 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:42,022 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:42,027 INFO L180 QuantifierPusher]: treesize reduction 13, result has 96.4 percent of original size [2021-10-24 10:25:42,030 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 351 [2021-10-24 10:25:42,030 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-24 10:25:42,031 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:360, output treesize:351 [2021-10-24 10:25:42,034 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:42,054 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:42,074 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:42,077 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:42,118 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:42,138 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:42,171 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:42,175 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:42,223 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:42,231 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:42,236 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:42,242 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:42,247 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:42,248 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:42,249 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:42,249 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-10-24 10:25:42,256 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 535 [2021-10-24 10:25:42,256 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:42,262 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:42,267 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 517 [2021-10-24 10:25:42,273 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 518 [2021-10-24 10:25:42,274 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:42,279 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:42,285 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:42,290 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:42,291 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:42,292 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:42,292 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-10-24 10:25:42,293 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:42,294 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:42,295 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 183 [2021-10-24 10:25:42,300 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 535 [2021-10-24 10:25:42,301 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:42,306 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:42,312 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 517 [2021-10-24 10:25:42,318 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 518 [2021-10-24 10:25:42,318 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:42,323 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:42,329 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:42,335 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:42,336 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:42,337 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:42,338 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 209 [2021-10-24 10:25:42,338 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:42,339 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:42,339 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-10-24 10:25:42,344 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 535 [2021-10-24 10:25:42,345 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:42,350 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:42,355 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 517 [2021-10-24 10:25:42,361 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 518 [2021-10-24 10:25:42,368 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:42,374 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:42,375 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:42,375 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:42,376 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-10-24 10:25:42,376 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:42,377 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:42,377 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-10-24 10:25:42,378 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:42,378 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:42,378 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-10-24 10:25:42,380 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:42,381 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:42,382 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:42,382 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:42,383 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 183 [2021-10-24 10:25:42,385 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 184 [2021-10-24 10:25:42,385 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:42,386 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:42,387 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:42,388 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:42,388 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 209 [2021-10-24 10:25:42,389 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 210 [2021-10-24 10:25:42,390 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:42,390 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:42,391 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 231 [2021-10-24 10:25:42,398 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 601 [2021-10-24 10:25:42,398 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:25:42,403 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:42,409 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 547 [2021-10-24 10:25:42,416 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 639 [2021-10-24 10:25:42,424 INFO L446 ElimStorePlain]: Different costs {6=[|v_#memory_int_47|], 20=[|v_#memory_$Pointer$.offset_67|, |v_#memory_$Pointer$.base_69|]} [2021-10-24 10:25:42,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:42,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:42,450 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 23 [2021-10-24 10:25:42,451 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:42,452 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 10:25:42,453 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:42,453 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 10:25:42,453 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-24 10:25:42,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:42,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:42,473 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 23 [2021-10-24 10:25:42,474 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:42,475 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 10:25:42,475 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:42,476 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 10:25:42,476 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-24 10:25:42,477 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:42,522 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:42,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:42,535 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-24 10:25:42,536 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 18 [2021-10-24 10:25:42,537 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:42,537 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-10-24 10:25:42,538 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:42,538 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-10-24 10:25:42,538 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-10-24 10:25:42,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:42,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:42,561 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-10-24 10:25:42,562 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 183 treesize of output 154 [2021-10-24 10:25:42,563 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:42,564 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 125 [2021-10-24 10:25:42,565 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:42,566 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 125 [2021-10-24 10:25:42,566 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-10-24 10:25:42,567 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:42,608 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:42,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:42,623 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-24 10:25:42,623 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 18 [2021-10-24 10:25:42,624 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:42,625 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-10-24 10:25:42,625 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:42,625 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-10-24 10:25:42,626 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-10-24 10:25:42,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:42,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:25:42,676 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-24 10:25:42,677 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 159 treesize of output 91 [2021-10-24 10:25:42,678 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:42,679 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 155 [2021-10-24 10:25:42,680 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:42,681 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 155 [2021-10-24 10:25:42,681 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-10-24 10:25:42,682 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:42,720 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:42,748 INFO L180 QuantifierPusher]: treesize reduction 78, result has 88.1 percent of original size [2021-10-24 10:25:42,755 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 579 [2021-10-24 10:25:42,756 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-10-24 10:25:42,757 INFO L247 ElimStorePlain]: Needed 7 recursive calls to eliminate 3 variables, input treesize:761, output treesize:579 [2021-10-24 10:25:42,764 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:42,802 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:42,803 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:42,804 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:42,805 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:42,809 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:42,812 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:42,816 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:42,851 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:42,853 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:42,855 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:42,856 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:42,857 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:42,860 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:42,865 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:42,877 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:42,892 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:42,895 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:42,921 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-24 10:25:46,480 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-24 10:25:46,480 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-10-24 10:25:46,480 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 23 [2021-10-24 10:25:46,480 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570692468] [2021-10-24 10:25:46,481 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-10-24 10:25:46,481 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:25:46,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-10-24 10:25:46,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=1026, Unknown=0, NotChecked=0, Total=1190 [2021-10-24 10:25:46,482 INFO L87 Difference]: Start difference. First operand 51 states and 53 transitions. Second operand has 24 states, 23 states have (on average 2.0434782608695654) internal successors, (47), 24 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:25:47,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:25:47,641 INFO L93 Difference]: Finished difference Result 84 states and 88 transitions. [2021-10-24 10:25:47,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-24 10:25:47,642 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 2.0434782608695654) internal successors, (47), 24 states have internal predecessors, (47), 0 states have call successors, (0), 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 16 [2021-10-24 10:25:47,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:25:47,642 INFO L225 Difference]: With dead ends: 84 [2021-10-24 10:25:47,642 INFO L226 Difference]: Without dead ends: 84 [2021-10-24 10:25:47,644 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 448 ImplicationChecksByTransitivity, 4415.0ms TimeCoverageRelationStatistics Valid=322, Invalid=1570, Unknown=0, NotChecked=0, Total=1892 [2021-10-24 10:25:47,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2021-10-24 10:25:47,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 50. [2021-10-24 10:25:47,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 36 states have (on average 1.4444444444444444) internal successors, (52), 49 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:25:47,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 52 transitions. [2021-10-24 10:25:47,646 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 52 transitions. Word has length 16 [2021-10-24 10:25:47,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:25:47,646 INFO L470 AbstractCegarLoop]: Abstraction has 50 states and 52 transitions. [2021-10-24 10:25:47,646 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 2.0434782608695654) internal successors, (47), 24 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:25:47,646 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 52 transitions. [2021-10-24 10:25:47,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-24 10:25:47,647 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:25:47,647 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:25:47,681 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-24 10:25:47,854 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 10:25:47,855 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 37 more)] === [2021-10-24 10:25:47,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:25:47,855 INFO L82 PathProgramCache]: Analyzing trace with hash -239284726, now seen corresponding path program 1 times [2021-10-24 10:25:47,855 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:25:47,855 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712948907] [2021-10-24 10:25:47,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:25:47,856 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:25:47,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:25:47,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:25:47,903 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:25:47,903 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712948907] [2021-10-24 10:25:47,903 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712948907] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:25:47,904 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:25:47,904 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-24 10:25:47,906 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613803842] [2021-10-24 10:25:47,907 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-24 10:25:47,907 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:25:47,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-24 10:25:47,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-24 10:25:47,908 INFO L87 Difference]: Start difference. First operand 50 states and 52 transitions. Second operand has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:25:47,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:25:47,967 INFO L93 Difference]: Finished difference Result 49 states and 51 transitions. [2021-10-24 10:25:47,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 10:25:47,968 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 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 17 [2021-10-24 10:25:47,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:25:47,969 INFO L225 Difference]: With dead ends: 49 [2021-10-24 10:25:47,969 INFO L226 Difference]: Without dead ends: 49 [2021-10-24 10:25:47,969 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.6ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-24 10:25:47,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-10-24 10:25:47,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2021-10-24 10:25:47,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 36 states have (on average 1.4166666666666667) internal successors, (51), 48 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:25:47,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 51 transitions. [2021-10-24 10:25:47,971 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 51 transitions. Word has length 17 [2021-10-24 10:25:47,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:25:47,972 INFO L470 AbstractCegarLoop]: Abstraction has 49 states and 51 transitions. [2021-10-24 10:25:47,972 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:25:47,972 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 51 transitions. [2021-10-24 10:25:47,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-24 10:25:47,974 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:25:47,974 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:25:47,974 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2021-10-24 10:25:47,975 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr25REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 37 more)] === [2021-10-24 10:25:47,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:25:47,975 INFO L82 PathProgramCache]: Analyzing trace with hash 1172108188, now seen corresponding path program 1 times [2021-10-24 10:25:47,975 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:25:47,975 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758419726] [2021-10-24 10:25:47,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:25:47,976 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:25:47,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:25:48,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:25:48,061 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:25:48,061 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758419726] [2021-10-24 10:25:48,061 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758419726] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:25:48,061 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:25:48,061 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-24 10:25:48,062 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466809253] [2021-10-24 10:25:48,062 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-24 10:25:48,062 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:25:48,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-24 10:25:48,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-24 10:25:48,063 INFO L87 Difference]: Start difference. First operand 49 states and 51 transitions. Second operand has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:25:48,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:25:48,168 INFO L93 Difference]: Finished difference Result 48 states and 50 transitions. [2021-10-24 10:25:48,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-24 10:25:48,168 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-10-24 10:25:48,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:25:48,169 INFO L225 Difference]: With dead ends: 48 [2021-10-24 10:25:48,169 INFO L226 Difference]: Without dead ends: 48 [2021-10-24 10:25:48,174 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 48.5ms TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-10-24 10:25:48,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2021-10-24 10:25:48,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2021-10-24 10:25:48,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 36 states have (on average 1.3888888888888888) internal successors, (50), 47 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:25:48,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 50 transitions. [2021-10-24 10:25:48,176 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 50 transitions. Word has length 18 [2021-10-24 10:25:48,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:25:48,176 INFO L470 AbstractCegarLoop]: Abstraction has 48 states and 50 transitions. [2021-10-24 10:25:48,176 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:25:48,176 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 50 transitions. [2021-10-24 10:25:48,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-24 10:25:48,176 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:25:48,177 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:25:48,177 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2021-10-24 10:25:48,177 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr26REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 37 more)] === [2021-10-24 10:25:48,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:25:48,177 INFO L82 PathProgramCache]: Analyzing trace with hash 1172108189, now seen corresponding path program 1 times [2021-10-24 10:25:48,177 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:25:48,178 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666069646] [2021-10-24 10:25:48,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:25:48,178 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:25:48,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:25:48,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:25:48,224 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:25:48,224 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666069646] [2021-10-24 10:25:48,224 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666069646] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:25:48,225 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:25:48,225 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-24 10:25:48,225 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740166617] [2021-10-24 10:25:48,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 10:25:48,225 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:25:48,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 10:25:48,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:25:48,226 INFO L87 Difference]: Start difference. First operand 48 states and 50 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:25:48,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:25:48,263 INFO L93 Difference]: Finished difference Result 43 states and 45 transitions. [2021-10-24 10:25:48,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:25:48,264 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-10-24 10:25:48,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:25:48,264 INFO L225 Difference]: With dead ends: 43 [2021-10-24 10:25:48,264 INFO L226 Difference]: Without dead ends: 43 [2021-10-24 10:25:48,265 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.7ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:25:48,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2021-10-24 10:25:48,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2021-10-24 10:25:48,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 36 states have (on average 1.25) internal successors, (45), 42 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:25:48,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 45 transitions. [2021-10-24 10:25:48,267 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 45 transitions. Word has length 18 [2021-10-24 10:25:48,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:25:48,267 INFO L470 AbstractCegarLoop]: Abstraction has 43 states and 45 transitions. [2021-10-24 10:25:48,267 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:25:48,268 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 45 transitions. [2021-10-24 10:25:48,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-24 10:25:48,268 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:25:48,268 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:25:48,269 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2021-10-24 10:25:48,269 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 37 more)] === [2021-10-24 10:25:48,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:25:48,270 INFO L82 PathProgramCache]: Analyzing trace with hash 1624825954, now seen corresponding path program 1 times [2021-10-24 10:25:48,270 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:25:48,270 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887327204] [2021-10-24 10:25:48,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:25:48,270 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:25:48,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-24 10:25:48,308 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-24 10:25:48,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-24 10:25:48,376 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-24 10:25:48,377 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-24 10:25:48,378 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:25:48,380 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATION [2021-10-24 10:25:48,380 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATION [2021-10-24 10:25:48,381 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATION [2021-10-24 10:25:48,381 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATION [2021-10-24 10:25:48,381 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATION [2021-10-24 10:25:48,381 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATION [2021-10-24 10:25:48,381 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATION [2021-10-24 10:25:48,382 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATION [2021-10-24 10:25:48,382 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATION [2021-10-24 10:25:48,382 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATION [2021-10-24 10:25:48,382 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATION [2021-10-24 10:25:48,382 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATION [2021-10-24 10:25:48,382 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATION [2021-10-24 10:25:48,383 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATION [2021-10-24 10:25:48,383 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATION [2021-10-24 10:25:48,383 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATION [2021-10-24 10:25:48,383 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16REQUIRES_VIOLATION [2021-10-24 10:25:48,383 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17REQUIRES_VIOLATION [2021-10-24 10:25:48,384 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18REQUIRES_VIOLATION [2021-10-24 10:25:48,384 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19REQUIRES_VIOLATION [2021-10-24 10:25:48,384 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20REQUIRES_VIOLATION [2021-10-24 10:25:48,384 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21REQUIRES_VIOLATION [2021-10-24 10:25:48,384 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE [2021-10-24 10:25:48,385 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_FREE [2021-10-24 10:25:48,385 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE [2021-10-24 10:25:48,385 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25REQUIRES_VIOLATION [2021-10-24 10:25:48,385 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26REQUIRES_VIOLATION [2021-10-24 10:25:48,385 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27REQUIRES_VIOLATION [2021-10-24 10:25:48,385 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28REQUIRES_VIOLATION [2021-10-24 10:25:48,386 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29REQUIRES_VIOLATION [2021-10-24 10:25:48,386 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30REQUIRES_VIOLATION [2021-10-24 10:25:48,386 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31REQUIRES_VIOLATION [2021-10-24 10:25:48,386 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32REQUIRES_VIOLATION [2021-10-24 10:25:48,386 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr33REQUIRES_VIOLATION [2021-10-24 10:25:48,387 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr34REQUIRES_VIOLATION [2021-10-24 10:25:48,387 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_FREE [2021-10-24 10:25:48,387 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE [2021-10-24 10:25:48,387 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE [2021-10-24 10:25:48,387 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr38REQUIRES_VIOLATION [2021-10-24 10:25:48,387 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr39REQUIRES_VIOLATION [2021-10-24 10:25:48,388 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2021-10-24 10:25:48,393 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-24 10:25:48,440 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 10:25:48 BoogieIcfgContainer [2021-10-24 10:25:48,440 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-24 10:25:48,441 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-24 10:25:48,441 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-24 10:25:48,441 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-24 10:25:48,442 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:25:27" (3/4) ... [2021-10-24 10:25:48,444 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-24 10:25:48,445 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-24 10:25:48,445 INFO L168 Benchmark]: Toolchain (without parser) took 22336.31 ms. Allocated memory was 107.0 MB in the beginning and 283.1 MB in the end (delta: 176.2 MB). Free memory was 74.5 MB in the beginning and 233.3 MB in the end (delta: -158.8 MB). Peak memory consumption was 16.9 MB. Max. memory is 16.1 GB. [2021-10-24 10:25:48,445 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 107.0 MB. Free memory is still 60.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 10:25:48,446 INFO L168 Benchmark]: CACSL2BoogieTranslator took 549.27 ms. Allocated memory is still 107.0 MB. Free memory was 74.2 MB in the beginning and 74.9 MB in the end (delta: -680.1 kB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-24 10:25:48,446 INFO L168 Benchmark]: Boogie Procedure Inliner took 75.99 ms. Allocated memory is still 107.0 MB. Free memory was 74.9 MB in the beginning and 72.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-24 10:25:48,446 INFO L168 Benchmark]: Boogie Preprocessor took 58.57 ms. Allocated memory is still 107.0 MB. Free memory was 72.8 MB in the beginning and 71.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-24 10:25:48,446 INFO L168 Benchmark]: RCFGBuilder took 719.70 ms. Allocated memory is still 107.0 MB. Free memory was 71.1 MB in the beginning and 53.1 MB in the end (delta: 18.1 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-24 10:25:48,446 INFO L168 Benchmark]: TraceAbstraction took 20920.69 ms. Allocated memory was 107.0 MB in the beginning and 283.1 MB in the end (delta: 176.2 MB). Free memory was 52.3 MB in the beginning and 233.3 MB in the end (delta: -181.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 10:25:48,447 INFO L168 Benchmark]: Witness Printer took 3.88 ms. Allocated memory is still 283.1 MB. Free memory is still 233.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 10:25:48,447 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 107.0 MB. Free memory is still 60.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 549.27 ms. Allocated memory is still 107.0 MB. Free memory was 74.2 MB in the beginning and 74.9 MB in the end (delta: -680.1 kB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 75.99 ms. Allocated memory is still 107.0 MB. Free memory was 74.9 MB in the beginning and 72.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 58.57 ms. Allocated memory is still 107.0 MB. Free memory was 72.8 MB in the beginning and 71.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 719.70 ms. Allocated memory is still 107.0 MB. Free memory was 71.1 MB in the beginning and 53.1 MB in the end (delta: 18.1 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 20920.69 ms. Allocated memory was 107.0 MB in the beginning and 283.1 MB in the end (delta: 176.2 MB). Free memory was 52.3 MB in the beginning and 233.3 MB in the end (delta: -181.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 3.88 ms. Allocated memory is still 283.1 MB. Free memory is still 233.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 537]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 537. Possible FailurePath: [L539] struct item *list = ((void *)0); [L530] struct item *item = malloc(sizeof *item); [L531] EXPR \read(**plist) [L531] item->next = *plist [L532] EXPR item->next [L532-L534] EXPR (item->next) ? item->next->data : malloc(sizeof *item) [L532-L534] EXPR (item->next) ? item->next->data : malloc(sizeof *item) [L532-L534] item->data = (item->next) ? item->next->data : malloc(sizeof *item) [L535] *plist = item [L542] COND FALSE !(__VERIFIER_nondet_int()) [L543] \read(*list) [L543] COND TRUE \read(*list) [L544] EXPR \read(*list) [L544] EXPR list->next [L544] struct item *next = list->next; [L545] EXPR \read(*list) [L545] free(list) [L545] free(list) [L545] free(list) [L546] list = next [L548] \read(*list) [L548] COND FALSE !(\read(*list)) [L553] return 0; [L539] struct item *list = ((void *)0); [L553] return 0; - UnprovableResult [Line: 531]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 531]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 531]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 531]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 532]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 532]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 533]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 533]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 533]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 533]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 532]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 532]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 535]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 535]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 543]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 543]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 544]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 544]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 544]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 544]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 545]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 545]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 545]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 545]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 545]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 546]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 546]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 551]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 551]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 73 locations, 41 error locations. Started 1 CEGAR loops. OverallTime: 20781.3ms, OverallIterations: 17, TraceHistogramMax: 2, EmptinessCheckTime: 21.4ms, AutomataDifference: 3221.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 32.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 431 SDtfs, 1500 SDslu, 812 SDs, 0 SdLazy, 2077 SolverSat, 151 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1616.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 199 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 143 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 790 ImplicationChecksByTransitivity, 9351.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=73occurred in iteration=0, InterpolantAutomatonStates: 100, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 116.8ms AutomataMinimizationTime, 16 MinimizatonAttempts, 189 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 87.2ms SsaConstructionTime, 430.6ms SatisfiabilityAnalysisTime, 3156.4ms InterpolantComputationTime, 241 NumberOfCodeBlocks, 241 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 231 ConstructedInterpolants, 16 QuantifiedInterpolants, 2586 SizeOfPredicates, 39 NumberOfNonLiveVariables, 314 ConjunctsInSsa, 71 ConjunctsInUnsatCore, 20 InterpolantComputations, 14 PerfectInterpolantSequences, 6/30 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 [2021-10-24 10:25:48,498 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-e943c26 [2021-10-24 10:25:50,954 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-24 10:25:50,957 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-24 10:25:51,010 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-24 10:25:51,010 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-24 10:25:51,016 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-24 10:25:51,018 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-24 10:25:51,023 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-24 10:25:51,027 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-24 10:25:51,037 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-24 10:25:51,039 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-24 10:25:51,041 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-24 10:25:51,041 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-24 10:25:51,044 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-24 10:25:51,046 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-24 10:25:51,051 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-24 10:25:51,053 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-24 10:25:51,056 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-24 10:25:51,059 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-24 10:25:51,064 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-24 10:25:51,069 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-24 10:25:51,070 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-24 10:25:51,074 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-24 10:25:51,076 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-24 10:25:51,082 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-24 10:25:51,083 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-24 10:25:51,083 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-24 10:25:51,085 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-24 10:25:51,086 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-24 10:25:51,087 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-24 10:25:51,088 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-24 10:25:51,089 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-24 10:25:51,091 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-24 10:25:51,091 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-24 10:25:51,093 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-24 10:25:51,093 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-24 10:25:51,094 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-24 10:25:51,094 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-24 10:25:51,095 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-24 10:25:51,097 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-24 10:25:51,098 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-24 10:25:51,098 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2021-10-24 10:25:51,143 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 10:25:51,144 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 10:25:51,145 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-24 10:25:51,145 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-24 10:25:51,146 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-24 10:25:51,146 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-24 10:25:51,146 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-24 10:25:51,146 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-24 10:25:51,146 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-24 10:25:51,148 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-24 10:25:51,149 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-24 10:25:51,149 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 10:25:51,150 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-24 10:25:51,150 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-24 10:25:51,150 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-24 10:25:51,150 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-24 10:25:51,151 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 10:25:51,151 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-24 10:25:51,151 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-24 10:25:51,151 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-24 10:25:51,151 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 10:25:51,152 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-24 10:25:51,152 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-24 10:25:51,152 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-24 10:25:51,152 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-24 10:25:51,153 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 10:25:51,153 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 10:25:51,153 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-24 10:25:51,153 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 10:25:51,153 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:25:51,154 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 10:25:51,154 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 10:25:51,154 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-24 10:25:51,155 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-24 10:25:51,155 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-24 10:25:51,155 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-24 10:25:51,155 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_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1228d922512a0e9364273220ccc1e5afc3bfb7c0e22f10439a1ba902492e71b2 [2021-10-24 10:25:51,515 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 10:25:51,545 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 10:25:51,549 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 10:25:51,550 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-24 10:25:51,551 INFO L275 PluginConnector]: CDTParser initialized [2021-10-24 10:25:51,552 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/../../sv-benchmarks/c/memsafety/test-0232-1.i [2021-10-24 10:25:51,612 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/data/6120d4a3c/b8b800098a8143c1b8541709f9f5be66/FLAG3880ca1d4 [2021-10-24 10:25:52,277 INFO L306 CDTParser]: Found 1 translation units. [2021-10-24 10:25:52,278 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/sv-benchmarks/c/memsafety/test-0232-1.i [2021-10-24 10:25:52,291 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/data/6120d4a3c/b8b800098a8143c1b8541709f9f5be66/FLAG3880ca1d4 [2021-10-24 10:25:52,538 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/data/6120d4a3c/b8b800098a8143c1b8541709f9f5be66 [2021-10-24 10:25:52,540 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 10:25:52,542 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-24 10:25:52,543 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-24 10:25:52,544 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-24 10:25:52,547 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-24 10:25:52,548 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:25:52" (1/1) ... [2021-10-24 10:25:52,549 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6efb399f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:25:52, skipping insertion in model container [2021-10-24 10:25:52,549 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:25:52" (1/1) ... [2021-10-24 10:25:52,556 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-24 10:25:52,600 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 10:25:52,916 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:25:52,933 INFO L203 MainTranslator]: Completed pre-run [2021-10-24 10:25:53,000 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:25:53,033 INFO L208 MainTranslator]: Completed translation [2021-10-24 10:25:53,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:25:53 WrapperNode [2021-10-24 10:25:53,034 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-24 10:25:53,035 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-24 10:25:53,035 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-24 10:25:53,035 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-24 10:25:53,043 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:25:53" (1/1) ... [2021-10-24 10:25:53,060 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:25:53" (1/1) ... [2021-10-24 10:25:53,093 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-24 10:25:53,094 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-24 10:25:53,094 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-24 10:25:53,094 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-24 10:25:53,102 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:25:53" (1/1) ... [2021-10-24 10:25:53,103 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:25:53" (1/1) ... [2021-10-24 10:25:53,108 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:25:53" (1/1) ... [2021-10-24 10:25:53,108 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:25:53" (1/1) ... [2021-10-24 10:25:53,116 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:25:53" (1/1) ... [2021-10-24 10:25:53,121 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:25:53" (1/1) ... [2021-10-24 10:25:53,123 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:25:53" (1/1) ... [2021-10-24 10:25:53,126 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-24 10:25:53,127 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-24 10:25:53,128 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-24 10:25:53,128 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-24 10:25:53,129 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:25:53" (1/1) ... [2021-10-24 10:25:53,135 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:25:53,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 10:25:53,163 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-24 10:25:53,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-24 10:25:53,200 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-24 10:25:53,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-24 10:25:53,201 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-24 10:25:53,201 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-24 10:25:53,201 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-24 10:25:53,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-24 10:25:53,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-24 10:25:53,202 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-24 10:25:53,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-24 10:25:53,816 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-24 10:25:53,816 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-10-24 10:25:53,818 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:25:53 BoogieIcfgContainer [2021-10-24 10:25:53,819 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-24 10:25:53,820 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-24 10:25:53,826 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-24 10:25:53,829 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-24 10:25:53,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 10:25:52" (1/3) ... [2021-10-24 10:25:53,830 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27a8c03a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:25:53, skipping insertion in model container [2021-10-24 10:25:53,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:25:53" (2/3) ... [2021-10-24 10:25:53,831 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27a8c03a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:25:53, skipping insertion in model container [2021-10-24 10:25:53,831 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:25:53" (3/3) ... [2021-10-24 10:25:53,832 INFO L111 eAbstractionObserver]: Analyzing ICFG test-0232-1.i [2021-10-24 10:25:53,838 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-24 10:25:53,838 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 41 error locations. [2021-10-24 10:25:53,898 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-24 10:25:53,909 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-24 10:25:53,909 INFO L340 AbstractCegarLoop]: Starting to check reachability of 41 error locations. [2021-10-24 10:25:53,935 INFO L276 IsEmpty]: Start isEmpty. Operand has 80 states, 38 states have (on average 2.236842105263158) internal successors, (85), 79 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:25:53,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-24 10:25:53,941 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:25:53,941 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-24 10:25:53,941 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 37 more)] === [2021-10-24 10:25:53,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:25:53,947 INFO L82 PathProgramCache]: Analyzing trace with hash 925637, now seen corresponding path program 1 times [2021-10-24 10:25:53,959 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:25:53,961 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [808690330] [2021-10-24 10:25:53,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:25:53,962 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:25:53,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:25:53,969 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:25:53,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-24 10:25:54,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:25:54,077 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-24 10:25:54,081 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:25:54,208 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-24 10:25:54,302 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-10-24 10:25:54,303 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 21 [2021-10-24 10:25:54,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:25:54,356 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:25:54,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:25:54,423 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:25:54,423 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [808690330] [2021-10-24 10:25:54,424 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [808690330] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:25:54,424 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:25:54,424 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-24 10:25:54,426 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672557339] [2021-10-24 10:25:54,430 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-24 10:25:54,433 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:25:54,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-24 10:25:54,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-24 10:25:54,460 INFO L87 Difference]: Start difference. First operand has 80 states, 38 states have (on average 2.236842105263158) internal successors, (85), 79 states have internal predecessors, (85), 0 states have call successors, (0), 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 5 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:25:54,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:25:54,822 INFO L93 Difference]: Finished difference Result 91 states and 95 transitions. [2021-10-24 10:25:54,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 10:25:54,826 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 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 4 [2021-10-24 10:25:54,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:25:54,835 INFO L225 Difference]: With dead ends: 91 [2021-10-24 10:25:54,836 INFO L226 Difference]: Without dead ends: 89 [2021-10-24 10:25:54,837 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 75.4ms TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-10-24 10:25:54,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2021-10-24 10:25:54,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 70. [2021-10-24 10:25:54,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 37 states have (on average 1.972972972972973) internal successors, (73), 69 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:25:54,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 73 transitions. [2021-10-24 10:25:54,884 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 73 transitions. Word has length 4 [2021-10-24 10:25:54,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:25:54,884 INFO L470 AbstractCegarLoop]: Abstraction has 70 states and 73 transitions. [2021-10-24 10:25:54,885 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:25:54,885 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 73 transitions. [2021-10-24 10:25:54,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-24 10:25:54,885 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:25:54,885 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-24 10:25:54,895 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-10-24 10:25:55,095 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:25:55,099 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 37 more)] === [2021-10-24 10:25:55,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:25:55,100 INFO L82 PathProgramCache]: Analyzing trace with hash 925638, now seen corresponding path program 1 times [2021-10-24 10:25:55,103 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:25:55,103 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [288800780] [2021-10-24 10:25:55,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:25:55,104 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:25:55,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:25:55,105 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:25:55,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-24 10:25:55,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:25:55,197 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-24 10:25:55,199 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:25:55,219 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-24 10:25:55,224 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-24 10:25:55,323 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-10-24 10:25:55,324 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 30 [2021-10-24 10:25:55,336 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-10-24 10:25:55,338 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 23 [2021-10-24 10:25:55,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:25:55,378 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:25:55,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:25:55,701 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:25:55,701 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [288800780] [2021-10-24 10:25:55,701 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [288800780] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:25:55,702 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:25:55,702 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-10-24 10:25:55,702 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680297456] [2021-10-24 10:25:55,704 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-24 10:25:55,704 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:25:55,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-24 10:25:55,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-24 10:25:55,707 INFO L87 Difference]: Start difference. First operand 70 states and 73 transitions. Second operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:26:09,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:26:09,518 INFO L93 Difference]: Finished difference Result 142 states and 156 transitions. [2021-10-24 10:26:09,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-24 10:26:09,519 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 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 4 [2021-10-24 10:26:09,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:26:09,522 INFO L225 Difference]: With dead ends: 142 [2021-10-24 10:26:09,523 INFO L226 Difference]: Without dead ends: 142 [2021-10-24 10:26:09,523 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 584.3ms TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2021-10-24 10:26:09,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2021-10-24 10:26:09,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 71. [2021-10-24 10:26:09,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 43 states have (on average 1.7906976744186047) internal successors, (77), 70 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:26:09,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 77 transitions. [2021-10-24 10:26:09,534 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 77 transitions. Word has length 4 [2021-10-24 10:26:09,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:26:09,534 INFO L470 AbstractCegarLoop]: Abstraction has 71 states and 77 transitions. [2021-10-24 10:26:09,535 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:26:09,535 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 77 transitions. [2021-10-24 10:26:09,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-24 10:26:09,535 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:26:09,536 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-24 10:26:09,549 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-24 10:26:09,736 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:26:09,736 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 37 more)] === [2021-10-24 10:26:09,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:26:09,737 INFO L82 PathProgramCache]: Analyzing trace with hash 28694727, now seen corresponding path program 1 times [2021-10-24 10:26:09,738 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:26:09,738 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1819500008] [2021-10-24 10:26:09,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:26:09,738 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:26:09,738 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:26:09,744 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:26:09,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-24 10:26:09,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:26:09,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 10:26:09,817 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:26:09,829 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-24 10:26:09,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:26:09,846 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:26:09,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:26:09,867 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:26:09,867 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1819500008] [2021-10-24 10:26:09,867 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1819500008] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:26:09,868 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:26:09,868 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-24 10:26:09,868 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983702238] [2021-10-24 10:26:09,869 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 10:26:09,869 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:26:09,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 10:26:09,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:26:09,871 INFO L87 Difference]: Start difference. First operand 71 states and 77 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:26:10,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:26:10,083 INFO L93 Difference]: Finished difference Result 77 states and 81 transitions. [2021-10-24 10:26:10,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:26:10,084 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 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 5 [2021-10-24 10:26:10,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:26:10,085 INFO L225 Difference]: With dead ends: 77 [2021-10-24 10:26:10,085 INFO L226 Difference]: Without dead ends: 77 [2021-10-24 10:26:10,086 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:26:10,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2021-10-24 10:26:10,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 67. [2021-10-24 10:26:10,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 43 states have (on average 1.697674418604651) internal successors, (73), 66 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:26:10,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 73 transitions. [2021-10-24 10:26:10,099 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 73 transitions. Word has length 5 [2021-10-24 10:26:10,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:26:10,099 INFO L470 AbstractCegarLoop]: Abstraction has 67 states and 73 transitions. [2021-10-24 10:26:10,099 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:26:10,100 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 73 transitions. [2021-10-24 10:26:10,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-24 10:26:10,100 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:26:10,100 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-24 10:26:10,118 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-24 10:26:10,311 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:26:10,312 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 37 more)] === [2021-10-24 10:26:10,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:26:10,312 INFO L82 PathProgramCache]: Analyzing trace with hash 28694728, now seen corresponding path program 1 times [2021-10-24 10:26:10,313 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:26:10,313 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [130490587] [2021-10-24 10:26:10,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:26:10,313 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:26:10,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:26:10,317 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:26:10,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-24 10:26:10,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:26:10,381 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-24 10:26:10,382 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:26:10,396 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-24 10:26:10,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:26:10,428 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:26:10,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:26:10,509 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:26:10,509 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [130490587] [2021-10-24 10:26:10,510 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [130490587] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:26:10,510 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:26:10,510 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-24 10:26:10,510 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776217717] [2021-10-24 10:26:10,510 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 10:26:10,511 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:26:10,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 10:26:10,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:26:10,511 INFO L87 Difference]: Start difference. First operand 67 states and 73 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:26:10,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:26:10,675 INFO L93 Difference]: Finished difference Result 64 states and 70 transitions. [2021-10-24 10:26:10,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:26:10,676 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-10-24 10:26:10,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:26:10,677 INFO L225 Difference]: With dead ends: 64 [2021-10-24 10:26:10,677 INFO L226 Difference]: Without dead ends: 64 [2021-10-24 10:26:10,677 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 39.9ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:26:10,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2021-10-24 10:26:10,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 63. [2021-10-24 10:26:10,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 43 states have (on average 1.6046511627906976) internal successors, (69), 62 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:26:10,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 69 transitions. [2021-10-24 10:26:10,682 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 69 transitions. Word has length 5 [2021-10-24 10:26:10,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:26:10,683 INFO L470 AbstractCegarLoop]: Abstraction has 63 states and 69 transitions. [2021-10-24 10:26:10,683 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:26:10,683 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 69 transitions. [2021-10-24 10:26:10,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-24 10:26:10,684 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:26:10,684 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:26:10,702 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-24 10:26:10,894 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:26:10,895 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 37 more)] === [2021-10-24 10:26:10,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:26:10,895 INFO L82 PathProgramCache]: Analyzing trace with hash -1328641136, now seen corresponding path program 1 times [2021-10-24 10:26:10,895 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:26:10,896 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [698000330] [2021-10-24 10:26:10,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:26:10,896 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:26:10,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:26:10,897 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:26:10,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-24 10:26:10,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:26:10,968 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-24 10:26:10,969 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:26:11,133 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-24 10:26:11,134 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 40 [2021-10-24 10:26:11,164 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-24 10:26:11,164 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 36 [2021-10-24 10:26:11,287 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-10-24 10:26:11,288 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 35 [2021-10-24 10:26:11,297 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-10-24 10:26:11,297 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 13 [2021-10-24 10:26:11,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:26:11,339 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:26:11,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:26:11,479 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:26:11,479 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [698000330] [2021-10-24 10:26:11,479 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [698000330] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:26:11,480 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:26:11,480 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 9 [2021-10-24 10:26:11,480 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168362321] [2021-10-24 10:26:11,480 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-24 10:26:11,480 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:26:11,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-24 10:26:11,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-10-24 10:26:11,481 INFO L87 Difference]: Start difference. First operand 63 states and 69 transitions. Second operand has 9 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:26:12,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:26:12,405 INFO L93 Difference]: Finished difference Result 74 states and 80 transitions. [2021-10-24 10:26:12,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-24 10:26:12,406 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 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 10 [2021-10-24 10:26:12,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:26:12,406 INFO L225 Difference]: With dead ends: 74 [2021-10-24 10:26:12,406 INFO L226 Difference]: Without dead ends: 74 [2021-10-24 10:26:12,407 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 645.2ms TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2021-10-24 10:26:12,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2021-10-24 10:26:12,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 69. [2021-10-24 10:26:12,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 49 states have (on average 1.530612244897959) internal successors, (75), 68 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:26:12,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 75 transitions. [2021-10-24 10:26:12,412 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 75 transitions. Word has length 10 [2021-10-24 10:26:12,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:26:12,412 INFO L470 AbstractCegarLoop]: Abstraction has 69 states and 75 transitions. [2021-10-24 10:26:12,413 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:26:12,413 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 75 transitions. [2021-10-24 10:26:12,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-24 10:26:12,414 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:26:12,414 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:26:12,423 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-24 10:26:12,614 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:26:12,615 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr18REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 37 more)] === [2021-10-24 10:26:12,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:26:12,615 INFO L82 PathProgramCache]: Analyzing trace with hash 2141457576, now seen corresponding path program 1 times [2021-10-24 10:26:12,615 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:26:12,616 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1180383911] [2021-10-24 10:26:12,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:26:12,616 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:26:12,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:26:12,617 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:26:12,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-24 10:26:12,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:26:12,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-24 10:26:12,717 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:26:12,883 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2021-10-24 10:26:12,927 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2021-10-24 10:26:12,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:26:12,947 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:26:13,000 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 36 [2021-10-24 10:26:13,163 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-10-24 10:26:13,163 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 33 [2021-10-24 10:26:13,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:26:13,264 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:26:13,265 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1180383911] [2021-10-24 10:26:13,265 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1180383911] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:26:13,265 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:26:13,265 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 6 [2021-10-24 10:26:13,265 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492800817] [2021-10-24 10:26:13,266 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-24 10:26:13,266 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:26:13,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-24 10:26:13,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-24 10:26:13,267 INFO L87 Difference]: Start difference. First operand 69 states and 75 transitions. Second operand has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:26:13,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:26:13,690 INFO L93 Difference]: Finished difference Result 77 states and 81 transitions. [2021-10-24 10:26:13,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-24 10:26:13,700 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-10-24 10:26:13,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:26:13,701 INFO L225 Difference]: With dead ends: 77 [2021-10-24 10:26:13,701 INFO L226 Difference]: Without dead ends: 77 [2021-10-24 10:26:13,702 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 202.7ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-24 10:26:13,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2021-10-24 10:26:13,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 68. [2021-10-24 10:26:13,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 49 states have (on average 1.510204081632653) internal successors, (74), 67 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:26:13,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 74 transitions. [2021-10-24 10:26:13,707 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 74 transitions. Word has length 16 [2021-10-24 10:26:13,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:26:13,707 INFO L470 AbstractCegarLoop]: Abstraction has 68 states and 74 transitions. [2021-10-24 10:26:13,707 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:26:13,708 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 74 transitions. [2021-10-24 10:26:13,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-24 10:26:13,708 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:26:13,708 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:26:13,720 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-24 10:26:13,914 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:26:13,915 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr19REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 37 more)] === [2021-10-24 10:26:13,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:26:13,915 INFO L82 PathProgramCache]: Analyzing trace with hash 2141457577, now seen corresponding path program 1 times [2021-10-24 10:26:13,915 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:26:13,915 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1955219736] [2021-10-24 10:26:13,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:26:13,916 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:26:13,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:26:13,916 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:26:13,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-24 10:26:14,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:26:14,034 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-24 10:26:14,035 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:26:14,256 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-24 10:26:14,264 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-10-24 10:26:14,345 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23 [2021-10-24 10:26:14,349 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2021-10-24 10:26:14,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:26:14,377 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:26:14,611 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 28 [2021-10-24 10:26:14,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:26:14,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:26:14,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:26:14,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:26:14,815 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 24 [2021-10-24 10:26:15,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:26:15,102 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:26:15,103 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1955219736] [2021-10-24 10:26:15,103 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1955219736] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:26:15,103 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:26:15,103 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-10-24 10:26:15,103 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628216315] [2021-10-24 10:26:15,103 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-24 10:26:15,104 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:26:15,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-24 10:26:15,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-10-24 10:26:15,105 INFO L87 Difference]: Start difference. First operand 68 states and 74 transitions. Second operand has 10 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 10 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:26:15,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:26:15,965 INFO L93 Difference]: Finished difference Result 79 states and 83 transitions. [2021-10-24 10:26:15,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 10:26:15,966 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 10 states have internal predecessors, (30), 0 states have call successors, (0), 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 16 [2021-10-24 10:26:15,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:26:15,967 INFO L225 Difference]: With dead ends: 79 [2021-10-24 10:26:15,967 INFO L226 Difference]: Without dead ends: 79 [2021-10-24 10:26:15,968 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 446.2ms TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2021-10-24 10:26:15,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2021-10-24 10:26:15,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 67. [2021-10-24 10:26:15,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 49 states have (on average 1.489795918367347) internal successors, (73), 66 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:26:15,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 73 transitions. [2021-10-24 10:26:15,972 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 73 transitions. Word has length 16 [2021-10-24 10:26:15,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:26:15,973 INFO L470 AbstractCegarLoop]: Abstraction has 67 states and 73 transitions. [2021-10-24 10:26:15,973 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 10 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:26:15,973 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 73 transitions. [2021-10-24 10:26:15,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-24 10:26:15,974 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:26:15,974 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:26:15,990 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-24 10:26:16,186 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:26:16,186 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 37 more)] === [2021-10-24 10:26:16,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:26:16,187 INFO L82 PathProgramCache]: Analyzing trace with hash 671562912, now seen corresponding path program 1 times [2021-10-24 10:26:16,187 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:26:16,187 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1870279741] [2021-10-24 10:26:16,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:26:16,187 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:26:16,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:26:16,188 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:26:16,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-24 10:26:16,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:26:16,324 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-24 10:26:16,325 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:26:16,495 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-10-24 10:26:16,521 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2021-10-24 10:26:16,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:26:16,548 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:26:16,581 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 26 [2021-10-24 10:26:16,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:26:16,727 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:26:16,727 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1870279741] [2021-10-24 10:26:16,727 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1870279741] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:26:16,728 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:26:16,728 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-24 10:26:16,728 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403082092] [2021-10-24 10:26:16,728 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-24 10:26:16,728 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:26:16,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-24 10:26:16,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-24 10:26:16,729 INFO L87 Difference]: Start difference. First operand 67 states and 73 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:26:16,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:26:16,993 INFO L93 Difference]: Finished difference Result 61 states and 63 transitions. [2021-10-24 10:26:16,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 10:26:16,993 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-10-24 10:26:16,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:26:16,994 INFO L225 Difference]: With dead ends: 61 [2021-10-24 10:26:16,994 INFO L226 Difference]: Without dead ends: 61 [2021-10-24 10:26:16,995 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 86.6ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-24 10:26:16,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2021-10-24 10:26:16,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2021-10-24 10:26:16,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 43 states have (on average 1.4651162790697674) internal successors, (63), 60 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:26:16,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 63 transitions. [2021-10-24 10:26:16,998 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 63 transitions. Word has length 18 [2021-10-24 10:26:16,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:26:16,999 INFO L470 AbstractCegarLoop]: Abstraction has 61 states and 63 transitions. [2021-10-24 10:26:16,999 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:26:16,999 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 63 transitions. [2021-10-24 10:26:17,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-24 10:26:17,000 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:26:17,000 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:26:17,011 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-24 10:26:17,210 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:26:17,211 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 37 more)] === [2021-10-24 10:26:17,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:26:17,211 INFO L82 PathProgramCache]: Analyzing trace with hash -1281539337, now seen corresponding path program 1 times [2021-10-24 10:26:17,212 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:26:17,212 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1011180775] [2021-10-24 10:26:17,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:26:17,212 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:26:17,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:26:17,213 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:26:17,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-24 10:26:17,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:26:17,368 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-24 10:26:17,370 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:26:17,544 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-10-24 10:26:17,594 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-10-24 10:26:17,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:26:17,609 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:26:17,658 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 24 [2021-10-24 10:26:17,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:26:17,794 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:26:17,794 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1011180775] [2021-10-24 10:26:17,794 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1011180775] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:26:17,794 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:26:17,794 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-24 10:26:17,794 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671025126] [2021-10-24 10:26:17,795 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-24 10:26:17,795 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:26:17,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-24 10:26:17,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-24 10:26:17,795 INFO L87 Difference]: Start difference. First operand 61 states and 63 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:26:17,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:26:17,996 INFO L93 Difference]: Finished difference Result 60 states and 62 transitions. [2021-10-24 10:26:17,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-24 10:26:17,997 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-10-24 10:26:17,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:26:17,997 INFO L225 Difference]: With dead ends: 60 [2021-10-24 10:26:17,997 INFO L226 Difference]: Without dead ends: 60 [2021-10-24 10:26:17,998 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 75.2ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-24 10:26:17,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2021-10-24 10:26:18,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2021-10-24 10:26:18,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 43 states have (on average 1.441860465116279) internal successors, (62), 59 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:26:18,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 62 transitions. [2021-10-24 10:26:18,001 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 62 transitions. Word has length 19 [2021-10-24 10:26:18,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:26:18,001 INFO L470 AbstractCegarLoop]: Abstraction has 60 states and 62 transitions. [2021-10-24 10:26:18,001 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:26:18,002 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 62 transitions. [2021-10-24 10:26:18,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-24 10:26:18,002 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:26:18,002 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:26:18,012 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-24 10:26:18,210 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:26:18,211 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 37 more)] === [2021-10-24 10:26:18,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:26:18,211 INFO L82 PathProgramCache]: Analyzing trace with hash -1073013687, now seen corresponding path program 1 times [2021-10-24 10:26:18,211 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:26:18,212 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1086106530] [2021-10-24 10:26:18,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:26:18,212 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:26:18,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:26:18,213 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:26:18,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-24 10:26:18,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:26:18,386 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-24 10:26:18,388 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:26:18,638 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-10-24 10:26:18,754 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2021-10-24 10:26:18,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:26:18,798 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:26:18,887 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 24 [2021-10-24 10:26:19,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:26:19,083 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:26:19,083 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1086106530] [2021-10-24 10:26:19,083 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1086106530] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:26:19,083 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:26:19,083 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 8 [2021-10-24 10:26:19,083 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826758526] [2021-10-24 10:26:19,084 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-24 10:26:19,084 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:26:19,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-24 10:26:19,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-10-24 10:26:19,084 INFO L87 Difference]: Start difference. First operand 60 states and 62 transitions. Second operand has 9 states, 8 states have (on average 5.0) internal successors, (40), 9 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:26:19,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:26:19,599 INFO L93 Difference]: Finished difference Result 59 states and 61 transitions. [2021-10-24 10:26:19,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-24 10:26:19,600 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.0) internal successors, (40), 9 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-10-24 10:26:19,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:26:19,601 INFO L225 Difference]: With dead ends: 59 [2021-10-24 10:26:19,601 INFO L226 Difference]: Without dead ends: 59 [2021-10-24 10:26:19,601 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 247.4ms TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2021-10-24 10:26:19,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2021-10-24 10:26:19,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2021-10-24 10:26:19,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 43 states have (on average 1.4186046511627908) internal successors, (61), 58 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:26:19,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 61 transitions. [2021-10-24 10:26:19,604 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 61 transitions. Word has length 20 [2021-10-24 10:26:19,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:26:19,604 INFO L470 AbstractCegarLoop]: Abstraction has 59 states and 61 transitions. [2021-10-24 10:26:19,604 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.0) internal successors, (40), 9 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:26:19,604 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 61 transitions. [2021-10-24 10:26:19,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-24 10:26:19,605 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:26:19,605 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:26:19,621 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-24 10:26:19,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:26:19,812 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 37 more)] === [2021-10-24 10:26:19,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:26:19,813 INFO L82 PathProgramCache]: Analyzing trace with hash -1388841298, now seen corresponding path program 1 times [2021-10-24 10:26:19,813 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:26:19,813 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [207731925] [2021-10-24 10:26:19,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:26:19,813 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:26:19,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:26:19,814 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:26:19,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-10-24 10:26:20,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:26:20,039 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-24 10:26:20,040 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:26:20,136 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-24 10:26:20,254 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2021-10-24 10:26:20,306 INFO L354 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size [2021-10-24 10:26:20,306 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 25 [2021-10-24 10:26:20,429 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-24 10:26:20,430 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 25 [2021-10-24 10:26:20,539 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22 [2021-10-24 10:26:20,592 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:26:20,592 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:26:20,782 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 36 [2021-10-24 10:26:21,118 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:26:21,118 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:26:21,119 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [207731925] [2021-10-24 10:26:21,119 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [207731925] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-24 10:26:21,119 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1135048878] [2021-10-24 10:26:21,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:26:21,119 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-24 10:26:21,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/cvc4 [2021-10-24 10:26:21,128 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-24 10:26:21,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2021-10-24 10:26:21,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:26:21,456 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-24 10:26:21,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:26:21,561 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2021-10-24 10:26:21,740 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2021-10-24 10:26:21,826 INFO L354 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size [2021-10-24 10:26:21,827 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 25 [2021-10-24 10:26:22,013 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-24 10:26:22,013 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 27 [2021-10-24 10:26:22,184 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-10-24 10:26:22,184 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 27 [2021-10-24 10:26:22,223 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:26:22,223 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:26:22,356 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 36 [2021-10-24 10:26:22,495 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-10-24 10:26:22,495 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 32 [2021-10-24 10:26:22,575 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2021-10-24 10:26:22,583 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:26:22,583 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1135048878] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-24 10:26:22,583 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2055136867] [2021-10-24 10:26:22,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:26:22,584 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 10:26:22,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 10:26:22,585 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-24 10:26:22,585 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-10-24 10:26:22,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:26:22,821 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-24 10:26:22,823 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:26:22,921 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2021-10-24 10:26:22,971 INFO L354 Elim1Store]: treesize reduction 27, result has 43.8 percent of original size [2021-10-24 10:26:22,971 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 39 [2021-10-24 10:26:23,189 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-24 10:26:23,190 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 31 [2021-10-24 10:26:23,334 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 29 [2021-10-24 10:26:23,415 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:26:23,415 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:26:29,969 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 57 [2021-10-24 10:26:48,740 INFO L354 Elim1Store]: treesize reduction 18, result has 28.0 percent of original size [2021-10-24 10:26:48,740 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 81 treesize of output 79 [2021-10-24 10:26:48,868 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:26:48,868 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2055136867] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-24 10:26:48,868 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-24 10:26:48,869 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9, 8, 8, 8] total 27 [2021-10-24 10:26:48,869 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432367605] [2021-10-24 10:26:48,869 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-10-24 10:26:48,869 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:26:48,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-10-24 10:26:48,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=651, Unknown=11, NotChecked=0, Total=756 [2021-10-24 10:26:48,871 INFO L87 Difference]: Start difference. First operand 59 states and 61 transitions. Second operand has 28 states, 27 states have (on average 2.4074074074074074) internal successors, (65), 28 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:26:55,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:26:55,364 INFO L93 Difference]: Finished difference Result 75 states and 78 transitions. [2021-10-24 10:26:55,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-24 10:26:55,365 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 2.4074074074074074) internal successors, (65), 28 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-10-24 10:26:55,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:26:55,366 INFO L225 Difference]: With dead ends: 75 [2021-10-24 10:26:55,366 INFO L226 Difference]: Without dead ends: 75 [2021-10-24 10:26:55,367 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 77 SyntacticMatches, 11 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 400 ImplicationChecksByTransitivity, 26823.4ms TimeCoverageRelationStatistics Valid=310, Invalid=1085, Unknown=11, NotChecked=0, Total=1406 [2021-10-24 10:26:55,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2021-10-24 10:26:55,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 58. [2021-10-24 10:26:55,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 43 states have (on average 1.3953488372093024) internal successors, (60), 57 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:26:55,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 60 transitions. [2021-10-24 10:26:55,369 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 60 transitions. Word has length 20 [2021-10-24 10:26:55,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:26:55,370 INFO L470 AbstractCegarLoop]: Abstraction has 58 states and 60 transitions. [2021-10-24 10:26:55,370 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 2.4074074074074074) internal successors, (65), 28 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:26:55,370 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 60 transitions. [2021-10-24 10:26:55,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-24 10:26:55,371 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:26:55,371 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:26:55,378 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2021-10-24 10:26:55,584 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-10-24 10:26:55,794 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-10-24 10:26:55,974 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 10:26:55,974 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 37 more)] === [2021-10-24 10:26:55,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:26:55,975 INFO L82 PathProgramCache]: Analyzing trace with hash -1388841297, now seen corresponding path program 1 times [2021-10-24 10:26:55,975 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:26:55,975 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1062778612] [2021-10-24 10:26:55,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:26:55,975 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:26:55,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:26:55,977 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:26:56,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-10-24 10:26:56,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:26:56,350 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 26 conjunts are in the unsatisfiable core [2021-10-24 10:26:56,352 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:26:56,374 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-24 10:26:56,390 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-24 10:26:56,591 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-10-24 10:26:56,591 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 27 [2021-10-24 10:26:56,608 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-24 10:26:56,608 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 24 [2021-10-24 10:26:56,826 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 30 [2021-10-24 10:26:56,848 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-10-24 10:26:56,987 INFO L354 Elim1Store]: treesize reduction 52, result has 22.4 percent of original size [2021-10-24 10:26:56,987 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 34 [2021-10-24 10:26:57,014 INFO L354 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2021-10-24 10:26:57,015 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 21 [2021-10-24 10:26:57,204 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-24 10:26:57,205 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 55 treesize of output 46 [2021-10-24 10:26:57,228 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-24 10:26:57,228 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 46 [2021-10-24 10:26:57,444 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-10-24 10:26:57,445 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 66 treesize of output 50 [2021-10-24 10:26:57,452 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-10-24 10:26:57,453 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 24 [2021-10-24 10:26:57,513 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:26:57,513 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:26:58,594 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 107 treesize of output 103 [2021-10-24 10:26:58,598 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 152 treesize of output 136 [2021-10-24 10:27:00,732 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_append_~item~0.base_32 (_ BitVec 32))) (or (let ((.cse0 (bvadd c_ULTIMATE.start_append_~item~0.offset (_ bv8 32)))) (and (bvule (bvadd c_ULTIMATE.start_append_~item~0.offset (_ bv4 32)) .cse0) (= |c_ULTIMATE.start_main_~#list~0.offset| c_ULTIMATE.start_append_~plist.offset) (= c_ULTIMATE.start_append_~plist.base |c_ULTIMATE.start_main_~#list~0.base|) (bvule .cse0 (select (store |c_#length| v_ULTIMATE.start_append_~item~0.base_32 (_ bv8 32)) c_ULTIMATE.start_append_~item~0.base)))) (not (= (_ bv0 1) (bvneg (bvneg (select |c_#valid| v_ULTIMATE.start_append_~item~0.base_32))))))) is different from false [2021-10-24 10:27:00,842 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-10-24 10:27:00,843 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 41 [2021-10-24 10:27:03,398 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_append_#t~ite11.base_40| (_ BitVec 32)) (v_ULTIMATE.start_append_~item~0.base_32 (_ BitVec 32))) (or (= c_ULTIMATE.start_append_~item~0.base v_ULTIMATE.start_append_~item~0.base_32) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_append_#t~ite11.base_40|))) (let ((.cse0 (bvadd c_ULTIMATE.start_append_~item~0.offset (_ bv8 32)))) (and (bvule (bvadd c_ULTIMATE.start_append_~item~0.offset (_ bv4 32)) .cse0) (= |c_ULTIMATE.start_main_~#list~0.offset| c_ULTIMATE.start_append_~plist.offset) (= c_ULTIMATE.start_append_~plist.base |c_ULTIMATE.start_main_~#list~0.base|) (bvule .cse0 (select (store (store |c_#length| |v_ULTIMATE.start_append_#t~ite11.base_40| (_ bv8 32)) v_ULTIMATE.start_append_~item~0.base_32 (_ bv8 32)) c_ULTIMATE.start_append_~item~0.base)))))) is different from false [2021-10-24 10:27:04,563 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 5 not checked. [2021-10-24 10:27:04,563 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:27:04,563 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1062778612] [2021-10-24 10:27:04,563 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1062778612] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-24 10:27:04,563 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1887963035] [2021-10-24 10:27:04,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:27:04,563 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-24 10:27:04,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/cvc4 [2021-10-24 10:27:04,567 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-24 10:27:04,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2021-10-24 10:27:05,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:27:05,020 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 26 conjunts are in the unsatisfiable core [2021-10-24 10:27:05,021 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:27:05,101 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-24 10:27:05,111 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-24 10:27:05,341 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-10-24 10:27:05,341 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2021-10-24 10:27:05,355 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-24 10:27:05,355 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 25 [2021-10-24 10:27:05,674 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-10-24 10:27:05,682 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 30 [2021-10-24 10:27:05,883 INFO L354 Elim1Store]: treesize reduction 52, result has 22.4 percent of original size [2021-10-24 10:27:05,885 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 34 [2021-10-24 10:27:05,917 INFO L354 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2021-10-24 10:27:05,917 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 21 [2021-10-24 10:27:06,228 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-24 10:27:06,229 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 55 treesize of output 46 [2021-10-24 10:27:06,259 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-24 10:27:06,260 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 46 [2021-10-24 10:27:06,504 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-10-24 10:27:06,504 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 66 treesize of output 46 [2021-10-24 10:27:06,521 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-10-24 10:27:06,522 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 24 [2021-10-24 10:27:06,535 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:27:06,535 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:27:08,110 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 107 treesize of output 103 [2021-10-24 10:27:08,114 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 152 treesize of output 136 [2021-10-24 10:27:08,332 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-10-24 10:27:08,332 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 41 [2021-10-24 10:27:18,258 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:27:18,258 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1887963035] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-24 10:27:18,258 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [293864772] [2021-10-24 10:27:18,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:27:18,258 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 10:27:18,258 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 10:27:18,259 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-24 10:27:18,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-10-24 10:27:18,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:27:18,622 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 22 conjunts are in the unsatisfiable core [2021-10-24 10:27:18,623 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:27:18,960 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 21 [2021-10-24 10:27:18,974 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-10-24 10:27:21,162 INFO L354 Elim1Store]: treesize reduction 19, result has 47.2 percent of original size [2021-10-24 10:27:21,162 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 26 [2021-10-24 10:27:21,210 INFO L354 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2021-10-24 10:27:21,210 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 26 [2021-10-24 10:27:21,595 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-24 10:27:21,595 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 55 treesize of output 46 [2021-10-24 10:27:21,622 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-24 10:27:21,622 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 46 [2021-10-24 10:27:21,897 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-10-24 10:27:21,898 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 66 treesize of output 50 [2021-10-24 10:27:21,914 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-10-24 10:27:21,915 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 24 [2021-10-24 10:27:22,072 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:27:22,073 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:27:24,628 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 107 treesize of output 103 [2021-10-24 10:27:24,631 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 152 treesize of output 136 [2021-10-24 10:27:24,829 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 58 [2021-10-24 10:27:24,856 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-10-24 10:27:24,856 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 57 [2021-10-24 10:27:27,203 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:27:27,203 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [293864772] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-24 10:27:27,203 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-24 10:27:27,203 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 10, 9, 8, 8] total 34 [2021-10-24 10:27:27,203 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77602007] [2021-10-24 10:27:27,204 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2021-10-24 10:27:27,204 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:27:27,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-10-24 10:27:27,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=915, Unknown=8, NotChecked=126, Total=1190 [2021-10-24 10:27:27,205 INFO L87 Difference]: Start difference. First operand 58 states and 60 transitions. Second operand has 35 states, 34 states have (on average 2.5588235294117645) internal successors, (87), 35 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:27:34,042 WARN L207 SmtUtils]: Spent 5.49 s on a formula simplification. DAG size of input: 95 DAG size of output: 52 [2021-10-24 10:27:51,226 WARN L207 SmtUtils]: Spent 6.50 s on a formula simplification. DAG size of input: 91 DAG size of output: 51 [2021-10-24 10:27:59,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:27:59,657 INFO L93 Difference]: Finished difference Result 77 states and 80 transitions. [2021-10-24 10:27:59,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-24 10:27:59,659 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 34 states have (on average 2.5588235294117645) internal successors, (87), 35 states have internal predecessors, (87), 0 states have call successors, (0), 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 20 [2021-10-24 10:27:59,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:27:59,660 INFO L225 Difference]: With dead ends: 77 [2021-10-24 10:27:59,660 INFO L226 Difference]: Without dead ends: 77 [2021-10-24 10:27:59,661 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 79 SyntacticMatches, 4 SemanticMatches, 45 ConstructedPredicates, 2 IntricatePredicates, 3 DeprecatedPredicates, 482 ImplicationChecksByTransitivity, 50852.7ms TimeCoverageRelationStatistics Valid=430, Invalid=1550, Unknown=8, NotChecked=174, Total=2162 [2021-10-24 10:27:59,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2021-10-24 10:27:59,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 57. [2021-10-24 10:27:59,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 43 states have (on average 1.372093023255814) internal successors, (59), 56 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:27:59,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 59 transitions. [2021-10-24 10:27:59,664 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 59 transitions. Word has length 20 [2021-10-24 10:27:59,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:27:59,664 INFO L470 AbstractCegarLoop]: Abstraction has 57 states and 59 transitions. [2021-10-24 10:27:59,665 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 34 states have (on average 2.5588235294117645) internal successors, (87), 35 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:27:59,665 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 59 transitions. [2021-10-24 10:27:59,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-24 10:27:59,666 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:27:59,666 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:27:59,679 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (15)] Ended with exit code 0 [2021-10-24 10:27:59,880 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt (16)] Ended with exit code 0 [2021-10-24 10:28:00,099 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-10-24 10:28:00,278 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 10:28:00,278 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 37 more)] === [2021-10-24 10:28:00,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:28:00,279 INFO L82 PathProgramCache]: Analyzing trace with hash 1096314169, now seen corresponding path program 1 times [2021-10-24 10:28:00,279 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:28:00,279 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1295695502] [2021-10-24 10:28:00,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:28:00,280 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:28:00,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:28:00,281 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:28:00,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-10-24 10:28:00,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:28:00,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-24 10:28:00,659 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:28:00,775 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2021-10-24 10:28:00,825 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2021-10-24 10:28:00,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:28:00,851 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:28:00,907 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 36 [2021-10-24 10:28:01,053 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-10-24 10:28:01,054 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 35 [2021-10-24 10:28:01,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:28:01,150 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:28:01,150 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1295695502] [2021-10-24 10:28:01,151 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1295695502] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:28:01,151 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:28:01,151 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 6 [2021-10-24 10:28:01,151 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640301227] [2021-10-24 10:28:01,151 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-24 10:28:01,151 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:28:01,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-24 10:28:01,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-24 10:28:01,152 INFO L87 Difference]: Start difference. First operand 57 states and 59 transitions. Second operand has 7 states, 6 states have (on average 4.0) internal successors, (24), 7 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:28:01,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:28:01,576 INFO L93 Difference]: Finished difference Result 56 states and 58 transitions. [2021-10-24 10:28:01,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-24 10:28:01,577 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.0) internal successors, (24), 7 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-10-24 10:28:01,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:28:01,578 INFO L225 Difference]: With dead ends: 56 [2021-10-24 10:28:01,578 INFO L226 Difference]: Without dead ends: 56 [2021-10-24 10:28:01,578 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 34 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 157.4ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-24 10:28:01,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2021-10-24 10:28:01,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2021-10-24 10:28:01,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 43 states have (on average 1.3488372093023255) internal successors, (58), 55 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:28:01,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 58 transitions. [2021-10-24 10:28:01,580 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 58 transitions. Word has length 21 [2021-10-24 10:28:01,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:28:01,580 INFO L470 AbstractCegarLoop]: Abstraction has 56 states and 58 transitions. [2021-10-24 10:28:01,580 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.0) internal successors, (24), 7 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:28:01,581 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 58 transitions. [2021-10-24 10:28:01,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-24 10:28:01,581 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:28:01,581 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:28:01,598 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-10-24 10:28:01,782 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:28:01,782 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr25REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 37 more)] === [2021-10-24 10:28:01,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:28:01,782 INFO L82 PathProgramCache]: Analyzing trace with hash -373999028, now seen corresponding path program 1 times [2021-10-24 10:28:01,783 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:28:01,783 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [539866079] [2021-10-24 10:28:01,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:28:01,783 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:28:01,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:28:01,784 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:28:01,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-10-24 10:28:02,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:28:02,178 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-24 10:28:02,180 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:28:02,186 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-24 10:28:02,221 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-24 10:28:02,221 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 16 [2021-10-24 10:28:02,309 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-24 10:28:02,403 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-10-24 10:28:02,504 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2021-10-24 10:28:02,576 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-10-24 10:28:02,576 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 26 [2021-10-24 10:28:02,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:28:02,622 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:28:02,737 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 26 [2021-10-24 10:28:02,865 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 16 [2021-10-24 10:28:02,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:28:02,974 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:28:02,974 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [539866079] [2021-10-24 10:28:02,974 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [539866079] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:28:02,974 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:28:02,975 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 8 [2021-10-24 10:28:02,975 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730689314] [2021-10-24 10:28:02,975 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-24 10:28:02,975 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:28:02,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-24 10:28:02,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-10-24 10:28:02,976 INFO L87 Difference]: Start difference. First operand 56 states and 58 transitions. Second operand has 9 states, 8 states have (on average 3.5) internal successors, (28), 9 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:28:19,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:28:19,681 INFO L93 Difference]: Finished difference Result 71 states and 76 transitions. [2021-10-24 10:28:19,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-24 10:28:19,682 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.5) internal successors, (28), 9 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-10-24 10:28:19,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:28:19,682 INFO L225 Difference]: With dead ends: 71 [2021-10-24 10:28:19,683 INFO L226 Difference]: Without dead ends: 71 [2021-10-24 10:28:19,683 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 32 SyntacticMatches, 3 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 449.0ms TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2021-10-24 10:28:19,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2021-10-24 10:28:19,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 55. [2021-10-24 10:28:19,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 43 states have (on average 1.3255813953488371) internal successors, (57), 54 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:28:19,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 57 transitions. [2021-10-24 10:28:19,685 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 57 transitions. Word has length 22 [2021-10-24 10:28:19,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:28:19,686 INFO L470 AbstractCegarLoop]: Abstraction has 55 states and 57 transitions. [2021-10-24 10:28:19,686 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.5) internal successors, (28), 9 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:28:19,686 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 57 transitions. [2021-10-24 10:28:19,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-24 10:28:19,687 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:28:19,687 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:28:19,696 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (19)] Ended with exit code 0 [2021-10-24 10:28:19,890 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:28:19,890 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr26REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 37 more)] === [2021-10-24 10:28:19,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:28:19,891 INFO L82 PathProgramCache]: Analyzing trace with hash -373999027, now seen corresponding path program 1 times [2021-10-24 10:28:19,891 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:28:19,891 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [238773575] [2021-10-24 10:28:19,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:28:19,891 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:28:19,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:28:19,892 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:28:19,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-10-24 10:28:20,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:28:20,306 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-24 10:28:20,307 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:28:20,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:28:20,487 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:28:20,641 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2021-10-24 10:28:20,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:28:20,722 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:28:20,722 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [238773575] [2021-10-24 10:28:20,722 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [238773575] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:28:20,722 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:28:20,722 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-10-24 10:28:20,722 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171137755] [2021-10-24 10:28:20,723 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-24 10:28:20,723 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:28:20,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-24 10:28:20,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-10-24 10:28:20,723 INFO L87 Difference]: Start difference. First operand 55 states and 57 transitions. Second operand has 6 states, 5 states have (on average 8.6) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:28:20,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:28:20,823 INFO L93 Difference]: Finished difference Result 50 states and 52 transitions. [2021-10-24 10:28:20,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:28:20,823 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 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 22 [2021-10-24 10:28:20,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:28:20,824 INFO L225 Difference]: With dead ends: 50 [2021-10-24 10:28:20,824 INFO L226 Difference]: Without dead ends: 50 [2021-10-24 10:28:20,824 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 58.2ms TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-10-24 10:28:20,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-10-24 10:28:20,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2021-10-24 10:28:20,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 43 states have (on average 1.2093023255813953) internal successors, (52), 49 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:28:20,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 52 transitions. [2021-10-24 10:28:20,826 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 52 transitions. Word has length 22 [2021-10-24 10:28:20,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:28:20,827 INFO L470 AbstractCegarLoop]: Abstraction has 50 states and 52 transitions. [2021-10-24 10:28:20,827 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:28:20,827 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 52 transitions. [2021-10-24 10:28:20,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-24 10:28:20,828 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:28:20,828 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:28:20,838 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2021-10-24 10:28:21,034 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:28:21,035 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 37 more)] === [2021-10-24 10:28:21,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:28:21,035 INFO L82 PathProgramCache]: Analyzing trace with hash 1020122834, now seen corresponding path program 1 times [2021-10-24 10:28:21,035 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:28:21,035 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2001677694] [2021-10-24 10:28:21,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:28:21,036 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:28:21,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:28:21,037 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:28:21,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-10-24 10:28:21,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-24 10:28:21,504 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-24 10:28:21,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-24 10:28:21,639 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-24 10:28:21,639 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-24 10:28:21,640 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:28:21,642 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATION [2021-10-24 10:28:21,643 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATION [2021-10-24 10:28:21,643 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATION [2021-10-24 10:28:21,643 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATION [2021-10-24 10:28:21,643 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATION [2021-10-24 10:28:21,643 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATION [2021-10-24 10:28:21,644 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATION [2021-10-24 10:28:21,644 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATION [2021-10-24 10:28:21,644 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATION [2021-10-24 10:28:21,644 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATION [2021-10-24 10:28:21,644 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATION [2021-10-24 10:28:21,644 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATION [2021-10-24 10:28:21,645 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATION [2021-10-24 10:28:21,645 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATION [2021-10-24 10:28:21,645 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATION [2021-10-24 10:28:21,645 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATION [2021-10-24 10:28:21,645 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16REQUIRES_VIOLATION [2021-10-24 10:28:21,645 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17REQUIRES_VIOLATION [2021-10-24 10:28:21,646 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18REQUIRES_VIOLATION [2021-10-24 10:28:21,646 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19REQUIRES_VIOLATION [2021-10-24 10:28:21,646 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20REQUIRES_VIOLATION [2021-10-24 10:28:21,646 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21REQUIRES_VIOLATION [2021-10-24 10:28:21,646 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE [2021-10-24 10:28:21,646 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_FREE [2021-10-24 10:28:21,647 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE [2021-10-24 10:28:21,647 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25REQUIRES_VIOLATION [2021-10-24 10:28:21,647 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26REQUIRES_VIOLATION [2021-10-24 10:28:21,647 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27REQUIRES_VIOLATION [2021-10-24 10:28:21,647 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28REQUIRES_VIOLATION [2021-10-24 10:28:21,647 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29REQUIRES_VIOLATION [2021-10-24 10:28:21,648 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30REQUIRES_VIOLATION [2021-10-24 10:28:21,648 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31REQUIRES_VIOLATION [2021-10-24 10:28:21,648 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32REQUIRES_VIOLATION [2021-10-24 10:28:21,648 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr33REQUIRES_VIOLATION [2021-10-24 10:28:21,648 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr34REQUIRES_VIOLATION [2021-10-24 10:28:21,648 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_FREE [2021-10-24 10:28:21,649 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE [2021-10-24 10:28:21,649 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE [2021-10-24 10:28:21,649 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr38REQUIRES_VIOLATION [2021-10-24 10:28:21,649 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr39REQUIRES_VIOLATION [2021-10-24 10:28:21,669 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2021-10-24 10:28:21,857 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:28:21,864 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-24 10:28:21,896 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 10:28:21 BoogieIcfgContainer [2021-10-24 10:28:21,897 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-24 10:28:21,897 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-24 10:28:21,897 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-24 10:28:21,898 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-24 10:28:21,898 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:25:53" (3/4) ... [2021-10-24 10:28:21,901 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-24 10:28:21,901 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-24 10:28:21,902 INFO L168 Benchmark]: Toolchain (without parser) took 149360.10 ms. Allocated memory was 83.9 MB in the beginning and 117.4 MB in the end (delta: 33.6 MB). Free memory was 59.6 MB in the beginning and 29.5 MB in the end (delta: 30.1 MB). Peak memory consumption was 63.4 MB. Max. memory is 16.1 GB. [2021-10-24 10:28:21,902 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 50.3 MB. Free memory is still 29.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 10:28:21,903 INFO L168 Benchmark]: CACSL2BoogieTranslator took 491.00 ms. Allocated memory is still 83.9 MB. Free memory was 59.4 MB in the beginning and 59.3 MB in the end (delta: 151.3 kB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-24 10:28:21,903 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.16 ms. Allocated memory is still 83.9 MB. Free memory was 59.3 MB in the beginning and 57.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-24 10:28:21,903 INFO L168 Benchmark]: Boogie Preprocessor took 32.47 ms. Allocated memory is still 83.9 MB. Free memory was 57.3 MB in the beginning and 55.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-24 10:28:21,904 INFO L168 Benchmark]: RCFGBuilder took 691.53 ms. Allocated memory is still 83.9 MB. Free memory was 55.6 MB in the beginning and 60.9 MB in the end (delta: -5.3 MB). Peak memory consumption was 19.5 MB. Max. memory is 16.1 GB. [2021-10-24 10:28:21,904 INFO L168 Benchmark]: TraceAbstraction took 148076.41 ms. Allocated memory was 83.9 MB in the beginning and 117.4 MB in the end (delta: 33.6 MB). Free memory was 60.4 MB in the beginning and 29.5 MB in the end (delta: 30.9 MB). Peak memory consumption was 63.8 MB. Max. memory is 16.1 GB. [2021-10-24 10:28:21,904 INFO L168 Benchmark]: Witness Printer took 4.01 ms. Allocated memory is still 117.4 MB. Free memory is still 29.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 10:28:21,906 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 50.3 MB. Free memory is still 29.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 491.00 ms. Allocated memory is still 83.9 MB. Free memory was 59.4 MB in the beginning and 59.3 MB in the end (delta: 151.3 kB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 58.16 ms. Allocated memory is still 83.9 MB. Free memory was 59.3 MB in the beginning and 57.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 32.47 ms. Allocated memory is still 83.9 MB. Free memory was 57.3 MB in the beginning and 55.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 691.53 ms. Allocated memory is still 83.9 MB. Free memory was 55.6 MB in the beginning and 60.9 MB in the end (delta: -5.3 MB). Peak memory consumption was 19.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 148076.41 ms. Allocated memory was 83.9 MB in the beginning and 117.4 MB in the end (delta: 33.6 MB). Free memory was 60.4 MB in the beginning and 29.5 MB in the end (delta: 30.9 MB). Peak memory consumption was 63.8 MB. Max. memory is 16.1 GB. * Witness Printer took 4.01 ms. Allocated memory is still 117.4 MB. Free memory is still 29.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 537]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 537. Possible FailurePath: [L539] struct item *list = ((void *)0); [L530] struct item *item = malloc(sizeof *item); [L531] EXPR \read(**plist) [L531] item->next = *plist [L532] EXPR item->next [L532-L534] EXPR (item->next) ? item->next->data : malloc(sizeof *item) [L532-L534] EXPR (item->next) ? item->next->data : malloc(sizeof *item) [L532-L534] item->data = (item->next) ? item->next->data : malloc(sizeof *item) [L535] *plist = item [L542] COND FALSE !(__VERIFIER_nondet_int()) [L543] \read(*list) [L543] COND TRUE \read(*list) [L544] EXPR \read(*list) [L544] EXPR list->next [L544] struct item *next = list->next; [L545] EXPR \read(*list) [L545] free(list) [L545] free(list) [L545] free(list) [L546] list = next [L548] \read(*list) [L548] COND FALSE !(\read(*list)) [L553] return 0; [L539] struct item *list = ((void *)0); [L553] return 0; - UnprovableResult [Line: 531]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 531]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 531]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 531]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 532]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 532]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 533]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 533]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 533]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 533]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 532]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 532]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 535]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 535]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 543]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 543]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 544]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 544]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 544]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 544]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 545]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 545]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 545]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 545]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 545]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 546]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 546]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 551]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 551]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 80 locations, 41 error locations. Started 1 CEGAR loops. OverallTime: 147965.3ms, OverallIterations: 16, TraceHistogramMax: 2, EmptinessCheckTime: 25.9ms, AutomataDifference: 74005.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 14.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 476 SDtfs, 1945 SDslu, 1147 SDs, 0 SdLazy, 2247 SolverSat, 211 SolverUnsat, 17 SolverUnknown, 0 SolverNotchecked, 42683.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 620 GetRequests, 429 SyntacticMatches, 22 SemanticMatches, 169 ConstructedPredicates, 2 IntricatePredicates, 5 DeprecatedPredicates, 962 ImplicationChecksByTransitivity, 80749.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=80occurred in iteration=0, InterpolantAutomatonStates: 112, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 96.6ms AutomataMinimizationTime, 15 MinimizatonAttempts, 180 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 199.2ms SsaConstructionTime, 1104.7ms SatisfiabilityAnalysisTime, 64742.7ms InterpolantComputationTime, 328 NumberOfCodeBlocks, 328 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 566 ConstructedInterpolants, 84 QuantifiedInterpolants, 8481 SizeOfPredicates, 226 NumberOfNonLiveVariables, 1818 ConjunctsInSsa, 224 ConjunctsInUnsatCore, 38 InterpolantComputations, 26 PerfectInterpolantSequences, 12/72 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 [2021-10-24 10:28:21,959 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2cffb3-9e57-4b28-888c-8c2f4401bde6/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...