./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety/test-0219.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_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/test-0219.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw --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 4a489d3e73f8fa53a32414f65b592ba5db703c103e5e16e188592c7c2dfeab95 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/test-0219.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw --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 4a489d3e73f8fa53a32414f65b592ba5db703c103e5e16e188592c7c2dfeab95 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-20 06:00:47,577 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-20 06:00:47,579 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-20 06:00:47,610 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-20 06:00:47,611 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-20 06:00:47,612 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-20 06:00:47,614 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-20 06:00:47,622 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-20 06:00:47,625 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-20 06:00:47,630 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-20 06:00:47,631 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-20 06:00:47,633 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-20 06:00:47,634 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-20 06:00:47,637 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-20 06:00:47,639 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-20 06:00:47,641 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-20 06:00:47,643 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-20 06:00:47,644 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-20 06:00:47,649 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-20 06:00:47,656 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-20 06:00:47,659 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-20 06:00:47,663 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-20 06:00:47,666 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-20 06:00:47,667 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-20 06:00:47,676 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-20 06:00:47,677 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-20 06:00:47,677 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-20 06:00:47,680 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-20 06:00:47,680 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-20 06:00:47,681 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-20 06:00:47,682 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-20 06:00:47,683 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-20 06:00:47,685 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-20 06:00:47,686 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-20 06:00:47,688 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-20 06:00:47,688 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-20 06:00:47,689 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-20 06:00:47,689 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-20 06:00:47,689 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-20 06:00:47,690 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-20 06:00:47,691 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-20 06:00:47,691 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-10-20 06:00:47,733 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-20 06:00:47,733 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-20 06:00:47,737 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-20 06:00:47,737 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-20 06:00:47,738 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-20 06:00:47,738 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-20 06:00:47,738 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-20 06:00:47,738 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-20 06:00:47,738 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-20 06:00:47,739 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-20 06:00:47,740 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-20 06:00:47,740 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-20 06:00:47,740 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-20 06:00:47,740 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-20 06:00:47,741 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-20 06:00:47,742 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-20 06:00:47,742 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-20 06:00:47,742 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-20 06:00:47,743 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-20 06:00:47,743 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-20 06:00:47,743 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-20 06:00:47,743 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-20 06:00:47,743 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-20 06:00:47,744 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-20 06:00:47,744 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-20 06:00:47,744 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-20 06:00:47,745 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-20 06:00:47,745 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-20 06:00:47,745 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-20 06:00:47,745 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-20 06:00:47,746 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-20 06:00:47,746 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-20 06:00:47,746 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-20 06:00:47,746 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-20 06:00:47,747 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-20 06:00:47,747 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-20 06:00:47,747 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-20 06:00:47,747 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-20 06:00:47,747 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-20 06:00:47,748 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_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4a489d3e73f8fa53a32414f65b592ba5db703c103e5e16e188592c7c2dfeab95 [2021-10-20 06:00:48,026 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-20 06:00:48,053 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-20 06:00:48,056 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-20 06:00:48,057 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-20 06:00:48,058 INFO L275 PluginConnector]: CDTParser initialized [2021-10-20 06:00:48,059 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/../../sv-benchmarks/c/memsafety/test-0219.i [2021-10-20 06:00:48,143 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/data/f40adc7e8/a6fa5687bdb243f5922587e991f48d8f/FLAGfb418a33f [2021-10-20 06:00:48,682 INFO L306 CDTParser]: Found 1 translation units. [2021-10-20 06:00:48,683 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/sv-benchmarks/c/memsafety/test-0219.i [2021-10-20 06:00:48,698 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/data/f40adc7e8/a6fa5687bdb243f5922587e991f48d8f/FLAGfb418a33f [2021-10-20 06:00:48,999 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/data/f40adc7e8/a6fa5687bdb243f5922587e991f48d8f [2021-10-20 06:00:49,001 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-20 06:00:49,002 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-20 06:00:49,007 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-20 06:00:49,007 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-20 06:00:49,015 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-20 06:00:49,015 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:00:49" (1/1) ... [2021-10-20 06:00:49,017 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6581183a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:00:49, skipping insertion in model container [2021-10-20 06:00:49,017 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:00:49" (1/1) ... [2021-10-20 06:00:49,023 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-20 06:00:49,074 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-20 06:00:49,461 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-20 06:00:49,476 INFO L203 MainTranslator]: Completed pre-run [2021-10-20 06:00:49,527 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-20 06:00:49,564 INFO L208 MainTranslator]: Completed translation [2021-10-20 06:00:49,564 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:00:49 WrapperNode [2021-10-20 06:00:49,565 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-20 06:00:49,566 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-20 06:00:49,566 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-20 06:00:49,566 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-20 06:00:49,574 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:00:49" (1/1) ... [2021-10-20 06:00:49,609 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:00:49" (1/1) ... [2021-10-20 06:00:49,649 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-20 06:00:49,649 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-20 06:00:49,649 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-20 06:00:49,649 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-20 06:00:49,657 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:00:49" (1/1) ... [2021-10-20 06:00:49,657 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:00:49" (1/1) ... [2021-10-20 06:00:49,662 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:00:49" (1/1) ... [2021-10-20 06:00:49,662 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:00:49" (1/1) ... [2021-10-20 06:00:49,673 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:00:49" (1/1) ... [2021-10-20 06:00:49,678 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:00:49" (1/1) ... [2021-10-20 06:00:49,681 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:00:49" (1/1) ... [2021-10-20 06:00:49,685 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-20 06:00:49,686 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-20 06:00:49,686 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-20 06:00:49,686 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-20 06:00:49,687 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:00:49" (1/1) ... [2021-10-20 06:00:49,705 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-20 06:00:49,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 [2021-10-20 06:00:49,756 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-20 06:00:49,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-20 06:00:49,839 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-20 06:00:49,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-20 06:00:49,840 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-20 06:00:49,840 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-20 06:00:49,840 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-20 06:00:49,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-20 06:00:49,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-20 06:00:49,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-20 06:00:49,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-20 06:00:50,627 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-20 06:00:50,627 INFO L299 CfgBuilder]: Removed 22 assume(true) statements. [2021-10-20 06:00:50,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:00:50 BoogieIcfgContainer [2021-10-20 06:00:50,630 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-20 06:00:50,632 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-20 06:00:50,632 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-20 06:00:50,636 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-20 06:00:50,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 06:00:49" (1/3) ... [2021-10-20 06:00:50,637 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f0b2a02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 06:00:50, skipping insertion in model container [2021-10-20 06:00:50,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:00:49" (2/3) ... [2021-10-20 06:00:50,638 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f0b2a02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 06:00:50, skipping insertion in model container [2021-10-20 06:00:50,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:00:50" (3/3) ... [2021-10-20 06:00:50,640 INFO L111 eAbstractionObserver]: Analyzing ICFG test-0219.i [2021-10-20 06:00:50,646 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-20 06:00:50,646 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 48 error locations. [2021-10-20 06:00:50,696 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-20 06:00:50,701 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 [2021-10-20 06:00:50,702 INFO L340 AbstractCegarLoop]: Starting to check reachability of 48 error locations. [2021-10-20 06:00:50,717 INFO L276 IsEmpty]: Start isEmpty. Operand has 90 states, 41 states have (on average 2.4146341463414633) internal successors, (99), 89 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:00:50,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-20 06:00:50,723 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 06:00:50,724 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-20 06:00:50,725 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 45 more)] === [2021-10-20 06:00:50,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 06:00:50,730 INFO L82 PathProgramCache]: Analyzing trace with hash 207769, now seen corresponding path program 1 times [2021-10-20 06:00:50,740 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-20 06:00:50,741 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111333244] [2021-10-20 06:00:50,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:00:50,742 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-20 06:00:50,835 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-20 06:00:50,836 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [865108106] [2021-10-20 06:00:50,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:00:50,837 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-20 06:00:50,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 [2021-10-20 06:00:50,838 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-20 06:00:50,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-20 06:00:50,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 06:00:50,939 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-20 06:00:50,943 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 06:00:51,017 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 [2021-10-20 06:00:51,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:00:51,026 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 06:00:51,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:00:51,038 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-20 06:00:51,038 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111333244] [2021-10-20 06:00:51,038 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-20 06:00:51,039 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [865108106] [2021-10-20 06:00:51,039 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [865108106] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 06:00:51,040 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 06:00:51,040 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-20 06:00:51,042 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645194212] [2021-10-20 06:00:51,046 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-20 06:00:51,047 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-20 06:00:51,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-20 06:00:51,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 06:00:51,064 INFO L87 Difference]: Start difference. First operand has 90 states, 41 states have (on average 2.4146341463414633) internal successors, (99), 89 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.5) 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) [2021-10-20 06:00:51,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 06:00:51,189 INFO L93 Difference]: Finished difference Result 113 states and 118 transitions. [2021-10-20 06:00:51,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-20 06:00:51,191 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) 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 [2021-10-20 06:00:51,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 06:00:51,200 INFO L225 Difference]: With dead ends: 113 [2021-10-20 06:00:51,200 INFO L226 Difference]: Without dead ends: 112 [2021-10-20 06:00:51,201 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 06:00:51,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2021-10-20 06:00:51,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 87. [2021-10-20 06:00:51,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 41 states have (on average 2.2439024390243905) internal successors, (92), 86 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:00:51,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 92 transitions. [2021-10-20 06:00:51,237 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 92 transitions. Word has length 3 [2021-10-20 06:00:51,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 06:00:51,238 INFO L470 AbstractCegarLoop]: Abstraction has 87 states and 92 transitions. [2021-10-20 06:00:51,238 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) 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) [2021-10-20 06:00:51,238 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 92 transitions. [2021-10-20 06:00:51,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-20 06:00:51,239 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 06:00:51,239 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-20 06:00:51,270 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-20 06:00:51,458 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-10-20 06:00:51,459 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 45 more)] === [2021-10-20 06:00:51,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 06:00:51,461 INFO L82 PathProgramCache]: Analyzing trace with hash 6440879, now seen corresponding path program 1 times [2021-10-20 06:00:51,461 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-20 06:00:51,461 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885136691] [2021-10-20 06:00:51,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:00:51,462 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-20 06:00:51,483 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-20 06:00:51,485 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1888296156] [2021-10-20 06:00:51,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:00:51,485 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-20 06:00:51,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 [2021-10-20 06:00:51,490 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-20 06:00:51,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-20 06:00:51,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 06:00:51,567 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-20 06:00:51,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 06:00:51,638 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 48 treesize of output 47 [2021-10-20 06:00:52,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:00:52,574 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 06:00:52,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:00:52,693 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-20 06:00:52,693 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885136691] [2021-10-20 06:00:52,693 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-20 06:00:52,694 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1888296156] [2021-10-20 06:00:52,694 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1888296156] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 06:00:52,696 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 06:00:52,699 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-20 06:00:52,699 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361168491] [2021-10-20 06:00:52,701 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-20 06:00:52,701 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-20 06:00:52,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-20 06:00:52,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-20 06:00:52,705 INFO L87 Difference]: Start difference. First operand 87 states and 92 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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) [2021-10-20 06:00:52,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 06:00:52,971 INFO L93 Difference]: Finished difference Result 86 states and 91 transitions. [2021-10-20 06:00:52,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-20 06:00:52,973 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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 [2021-10-20 06:00:52,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 06:00:52,974 INFO L225 Difference]: With dead ends: 86 [2021-10-20 06:00:52,974 INFO L226 Difference]: Without dead ends: 86 [2021-10-20 06:00:52,975 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 80.1ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-20 06:00:52,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2021-10-20 06:00:52,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 85. [2021-10-20 06:00:52,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 41 states have (on average 2.1951219512195124) internal successors, (90), 84 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:00:52,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 90 transitions. [2021-10-20 06:00:52,990 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 90 transitions. Word has length 4 [2021-10-20 06:00:52,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 06:00:52,990 INFO L470 AbstractCegarLoop]: Abstraction has 85 states and 90 transitions. [2021-10-20 06:00:52,991 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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) [2021-10-20 06:00:52,991 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 90 transitions. [2021-10-20 06:00:52,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-20 06:00:52,991 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 06:00:52,992 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 06:00:53,016 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-10-20 06:00:53,216 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-20 06:00:53,216 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 45 more)] === [2021-10-20 06:00:53,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 06:00:53,216 INFO L82 PathProgramCache]: Analyzing trace with hash 1077882261, now seen corresponding path program 1 times [2021-10-20 06:00:53,217 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-20 06:00:53,217 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619235693] [2021-10-20 06:00:53,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:00:53,217 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-20 06:00:53,229 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-20 06:00:53,230 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [147516298] [2021-10-20 06:00:53,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:00:53,230 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-20 06:00:53,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 [2021-10-20 06:00:53,231 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-20 06:00:53,249 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-20 06:00:53,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 06:00:53,324 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-20 06:00:53,327 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 06:00:53,398 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-10-20 06:00:53,401 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 17 treesize of output 21 [2021-10-20 06:00:53,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:00:53,445 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 06:00:53,527 INFO L354 Elim1Store]: treesize reduction 18, result has 28.0 percent of original size [2021-10-20 06:00:53,528 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 26 treesize of output 26 [2021-10-20 06:00:53,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:00:53,545 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-20 06:00:53,545 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619235693] [2021-10-20 06:00:53,545 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-20 06:00:53,546 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [147516298] [2021-10-20 06:00:53,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [147516298] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 06:00:53,546 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 06:00:53,546 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-20 06:00:53,547 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930777661] [2021-10-20 06:00:53,548 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-20 06:00:53,548 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-20 06:00:53,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-20 06:00:53,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-20 06:00:53,552 INFO L87 Difference]: Start difference. First operand 85 states and 90 transitions. Second operand has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 7 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) [2021-10-20 06:00:53,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 06:00:53,824 INFO L93 Difference]: Finished difference Result 111 states and 117 transitions. [2021-10-20 06:00:53,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-20 06:00:53,824 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 7 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 [2021-10-20 06:00:53,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 06:00:53,826 INFO L225 Difference]: With dead ends: 111 [2021-10-20 06:00:53,826 INFO L226 Difference]: Without dead ends: 111 [2021-10-20 06:00:53,827 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 52.4ms TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-10-20 06:00:53,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2021-10-20 06:00:53,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 82. [2021-10-20 06:00:53,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 41 states have (on average 2.1219512195121952) internal successors, (87), 81 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) [2021-10-20 06:00:53,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 87 transitions. [2021-10-20 06:00:53,835 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 87 transitions. Word has length 10 [2021-10-20 06:00:53,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 06:00:53,835 INFO L470 AbstractCegarLoop]: Abstraction has 82 states and 87 transitions. [2021-10-20 06:00:53,836 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 7 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) [2021-10-20 06:00:53,836 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 87 transitions. [2021-10-20 06:00:53,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-20 06:00:53,836 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 06:00:53,836 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 06:00:53,901 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-20 06:00:54,037 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-20 06:00:54,037 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 45 more)] === [2021-10-20 06:00:54,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 06:00:54,038 INFO L82 PathProgramCache]: Analyzing trace with hash 1077882262, now seen corresponding path program 1 times [2021-10-20 06:00:54,038 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-20 06:00:54,039 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878423096] [2021-10-20 06:00:54,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:00:54,039 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-20 06:00:54,052 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-20 06:00:54,052 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [640300756] [2021-10-20 06:00:54,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:00:54,053 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-20 06:00:54,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 [2021-10-20 06:00:54,054 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-20 06:00:54,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-20 06:00:54,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 06:00:54,173 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 26 conjunts are in the unsatisfiable core [2021-10-20 06:00:54,175 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 06:00:54,243 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 48 treesize of output 47 [2021-10-20 06:00:54,770 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-10-20 06:00:54,771 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 81 treesize of output 73 [2021-10-20 06:00:54,786 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-10-20 06:00:54,787 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 73 treesize of output 69 [2021-10-20 06:00:55,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:00:55,036 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 06:00:55,198 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-10-20 06:00:55,199 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 26 [2021-10-20 06:00:55,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:00:55,307 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-20 06:00:55,307 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878423096] [2021-10-20 06:00:55,307 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-20 06:00:55,309 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [640300756] [2021-10-20 06:00:55,309 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [640300756] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 06:00:55,309 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 06:00:55,309 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-10-20 06:00:55,310 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010951678] [2021-10-20 06:00:55,310 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-20 06:00:55,310 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-20 06:00:55,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-20 06:00:55,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-10-20 06:00:55,316 INFO L87 Difference]: Start difference. First operand 82 states and 87 transitions. Second operand has 10 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 10 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) [2021-10-20 06:01:02,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 06:01:02,453 INFO L93 Difference]: Finished difference Result 219 states and 231 transitions. [2021-10-20 06:01:02,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-20 06:01:02,454 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 10 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 10 [2021-10-20 06:01:02,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 06:01:02,456 INFO L225 Difference]: With dead ends: 219 [2021-10-20 06:01:02,456 INFO L226 Difference]: Without dead ends: 219 [2021-10-20 06:01:02,456 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 3087.9ms TimeCoverageRelationStatistics Valid=107, Invalid=235, Unknown=0, NotChecked=0, Total=342 [2021-10-20 06:01:02,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2021-10-20 06:01:02,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 86. [2021-10-20 06:01:02,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 46 states have (on average 2.0434782608695654) internal successors, (94), 85 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:01:02,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 94 transitions. [2021-10-20 06:01:02,468 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 94 transitions. Word has length 10 [2021-10-20 06:01:02,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 06:01:02,469 INFO L470 AbstractCegarLoop]: Abstraction has 86 states and 94 transitions. [2021-10-20 06:01:02,469 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 10 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) [2021-10-20 06:01:02,469 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 94 transitions. [2021-10-20 06:01:02,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-20 06:01:02,470 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 06:01:02,470 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 06:01:02,516 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-20 06:01:02,670 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-20 06:01:02,671 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 45 more)] === [2021-10-20 06:01:02,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 06:01:02,671 INFO L82 PathProgramCache]: Analyzing trace with hash -945537489, now seen corresponding path program 1 times [2021-10-20 06:01:02,671 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-20 06:01:02,672 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720791572] [2021-10-20 06:01:02,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:01:02,672 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-20 06:01:02,684 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-20 06:01:02,684 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [527120740] [2021-10-20 06:01:02,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:01:02,684 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-20 06:01:02,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 [2021-10-20 06:01:02,685 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-20 06:01:02,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-20 06:01:02,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 06:01:02,820 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 25 conjunts are in the unsatisfiable core [2021-10-20 06:01:02,822 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 06:01:02,850 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 15 treesize of output 14 [2021-10-20 06:01:03,081 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-10-20 06:01:03,082 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 41 treesize of output 39 [2021-10-20 06:01:03,094 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-20 06:01:03,094 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 39 treesize of output 39 [2021-10-20 06:01:03,155 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-20 06:01:03,155 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 06:01:03,298 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-10-20 06:01:03,298 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 26 [2021-10-20 06:01:03,386 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-20 06:01:03,387 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-20 06:01:03,387 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720791572] [2021-10-20 06:01:03,387 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-20 06:01:03,388 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [527120740] [2021-10-20 06:01:03,388 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [527120740] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 06:01:03,388 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 06:01:03,388 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-10-20 06:01:03,389 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84425659] [2021-10-20 06:01:03,389 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-20 06:01:03,389 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-20 06:01:03,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-20 06:01:03,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-10-20 06:01:03,391 INFO L87 Difference]: Start difference. First operand 86 states and 94 transitions. Second operand has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 8 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) [2021-10-20 06:01:04,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 06:01:04,795 INFO L93 Difference]: Finished difference Result 114 states and 123 transitions. [2021-10-20 06:01:04,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-20 06:01:04,796 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 8 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 11 [2021-10-20 06:01:04,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 06:01:04,797 INFO L225 Difference]: With dead ends: 114 [2021-10-20 06:01:04,797 INFO L226 Difference]: Without dead ends: 114 [2021-10-20 06:01:04,798 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 1085.5ms TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2021-10-20 06:01:04,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2021-10-20 06:01:04,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 79. [2021-10-20 06:01:04,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 41 states have (on average 2.048780487804878) internal successors, (84), 78 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:01:04,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 84 transitions. [2021-10-20 06:01:04,807 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 84 transitions. Word has length 11 [2021-10-20 06:01:04,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 06:01:04,808 INFO L470 AbstractCegarLoop]: Abstraction has 79 states and 84 transitions. [2021-10-20 06:01:04,808 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 8 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) [2021-10-20 06:01:04,808 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 84 transitions. [2021-10-20 06:01:04,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-20 06:01:04,808 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 06:01:04,808 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 06:01:04,837 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-20 06:01:05,031 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-20 06:01:05,031 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 45 more)] === [2021-10-20 06:01:05,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 06:01:05,031 INFO L82 PathProgramCache]: Analyzing trace with hash 757865649, now seen corresponding path program 1 times [2021-10-20 06:01:05,031 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-20 06:01:05,032 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39894880] [2021-10-20 06:01:05,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:01:05,032 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-20 06:01:05,042 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-20 06:01:05,042 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [451587572] [2021-10-20 06:01:05,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:01:05,043 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-20 06:01:05,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 [2021-10-20 06:01:05,044 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-20 06:01:05,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-20 06:01:05,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 06:01:05,173 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-20 06:01:05,175 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 06:01:05,229 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-10-20 06:01:05,230 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 17 treesize of output 21 [2021-10-20 06:01:05,312 INFO L354 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2021-10-20 06:01:05,313 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 21 treesize of output 26 [2021-10-20 06:01:05,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:01:05,358 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 06:01:05,503 INFO L354 Elim1Store]: treesize reduction 18, result has 28.0 percent of original size [2021-10-20 06:01:05,503 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 26 treesize of output 26 [2021-10-20 06:01:05,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:01:05,515 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-20 06:01:05,515 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39894880] [2021-10-20 06:01:05,516 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-20 06:01:05,516 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [451587572] [2021-10-20 06:01:05,516 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [451587572] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 06:01:05,516 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 06:01:05,516 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-20 06:01:05,516 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797846750] [2021-10-20 06:01:05,518 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-20 06:01:05,518 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-20 06:01:05,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-20 06:01:05,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-10-20 06:01:05,519 INFO L87 Difference]: Start difference. First operand 79 states and 84 transitions. Second operand has 9 states, 8 states have (on average 2.75) internal successors, (22), 9 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:01:05,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 06:01:05,750 INFO L93 Difference]: Finished difference Result 105 states and 111 transitions. [2021-10-20 06:01:05,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-20 06:01:05,750 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 9 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-10-20 06:01:05,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 06:01:05,751 INFO L225 Difference]: With dead ends: 105 [2021-10-20 06:01:05,751 INFO L226 Difference]: Without dead ends: 105 [2021-10-20 06:01:05,752 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 128.1ms TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2021-10-20 06:01:05,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2021-10-20 06:01:05,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 76. [2021-10-20 06:01:05,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 41 states have (on average 1.975609756097561) internal successors, (81), 75 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:01:05,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 81 transitions. [2021-10-20 06:01:05,757 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 81 transitions. Word has length 12 [2021-10-20 06:01:05,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 06:01:05,757 INFO L470 AbstractCegarLoop]: Abstraction has 76 states and 81 transitions. [2021-10-20 06:01:05,758 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 9 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:01:05,758 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 81 transitions. [2021-10-20 06:01:05,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-20 06:01:05,758 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 06:01:05,758 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 06:01:05,796 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-10-20 06:01:05,978 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-20 06:01:05,979 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 45 more)] === [2021-10-20 06:01:05,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 06:01:05,979 INFO L82 PathProgramCache]: Analyzing trace with hash 757865650, now seen corresponding path program 1 times [2021-10-20 06:01:05,979 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-20 06:01:05,980 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523860209] [2021-10-20 06:01:05,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:01:05,980 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-20 06:01:05,987 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-20 06:01:05,988 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1786807470] [2021-10-20 06:01:05,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:01:05,988 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-20 06:01:05,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 [2021-10-20 06:01:06,002 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-20 06:01:06,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-20 06:01:06,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 06:01:06,211 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 40 conjunts are in the unsatisfiable core [2021-10-20 06:01:06,213 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 06:01:06,264 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 48 treesize of output 47 [2021-10-20 06:01:08,396 INFO L354 Elim1Store]: treesize reduction 17, result has 22.7 percent of original size [2021-10-20 06:01:08,397 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 72 treesize of output 66 [2021-10-20 06:01:08,429 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-10-20 06:01:08,429 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 66 treesize of output 70 [2021-10-20 06:01:09,588 INFO L354 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2021-10-20 06:01:09,588 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 80 treesize of output 77 [2021-10-20 06:01:09,604 INFO L354 Elim1Store]: treesize reduction 21, result has 16.0 percent of original size [2021-10-20 06:01:09,604 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 77 treesize of output 75 [2021-10-20 06:01:10,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:01:10,939 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 06:01:11,530 INFO L354 Elim1Store]: treesize reduction 18, result has 28.0 percent of original size [2021-10-20 06:01:11,531 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 43 treesize of output 43 [2021-10-20 06:01:11,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:01:11,831 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-20 06:01:11,831 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523860209] [2021-10-20 06:01:11,831 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-20 06:01:11,831 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1786807470] [2021-10-20 06:01:11,831 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1786807470] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 06:01:11,832 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 06:01:11,832 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2021-10-20 06:01:11,832 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460704161] [2021-10-20 06:01:11,832 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-20 06:01:11,833 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-20 06:01:11,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-20 06:01:11,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2021-10-20 06:01:11,834 INFO L87 Difference]: Start difference. First operand 76 states and 81 transitions. Second operand has 14 states, 13 states have (on average 1.7692307692307692) internal successors, (23), 14 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:01:26,146 WARN L207 SmtUtils]: Spent 6.02 s on a formula simplification. DAG size of input: 150 DAG size of output: 131 [2021-10-20 06:01:32,224 WARN L207 SmtUtils]: Spent 5.13 s on a formula simplification. DAG size of input: 146 DAG size of output: 129 [2021-10-20 06:01:43,405 WARN L207 SmtUtils]: Spent 5.48 s on a formula simplification. DAG size of input: 149 DAG size of output: 134 [2021-10-20 06:02:10,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 06:02:10,796 INFO L93 Difference]: Finished difference Result 296 states and 314 transitions. [2021-10-20 06:02:10,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-20 06:02:10,797 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 1.7692307692307692) internal successors, (23), 14 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-10-20 06:02:10,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 06:02:10,798 INFO L225 Difference]: With dead ends: 296 [2021-10-20 06:02:10,798 INFO L226 Difference]: Without dead ends: 296 [2021-10-20 06:02:10,799 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 35344.9ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-10-20 06:02:10,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2021-10-20 06:02:10,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 86. [2021-10-20 06:02:10,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 52 states have (on average 1.8076923076923077) internal successors, (94), 85 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:02:10,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 94 transitions. [2021-10-20 06:02:10,808 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 94 transitions. Word has length 12 [2021-10-20 06:02:10,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 06:02:10,808 INFO L470 AbstractCegarLoop]: Abstraction has 86 states and 94 transitions. [2021-10-20 06:02:10,809 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 1.7692307692307692) internal successors, (23), 14 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:02:10,809 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 94 transitions. [2021-10-20 06:02:10,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-20 06:02:10,809 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 06:02:10,810 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 06:02:10,852 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-10-20 06:02:11,010 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-20 06:02:11,011 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 45 more)] === [2021-10-20 06:02:11,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 06:02:11,011 INFO L82 PathProgramCache]: Analyzing trace with hash 2137912672, now seen corresponding path program 1 times [2021-10-20 06:02:11,011 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-20 06:02:11,011 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15894590] [2021-10-20 06:02:11,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:02:11,011 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-20 06:02:11,029 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-20 06:02:11,029 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1418346066] [2021-10-20 06:02:11,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:02:11,032 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-20 06:02:11,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 [2021-10-20 06:02:11,034 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-20 06:02:11,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-10-20 06:02:11,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 06:02:11,247 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 39 conjunts are in the unsatisfiable core [2021-10-20 06:02:11,249 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 06:02:11,275 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 10 treesize of output 9 [2021-10-20 06:02:11,371 INFO L354 Elim1Store]: treesize reduction 17, result has 22.7 percent of original size [2021-10-20 06:02:11,372 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 30 treesize of output 32 [2021-10-20 06:02:11,392 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-10-20 06:02:11,393 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 29 treesize of output 33 [2021-10-20 06:02:11,548 INFO L354 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2021-10-20 06:02:11,548 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 38 treesize of output 43 [2021-10-20 06:02:11,567 INFO L354 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2021-10-20 06:02:11,568 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 37 treesize of output 39 [2021-10-20 06:02:11,794 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-20 06:02:11,794 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 06:02:12,310 INFO L354 Elim1Store]: treesize reduction 18, result has 28.0 percent of original size [2021-10-20 06:02:12,311 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 43 treesize of output 43 [2021-10-20 06:02:12,606 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-20 06:02:12,606 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-20 06:02:12,606 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15894590] [2021-10-20 06:02:12,606 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-20 06:02:12,606 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1418346066] [2021-10-20 06:02:12,606 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1418346066] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 06:02:12,606 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 06:02:12,606 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2021-10-20 06:02:12,607 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572609132] [2021-10-20 06:02:12,607 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-20 06:02:12,607 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-20 06:02:12,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-20 06:02:12,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-10-20 06:02:12,609 INFO L87 Difference]: Start difference. First operand 86 states and 94 transitions. Second operand has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:02:13,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 06:02:13,492 INFO L93 Difference]: Finished difference Result 117 states and 127 transitions. [2021-10-20 06:02:13,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-20 06:02:13,492 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-10-20 06:02:13,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 06:02:13,493 INFO L225 Difference]: With dead ends: 117 [2021-10-20 06:02:13,494 INFO L226 Difference]: Without dead ends: 117 [2021-10-20 06:02:13,494 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 419.3ms TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2021-10-20 06:02:13,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2021-10-20 06:02:13,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 73. [2021-10-20 06:02:13,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 41 states have (on average 1.9024390243902438) 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) [2021-10-20 06:02:13,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 78 transitions. [2021-10-20 06:02:13,499 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 78 transitions. Word has length 13 [2021-10-20 06:02:13,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 06:02:13,499 INFO L470 AbstractCegarLoop]: Abstraction has 73 states and 78 transitions. [2021-10-20 06:02:13,499 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:02:13,500 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 78 transitions. [2021-10-20 06:02:13,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-20 06:02:13,500 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 06:02:13,500 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 06:02:13,527 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2021-10-20 06:02:13,706 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-10-20 06:02:13,707 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 45 more)] === [2021-10-20 06:02:13,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 06:02:13,707 INFO L82 PathProgramCache]: Analyzing trace with hash 1271452532, now seen corresponding path program 1 times [2021-10-20 06:02:13,707 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-20 06:02:13,707 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801117819] [2021-10-20 06:02:13,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:02:13,708 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-20 06:02:13,725 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-20 06:02:13,727 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [794511031] [2021-10-20 06:02:13,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:02:13,727 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-20 06:02:13,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 [2021-10-20 06:02:13,728 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-20 06:02:13,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-10-20 06:02:13,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 06:02:13,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 21 conjunts are in the unsatisfiable core [2021-10-20 06:02:13,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 06:02:14,042 INFO L354 Elim1Store]: treesize reduction 83, result has 23.9 percent of original size [2021-10-20 06:02:14,042 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 31 [2021-10-20 06:02:14,243 INFO L354 Elim1Store]: treesize reduction 76, result has 39.2 percent of original size [2021-10-20 06:02:14,243 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 37 treesize of output 76 [2021-10-20 06:02:15,304 INFO L354 Elim1Store]: treesize reduction 122, result has 30.7 percent of original size [2021-10-20 06:02:15,304 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 50 treesize of output 92 [2021-10-20 06:02:16,566 INFO L354 Elim1Store]: treesize reduction 160, result has 31.9 percent of original size [2021-10-20 06:02:16,566 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 21 case distinctions, treesize of input 58 treesize of output 119 [2021-10-20 06:02:19,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:02:19,436 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 06:02:21,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:02:21,808 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-20 06:02:21,808 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801117819] [2021-10-20 06:02:21,808 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-20 06:02:21,808 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [794511031] [2021-10-20 06:02:21,809 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [794511031] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 06:02:21,809 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 06:02:21,809 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 6] imperfect sequences [] total 11 [2021-10-20 06:02:21,809 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169582710] [2021-10-20 06:02:21,809 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-20 06:02:21,809 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-20 06:02:21,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-20 06:02:21,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=105, Unknown=1, NotChecked=0, Total=156 [2021-10-20 06:02:21,810 INFO L87 Difference]: Start difference. First operand 73 states and 78 transitions. Second operand has 13 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 12 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:02:41,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 06:02:41,925 INFO L93 Difference]: Finished difference Result 108 states and 114 transitions. [2021-10-20 06:02:41,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-20 06:02:41,927 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 12 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-10-20 06:02:41,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 06:02:41,928 INFO L225 Difference]: With dead ends: 108 [2021-10-20 06:02:41,928 INFO L226 Difference]: Without dead ends: 108 [2021-10-20 06:02:41,928 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 3660.4ms TimeCoverageRelationStatistics Valid=103, Invalid=168, Unknown=1, NotChecked=0, Total=272 [2021-10-20 06:02:41,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2021-10-20 06:02:41,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 69. [2021-10-20 06:02:41,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 41 states have (on average 1.8048780487804879) internal successors, (74), 68 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) [2021-10-20 06:02:41,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 74 transitions. [2021-10-20 06:02:41,932 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 74 transitions. Word has length 16 [2021-10-20 06:02:41,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 06:02:41,932 INFO L470 AbstractCegarLoop]: Abstraction has 69 states and 74 transitions. [2021-10-20 06:02:41,933 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 12 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:02:41,933 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 74 transitions. [2021-10-20 06:02:41,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-20 06:02:41,934 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 06:02:41,934 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 06:02:41,957 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-10-20 06:02:42,138 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-20 06:02:42,139 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 45 more)] === [2021-10-20 06:02:42,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 06:02:42,139 INFO L82 PathProgramCache]: Analyzing trace with hash 1271452533, now seen corresponding path program 1 times [2021-10-20 06:02:42,139 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-20 06:02:42,139 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024683816] [2021-10-20 06:02:42,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:02:42,139 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-20 06:02:42,149 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-20 06:02:42,149 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [507540135] [2021-10-20 06:02:42,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:02:42,150 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-20 06:02:42,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 [2021-10-20 06:02:42,151 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-20 06:02:42,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-10-20 06:02:42,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 06:02:42,427 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-20 06:02:42,429 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 06:02:42,462 INFO L354 Elim1Store]: treesize reduction 33, result has 40.0 percent of original size [2021-10-20 06:02:42,463 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 27 [2021-10-20 06:02:42,508 INFO L354 Elim1Store]: treesize reduction 17, result has 22.7 percent of original size [2021-10-20 06:02:42,508 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 17 treesize of output 19 [2021-10-20 06:02:44,723 INFO L354 Elim1Store]: treesize reduction 36, result has 29.4 percent of original size [2021-10-20 06:02:44,723 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 31 treesize of output 40 [2021-10-20 06:02:46,965 INFO L354 Elim1Store]: treesize reduction 28, result has 40.4 percent of original size [2021-10-20 06:02:46,965 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 24 treesize of output 37 [2021-10-20 06:02:47,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:02:47,969 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 06:02:48,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:02:48,588 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-20 06:02:48,588 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024683816] [2021-10-20 06:02:48,588 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-20 06:02:48,588 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [507540135] [2021-10-20 06:02:48,589 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [507540135] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 06:02:48,589 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 06:02:48,589 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 8 [2021-10-20 06:02:48,589 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624204183] [2021-10-20 06:02:48,589 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-20 06:02:48,589 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-20 06:02:48,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-20 06:02:48,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-10-20 06:02:48,590 INFO L87 Difference]: Start difference. First operand 69 states and 74 transitions. Second operand has 10 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 9 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:03:19,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 06:03:19,592 INFO L93 Difference]: Finished difference Result 122 states and 131 transitions. [2021-10-20 06:03:19,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-20 06:03:19,593 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 9 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-10-20 06:03:19,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 06:03:19,594 INFO L225 Difference]: With dead ends: 122 [2021-10-20 06:03:19,594 INFO L226 Difference]: Without dead ends: 122 [2021-10-20 06:03:19,594 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 15015.6ms TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2021-10-20 06:03:19,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2021-10-20 06:03:19,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 62. [2021-10-20 06:03:19,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 41 states have (on average 1.6341463414634145) internal successors, (67), 61 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) [2021-10-20 06:03:19,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 67 transitions. [2021-10-20 06:03:19,598 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 67 transitions. Word has length 16 [2021-10-20 06:03:19,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 06:03:19,598 INFO L470 AbstractCegarLoop]: Abstraction has 62 states and 67 transitions. [2021-10-20 06:03:19,598 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 9 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:03:19,599 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 67 transitions. [2021-10-20 06:03:19,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-20 06:03:19,599 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 06:03:19,600 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] [2021-10-20 06:03:19,624 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-10-20 06:03:19,806 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-20 06:03:19,807 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr22REQUIRES_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 45 more)] === [2021-10-20 06:03:19,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 06:03:19,807 INFO L82 PathProgramCache]: Analyzing trace with hash -1365290053, now seen corresponding path program 1 times [2021-10-20 06:03:19,807 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-20 06:03:19,807 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857875968] [2021-10-20 06:03:19,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:03:19,807 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-20 06:03:19,817 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-20 06:03:19,817 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [903939414] [2021-10-20 06:03:19,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:03:19,817 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-20 06:03:19,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 [2021-10-20 06:03:19,818 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-20 06:03:19,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-10-20 06:03:20,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 06:03:20,134 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-20 06:03:20,136 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 06:03:20,337 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 [2021-10-20 06:03:20,358 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 17 treesize of output 9 [2021-10-20 06:03:20,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:03:20,364 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 06:03:20,392 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 32 treesize of output 28 [2021-10-20 06:03:20,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:03:20,547 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-20 06:03:20,547 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857875968] [2021-10-20 06:03:20,547 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-20 06:03:20,547 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [903939414] [2021-10-20 06:03:20,548 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [903939414] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 06:03:20,548 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 06:03:20,548 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-10-20 06:03:20,548 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653511501] [2021-10-20 06:03:20,548 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-20 06:03:20,548 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-20 06:03:20,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-20 06:03:20,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-10-20 06:03:20,549 INFO L87 Difference]: Start difference. First operand 62 states and 67 transitions. Second operand has 10 states, 9 states have (on average 4.555555555555555) internal successors, (41), 10 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:03:20,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 06:03:20,768 INFO L93 Difference]: Finished difference Result 90 states and 97 transitions. [2021-10-20 06:03:20,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-20 06:03:20,769 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.555555555555555) internal successors, (41), 10 states have internal predecessors, (41), 0 states have call successors, (0), 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 [2021-10-20 06:03:20,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 06:03:20,770 INFO L225 Difference]: With dead ends: 90 [2021-10-20 06:03:20,770 INFO L226 Difference]: Without dead ends: 90 [2021-10-20 06:03:20,771 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 108.4ms TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2021-10-20 06:03:20,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2021-10-20 06:03:20,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 64. [2021-10-20 06:03:20,773 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) [2021-10-20 06:03:20,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 70 transitions. [2021-10-20 06:03:20,774 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 70 transitions. Word has length 21 [2021-10-20 06:03:20,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 06:03:20,776 INFO L470 AbstractCegarLoop]: Abstraction has 64 states and 70 transitions. [2021-10-20 06:03:20,776 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.555555555555555) internal successors, (41), 10 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:03:20,777 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 70 transitions. [2021-10-20 06:03:20,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-20 06:03:20,777 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 06:03:20,777 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] [2021-10-20 06:03:20,803 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-10-20 06:03:20,986 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-10-20 06:03:20,987 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr23REQUIRES_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 45 more)] === [2021-10-20 06:03:20,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 06:03:20,987 INFO L82 PathProgramCache]: Analyzing trace with hash -1365290052, now seen corresponding path program 1 times [2021-10-20 06:03:20,987 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-20 06:03:20,987 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826129798] [2021-10-20 06:03:20,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:03:20,988 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-20 06:03:20,998 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-20 06:03:20,999 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [409954287] [2021-10-20 06:03:20,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:03:20,999 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-20 06:03:20,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 [2021-10-20 06:03:21,000 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-20 06:03:21,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-10-20 06:03:21,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 06:03:21,330 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 29 conjunts are in the unsatisfiable core [2021-10-20 06:03:21,332 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 06:03:21,643 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 33 treesize of output 29 [2021-10-20 06:03:21,645 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 30 treesize of output 26 [2021-10-20 06:03:21,685 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 37 treesize of output 29 [2021-10-20 06:03:21,687 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 26 treesize of output 14 [2021-10-20 06:03:21,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:03:21,706 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 06:03:21,769 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 60 treesize of output 56 [2021-10-20 06:03:21,771 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 90 treesize of output 82 [2021-10-20 06:03:21,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:03:21,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:03:22,003 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:22,003 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 22 treesize of output 26 [2021-10-20 06:03:22,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:03:22,207 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-20 06:03:22,207 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826129798] [2021-10-20 06:03:22,207 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-20 06:03:22,208 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [409954287] [2021-10-20 06:03:22,208 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [409954287] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 06:03:22,208 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 06:03:22,208 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 14 [2021-10-20 06:03:22,208 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123701034] [2021-10-20 06:03:22,209 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-10-20 06:03:22,209 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-20 06:03:22,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-20 06:03:22,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2021-10-20 06:03:22,210 INFO L87 Difference]: Start difference. First operand 64 states and 70 transitions. Second operand has 15 states, 14 states have (on average 3.0) internal successors, (42), 15 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:03:22,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 06:03:22,497 INFO L93 Difference]: Finished difference Result 100 states and 106 transitions. [2021-10-20 06:03:22,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-20 06:03:22,498 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 3.0) internal successors, (42), 15 states have internal predecessors, (42), 0 states have call successors, (0), 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 [2021-10-20 06:03:22,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 06:03:22,498 INFO L225 Difference]: With dead ends: 100 [2021-10-20 06:03:22,498 INFO L226 Difference]: Without dead ends: 100 [2021-10-20 06:03:22,499 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 282.3ms TimeCoverageRelationStatistics Valid=102, Invalid=240, Unknown=0, NotChecked=0, Total=342 [2021-10-20 06:03:22,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2021-10-20 06:03:22,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 64. [2021-10-20 06:03:22,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 43 states have (on average 1.6046511627906976) internal successors, (69), 63 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) [2021-10-20 06:03:22,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 69 transitions. [2021-10-20 06:03:22,501 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 69 transitions. Word has length 21 [2021-10-20 06:03:22,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 06:03:22,501 INFO L470 AbstractCegarLoop]: Abstraction has 64 states and 69 transitions. [2021-10-20 06:03:22,502 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 3.0) internal successors, (42), 15 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:03:22,502 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 69 transitions. [2021-10-20 06:03:22,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-20 06:03:22,502 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 06:03:22,502 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] [2021-10-20 06:03:22,535 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-10-20 06:03:22,714 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-10-20 06:03:22,714 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr26REQUIRES_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 45 more)] === [2021-10-20 06:03:22,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 06:03:22,715 INFO L82 PathProgramCache]: Analyzing trace with hash -2078638933, now seen corresponding path program 1 times [2021-10-20 06:03:22,715 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-20 06:03:22,715 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719334018] [2021-10-20 06:03:22,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:03:22,715 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-20 06:03:22,724 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-20 06:03:22,724 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2132418246] [2021-10-20 06:03:22,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:03:22,724 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-20 06:03:22,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 [2021-10-20 06:03:22,729 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-20 06:03:22,730 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-10-20 06:03:23,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 06:03:23,092 INFO L263 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-20 06:03:23,094 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 06:03:23,161 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 17 treesize of output 9 [2021-10-20 06:03:23,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:03:23,168 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 06:03:23,184 INFO L354 Elim1Store]: treesize reduction 5, result has 58.3 percent of original size [2021-10-20 06:03:23,184 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 15 [2021-10-20 06:03:23,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:03:23,217 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-20 06:03:23,218 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719334018] [2021-10-20 06:03:23,218 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-20 06:03:23,218 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2132418246] [2021-10-20 06:03:23,218 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2132418246] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 06:03:23,218 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 06:03:23,218 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-20 06:03:23,219 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193276372] [2021-10-20 06:03:23,219 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-20 06:03:23,219 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-20 06:03:23,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-20 06:03:23,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-20 06:03:23,220 INFO L87 Difference]: Start difference. First operand 64 states and 69 transitions. Second operand has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:03:23,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 06:03:23,348 INFO L93 Difference]: Finished difference Result 75 states and 80 transitions. [2021-10-20 06:03:23,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-20 06:03:23,349 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 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 23 [2021-10-20 06:03:23,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 06:03:23,349 INFO L225 Difference]: With dead ends: 75 [2021-10-20 06:03:23,350 INFO L226 Difference]: Without dead ends: 75 [2021-10-20 06:03:23,350 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.1ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-20 06:03:23,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2021-10-20 06:03:23,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 63. [2021-10-20 06:03:23,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 43 states have (on average 1.5813953488372092) internal successors, (68), 62 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:03:23,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 68 transitions. [2021-10-20 06:03:23,353 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 68 transitions. Word has length 23 [2021-10-20 06:03:23,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 06:03:23,353 INFO L470 AbstractCegarLoop]: Abstraction has 63 states and 68 transitions. [2021-10-20 06:03:23,353 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:03:23,354 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 68 transitions. [2021-10-20 06:03:23,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-20 06:03:23,354 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 06:03:23,355 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] [2021-10-20 06:03:23,384 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-10-20 06:03:23,574 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-10-20 06:03:23,575 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr27REQUIRES_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 45 more)] === [2021-10-20 06:03:23,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 06:03:23,575 INFO L82 PathProgramCache]: Analyzing trace with hash -2078638932, now seen corresponding path program 1 times [2021-10-20 06:03:23,575 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-20 06:03:23,575 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515392638] [2021-10-20 06:03:23,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:03:23,576 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-20 06:03:23,591 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-20 06:03:23,591 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [398054319] [2021-10-20 06:03:23,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:03:23,591 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-20 06:03:23,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 [2021-10-20 06:03:23,599 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-20 06:03:23,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-10-20 06:03:23,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 06:03:23,990 INFO L263 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 32 conjunts are in the unsatisfiable core [2021-10-20 06:03:23,991 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 06:03:24,310 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 30 treesize of output 26 [2021-10-20 06:03:24,313 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 23 treesize of output 19 [2021-10-20 06:03:24,433 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 37 treesize of output 29 [2021-10-20 06:03:24,437 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 26 treesize of output 14 [2021-10-20 06:03:24,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:03:24,460 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 06:03:24,608 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 75 treesize of output 71 [2021-10-20 06:03:24,611 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 117 treesize of output 105 [2021-10-20 06:03:24,913 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:24,914 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 22 treesize of output 26 [2021-10-20 06:03:25,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:03:25,192 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-20 06:03:25,192 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515392638] [2021-10-20 06:03:25,193 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-20 06:03:25,193 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [398054319] [2021-10-20 06:03:25,193 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [398054319] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 06:03:25,193 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 06:03:25,193 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 16 [2021-10-20 06:03:25,193 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534589549] [2021-10-20 06:03:25,194 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-20 06:03:25,194 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-20 06:03:25,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-20 06:03:25,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2021-10-20 06:03:25,195 INFO L87 Difference]: Start difference. First operand 63 states and 68 transitions. Second operand has 17 states, 16 states have (on average 2.875) internal successors, (46), 17 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:03:25,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 06:03:25,638 INFO L93 Difference]: Finished difference Result 97 states and 103 transitions. [2021-10-20 06:03:25,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-20 06:03:25,639 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.875) internal successors, (46), 17 states have internal predecessors, (46), 0 states have call successors, (0), 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 23 [2021-10-20 06:03:25,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 06:03:25,640 INFO L225 Difference]: With dead ends: 97 [2021-10-20 06:03:25,640 INFO L226 Difference]: Without dead ends: 97 [2021-10-20 06:03:25,641 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 485.3ms TimeCoverageRelationStatistics Valid=140, Invalid=366, Unknown=0, NotChecked=0, Total=506 [2021-10-20 06:03:25,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2021-10-20 06:03:25,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 65. [2021-10-20 06:03:25,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 45 states have (on average 1.5555555555555556) internal successors, (70), 64 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) [2021-10-20 06:03:25,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 70 transitions. [2021-10-20 06:03:25,643 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 70 transitions. Word has length 23 [2021-10-20 06:03:25,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 06:03:25,644 INFO L470 AbstractCegarLoop]: Abstraction has 65 states and 70 transitions. [2021-10-20 06:03:25,644 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.875) internal successors, (46), 17 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:03:25,644 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 70 transitions. [2021-10-20 06:03:25,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-20 06:03:25,645 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 06:03:25,645 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 06:03:25,676 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-10-20 06:03:25,845 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-10-20 06:03:25,845 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 45 more)] === [2021-10-20 06:03:25,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 06:03:25,846 INFO L82 PathProgramCache]: Analyzing trace with hash -13295280, now seen corresponding path program 1 times [2021-10-20 06:03:25,846 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-20 06:03:25,846 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796771683] [2021-10-20 06:03:25,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:03:25,846 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-20 06:03:25,857 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-20 06:03:25,857 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [968487861] [2021-10-20 06:03:25,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:03:25,857 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-20 06:03:25,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 [2021-10-20 06:03:25,858 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-20 06:03:25,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-10-20 06:03:26,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 06:03:26,313 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 55 conjunts are in the unsatisfiable core [2021-10-20 06:03:26,314 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 06:03:26,370 INFO L354 Elim1Store]: treesize reduction 83, result has 23.9 percent of original size [2021-10-20 06:03:26,370 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 31 [2021-10-20 06:03:26,507 INFO L354 Elim1Store]: treesize reduction 44, result has 45.7 percent of original size [2021-10-20 06:03:26,508 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 36 treesize of output 62 [2021-10-20 06:03:26,992 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 [2021-10-20 06:03:27,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:03:27,074 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-20 06:03:27,093 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 25 treesize of output 24 [2021-10-20 06:03:27,099 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 [2021-10-20 06:03:27,194 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 43 treesize of output 35 [2021-10-20 06:03:27,226 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:27,227 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 16 [2021-10-20 06:03:27,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:03:27,239 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 06:03:27,334 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 111 treesize of output 103 [2021-10-20 06:03:36,990 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-20 06:03:37,518 INFO L354 Elim1Store]: treesize reduction 196, result has 54.3 percent of original size [2021-10-20 06:03:37,519 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 10 new quantified variables, introduced 36 case distinctions, treesize of input 63341 treesize of output 60505 [2021-10-20 06:03:40,510 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-20 06:03:40,510 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796771683] [2021-10-20 06:03:40,510 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-20 06:03:40,510 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [968487861] [2021-10-20 06:03:40,510 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-10-20 06:03:40,511 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1581048205] [2021-10-20 06:03:40,534 INFO L159 IcfgInterpreter]: Started Sifa with 25 locations of interest [2021-10-20 06:03:40,534 INFO L166 IcfgInterpreter]: Building call graph [2021-10-20 06:03:40,539 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-20 06:03:40,545 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-20 06:03:40,545 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-20 06:03:40,583 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:40,585 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:03:40,586 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:40,586 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-20 06:03:40,587 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:03:40,587 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:40,588 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-20 06:03:40,589 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 136 [2021-10-20 06:03:40,602 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_126|], 21=[|v_#valid_144|]} [2021-10-20 06:03:40,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:03:40,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:03:40,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:03:40,615 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 [2021-10-20 06:03:40,616 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:40,616 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-20 06:03:40,617 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:40,617 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-20 06:03:40,617 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-20 06:03:40,622 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 06:03:40,657 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:40,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:03:40,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:03:40,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:03:40,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:03:40,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:03:40,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:03:40,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:03:40,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:03:40,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:03:40,691 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 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 31 treesize of output 30 [2021-10-20 06:03:40,692 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:40,694 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-20 06:03:40,695 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:40,695 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-20 06:03:40,696 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-20 06:03:40,696 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 06:03:40,707 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:40,708 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:40,709 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 108 [2021-10-20 06:03:40,710 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-20 06:03:40,710 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:133, output treesize:108 [2021-10-20 06:03:40,719 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:40,720 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:03:40,721 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:40,721 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-10-20 06:03:40,725 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 203 [2021-10-20 06:03:40,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:03:40,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:03:40,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:03:40,772 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-10-20 06:03:40,772 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 32 [2021-10-20 06:03:40,772 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:40,783 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-10-20 06:03:40,783 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:40,784 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-10-20 06:03:40,784 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-20 06:03:40,793 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-20 06:03:40,794 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:40,794 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-20 06:03:40,794 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:40,794 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-20 06:03:40,795 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-20 06:03:40,795 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 06:03:40,811 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:40,815 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:40,818 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 180 [2021-10-20 06:03:40,819 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-20 06:03:40,819 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:366, output treesize:180 [2021-10-20 06:03:40,866 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-20 06:03:43,841 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [1581048205] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-20 06:03:43,841 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-20 06:03:43,841 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-20 06:03:43,842 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068568533] [2021-10-20 06:03:43,842 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-20 06:03:43,842 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-20 06:03:43,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-20 06:03:43,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=357, Unknown=2, NotChecked=0, Total=420 [2021-10-20 06:03:43,843 INFO L87 Difference]: Start difference. First operand 65 states and 70 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 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) [2021-10-20 06:03:44,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 06:03:44,264 INFO L93 Difference]: Finished difference Result 71 states and 77 transitions. [2021-10-20 06:03:44,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-20 06:03:44,265 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-10-20 06:03:44,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 06:03:44,265 INFO L225 Difference]: With dead ends: 71 [2021-10-20 06:03:44,265 INFO L226 Difference]: Without dead ends: 71 [2021-10-20 06:03:44,266 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 37 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 11308.6ms TimeCoverageRelationStatistics Valid=61, Invalid=357, Unknown=2, NotChecked=0, Total=420 [2021-10-20 06:03:44,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2021-10-20 06:03:44,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 69. [2021-10-20 06:03:44,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 49 states have (on average 1.510204081632653) internal successors, (74), 68 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) [2021-10-20 06:03:44,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 74 transitions. [2021-10-20 06:03:44,269 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 74 transitions. Word has length 24 [2021-10-20 06:03:44,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 06:03:44,269 INFO L470 AbstractCegarLoop]: Abstraction has 69 states and 74 transitions. [2021-10-20 06:03:44,269 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 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) [2021-10-20 06:03:44,269 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 74 transitions. [2021-10-20 06:03:44,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-20 06:03:44,270 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 06:03:44,270 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] [2021-10-20 06:03:44,297 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2021-10-20 06:03:44,478 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-10-20 06:03:44,479 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 45 more)] === [2021-10-20 06:03:44,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 06:03:44,479 INFO L82 PathProgramCache]: Analyzing trace with hash -1568578306, now seen corresponding path program 1 times [2021-10-20 06:03:44,479 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-20 06:03:44,479 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803476035] [2021-10-20 06:03:44,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:03:44,480 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-20 06:03:44,491 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-20 06:03:44,491 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1384951478] [2021-10-20 06:03:44,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:03:44,491 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-20 06:03:44,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 [2021-10-20 06:03:44,496 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-20 06:03:44,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-10-20 06:03:45,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 06:03:45,029 INFO L263 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 59 conjunts are in the unsatisfiable core [2021-10-20 06:03:45,031 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 06:03:45,077 INFO L354 Elim1Store]: treesize reduction 83, result has 23.9 percent of original size [2021-10-20 06:03:45,078 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 31 [2021-10-20 06:03:45,252 INFO L354 Elim1Store]: treesize reduction 44, result has 45.7 percent of original size [2021-10-20 06:03:45,252 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 36 treesize of output 62 [2021-10-20 06:03:45,700 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 [2021-10-20 06:03:45,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:03:45,800 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-20 06:03:45,822 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 25 treesize of output 24 [2021-10-20 06:03:45,832 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 [2021-10-20 06:03:45,939 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 43 treesize of output 35 [2021-10-20 06:03:45,981 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:45,982 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 16 [2021-10-20 06:03:45,998 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-20 06:03:45,998 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 06:03:46,114 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 111 treesize of output 103 [2021-10-20 06:03:55,074 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-20 06:03:55,749 INFO L354 Elim1Store]: treesize reduction 196, result has 54.3 percent of original size [2021-10-20 06:03:55,751 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 10 new quantified variables, introduced 36 case distinctions, treesize of input 30043 treesize of output 28663 [2021-10-20 06:03:56,946 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-20 06:03:56,946 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803476035] [2021-10-20 06:03:56,946 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-20 06:03:56,946 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1384951478] [2021-10-20 06:03:56,946 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-10-20 06:03:56,947 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [175640797] [2021-10-20 06:03:56,949 INFO L159 IcfgInterpreter]: Started Sifa with 25 locations of interest [2021-10-20 06:03:56,949 INFO L166 IcfgInterpreter]: Building call graph [2021-10-20 06:03:56,950 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-20 06:03:56,950 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-20 06:03:56,950 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-20 06:03:56,972 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:56,972 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:03:56,973 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:56,978 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-20 06:03:56,979 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:03:56,979 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:56,980 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-20 06:03:56,981 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 136 [2021-10-20 06:03:56,986 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_128|], 21=[|v_#valid_148|]} [2021-10-20 06:03:56,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:03:56,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:03:56,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:03:56,999 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 [2021-10-20 06:03:56,999 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:57,000 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-20 06:03:57,000 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:57,001 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-20 06:03:57,001 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-20 06:03:57,002 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 06:03:57,010 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:57,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:03:57,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:03:57,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:03:57,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:03:57,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:03:57,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:03:57,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:03:57,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:03:57,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:03:57,035 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 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 31 treesize of output 30 [2021-10-20 06:03:57,036 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:57,038 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-20 06:03:57,039 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:57,040 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-20 06:03:57,040 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-20 06:03:57,040 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 06:03:57,051 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:57,052 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:57,055 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 108 [2021-10-20 06:03:57,056 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-20 06:03:57,056 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:133, output treesize:108 [2021-10-20 06:03:57,064 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:57,065 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:03:57,066 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:57,066 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-10-20 06:03:57,070 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 203 [2021-10-20 06:03:57,084 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-20 06:03:57,085 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:57,085 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-20 06:03:57,086 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:57,086 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-20 06:03:57,086 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-20 06:03:57,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:03:57,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:03:57,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:03:57,111 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-10-20 06:03:57,111 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 32 [2021-10-20 06:03:57,111 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:57,112 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-10-20 06:03:57,113 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:57,113 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-10-20 06:03:57,113 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-20 06:03:57,114 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 06:03:57,126 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:57,128 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:57,131 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 180 [2021-10-20 06:03:57,137 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-20 06:03:57,138 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:366, output treesize:180 [2021-10-20 06:03:57,164 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:57,167 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:03:57,168 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:57,168 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-10-20 06:03:57,169 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:03:57,169 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:57,170 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-20 06:03:57,170 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:03:57,170 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:57,171 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-10-20 06:03:57,175 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 242 [2021-10-20 06:03:57,179 INFO L446 ElimStorePlain]: Different costs {2=[|v_#memory_$Pointer$.offset_95|, |v_#memory_$Pointer$.base_100|], 6=[|v_#memory_int_72|]} [2021-10-20 06:03:57,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:03:57,195 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-10-20 06:03:57,196 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:57,197 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-20 06:03:57,197 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:57,198 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-20 06:03:57,198 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-20 06:03:57,198 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 06:03:57,219 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:57,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:03:57,236 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2021-10-20 06:03:57,237 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:57,238 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-10-20 06:03:57,239 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:57,240 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-10-20 06:03:57,240 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-20 06:03:57,241 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 06:03:57,255 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:57,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:03:57,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:03:57,273 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 28 treesize of output 30 [2021-10-20 06:03:57,273 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:57,275 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-10-20 06:03:57,275 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:57,276 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-10-20 06:03:57,276 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-10-20 06:03:57,277 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 06:03:57,290 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:57,293 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:57,296 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 224 [2021-10-20 06:03:57,297 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-20 06:03:57,297 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:236, output treesize:224 [2021-10-20 06:03:57,317 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 06:03:57,361 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 06:03:57,407 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 06:03:57,488 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:57,497 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:03:57,504 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:57,511 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:03:57,516 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:57,518 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:03:57,519 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:57,519 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-10-20 06:03:57,520 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:03:57,521 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:57,521 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-10-20 06:03:57,527 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 459 [2021-10-20 06:03:57,528 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:03:57,533 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:57,538 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 442 [2021-10-20 06:03:57,544 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 443 [2021-10-20 06:03:57,545 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:03:57,550 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:57,556 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:03:57,561 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:57,562 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:03:57,563 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:57,564 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-10-20 06:03:57,564 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:03:57,565 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:57,565 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-10-20 06:03:57,571 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 463 [2021-10-20 06:03:57,572 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:03:57,577 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:57,583 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 444 [2021-10-20 06:03:57,588 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 445 [2021-10-20 06:03:57,588 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:03:57,594 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:57,600 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:03:57,605 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:57,606 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:03:57,607 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:57,607 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-10-20 06:03:57,608 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:03:57,609 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:57,609 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-10-20 06:03:57,615 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 459 [2021-10-20 06:03:57,616 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:03:57,621 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:57,626 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 442 [2021-10-20 06:03:57,631 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 443 [2021-10-20 06:03:57,638 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:03:57,644 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:57,645 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:03:57,645 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:57,646 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-10-20 06:03:57,646 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:03:57,646 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:57,647 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-10-20 06:03:57,647 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:03:57,648 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:57,648 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-10-20 06:03:57,649 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:03:57,650 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:57,650 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-10-20 06:03:57,650 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:03:57,651 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:57,651 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-10-20 06:03:57,652 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:03:57,652 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:57,653 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-10-20 06:03:57,660 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 527 [2021-10-20 06:03:57,660 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:03:57,665 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:57,671 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 472 [2021-10-20 06:03:57,678 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 581 [2021-10-20 06:03:57,686 INFO L446 ElimStorePlain]: Different costs {6=[|v_#memory_$Pointer$.offset_96|, |v_#memory_$Pointer$.base_101|], 12=[|v_#memory_int_73|]} [2021-10-20 06:03:57,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:03:57,721 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2021-10-20 06:03:57,722 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:57,723 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-10-20 06:03:57,724 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:57,725 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-10-20 06:03:57,725 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-20 06:03:57,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:03:57,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:03:57,767 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 33 treesize of output 35 [2021-10-20 06:03:57,767 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:57,768 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-10-20 06:03:57,769 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:57,770 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-10-20 06:03:57,770 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-20 06:03:57,770 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 06:03:57,846 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:57,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:03:57,877 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2021-10-20 06:03:57,877 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:57,878 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-10-20 06:03:57,879 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:57,879 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-10-20 06:03:57,880 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-10-20 06:03:57,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:03:57,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:03:57,916 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 29 treesize of output 31 [2021-10-20 06:03:57,917 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:57,918 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-10-20 06:03:57,919 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:57,919 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-10-20 06:03:57,920 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-10-20 06:03:57,921 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 06:03:58,009 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:58,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:03:58,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:03:58,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:03:58,062 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 38 treesize of output 43 [2021-10-20 06:03:58,063 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:58,064 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-10-20 06:03:58,065 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:58,066 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-10-20 06:03:58,066 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-10-20 06:03:58,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:03:58,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:03:58,097 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 31 treesize of output 33 [2021-10-20 06:03:58,097 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:58,099 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-10-20 06:03:58,099 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:58,100 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-10-20 06:03:58,100 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-10-20 06:03:58,101 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 06:03:58,175 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:58,216 INFO L180 QuantifierPusher]: treesize reduction 124, result has 82.4 percent of original size [2021-10-20 06:03:58,231 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 581 [2021-10-20 06:03:58,233 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-10-20 06:03:58,233 INFO L247 ElimStorePlain]: Needed 7 recursive calls to eliminate 3 variables, input treesize:729, output treesize:581 [2021-10-20 06:03:58,278 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 06:03:58,369 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 06:03:58,370 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 06:03:58,373 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 06:03:58,375 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 06:03:58,377 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 06:03:58,395 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 06:03:58,407 INFO L180 QuantifierPusher]: treesize reduction 54, result has 70.5 percent of original size [2021-10-20 06:03:58,409 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:03:58,409 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:58,410 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-20 06:03:58,410 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:03:58,410 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:58,411 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-10-20 06:03:58,411 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:03:58,412 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:58,412 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-10-20 06:03:58,414 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-10-20 06:03:58,424 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 14 treesize of output 10 [2021-10-20 06:03:58,424 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:58,425 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-10-20 06:03:58,425 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:58,426 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-10-20 06:03:58,426 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-20 06:03:58,426 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 06:03:58,431 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:58,438 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 [2021-10-20 06:03:58,438 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:58,440 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-20 06:03:58,441 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:58,441 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-20 06:03:58,441 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-20 06:03:58,442 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 06:03:58,446 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:58,453 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 14 treesize of output 10 [2021-10-20 06:03:58,454 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:58,454 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-10-20 06:03:58,454 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:58,455 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-10-20 06:03:58,455 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-10-20 06:03:58,455 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 06:03:58,460 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:58,462 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:58,463 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 116 [2021-10-20 06:03:58,464 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-20 06:03:58,464 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:128, output treesize:116 [2021-10-20 06:03:58,481 INFO L180 QuantifierPusher]: treesize reduction 55, result has 79.1 percent of original size [2021-10-20 06:03:58,486 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:03:58,487 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:58,487 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-20 06:03:58,489 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:03:58,489 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:58,490 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-10-20 06:03:58,496 INFO L185 QuantifierPusher]: treesize reduction 5, result has 97.0 percent of original size 163 [2021-10-20 06:03:58,502 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_130|], 1=[|v_#valid_150|]} [2021-10-20 06:03:58,513 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-10-20 06:03:58,514 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:58,514 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-10-20 06:03:58,514 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:58,515 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-10-20 06:03:58,515 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-20 06:03:58,536 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-20 06:03:58,536 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:58,537 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-20 06:03:58,537 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:58,538 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-20 06:03:58,538 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-20 06:03:58,538 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 06:03:58,545 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:58,554 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 12 treesize of output 9 [2021-10-20 06:03:58,555 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:58,556 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-10-20 06:03:58,561 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:58,561 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-10-20 06:03:58,561 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-10-20 06:03:58,562 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 06:03:58,568 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:58,571 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:58,574 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-10-20 06:03:58,574 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-20 06:03:58,575 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:284, output treesize:133 [2021-10-20 06:03:58,585 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:58,590 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 142 [2021-10-20 06:03:58,600 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:58,601 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:03:58,602 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:58,602 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-20 06:03:58,603 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:03:58,603 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:58,604 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-10-20 06:03:58,610 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 204 [2021-10-20 06:03:58,615 INFO L446 ElimStorePlain]: Different costs {3=[|v_#length_131|], 6=[|v_#valid_151|]} [2021-10-20 06:03:58,624 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-20 06:03:58,625 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:58,625 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-20 06:03:58,626 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:58,626 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-20 06:03:58,626 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-20 06:03:58,634 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-20 06:03:58,635 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:58,635 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-20 06:03:58,635 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:58,636 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-20 06:03:58,636 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-20 06:03:58,636 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 06:03:58,637 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:58,637 INFO L518 ElimStorePlain]: Eliminatee |v_#valid_151| vanished before elimination [2021-10-20 06:03:58,637 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:03:58,638 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-20 06:03:58,638 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-20 06:03:58,638 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:391, output treesize:1 [2021-10-20 06:03:58,639 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-20 06:04:01,930 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [175640797] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-20 06:04:01,930 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-20 06:04:01,930 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-20 06:04:01,931 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363011329] [2021-10-20 06:04:01,931 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-20 06:04:01,931 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-20 06:04:01,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-20 06:04:01,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=483, Unknown=2, NotChecked=0, Total=552 [2021-10-20 06:04:01,932 INFO L87 Difference]: Start difference. First operand 69 states and 74 transitions. Second operand has 8 states, 8 states have (on average 3.125) internal successors, (25), 7 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:04:06,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 06:04:06,746 INFO L93 Difference]: Finished difference Result 75 states and 81 transitions. [2021-10-20 06:04:06,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-20 06:04:06,747 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.125) internal successors, (25), 7 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-10-20 06:04:06,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 06:04:06,748 INFO L225 Difference]: With dead ends: 75 [2021-10-20 06:04:06,748 INFO L226 Difference]: Without dead ends: 75 [2021-10-20 06:04:06,748 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 35 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 15015.4ms TimeCoverageRelationStatistics Valid=82, Invalid=566, Unknown=2, NotChecked=0, Total=650 [2021-10-20 06:04:06,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2021-10-20 06:04:06,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 73. [2021-10-20 06:04:06,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 53 states have (on average 1.471698113207547) 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) [2021-10-20 06:04:06,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 78 transitions. [2021-10-20 06:04:06,751 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 78 transitions. Word has length 25 [2021-10-20 06:04:06,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 06:04:06,751 INFO L470 AbstractCegarLoop]: Abstraction has 73 states and 78 transitions. [2021-10-20 06:04:06,751 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.125) internal successors, (25), 7 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:04:06,751 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 78 transitions. [2021-10-20 06:04:06,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-20 06:04:06,752 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 06:04:06,752 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] [2021-10-20 06:04:06,788 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-10-20 06:04:06,960 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-20 06:04:06,960 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 45 more)] === [2021-10-20 06:04:06,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 06:04:06,961 INFO L82 PathProgramCache]: Analyzing trace with hash 1658643515, now seen corresponding path program 1 times [2021-10-20 06:04:06,961 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-20 06:04:06,961 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815135262] [2021-10-20 06:04:06,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:04:06,961 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-20 06:04:06,977 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-20 06:04:06,977 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [754570046] [2021-10-20 06:04:06,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:04:06,977 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-20 06:04:06,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 [2021-10-20 06:04:06,981 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-20 06:04:06,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-10-20 06:04:07,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 06:04:07,572 INFO L263 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 52 conjunts are in the unsatisfiable core [2021-10-20 06:04:07,574 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 06:04:07,628 INFO L354 Elim1Store]: treesize reduction 83, result has 23.9 percent of original size [2021-10-20 06:04:07,628 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 31 [2021-10-20 06:04:07,783 INFO L354 Elim1Store]: treesize reduction 44, result has 45.7 percent of original size [2021-10-20 06:04:07,783 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 36 treesize of output 62 [2021-10-20 06:04:08,275 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 [2021-10-20 06:04:08,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:04:08,370 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-20 06:04:08,387 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 25 treesize of output 24 [2021-10-20 06:04:08,393 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 [2021-10-20 06:04:08,468 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 43 treesize of output 35 [2021-10-20 06:04:08,511 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:08,512 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 16 [2021-10-20 06:04:08,528 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-20 06:04:08,528 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 06:04:08,599 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 84 treesize of output 80 [2021-10-20 06:04:18,786 WARN L207 SmtUtils]: Spent 6.04 s on a formula simplification. DAG size of input: 34 DAG size of output: 30 [2021-10-20 06:04:35,636 INFO L354 Elim1Store]: treesize reduction 196, result has 54.3 percent of original size [2021-10-20 06:04:35,637 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 10 new quantified variables, introduced 36 case distinctions, treesize of input 200354 treesize of output 191774 [2021-10-20 06:04:46,332 WARN L207 SmtUtils]: Spent 10.69 s on a formula simplification. DAG size of input: 881 DAG size of output: 879 [2021-10-20 06:04:46,724 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-20 06:04:46,724 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815135262] [2021-10-20 06:04:46,724 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-20 06:04:46,724 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [754570046] [2021-10-20 06:04:46,724 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-10-20 06:04:46,724 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [632039176] [2021-10-20 06:04:46,726 INFO L159 IcfgInterpreter]: Started Sifa with 25 locations of interest [2021-10-20 06:04:46,727 INFO L166 IcfgInterpreter]: Building call graph [2021-10-20 06:04:46,727 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-20 06:04:46,727 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-20 06:04:46,727 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-20 06:04:46,742 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:46,743 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:46,743 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:46,744 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-20 06:04:46,744 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:46,745 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:46,745 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-20 06:04:46,746 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 136 [2021-10-20 06:04:46,748 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_132|], 21=[|v_#valid_154|]} [2021-10-20 06:04:46,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:04:46,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:04:46,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:04:46,763 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 [2021-10-20 06:04:46,764 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:46,764 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-20 06:04:46,765 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:46,765 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-20 06:04:46,766 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-20 06:04:46,766 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 06:04:46,774 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:46,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:04:46,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:04:46,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:04:46,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:04:46,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:04:46,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:04:46,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:04:46,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:04:46,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:04:46,801 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 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 31 treesize of output 30 [2021-10-20 06:04:46,802 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:46,804 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-20 06:04:46,805 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:46,805 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-20 06:04:46,805 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-20 06:04:46,806 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 06:04:46,809 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:46,810 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:46,811 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 108 [2021-10-20 06:04:46,811 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-20 06:04:46,812 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:133, output treesize:108 [2021-10-20 06:04:46,818 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:46,820 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:46,820 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:46,821 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-10-20 06:04:46,824 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 203 [2021-10-20 06:04:46,835 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-20 06:04:46,836 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:46,836 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-20 06:04:46,837 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:46,837 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-20 06:04:46,837 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-20 06:04:46,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:04:46,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:04:46,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:04:46,869 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-10-20 06:04:46,869 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 32 [2021-10-20 06:04:46,870 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:46,871 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-10-20 06:04:46,872 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:46,873 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-10-20 06:04:46,873 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-20 06:04:46,873 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 06:04:46,880 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:46,883 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:46,886 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 180 [2021-10-20 06:04:46,887 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-20 06:04:46,887 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:366, output treesize:180 [2021-10-20 06:04:46,919 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:46,921 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:46,922 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:46,923 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-10-20 06:04:46,923 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:46,923 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:46,924 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-10-20 06:04:46,924 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:46,925 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:46,925 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-10-20 06:04:46,930 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 255 [2021-10-20 06:04:46,934 INFO L446 ElimStorePlain]: Different costs {2=[|v_#memory_$Pointer$.base_109|, |v_#memory_$Pointer$.offset_102|], 6=[|v_#memory_int_78|]} [2021-10-20 06:04:46,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:04:46,955 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2021-10-20 06:04:46,955 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:46,956 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-10-20 06:04:46,956 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:46,957 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-10-20 06:04:46,957 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-20 06:04:46,958 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 06:04:46,967 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:46,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:04:46,984 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2021-10-20 06:04:46,984 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:46,985 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-10-20 06:04:46,986 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:46,986 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-10-20 06:04:46,987 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-20 06:04:46,987 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 06:04:46,996 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:47,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:04:47,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:04:47,015 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 31 treesize of output 33 [2021-10-20 06:04:47,016 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:47,017 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-10-20 06:04:47,018 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:47,018 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-10-20 06:04:47,019 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-10-20 06:04:47,019 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 06:04:47,028 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:47,031 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:47,034 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 237 [2021-10-20 06:04:47,035 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-20 06:04:47,036 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:249, output treesize:237 [2021-10-20 06:04:47,052 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 06:04:47,082 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 06:04:47,112 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 06:04:47,185 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:47,194 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:47,201 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:47,209 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:47,216 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:47,217 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:47,218 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:47,218 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-10-20 06:04:47,219 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:47,220 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:47,220 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-10-20 06:04:47,228 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 470 [2021-10-20 06:04:47,229 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:47,235 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:47,242 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 453 [2021-10-20 06:04:47,249 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 454 [2021-10-20 06:04:47,250 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:47,256 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:47,264 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:47,271 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:47,272 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:47,273 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:47,273 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-10-20 06:04:47,274 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:47,274 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:47,275 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-10-20 06:04:47,283 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 470 [2021-10-20 06:04:47,283 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:47,290 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:47,297 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 453 [2021-10-20 06:04:47,304 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 454 [2021-10-20 06:04:47,304 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:47,311 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:47,319 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:47,327 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:47,328 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:47,329 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:47,329 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-10-20 06:04:47,330 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:47,331 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:47,332 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-10-20 06:04:47,339 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 474 [2021-10-20 06:04:47,339 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:47,346 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:47,353 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 455 [2021-10-20 06:04:47,360 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 456 [2021-10-20 06:04:47,368 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:47,375 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:47,376 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:47,377 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:47,378 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-10-20 06:04:47,378 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:47,379 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:47,379 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-10-20 06:04:47,380 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:47,380 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:47,381 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-10-20 06:04:47,382 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:47,388 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:47,388 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-10-20 06:04:47,389 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:47,389 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:47,390 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-10-20 06:04:47,390 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:47,391 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:47,391 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-10-20 06:04:47,398 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 538 [2021-10-20 06:04:47,399 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:47,408 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:47,414 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 483 [2021-10-20 06:04:47,420 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 592 [2021-10-20 06:04:47,427 INFO L446 ElimStorePlain]: Different costs {6=[|v_#memory_$Pointer$.base_110|, |v_#memory_$Pointer$.offset_103|], 12=[|v_#memory_int_79|]} [2021-10-20 06:04:47,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:04:47,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:04:47,495 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 34 [2021-10-20 06:04:47,495 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:47,497 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-10-20 06:04:47,497 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:47,498 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-10-20 06:04:47,498 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-20 06:04:47,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:04:47,538 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2021-10-20 06:04:47,539 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:47,539 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-10-20 06:04:47,540 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:47,540 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-10-20 06:04:47,540 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-20 06:04:47,540 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 06:04:47,598 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:47,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:04:47,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:04:47,646 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 36 treesize of output 38 [2021-10-20 06:04:47,647 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:47,648 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-10-20 06:04:47,648 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:47,649 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-10-20 06:04:47,649 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-10-20 06:04:47,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:04:47,682 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2021-10-20 06:04:47,682 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:47,683 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-10-20 06:04:47,684 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:47,684 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-10-20 06:04:47,684 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-10-20 06:04:47,685 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 06:04:47,741 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:47,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:04:47,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:04:47,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:04:47,795 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 41 treesize of output 46 [2021-10-20 06:04:47,796 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:47,798 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-10-20 06:04:47,798 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:47,799 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-10-20 06:04:47,799 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-10-20 06:04:47,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:04:47,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:04:47,835 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 31 treesize of output 33 [2021-10-20 06:04:47,835 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:47,836 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-10-20 06:04:47,837 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:47,838 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-10-20 06:04:47,838 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-10-20 06:04:47,838 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 06:04:47,890 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:47,913 INFO L180 QuantifierPusher]: treesize reduction 129, result has 82.0 percent of original size [2021-10-20 06:04:47,921 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 587 [2021-10-20 06:04:47,923 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-10-20 06:04:47,923 INFO L247 ElimStorePlain]: Needed 7 recursive calls to eliminate 3 variables, input treesize:740, output treesize:587 [2021-10-20 06:04:47,958 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 06:04:48,027 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 06:04:48,029 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 06:04:48,031 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 06:04:48,033 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 06:04:48,040 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 06:04:48,051 INFO L180 QuantifierPusher]: treesize reduction 54, result has 70.5 percent of original size [2021-10-20 06:04:48,053 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:48,053 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:48,054 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-10-20 06:04:48,054 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:48,055 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:48,055 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-10-20 06:04:48,055 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:48,056 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:48,056 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-20 06:04:48,058 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-10-20 06:04:48,068 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 [2021-10-20 06:04:48,068 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:48,068 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-20 06:04:48,069 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:48,069 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-20 06:04:48,069 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-20 06:04:48,070 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 06:04:48,074 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:48,082 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 14 treesize of output 10 [2021-10-20 06:04:48,082 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:48,083 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-10-20 06:04:48,083 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:48,083 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-10-20 06:04:48,084 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-20 06:04:48,084 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 06:04:48,088 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:48,095 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 14 treesize of output 10 [2021-10-20 06:04:48,096 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:48,096 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-10-20 06:04:48,097 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:48,097 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-10-20 06:04:48,097 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-10-20 06:04:48,098 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 06:04:48,102 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:48,103 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:48,105 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 116 [2021-10-20 06:04:48,105 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-20 06:04:48,106 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:128, output treesize:116 [2021-10-20 06:04:48,124 INFO L180 QuantifierPusher]: treesize reduction 55, result has 79.1 percent of original size [2021-10-20 06:04:48,126 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:48,127 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:48,127 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-20 06:04:48,128 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:48,129 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:48,129 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-10-20 06:04:48,138 INFO L185 QuantifierPusher]: treesize reduction 5, result has 97.0 percent of original size 163 [2021-10-20 06:04:48,141 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_134|], 1=[|v_#valid_156|]} [2021-10-20 06:04:48,149 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-20 06:04:48,150 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:48,150 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-20 06:04:48,151 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:48,151 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-20 06:04:48,151 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-20 06:04:48,160 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-10-20 06:04:48,160 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:48,161 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-10-20 06:04:48,161 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:48,161 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-10-20 06:04:48,161 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-20 06:04:48,162 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 06:04:48,169 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:48,177 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 12 treesize of output 9 [2021-10-20 06:04:48,178 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:48,179 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-10-20 06:04:48,179 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:48,180 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-10-20 06:04:48,180 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-10-20 06:04:48,180 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 06:04:48,187 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:48,190 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:48,192 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-10-20 06:04:48,193 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-20 06:04:48,193 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:284, output treesize:133 [2021-10-20 06:04:48,205 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:48,210 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 142 [2021-10-20 06:04:48,215 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:48,216 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:48,217 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:48,217 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-10-20 06:04:48,218 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:48,218 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:48,219 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-10-20 06:04:48,219 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:48,219 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:48,220 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-20 06:04:48,222 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 196 [2021-10-20 06:04:48,235 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 [2021-10-20 06:04:48,236 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:48,236 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-20 06:04:48,237 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:48,237 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-20 06:04:48,238 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-20 06:04:48,238 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 06:04:48,246 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:48,256 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 14 treesize of output 10 [2021-10-20 06:04:48,257 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:48,257 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-10-20 06:04:48,258 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:48,258 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-10-20 06:04:48,259 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-20 06:04:48,259 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 06:04:48,267 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:48,276 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 14 treesize of output 10 [2021-10-20 06:04:48,277 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:48,277 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-10-20 06:04:48,278 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:48,278 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-10-20 06:04:48,278 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-10-20 06:04:48,279 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 06:04:48,286 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:48,288 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:48,291 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 181 [2021-10-20 06:04:48,292 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-20 06:04:48,292 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:193, output treesize:181 [2021-10-20 06:04:48,297 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 06:04:48,314 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 06:04:48,333 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 06:04:48,375 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:48,382 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:48,386 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:48,392 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:48,397 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:48,398 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:48,399 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:48,399 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-10-20 06:04:48,400 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:48,401 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:48,401 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-20 06:04:48,406 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 349 [2021-10-20 06:04:48,407 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:48,411 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:48,416 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 331 [2021-10-20 06:04:48,420 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 332 [2021-10-20 06:04:48,421 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:48,425 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:48,431 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:48,436 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:48,437 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:48,437 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:48,438 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-10-20 06:04:48,438 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:48,439 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:48,439 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-10-20 06:04:48,445 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 345 [2021-10-20 06:04:48,445 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:48,449 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:48,454 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 329 [2021-10-20 06:04:48,458 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 330 [2021-10-20 06:04:48,458 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:48,463 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:48,468 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:48,473 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:48,474 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:48,475 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:48,475 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-10-20 06:04:48,476 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:48,477 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:48,477 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-10-20 06:04:48,482 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 345 [2021-10-20 06:04:48,483 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:48,487 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:48,492 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 329 [2021-10-20 06:04:48,496 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 330 [2021-10-20 06:04:48,502 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:48,508 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:48,508 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:48,509 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:48,510 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-10-20 06:04:48,510 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:48,511 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:48,511 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-10-20 06:04:48,511 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:48,512 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:48,512 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-10-20 06:04:48,513 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:48,514 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:48,514 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-10-20 06:04:48,514 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:48,515 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:48,515 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-20 06:04:48,516 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:48,516 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:48,516 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-10-20 06:04:48,523 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 411 [2021-10-20 06:04:48,523 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:48,528 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:48,532 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 359 [2021-10-20 06:04:48,538 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 462 [2021-10-20 06:04:48,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:04:48,567 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 29 treesize of output 28 [2021-10-20 06:04:48,568 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:48,569 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-10-20 06:04:48,570 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:48,570 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-10-20 06:04:48,570 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-20 06:04:48,587 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 [2021-10-20 06:04:48,588 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:48,588 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-20 06:04:48,589 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:48,589 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-20 06:04:48,589 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-20 06:04:48,590 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 06:04:48,633 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:48,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:04:48,655 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 25 treesize of output 24 [2021-10-20 06:04:48,656 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:48,657 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-20 06:04:48,658 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:48,658 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-20 06:04:48,658 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-10-20 06:04:48,675 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 14 treesize of output 10 [2021-10-20 06:04:48,676 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:48,677 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-10-20 06:04:48,677 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:48,678 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-10-20 06:04:48,678 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-10-20 06:04:48,678 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 06:04:48,722 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:48,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:04:48,743 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 25 treesize of output 24 [2021-10-20 06:04:48,744 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:48,744 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-20 06:04:48,745 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:48,746 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-20 06:04:48,746 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-10-20 06:04:48,761 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 14 treesize of output 10 [2021-10-20 06:04:48,762 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:48,762 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-10-20 06:04:48,762 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:48,763 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-10-20 06:04:48,763 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-10-20 06:04:48,764 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 06:04:48,807 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:48,832 INFO L180 QuantifierPusher]: treesize reduction 135, result has 76.7 percent of original size [2021-10-20 06:04:48,840 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 445 [2021-10-20 06:04:48,841 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-10-20 06:04:48,842 INFO L247 ElimStorePlain]: Needed 7 recursive calls to eliminate 3 variables, input treesize:604, output treesize:445 [2021-10-20 06:04:48,856 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 06:04:48,890 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 06:04:48,892 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 06:04:48,894 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 06:04:48,895 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 06:04:48,904 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 06:04:48,918 INFO L180 QuantifierPusher]: treesize reduction 60, result has 70.6 percent of original size [2021-10-20 06:04:48,920 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:48,920 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:48,921 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-10-20 06:04:48,921 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:48,921 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:48,922 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-20 06:04:48,922 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:48,923 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:48,923 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-10-20 06:04:48,925 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 146 [2021-10-20 06:04:48,935 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 [2021-10-20 06:04:48,936 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:48,936 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-20 06:04:48,937 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:48,937 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-20 06:04:48,937 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-20 06:04:48,938 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 06:04:48,943 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:48,951 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 14 treesize of output 10 [2021-10-20 06:04:48,951 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:48,952 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-10-20 06:04:48,952 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:48,952 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-10-20 06:04:48,953 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-20 06:04:48,953 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 06:04:48,957 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:48,965 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 14 treesize of output 10 [2021-10-20 06:04:48,966 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:48,966 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-10-20 06:04:48,966 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:48,967 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-10-20 06:04:48,967 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-10-20 06:04:48,967 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 06:04:48,972 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:48,974 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:48,975 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-10-20 06:04:48,976 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-20 06:04:48,976 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:143, output treesize:131 [2021-10-20 06:04:48,987 INFO L180 QuantifierPusher]: treesize reduction 61, result has 71.4 percent of original size [2021-10-20 06:04:48,988 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:48,989 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:48,989 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-20 06:04:48,989 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:48,990 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:48,990 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-10-20 06:04:48,993 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 154 [2021-10-20 06:04:48,997 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_135|], 1=[|v_#valid_157|]} [2021-10-20 06:04:49,008 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 [2021-10-20 06:04:49,009 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,010 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-10-20 06:04:49,010 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,011 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-10-20 06:04:49,011 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-20 06:04:49,021 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-20 06:04:49,022 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,022 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-20 06:04:49,023 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,023 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-20 06:04:49,023 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-20 06:04:49,023 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 06:04:49,030 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,040 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 12 treesize of output 9 [2021-10-20 06:04:49,040 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,042 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-10-20 06:04:49,042 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,043 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-10-20 06:04:49,043 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-10-20 06:04:49,043 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 06:04:49,049 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,053 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,056 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 139 [2021-10-20 06:04:49,057 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-20 06:04:49,057 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:293, output treesize:139 [2021-10-20 06:04:49,064 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,065 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:49,066 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,066 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-10-20 06:04:49,067 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:49,067 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,067 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:49,068 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,068 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-10-20 06:04:49,069 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-20 06:04:49,069 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:49,069 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,070 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-10-20 06:04:49,070 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:49,071 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,071 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-10-20 06:04:49,074 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 192 [2021-10-20 06:04:49,095 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-10-20 06:04:49,096 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,096 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-20 06:04:49,096 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,097 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-20 06:04:49,097 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-20 06:04:49,097 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 06:04:49,104 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,114 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 [2021-10-20 06:04:49,115 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,115 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-10-20 06:04:49,116 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,116 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-10-20 06:04:49,116 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-20 06:04:49,117 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 06:04:49,124 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,134 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 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 [2021-10-20 06:04:49,134 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,135 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-10-20 06:04:49,135 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,135 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-10-20 06:04:49,136 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-10-20 06:04:49,136 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 06:04:49,143 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,147 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,150 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 174 [2021-10-20 06:04:49,151 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-20 06:04:49,152 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:188, output treesize:174 [2021-10-20 06:04:49,168 INFO L180 QuantifierPusher]: treesize reduction 32, result has 88.5 percent of original size [2021-10-20 06:04:49,170 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:49,170 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,171 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-10-20 06:04:49,172 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:49,173 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,173 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-10-20 06:04:49,173 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:49,174 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,174 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-10-20 06:04:49,178 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 244 [2021-10-20 06:04:49,184 INFO L446 ElimStorePlain]: Different costs {0=[|v_#memory_int_85|], 6=[|v_#memory_$Pointer$.offset_109|, |v_#memory_$Pointer$.base_116|]} [2021-10-20 06:04:49,196 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-10-20 06:04:49,196 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,197 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-20 06:04:49,197 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,198 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-20 06:04:49,198 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-20 06:04:49,198 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 06:04:49,206 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:04:49,220 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-20 06:04:49,237 INFO L354 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2021-10-20 06:04:49,238 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 27 [2021-10-20 06:04:49,238 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,240 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-20 06:04:49,240 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,241 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-20 06:04:49,241 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-20 06:04:49,241 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 06:04:49,249 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:04:49,263 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-20 06:04:49,278 INFO L354 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2021-10-20 06:04:49,279 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 51 treesize of output 41 [2021-10-20 06:04:49,279 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,280 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-10-20 06:04:49,281 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,282 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-10-20 06:04:49,282 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-10-20 06:04:49,282 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 06:04:49,291 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,294 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,297 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 212 [2021-10-20 06:04:49,298 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-20 06:04:49,298 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:239, output treesize:212 [2021-10-20 06:04:49,307 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.9 percent of original size [2021-10-20 06:04:49,308 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:49,308 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,309 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-10-20 06:04:49,309 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:49,310 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,310 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-10-20 06:04:49,311 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:49,311 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,312 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-10-20 06:04:49,315 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 262 [2021-10-20 06:04:49,320 INFO L446 ElimStorePlain]: Different costs {0=[|v_#memory_int_86|], 12=[|v_#memory_$Pointer$.base_117|, |v_#memory_$Pointer$.offset_110|]} [2021-10-20 06:04:49,334 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 15 treesize of output 1 [2021-10-20 06:04:49,334 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,335 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-20 06:04:49,335 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,336 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-20 06:04:49,336 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-20 06:04:49,336 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 06:04:49,345 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:04:49,359 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-20 06:04:49,377 INFO L354 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2021-10-20 06:04:49,377 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 48 [2021-10-20 06:04:49,378 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,379 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-10-20 06:04:49,380 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,381 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-10-20 06:04:49,381 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-20 06:04:49,381 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 06:04:49,390 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:04:49,403 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-20 06:04:49,419 INFO L354 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2021-10-20 06:04:49,420 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 32 treesize of output 34 [2021-10-20 06:04:49,420 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,422 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-10-20 06:04:49,422 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,423 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-10-20 06:04:49,423 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-10-20 06:04:49,423 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 06:04:49,432 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,435 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,438 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 208 [2021-10-20 06:04:49,439 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-20 06:04:49,439 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:257, output treesize:208 [2021-10-20 06:04:49,447 INFO L180 QuantifierPusher]: treesize reduction 8, result has 96.2 percent of original size [2021-10-20 06:04:49,452 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 200 [2021-10-20 06:04:49,464 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.9 percent of original size [2021-10-20 06:04:49,465 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:49,466 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,466 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-10-20 06:04:49,467 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:49,468 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,468 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-10-20 06:04:49,469 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:49,470 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,470 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-10-20 06:04:49,474 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 274 [2021-10-20 06:04:49,479 INFO L446 ElimStorePlain]: Different costs {0=[|v_#memory_int_87|], 12=[|v_#memory_$Pointer$.base_118|, |v_#memory_$Pointer$.offset_111|]} [2021-10-20 06:04:49,492 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 15 treesize of output 1 [2021-10-20 06:04:49,493 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,493 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-20 06:04:49,493 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,494 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-20 06:04:49,494 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-20 06:04:49,494 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 06:04:49,503 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,525 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-20 06:04:49,526 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-20 06:04:49,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:04:49,582 INFO L354 Elim1Store]: treesize reduction 28, result has 49.1 percent of original size [2021-10-20 06:04:49,583 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 56 treesize of output 61 [2021-10-20 06:04:49,584 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,586 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:49,587 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,588 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:49,589 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,590 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:49,591 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,591 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-10-20 06:04:49,592 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-10-20 06:04:49,593 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:49,593 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,594 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-10-20 06:04:49,595 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-10-20 06:04:49,595 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:49,596 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,597 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-10-20 06:04:49,598 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-10-20 06:04:49,598 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,600 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:49,601 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,602 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:49,603 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,604 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:49,604 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,605 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-10-20 06:04:49,606 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-10-20 06:04:49,606 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:49,607 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,607 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-10-20 06:04:49,608 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-10-20 06:04:49,609 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:49,610 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,610 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-10-20 06:04:49,611 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-10-20 06:04:49,611 INFO L550 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-10-20 06:04:49,612 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 06:04:49,623 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,645 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-20 06:04:49,648 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-20 06:04:49,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:04:49,707 INFO L354 Elim1Store]: treesize reduction 28, result has 49.1 percent of original size [2021-10-20 06:04:49,707 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 30 treesize of output 47 [2021-10-20 06:04:49,708 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,709 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-10-20 06:04:49,710 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,710 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-10-20 06:04:49,711 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-10-20 06:04:49,711 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 06:04:49,722 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,729 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,731 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:49,732 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,733 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:49,734 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,735 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:49,736 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,736 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-10-20 06:04:49,737 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-10-20 06:04:49,737 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:49,738 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,739 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-10-20 06:04:49,740 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-10-20 06:04:49,740 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:49,741 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,742 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-10-20 06:04:49,747 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 271 [2021-10-20 06:04:49,748 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-10-20 06:04:49,748 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:269, output treesize:269 [2021-10-20 06:04:49,765 INFO L180 QuantifierPusher]: treesize reduction 15, result has 95.5 percent of original size [2021-10-20 06:04:49,773 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:49,773 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,775 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:49,776 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,777 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:49,778 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,779 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:49,779 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,780 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-10-20 06:04:49,780 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-10-20 06:04:49,781 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:49,781 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,782 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-10-20 06:04:49,784 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-10-20 06:04:49,784 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:49,785 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,785 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-10-20 06:04:49,786 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-10-20 06:04:49,786 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:49,787 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,788 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:49,789 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,790 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:49,791 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,791 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:49,792 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,793 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-10-20 06:04:49,793 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:49,794 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,794 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-10-20 06:04:49,795 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-10-20 06:04:49,796 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:49,796 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,797 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-10-20 06:04:49,798 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:49,799 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,799 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:49,800 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,800 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-10-20 06:04:49,801 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:49,802 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,802 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-10-20 06:04:49,803 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 88 [2021-10-20 06:04:49,803 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:49,804 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,805 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-10-20 06:04:49,805 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-10-20 06:04:49,806 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:49,806 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,807 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-10-20 06:04:49,808 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-10-20 06:04:49,809 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:49,810 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,812 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:49,813 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,814 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:49,814 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,815 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-10-20 06:04:49,815 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:49,816 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,817 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-10-20 06:04:49,818 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 144 [2021-10-20 06:04:49,818 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:49,818 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,819 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-10-20 06:04:49,820 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:49,821 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,822 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:49,823 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,823 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:49,824 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,824 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-10-20 06:04:49,825 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:49,826 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,826 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-10-20 06:04:49,827 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-10-20 06:04:49,827 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:49,828 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,828 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-10-20 06:04:49,829 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-10-20 06:04:49,829 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:49,830 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,831 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:49,831 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,832 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:49,833 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,834 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-10-20 06:04:49,834 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-10-20 06:04:49,835 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:49,835 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,836 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-10-20 06:04:49,836 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-10-20 06:04:49,837 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:49,838 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,839 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:49,840 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,841 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-10-20 06:04:49,841 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:49,842 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,843 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-10-20 06:04:49,843 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:49,844 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,844 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-10-20 06:04:49,845 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 119 [2021-10-20 06:04:49,845 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:49,846 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,847 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-10-20 06:04:49,848 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 144 [2021-10-20 06:04:49,848 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:49,849 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,850 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-10-20 06:04:49,850 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:49,850 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,851 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-10-20 06:04:49,852 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:49,853 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,854 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:49,854 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,855 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:49,856 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,856 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-10-20 06:04:49,857 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:49,857 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,858 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-10-20 06:04:49,859 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 88 [2021-10-20 06:04:49,859 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:49,860 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,860 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-10-20 06:04:49,861 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:49,862 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,862 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:49,863 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,863 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-10-20 06:04:49,864 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:49,865 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,865 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-10-20 06:04:49,866 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-10-20 06:04:49,866 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:49,867 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,867 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-10-20 06:04:49,868 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-10-20 06:04:49,869 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:49,869 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,870 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-10-20 06:04:49,875 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 319 [2021-10-20 06:04:49,889 INFO L446 ElimStorePlain]: Different costs {0=[|v_#memory_int_88|], 20=[|v_#memory_$Pointer$.base_119|, |v_#memory_$Pointer$.offset_112|]} [2021-10-20 06:04:49,912 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 15 treesize of output 1 [2021-10-20 06:04:49,913 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,913 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-20 06:04:49,914 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,914 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-20 06:04:49,914 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-20 06:04:49,938 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-10-20 06:04:49,938 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,939 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-20 06:04:49,939 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,940 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-20 06:04:49,940 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-20 06:04:49,966 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-10-20 06:04:49,966 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,967 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-20 06:04:49,968 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,968 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-20 06:04:49,968 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-10-20 06:04:49,988 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-20 06:04:49,989 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,989 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-20 06:04:49,989 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:49,990 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-20 06:04:49,990 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-10-20 06:04:49,990 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 06:04:50,023 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:50,088 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-20 06:04:50,096 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-20 06:04:50,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:04:50,156 INFO L354 Elim1Store]: treesize reduction 48, result has 32.4 percent of original size [2021-10-20 06:04:50,156 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 74 treesize of output 63 [2021-10-20 06:04:50,157 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:50,159 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:50,163 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:50,164 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:50,165 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:50,165 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:50,166 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:50,166 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-10-20 06:04:50,167 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-10-20 06:04:50,167 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:50,167 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:50,168 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-10-20 06:04:50,169 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 84 [2021-10-20 06:04:50,169 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:50,169 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:50,172 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-10-20 06:04:50,173 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-10-20 06:04:50,174 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:50,175 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:50,175 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:50,176 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:50,177 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:50,177 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:50,178 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:50,178 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-10-20 06:04:50,179 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-10-20 06:04:50,179 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:50,191 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:50,191 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-10-20 06:04:50,193 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 84 [2021-10-20 06:04:50,193 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:50,194 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:50,195 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-10-20 06:04:50,195 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-10-20 06:04:50,196 INFO L550 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-10-20 06:04:50,270 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-20 06:04:50,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:04:50,280 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-20 06:04:50,316 INFO L354 Elim1Store]: treesize reduction 29, result has 27.5 percent of original size [2021-10-20 06:04:50,316 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 63 treesize of output 56 [2021-10-20 06:04:50,317 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:50,320 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-10-20 06:04:50,320 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:50,321 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-10-20 06:04:50,321 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-10-20 06:04:50,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:04:50,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:04:50,364 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:50,364 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 28 [2021-10-20 06:04:50,365 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:50,371 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-10-20 06:04:50,371 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:50,371 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-10-20 06:04:50,371 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-10-20 06:04:50,372 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 06:04:50,408 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:50,454 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-20 06:04:50,457 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-20 06:04:50,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:04:50,497 INFO L354 Elim1Store]: treesize reduction 56, result has 21.1 percent of original size [2021-10-20 06:04:50,498 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 44 treesize of output 41 [2021-10-20 06:04:50,499 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:50,501 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-10-20 06:04:50,501 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:50,502 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-10-20 06:04:50,502 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-10-20 06:04:50,552 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-20 06:04:50,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:04:50,558 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-20 06:04:50,582 INFO L354 Elim1Store]: treesize reduction 29, result has 27.5 percent of original size [2021-10-20 06:04:50,582 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 37 treesize of output 42 [2021-10-20 06:04:50,582 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:50,584 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-10-20 06:04:50,585 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:50,585 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-10-20 06:04:50,585 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-10-20 06:04:50,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:04:50,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:04:50,620 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:50,620 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 28 [2021-10-20 06:04:50,621 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:50,622 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-10-20 06:04:50,622 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:50,622 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-10-20 06:04:50,623 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-10-20 06:04:50,623 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 06:04:50,650 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:50,657 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:50,658 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:50,658 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:50,658 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-10-20 06:04:50,664 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:50,665 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:50,666 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:50,667 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:50,668 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:50,669 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:50,669 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-10-20 06:04:50,670 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-10-20 06:04:50,670 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:50,671 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:50,671 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-10-20 06:04:50,673 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 84 [2021-10-20 06:04:50,673 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:50,674 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:50,674 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-10-20 06:04:50,686 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 744 [2021-10-20 06:04:50,689 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 3 dim-2 vars, End of recursive call: 2 dim-0 vars, and 3 xjuncts. [2021-10-20 06:04:50,689 INFO L247 ElimStorePlain]: Needed 11 recursive calls to eliminate 4 variables, input treesize:1174, output treesize:740 [2021-10-20 06:04:50,703 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:50,711 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:50,712 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:50,713 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:50,714 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:50,715 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:50,716 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:50,716 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-10-20 06:04:50,717 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-10-20 06:04:50,717 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:50,718 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:50,719 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-10-20 06:04:50,720 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 84 [2021-10-20 06:04:50,720 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:50,721 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:50,722 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-10-20 06:04:50,723 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:50,723 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:50,724 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-10-20 06:04:50,735 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 720 [2021-10-20 06:04:50,775 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:50,776 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:50,778 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:50,779 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-10-20 06:04:50,780 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 06:04:50,781 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:04:50,781 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-10-20 06:04:50,807 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1533 [2021-10-20 06:04:50,848 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-20 06:04:59,609 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-20 06:04:59,609 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-10-20 06:04:59,610 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-10-20 06:04:59,610 ERROR L172 FreeRefinementEngine]: Strategy SIFA_TAIPAN failed to provide any proof altough trace is infeasible [2021-10-20 06:04:59,610 INFO L626 BasicCegarLoop]: Counterexample might be feasible [2021-10-20 06:04:59,615 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28REQUIRES_VIOLATION [2021-10-20 06:04:59,616 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE [2021-10-20 06:04:59,617 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE [2021-10-20 06:04:59,617 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE [2021-10-20 06:04:59,617 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE [2021-10-20 06:04:59,617 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATION [2021-10-20 06:04:59,617 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATION [2021-10-20 06:04:59,617 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATION [2021-10-20 06:04:59,617 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATION [2021-10-20 06:04:59,617 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATION [2021-10-20 06:04:59,618 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATION [2021-10-20 06:04:59,618 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATION [2021-10-20 06:04:59,618 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATION [2021-10-20 06:04:59,618 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATION [2021-10-20 06:04:59,618 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATION [2021-10-20 06:04:59,618 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATION [2021-10-20 06:04:59,618 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATION [2021-10-20 06:04:59,618 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16REQUIRES_VIOLATION [2021-10-20 06:04:59,618 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17REQUIRES_VIOLATION [2021-10-20 06:04:59,618 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18REQUIRES_VIOLATION [2021-10-20 06:04:59,618 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19REQUIRES_VIOLATION [2021-10-20 06:04:59,618 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20REQUIRES_VIOLATION [2021-10-20 06:04:59,618 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21REQUIRES_VIOLATION [2021-10-20 06:04:59,619 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22REQUIRES_VIOLATION [2021-10-20 06:04:59,619 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23REQUIRES_VIOLATION [2021-10-20 06:04:59,619 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24REQUIRES_VIOLATION [2021-10-20 06:04:59,619 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25REQUIRES_VIOLATION [2021-10-20 06:04:59,619 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26REQUIRES_VIOLATION [2021-10-20 06:04:59,619 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27REQUIRES_VIOLATION [2021-10-20 06:04:59,619 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29REQUIRES_VIOLATION [2021-10-20 06:04:59,619 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30REQUIRES_VIOLATION [2021-10-20 06:04:59,619 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31REQUIRES_VIOLATION [2021-10-20 06:04:59,619 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE [2021-10-20 06:04:59,619 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_FREE [2021-10-20 06:04:59,619 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_FREE [2021-10-20 06:04:59,620 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_FREE [2021-10-20 06:04:59,620 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE [2021-10-20 06:04:59,620 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE [2021-10-20 06:04:59,620 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr38REQUIRES_VIOLATION [2021-10-20 06:04:59,620 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr39REQUIRES_VIOLATION [2021-10-20 06:04:59,620 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE [2021-10-20 06:04:59,620 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE [2021-10-20 06:04:59,620 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_FREE [2021-10-20 06:04:59,620 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr43REQUIRES_VIOLATION [2021-10-20 06:04:59,620 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr44REQUIRES_VIOLATION [2021-10-20 06:04:59,620 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr45REQUIRES_VIOLATION [2021-10-20 06:04:59,620 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr46REQUIRES_VIOLATION [2021-10-20 06:04:59,621 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_LEAK [2021-10-20 06:04:59,646 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-10-20 06:04:59,821 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2021-10-20 06:04:59,826 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-20 06:04:59,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 06:04:59 BoogieIcfgContainer [2021-10-20 06:04:59,841 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-20 06:04:59,842 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-20 06:04:59,842 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-20 06:04:59,842 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-20 06:04:59,842 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:00:50" (3/4) ... [2021-10-20 06:04:59,845 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-20 06:04:59,846 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-20 06:04:59,846 INFO L168 Benchmark]: Toolchain (without parser) took 250843.77 ms. Allocated memory was 94.4 MB in the beginning and 367.0 MB in the end (delta: 272.6 MB). Free memory was 62.8 MB in the beginning and 302.0 MB in the end (delta: -239.1 MB). Peak memory consumption was 34.5 MB. Max. memory is 16.1 GB. [2021-10-20 06:04:59,846 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 71.3 MB. Free memory is still 47.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-20 06:04:59,847 INFO L168 Benchmark]: CACSL2BoogieTranslator took 558.16 ms. Allocated memory is still 94.4 MB. Free memory was 62.6 MB in the beginning and 43.7 MB in the end (delta: 19.0 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2021-10-20 06:04:59,847 INFO L168 Benchmark]: Boogie Procedure Inliner took 82.94 ms. Allocated memory is still 94.4 MB. Free memory was 43.5 MB in the beginning and 41.3 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-20 06:04:59,847 INFO L168 Benchmark]: Boogie Preprocessor took 35.57 ms. Allocated memory is still 94.4 MB. Free memory was 41.3 MB in the beginning and 39.4 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-20 06:04:59,847 INFO L168 Benchmark]: RCFGBuilder took 944.83 ms. Allocated memory is still 94.4 MB. Free memory was 39.4 MB in the beginning and 50.0 MB in the end (delta: -10.6 MB). Peak memory consumption was 9.9 MB. Max. memory is 16.1 GB. [2021-10-20 06:04:59,847 INFO L168 Benchmark]: TraceAbstraction took 249209.16 ms. Allocated memory was 94.4 MB in the beginning and 367.0 MB in the end (delta: 272.6 MB). Free memory was 49.8 MB in the beginning and 302.5 MB in the end (delta: -252.7 MB). Peak memory consumption was 238.5 MB. Max. memory is 16.1 GB. [2021-10-20 06:04:59,848 INFO L168 Benchmark]: Witness Printer took 4.00 ms. Allocated memory is still 367.0 MB. Free memory was 302.5 MB in the beginning and 302.0 MB in the end (delta: 493.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-20 06:04:59,849 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 71.3 MB. Free memory is still 47.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 558.16 ms. Allocated memory is still 94.4 MB. Free memory was 62.6 MB in the beginning and 43.7 MB in the end (delta: 19.0 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 82.94 ms. Allocated memory is still 94.4 MB. Free memory was 43.5 MB in the beginning and 41.3 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 35.57 ms. Allocated memory is still 94.4 MB. Free memory was 41.3 MB in the beginning and 39.4 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 944.83 ms. Allocated memory is still 94.4 MB. Free memory was 39.4 MB in the beginning and 50.0 MB in the end (delta: -10.6 MB). Peak memory consumption was 9.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 249209.16 ms. Allocated memory was 94.4 MB in the beginning and 367.0 MB in the end (delta: 272.6 MB). Free memory was 49.8 MB in the beginning and 302.5 MB in the end (delta: -252.7 MB). Peak memory consumption was 238.5 MB. Max. memory is 16.1 GB. * Witness Printer took 4.00 ms. Allocated memory is still 367.0 MB. Free memory was 302.5 MB in the beginning and 302.0 MB in the end (delta: 493.0 kB). 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: 667]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L687] static struct L1 *list; [L641] void *ptr = malloc(nmemb * size); [L642] return memset(ptr, 0, nmemb * size); [L676] struct L1 *item = calloc_model(1U, sizeof *item); [L677] COND FALSE !(!item) [L641] void *ptr = malloc(nmemb * size); [L642] return memset(ptr, 0, nmemb * size); [L655] struct L2 *item = calloc_model(1U, sizeof *item); [L656] COND FALSE !(!item) [L658] item->proto = malloc(119U) [L659] EXPR item->proto [L659] COND FALSE !(!item->proto) [L661] EXPR \read(**list) [L661] item->next = *list [L662] *list = item [L681] COND FALSE !(__VERIFIER_nondet_int()) [L682] EXPR \read(**list) [L682] item->next = *list [L683] *list = item [L690] COND FALSE !(__VERIFIER_nondet_int()) [L692] EXPR \read(*list) [L692] EXPR list->next [L692] struct L1 *next = list->next; [L693] EXPR \read(*list) [L693] list->l2 [L667] list->next - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 659]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 659]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 661]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 661]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 661]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 661]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 662]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 662]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 683]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 683]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 667]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 669]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 669]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 669]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 695]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 695]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 697]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 697]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 685]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 90 locations, 48 error locations. Started 1 CEGAR loops. OverallTime: 249130.1ms, OverallIterations: 17, TraceHistogramMax: 1, EmptinessCheckTime: 21.1ms, AutomataDifference: 126798.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 11.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 702 SDtfs, 6755 SDslu, 1435 SDs, 0 SdLazy, 3203 SolverSat, 362 SolverUnsat, 14 SolverUnknown, 0 SolverNotchecked, 69622.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 555 GetRequests, 331 SyntacticMatches, 6 SemanticMatches, 218 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 630 ImplicationChecksByTransitivity, 86094.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=90occurred in iteration=0, InterpolantAutomatonStates: 126, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 106.1ms AutomataMinimizationTime, 16 MinimizatonAttempts, 715 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 141.7ms SsaConstructionTime, 459.3ms SatisfiabilityAnalysisTime, 27086.9ms InterpolantComputationTime, 195 NumberOfCodeBlocks, 195 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 362 ConstructedInterpolants, 107 QuantifiedInterpolants, 6193 SizeOfPredicates, 171 NumberOfNonLiveVariables, 2420 ConjunctsInSsa, 302 ConjunctsInUnsatCore, 28 InterpolantComputations, 28 PerfectInterpolantSequences, 4/4 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: OVERALL_TIME[ms]: 2022, ICFG_INTERPRETER_ENTERED_PROCEDURES: 2, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 16, DAG_INTERPRETER_EARLY_EXITS: 2, TOOLS_POST_APPLICATIONS: 17, TOOLS_POST_TIME[ms]: 1507, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME[ms]: 0, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME[ms]: 0, TOOLS_QUANTIFIERELIM_APPLICATIONS: 17, TOOLS_QUANTIFIERELIM_TIME[ms]: 1500, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 753, FLUID_QUERY_TIME[ms]: 4, FLUID_QUERIES: 40, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 0, DOMAIN_JOIN_TIME[ms]: 0, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 2, DOMAIN_WIDEN_TIME[ms]: 290, DOMAIN_ISSUBSETEQ_APPLICATIONS: 3, DOMAIN_ISSUBSETEQ_TIME[ms]: 64, DOMAIN_ISBOTTOM_APPLICATIONS: 16, DOMAIN_ISBOTTOM_TIME[ms]: 86, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 1307, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 1307, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 3, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME[ms]: 0, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 0, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 2, PATH_EXPR_TIME[ms]: 4, REGEX_TO_DAG_TIME[ms]: 4, DAG_COMPRESSION_TIME[ms]: 31, DAG_COMPRESSION_PROCESSED_NODES: 683, DAG_COMPRESSION_RETAINED_NODES: 109, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-20 06:05:00,062 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/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 [2021-10-20 06:05:02,380 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-20 06:05:02,388 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-20 06:05:02,429 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-20 06:05:02,430 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-20 06:05:02,431 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-20 06:05:02,433 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-20 06:05:02,436 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-20 06:05:02,438 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-20 06:05:02,440 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-20 06:05:02,441 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-20 06:05:02,443 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-20 06:05:02,443 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-20 06:05:02,445 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-20 06:05:02,446 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-20 06:05:02,448 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-20 06:05:02,449 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-20 06:05:02,450 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-20 06:05:02,453 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-20 06:05:02,455 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-20 06:05:02,458 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-20 06:05:02,459 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-20 06:05:02,461 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-20 06:05:02,462 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-20 06:05:02,466 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-20 06:05:02,467 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-20 06:05:02,467 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-20 06:05:02,468 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-20 06:05:02,469 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-20 06:05:02,470 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-20 06:05:02,471 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-20 06:05:02,472 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-20 06:05:02,473 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-20 06:05:02,474 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-20 06:05:02,475 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-20 06:05:02,476 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-20 06:05:02,490 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-20 06:05:02,491 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-20 06:05:02,491 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-20 06:05:02,492 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-20 06:05:02,493 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-20 06:05:02,494 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2021-10-20 06:05:02,522 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-20 06:05:02,522 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-20 06:05:02,523 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-20 06:05:02,523 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-20 06:05:02,524 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-20 06:05:02,524 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-20 06:05:02,524 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-20 06:05:02,524 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-20 06:05:02,525 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-20 06:05:02,525 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-20 06:05:02,526 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-20 06:05:02,526 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-20 06:05:02,526 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-20 06:05:02,527 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-20 06:05:02,527 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-20 06:05:02,527 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-20 06:05:02,527 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-20 06:05:02,527 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-20 06:05:02,528 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-20 06:05:02,528 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-20 06:05:02,528 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-20 06:05:02,528 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-20 06:05:02,529 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-20 06:05:02,529 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-20 06:05:02,529 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-20 06:05:02,529 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-20 06:05:02,530 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-20 06:05:02,530 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-20 06:05:02,530 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-20 06:05:02,530 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-20 06:05:02,531 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-20 06:05:02,531 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-20 06:05:02,531 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-20 06:05:02,531 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-20 06:05:02,532 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-20 06:05:02,532 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-20 06:05:02,532 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_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4a489d3e73f8fa53a32414f65b592ba5db703c103e5e16e188592c7c2dfeab95 [2021-10-20 06:05:02,889 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-20 06:05:02,914 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-20 06:05:02,919 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-20 06:05:02,921 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-20 06:05:02,922 INFO L275 PluginConnector]: CDTParser initialized [2021-10-20 06:05:02,923 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/../../sv-benchmarks/c/memsafety/test-0219.i [2021-10-20 06:05:02,999 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/data/5818c55e0/24d49c63b0e349eea9891544fe11a930/FLAG789914c99 [2021-10-20 06:05:03,593 INFO L306 CDTParser]: Found 1 translation units. [2021-10-20 06:05:03,598 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/sv-benchmarks/c/memsafety/test-0219.i [2021-10-20 06:05:03,617 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/data/5818c55e0/24d49c63b0e349eea9891544fe11a930/FLAG789914c99 [2021-10-20 06:05:03,855 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/data/5818c55e0/24d49c63b0e349eea9891544fe11a930 [2021-10-20 06:05:03,863 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-20 06:05:03,865 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-20 06:05:03,868 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-20 06:05:03,869 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-20 06:05:03,872 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-20 06:05:03,873 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:05:03" (1/1) ... [2021-10-20 06:05:03,875 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25c6236c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:05:03, skipping insertion in model container [2021-10-20 06:05:03,876 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:05:03" (1/1) ... [2021-10-20 06:05:03,883 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-20 06:05:03,957 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-20 06:05:04,401 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-20 06:05:04,425 INFO L203 MainTranslator]: Completed pre-run [2021-10-20 06:05:04,489 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-20 06:05:04,552 INFO L208 MainTranslator]: Completed translation [2021-10-20 06:05:04,552 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:05:04 WrapperNode [2021-10-20 06:05:04,553 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-20 06:05:04,554 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-20 06:05:04,555 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-20 06:05:04,555 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-20 06:05:04,563 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:05:04" (1/1) ... [2021-10-20 06:05:04,602 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:05:04" (1/1) ... [2021-10-20 06:05:04,650 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-20 06:05:04,651 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-20 06:05:04,651 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-20 06:05:04,651 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-20 06:05:04,660 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:05:04" (1/1) ... [2021-10-20 06:05:04,661 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:05:04" (1/1) ... [2021-10-20 06:05:04,677 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:05:04" (1/1) ... [2021-10-20 06:05:04,679 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:05:04" (1/1) ... [2021-10-20 06:05:04,695 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:05:04" (1/1) ... [2021-10-20 06:05:04,709 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:05:04" (1/1) ... [2021-10-20 06:05:04,712 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:05:04" (1/1) ... [2021-10-20 06:05:04,722 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-20 06:05:04,729 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-20 06:05:04,729 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-20 06:05:04,729 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-20 06:05:04,730 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:05:04" (1/1) ... [2021-10-20 06:05:04,737 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-20 06:05:04,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 [2021-10-20 06:05:04,760 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-20 06:05:04,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-20 06:05:04,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-20 06:05:04,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-20 06:05:04,825 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-20 06:05:04,825 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-20 06:05:04,825 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-20 06:05:04,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-20 06:05:04,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-20 06:05:04,826 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-20 06:05:04,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-20 06:05:05,589 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-20 06:05:05,589 INFO L299 CfgBuilder]: Removed 22 assume(true) statements. [2021-10-20 06:05:05,591 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:05:05 BoogieIcfgContainer [2021-10-20 06:05:05,591 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-20 06:05:05,593 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-20 06:05:05,593 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-20 06:05:05,596 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-20 06:05:05,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 06:05:03" (1/3) ... [2021-10-20 06:05:05,597 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4062e7d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 06:05:05, skipping insertion in model container [2021-10-20 06:05:05,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:05:04" (2/3) ... [2021-10-20 06:05:05,598 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4062e7d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 06:05:05, skipping insertion in model container [2021-10-20 06:05:05,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:05:05" (3/3) ... [2021-10-20 06:05:05,600 INFO L111 eAbstractionObserver]: Analyzing ICFG test-0219.i [2021-10-20 06:05:05,605 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-20 06:05:05,606 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 48 error locations. [2021-10-20 06:05:05,650 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-20 06:05:05,656 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 [2021-10-20 06:05:05,657 INFO L340 AbstractCegarLoop]: Starting to check reachability of 48 error locations. [2021-10-20 06:05:05,674 INFO L276 IsEmpty]: Start isEmpty. Operand has 106 states, 57 states have (on average 2.0701754385964914) internal successors, (118), 105 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:05:05,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-20 06:05:05,688 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 06:05:05,689 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-20 06:05:05,689 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 45 more)] === [2021-10-20 06:05:05,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 06:05:05,695 INFO L82 PathProgramCache]: Analyzing trace with hash 925636, now seen corresponding path program 1 times [2021-10-20 06:05:05,708 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 06:05:05,709 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1004655309] [2021-10-20 06:05:05,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:05:05,710 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 06:05:05,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 06:05:05,727 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 06:05:05,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-20 06:05:05,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 06:05:05,870 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-20 06:05:05,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 06:05:05,965 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 [2021-10-20 06:05:05,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:05:05,978 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 06:05:06,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:05:06,014 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 06:05:06,014 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1004655309] [2021-10-20 06:05:06,015 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1004655309] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 06:05:06,015 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 06:05:06,016 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-20 06:05:06,017 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865977709] [2021-10-20 06:05:06,029 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-20 06:05:06,029 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 06:05:06,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-20 06:05:06,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 06:05:06,044 INFO L87 Difference]: Start difference. First operand has 106 states, 57 states have (on average 2.0701754385964914) internal successors, (118), 105 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 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) [2021-10-20 06:05:06,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 06:05:06,357 INFO L93 Difference]: Finished difference Result 132 states and 137 transitions. [2021-10-20 06:05:06,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-20 06:05:06,360 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 [2021-10-20 06:05:06,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 06:05:06,372 INFO L225 Difference]: With dead ends: 132 [2021-10-20 06:05:06,372 INFO L226 Difference]: Without dead ends: 130 [2021-10-20 06:05:06,373 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 06:05:06,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2021-10-20 06:05:06,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 102. [2021-10-20 06:05:06,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 56 states have (on average 1.9107142857142858) internal successors, (107), 101 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:05:06,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 107 transitions. [2021-10-20 06:05:06,430 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 107 transitions. Word has length 4 [2021-10-20 06:05:06,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 06:05:06,430 INFO L470 AbstractCegarLoop]: Abstraction has 102 states and 107 transitions. [2021-10-20 06:05:06,431 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) [2021-10-20 06:05:06,431 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 107 transitions. [2021-10-20 06:05:06,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-20 06:05:06,431 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 06:05:06,432 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-20 06:05:06,448 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-20 06:05:06,643 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 06:05:06,644 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 45 more)] === [2021-10-20 06:05:06,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 06:05:06,645 INFO L82 PathProgramCache]: Analyzing trace with hash 28694756, now seen corresponding path program 1 times [2021-10-20 06:05:06,646 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 06:05:06,646 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [609573620] [2021-10-20 06:05:06,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:05:06,647 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 06:05:06,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 06:05:06,650 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 06:05:06,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-20 06:05:06,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 06:05:06,733 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-20 06:05:06,734 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 06:05:06,787 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 [2021-10-20 06:05:06,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:05:06,846 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 06:05:06,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:05:06,938 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 06:05:06,939 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [609573620] [2021-10-20 06:05:06,939 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [609573620] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 06:05:06,939 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 06:05:06,939 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-20 06:05:06,940 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887184676] [2021-10-20 06:05:06,941 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-20 06:05:06,941 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 06:05:06,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-20 06:05:06,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-20 06:05:06,943 INFO L87 Difference]: Start difference. First operand 102 states and 107 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) [2021-10-20 06:05:07,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 06:05:07,542 INFO L93 Difference]: Finished difference Result 102 states and 107 transitions. [2021-10-20 06:05:07,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-20 06:05:07,544 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 [2021-10-20 06:05:07,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 06:05:07,545 INFO L225 Difference]: With dead ends: 102 [2021-10-20 06:05:07,545 INFO L226 Difference]: Without dead ends: 102 [2021-10-20 06:05:07,546 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 44.1ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-20 06:05:07,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2021-10-20 06:05:07,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 100. [2021-10-20 06:05:07,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 56 states have (on average 1.875) internal successors, (105), 99 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:05:07,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 105 transitions. [2021-10-20 06:05:07,556 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 105 transitions. Word has length 5 [2021-10-20 06:05:07,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 06:05:07,556 INFO L470 AbstractCegarLoop]: Abstraction has 100 states and 105 transitions. [2021-10-20 06:05:07,557 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) [2021-10-20 06:05:07,557 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 105 transitions. [2021-10-20 06:05:07,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-20 06:05:07,558 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 06:05:07,558 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 06:05:07,566 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-20 06:05:07,762 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 06:05:07,763 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 45 more)] === [2021-10-20 06:05:07,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 06:05:07,764 INFO L82 PathProgramCache]: Analyzing trace with hash -1069793572, now seen corresponding path program 1 times [2021-10-20 06:05:07,765 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 06:05:07,765 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1897879105] [2021-10-20 06:05:07,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:05:07,766 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 06:05:07,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 06:05:07,767 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 06:05:07,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-20 06:05:07,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 06:05:07,885 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-20 06:05:07,887 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 06:05:07,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:05:07,967 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 06:05:08,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:05:08,042 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 06:05:08,043 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1897879105] [2021-10-20 06:05:08,043 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1897879105] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 06:05:08,043 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 06:05:08,044 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-20 06:05:08,045 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069184624] [2021-10-20 06:05:08,045 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-20 06:05:08,046 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 06:05:08,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-20 06:05:08,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-20 06:05:08,051 INFO L87 Difference]: Start difference. First operand 100 states and 105 transitions. Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:05:08,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 06:05:08,158 INFO L93 Difference]: Finished difference Result 105 states and 110 transitions. [2021-10-20 06:05:08,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-20 06:05:08,159 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 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 [2021-10-20 06:05:08,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 06:05:08,161 INFO L225 Difference]: With dead ends: 105 [2021-10-20 06:05:08,164 INFO L226 Difference]: Without dead ends: 105 [2021-10-20 06:05:08,165 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 35.7ms TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2021-10-20 06:05:08,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2021-10-20 06:05:08,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 104. [2021-10-20 06:05:08,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 60 states have (on average 1.8166666666666667) internal successors, (109), 103 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:05:08,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 109 transitions. [2021-10-20 06:05:08,181 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 109 transitions. Word has length 18 [2021-10-20 06:05:08,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 06:05:08,182 INFO L470 AbstractCegarLoop]: Abstraction has 104 states and 109 transitions. [2021-10-20 06:05:08,182 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:05:08,183 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 109 transitions. [2021-10-20 06:05:08,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-20 06:05:08,184 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 06:05:08,184 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 06:05:08,196 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-10-20 06:05:08,398 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 06:05:08,398 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 45 more)] === [2021-10-20 06:05:08,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 06:05:08,399 INFO L82 PathProgramCache]: Analyzing trace with hash 179406396, now seen corresponding path program 1 times [2021-10-20 06:05:08,399 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 06:05:08,399 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1813274147] [2021-10-20 06:05:08,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:05:08,400 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 06:05:08,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 06:05:08,402 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 06:05:08,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-20 06:05:08,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 06:05:08,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-20 06:05:08,561 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 06:05:08,683 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-20 06:05:08,683 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 06:05:08,837 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-20 06:05:08,838 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 06:05:08,838 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1813274147] [2021-10-20 06:05:08,838 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1813274147] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-20 06:05:08,838 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [914017801] [2021-10-20 06:05:08,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:05:08,839 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-20 06:05:08,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/cvc4 [2021-10-20 06:05:08,841 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-20 06:05:08,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2021-10-20 06:05:09,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 06:05:09,080 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-20 06:05:09,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 06:05:09,176 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-20 06:05:09,176 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 06:05:09,246 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-20 06:05:09,247 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [914017801] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-20 06:05:09,247 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1925911077] [2021-10-20 06:05:09,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:05:09,248 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-20 06:05:09,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 [2021-10-20 06:05:09,250 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-20 06:05:09,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-20 06:05:09,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 06:05:09,418 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-20 06:05:09,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 06:05:09,449 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 [2021-10-20 06:05:09,567 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-10-20 06:05:09,567 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 23 treesize of output 30 [2021-10-20 06:05:09,638 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-20 06:05:09,638 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 06:05:24,064 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-20 06:05:24,064 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1925911077] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 06:05:24,064 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 4 imperfect interpolant sequences. [2021-10-20 06:05:24,065 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [6, 6, 6, 6] total 17 [2021-10-20 06:05:24,065 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755838763] [2021-10-20 06:05:24,066 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-20 06:05:24,066 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 06:05:24,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-20 06:05:24,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=216, Unknown=4, NotChecked=0, Total=272 [2021-10-20 06:05:24,067 INFO L87 Difference]: Start difference. First operand 104 states and 109 transitions. Second operand has 9 states, 8 states have (on average 3.75) internal successors, (30), 9 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) [2021-10-20 06:05:26,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 06:05:26,267 INFO L93 Difference]: Finished difference Result 138 states and 144 transitions. [2021-10-20 06:05:26,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-20 06:05:26,268 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.75) internal successors, (30), 9 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 22 [2021-10-20 06:05:26,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 06:05:26,269 INFO L225 Difference]: With dead ends: 138 [2021-10-20 06:05:26,269 INFO L226 Difference]: Without dead ends: 138 [2021-10-20 06:05:26,269 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 112 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 16032.6ms TimeCoverageRelationStatistics Valid=86, Invalid=330, Unknown=4, NotChecked=0, Total=420 [2021-10-20 06:05:26,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2021-10-20 06:05:26,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 101. [2021-10-20 06:05:26,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 60 states have (on average 1.7666666666666666) internal successors, (106), 100 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:05:26,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 106 transitions. [2021-10-20 06:05:26,277 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 106 transitions. Word has length 22 [2021-10-20 06:05:26,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 06:05:26,278 INFO L470 AbstractCegarLoop]: Abstraction has 101 states and 106 transitions. [2021-10-20 06:05:26,278 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.75) internal successors, (30), 9 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) [2021-10-20 06:05:26,278 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 106 transitions. [2021-10-20 06:05:26,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-20 06:05:26,279 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 06:05:26,279 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 06:05:26,294 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2021-10-20 06:05:26,507 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-10-20 06:05:26,694 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-20 06:05:26,887 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/cvc4 --incremental --print-success --lang smt,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 06:05:26,887 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 45 more)] === [2021-10-20 06:05:26,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 06:05:26,887 INFO L82 PathProgramCache]: Analyzing trace with hash 179406397, now seen corresponding path program 1 times [2021-10-20 06:05:26,888 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 06:05:26,888 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [842684482] [2021-10-20 06:05:26,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:05:26,888 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 06:05:26,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 06:05:26,891 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 06:05:26,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-20 06:05:27,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 06:05:27,086 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-20 06:05:27,087 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 06:05:27,192 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-20 06:05:27,192 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 06:05:27,348 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-20 06:05:27,348 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 06:05:27,348 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [842684482] [2021-10-20 06:05:27,349 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [842684482] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-20 06:05:27,349 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [678036532] [2021-10-20 06:05:27,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:05:27,349 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-20 06:05:27,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/cvc4 [2021-10-20 06:05:27,352 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-20 06:05:27,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2021-10-20 06:05:27,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 06:05:27,640 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-20 06:05:27,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 06:05:27,723 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-20 06:05:27,723 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 06:05:27,791 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-20 06:05:27,791 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [678036532] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-20 06:05:27,792 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [621554164] [2021-10-20 06:05:27,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:05:27,792 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-20 06:05:27,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 [2021-10-20 06:05:27,793 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-20 06:05:27,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-10-20 06:05:28,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 06:05:28,007 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-20 06:05:28,009 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 06:05:28,088 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-20 06:05:28,088 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 06:05:28,227 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-20 06:05:28,228 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [621554164] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-20 06:05:28,228 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-20 06:05:28,228 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 6, 6] total 12 [2021-10-20 06:05:28,228 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246754364] [2021-10-20 06:05:28,229 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-20 06:05:28,229 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 06:05:28,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-20 06:05:28,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-10-20 06:05:28,230 INFO L87 Difference]: Start difference. First operand 101 states and 106 transitions. Second operand has 12 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:05:28,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 06:05:28,555 INFO L93 Difference]: Finished difference Result 112 states and 117 transitions. [2021-10-20 06:05:28,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-20 06:05:28,556 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-10-20 06:05:28,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 06:05:28,557 INFO L225 Difference]: With dead ends: 112 [2021-10-20 06:05:28,558 INFO L226 Difference]: Without dead ends: 112 [2021-10-20 06:05:28,558 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 230.8ms TimeCoverageRelationStatistics Valid=90, Invalid=150, Unknown=0, NotChecked=0, Total=240 [2021-10-20 06:05:28,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2021-10-20 06:05:28,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 109. [2021-10-20 06:05:28,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 68 states have (on average 1.6764705882352942) internal successors, (114), 108 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:05:28,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 114 transitions. [2021-10-20 06:05:28,566 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 114 transitions. Word has length 22 [2021-10-20 06:05:28,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 06:05:28,566 INFO L470 AbstractCegarLoop]: Abstraction has 109 states and 114 transitions. [2021-10-20 06:05:28,566 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:05:28,566 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 114 transitions. [2021-10-20 06:05:28,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-20 06:05:28,567 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 06:05:28,568 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 06:05:28,574 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2021-10-20 06:05:28,778 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-10-20 06:05:28,992 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2021-10-20 06:05:29,173 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/cvc4 --incremental --print-success --lang smt,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-20 06:05:29,173 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 45 more)] === [2021-10-20 06:05:29,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 06:05:29,174 INFO L82 PathProgramCache]: Analyzing trace with hash 1164168445, now seen corresponding path program 2 times [2021-10-20 06:05:29,174 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 06:05:29,174 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1999150604] [2021-10-20 06:05:29,174 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-20 06:05:29,174 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 06:05:29,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 06:05:29,175 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 06:05:29,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-20 06:05:29,390 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-20 06:05:29,390 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-20 06:05:29,396 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-20 06:05:29,398 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 06:05:29,452 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 [2021-10-20 06:05:29,461 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 [2021-10-20 06:05:29,704 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-10-20 06:05:29,704 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 27 treesize of output 29 [2021-10-20 06:05:29,717 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-10-20 06:05:29,718 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 22 [2021-10-20 06:05:29,750 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-10-20 06:05:29,750 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 06:05:36,274 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_l2_insert_#t~malloc8.base_19| (_ BitVec 32))) (or (let ((.cse0 (bvadd |c_ULTIMATE.start_calloc_model_#res.offset| (_ bv4 32)))) (and (bvule .cse0 (select (store |c_#length| |v_ULTIMATE.start_l2_insert_#t~malloc8.base_19| (_ bv119 32)) |c_ULTIMATE.start_calloc_model_#res.base|)) (bvule |c_ULTIMATE.start_calloc_model_#res.offset| .cse0))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_l2_insert_#t~malloc8.base_19|))))) is different from false [2021-10-20 06:05:37,078 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-10-20 06:05:37,078 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 06:05:37,079 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1999150604] [2021-10-20 06:05:37,079 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1999150604] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 06:05:37,079 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 06:05:37,079 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-10-20 06:05:37,079 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140526410] [2021-10-20 06:05:37,080 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-20 06:05:37,080 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 06:05:37,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-20 06:05:37,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=51, Unknown=3, NotChecked=14, Total=90 [2021-10-20 06:05:37,081 INFO L87 Difference]: Start difference. First operand 109 states and 114 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) [2021-10-20 06:05:44,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 06:05:44,448 INFO L93 Difference]: Finished difference Result 154 states and 160 transitions. [2021-10-20 06:05:44,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-20 06:05:44,450 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 30 [2021-10-20 06:05:44,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 06:05:44,451 INFO L225 Difference]: With dead ends: 154 [2021-10-20 06:05:44,451 INFO L226 Difference]: Without dead ends: 154 [2021-10-20 06:05:44,452 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 51 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 8872.1ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=4, NotChecked=24, Total=210 [2021-10-20 06:05:44,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2021-10-20 06:05:44,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 106. [2021-10-20 06:05:44,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 68 states have (on average 1.6323529411764706) internal successors, (111), 105 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:05:44,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 111 transitions. [2021-10-20 06:05:44,459 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 111 transitions. Word has length 30 [2021-10-20 06:05:44,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 06:05:44,460 INFO L470 AbstractCegarLoop]: Abstraction has 106 states and 111 transitions. [2021-10-20 06:05:44,460 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) [2021-10-20 06:05:44,460 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 111 transitions. [2021-10-20 06:05:44,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-10-20 06:05:44,462 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 06:05:44,462 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 06:05:44,487 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-20 06:05:44,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 06:05:44,687 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 45 more)] === [2021-10-20 06:05:44,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 06:05:44,688 INFO L82 PathProgramCache]: Analyzing trace with hash 612907455, now seen corresponding path program 1 times [2021-10-20 06:05:44,689 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 06:05:44,689 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1531119206] [2021-10-20 06:05:44,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:05:44,689 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 06:05:44,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 06:05:44,691 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 06:05:44,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-10-20 06:05:44,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 06:05:44,959 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-20 06:05:44,962 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 06:05:45,299 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-10-20 06:05:45,299 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 06:05:45,785 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-10-20 06:05:45,785 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 06:05:45,785 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1531119206] [2021-10-20 06:05:45,785 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1531119206] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-20 06:05:45,786 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1005962678] [2021-10-20 06:05:45,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:05:45,786 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-20 06:05:45,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/cvc4 [2021-10-20 06:05:45,787 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-20 06:05:45,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2021-10-20 06:05:46,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 06:05:46,212 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-20 06:05:46,214 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 06:05:46,388 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-10-20 06:05:46,389 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 06:05:46,535 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-10-20 06:05:46,535 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1005962678] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-20 06:05:46,535 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [691229977] [2021-10-20 06:05:46,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:05:46,536 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-20 06:05:46,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 [2021-10-20 06:05:46,537 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-20 06:05:46,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-10-20 06:05:46,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 06:05:46,868 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-20 06:05:46,870 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 06:05:47,036 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-10-20 06:05:47,036 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 06:05:47,274 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-10-20 06:05:47,274 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [691229977] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-20 06:05:47,274 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-20 06:05:47,275 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10, 10, 10, 10] total 20 [2021-10-20 06:05:47,275 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253579868] [2021-10-20 06:05:47,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-10-20 06:05:47,276 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 06:05:47,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-10-20 06:05:47,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=282, Unknown=0, NotChecked=0, Total=380 [2021-10-20 06:05:47,277 INFO L87 Difference]: Start difference. First operand 106 states and 111 transitions. Second operand has 20 states, 20 states have (on average 2.15) internal successors, (43), 20 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) [2021-10-20 06:05:48,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 06:05:48,110 INFO L93 Difference]: Finished difference Result 113 states and 118 transitions. [2021-10-20 06:05:48,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-20 06:05:48,111 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.15) internal successors, (43), 20 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 34 [2021-10-20 06:05:48,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 06:05:48,112 INFO L225 Difference]: With dead ends: 113 [2021-10-20 06:05:48,112 INFO L226 Difference]: Without dead ends: 113 [2021-10-20 06:05:48,113 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 628.2ms TimeCoverageRelationStatistics Valid=119, Invalid=343, Unknown=0, NotChecked=0, Total=462 [2021-10-20 06:05:48,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2021-10-20 06:05:48,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 110. [2021-10-20 06:05:48,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 72 states have (on average 1.5972222222222223) internal successors, (115), 109 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:05:48,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 115 transitions. [2021-10-20 06:05:48,118 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 115 transitions. Word has length 34 [2021-10-20 06:05:48,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 06:05:48,119 INFO L470 AbstractCegarLoop]: Abstraction has 110 states and 115 transitions. [2021-10-20 06:05:48,119 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.15) internal successors, (43), 20 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) [2021-10-20 06:05:48,119 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 115 transitions. [2021-10-20 06:05:48,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-10-20 06:05:48,120 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 06:05:48,120 INFO L512 BasicCegarLoop]: trace histogram [8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 06:05:48,158 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-10-20 06:05:48,349 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-10-20 06:05:48,543 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2021-10-20 06:05:48,741 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/cvc4 --incremental --print-success --lang smt [2021-10-20 06:05:48,742 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 45 more)] === [2021-10-20 06:05:48,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 06:05:48,742 INFO L82 PathProgramCache]: Analyzing trace with hash 1812105503, now seen corresponding path program 2 times [2021-10-20 06:05:48,743 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 06:05:48,743 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1604832742] [2021-10-20 06:05:48,743 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-20 06:05:48,743 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 06:05:48,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 06:05:48,744 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 06:05:48,745 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-10-20 06:05:49,056 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-20 06:05:49,056 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-20 06:05:49,065 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-20 06:05:49,066 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 06:05:49,078 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 [2021-10-20 06:05:49,224 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-10-20 06:05:49,224 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 28 [2021-10-20 06:05:49,799 INFO L354 Elim1Store]: treesize reduction 30, result has 36.2 percent of original size [2021-10-20 06:05:49,799 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 36 treesize of output 47 [2021-10-20 06:05:49,997 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2021-10-20 06:05:49,998 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 06:06:00,626 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2021-10-20 06:06:00,626 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 06:06:00,626 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1604832742] [2021-10-20 06:06:00,627 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1604832742] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 06:06:00,627 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 06:06:00,627 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-10-20 06:06:00,627 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983878697] [2021-10-20 06:06:00,628 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-20 06:06:00,628 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 06:06:00,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-20 06:06:00,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=64, Unknown=5, NotChecked=0, Total=90 [2021-10-20 06:06:00,630 INFO L87 Difference]: Start difference. First operand 110 states and 115 transitions. Second operand has 10 states, 9 states have (on average 5.111111111111111) internal successors, (46), 10 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:06:01,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 06:06:01,638 INFO L93 Difference]: Finished difference Result 150 states and 156 transitions. [2021-10-20 06:06:01,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-20 06:06:01,639 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.111111111111111) internal successors, (46), 10 states have internal predecessors, (46), 0 states have call successors, (0), 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 38 [2021-10-20 06:06:01,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 06:06:01,642 INFO L225 Difference]: With dead ends: 150 [2021-10-20 06:06:01,647 INFO L226 Difference]: Without dead ends: 150 [2021-10-20 06:06:01,648 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 64 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 10541.9ms TimeCoverageRelationStatistics Valid=76, Invalid=159, Unknown=5, NotChecked=0, Total=240 [2021-10-20 06:06:01,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2021-10-20 06:06:01,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 107. [2021-10-20 06:06:01,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 72 states have (on average 1.5555555555555556) internal successors, (112), 106 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:06:01,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 112 transitions. [2021-10-20 06:06:01,663 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 112 transitions. Word has length 38 [2021-10-20 06:06:01,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 06:06:01,663 INFO L470 AbstractCegarLoop]: Abstraction has 107 states and 112 transitions. [2021-10-20 06:06:01,663 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.111111111111111) internal successors, (46), 10 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:06:01,663 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 112 transitions. [2021-10-20 06:06:01,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-10-20 06:06:01,665 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 06:06:01,665 INFO L512 BasicCegarLoop]: trace histogram [8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 06:06:01,683 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-10-20 06:06:01,877 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 06:06:01,877 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 45 more)] === [2021-10-20 06:06:01,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 06:06:01,878 INFO L82 PathProgramCache]: Analyzing trace with hash 1812105504, now seen corresponding path program 1 times [2021-10-20 06:06:01,878 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 06:06:01,878 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [324336428] [2021-10-20 06:06:01,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:06:01,879 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 06:06:01,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 06:06:01,880 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 06:06:01,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-10-20 06:06:02,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 06:06:02,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 20 conjunts are in the unsatisfiable core [2021-10-20 06:06:02,394 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 06:06:02,427 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 [2021-10-20 06:06:02,438 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 [2021-10-20 06:06:02,845 INFO L354 Elim1Store]: treesize reduction 17, result has 22.7 percent of original size [2021-10-20 06:06:02,845 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 29 treesize of output 31 [2021-10-20 06:06:02,919 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-20 06:06:02,919 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 28 treesize of output 28 [2021-10-20 06:06:03,463 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-10-20 06:06:03,464 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 12 treesize of output 18 [2021-10-20 06:06:03,682 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2021-10-20 06:06:03,682 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 06:06:07,889 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2021-10-20 06:06:07,889 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 06:06:07,889 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [324336428] [2021-10-20 06:06:07,889 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [324336428] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 06:06:07,889 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 06:06:07,889 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2021-10-20 06:06:07,890 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311800193] [2021-10-20 06:06:07,890 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-20 06:06:07,890 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 06:06:07,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-20 06:06:07,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-10-20 06:06:07,891 INFO L87 Difference]: Start difference. First operand 107 states and 112 transitions. Second operand has 12 states, 11 states have (on average 4.181818181818182) internal successors, (46), 12 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:06:12,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 06:06:12,981 INFO L93 Difference]: Finished difference Result 148 states and 154 transitions. [2021-10-20 06:06:12,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-20 06:06:12,985 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.181818181818182) internal successors, (46), 12 states have internal predecessors, (46), 0 states have call successors, (0), 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 38 [2021-10-20 06:06:12,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 06:06:12,986 INFO L225 Difference]: With dead ends: 148 [2021-10-20 06:06:12,986 INFO L226 Difference]: Without dead ends: 148 [2021-10-20 06:06:12,986 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 2807.0ms TimeCoverageRelationStatistics Valid=117, Invalid=263, Unknown=0, NotChecked=0, Total=380 [2021-10-20 06:06:12,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2021-10-20 06:06:12,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 104. [2021-10-20 06:06:12,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 72 states have (on average 1.5138888888888888) internal successors, (109), 103 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:06:12,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 109 transitions. [2021-10-20 06:06:12,991 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 109 transitions. Word has length 38 [2021-10-20 06:06:12,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 06:06:12,998 INFO L470 AbstractCegarLoop]: Abstraction has 104 states and 109 transitions. [2021-10-20 06:06:12,998 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.181818181818182) internal successors, (46), 12 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:06:12,998 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 109 transitions. [2021-10-20 06:06:13,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-10-20 06:06:13,004 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 06:06:13,004 INFO L512 BasicCegarLoop]: trace histogram [8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 06:06:13,016 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-10-20 06:06:13,204 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 06:06:13,205 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 45 more)] === [2021-10-20 06:06:13,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 06:06:13,205 INFO L82 PathProgramCache]: Analyzing trace with hash -1003649363, now seen corresponding path program 1 times [2021-10-20 06:06:13,206 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 06:06:13,206 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [58498744] [2021-10-20 06:06:13,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:06:13,206 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 06:06:13,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 06:06:13,207 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 06:06:13,220 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-10-20 06:06:13,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 06:06:13,755 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-20 06:06:13,757 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 06:06:13,841 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-10-20 06:06:13,842 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 37 [2021-10-20 06:06:14,016 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-10-20 06:06:14,017 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 [2021-10-20 06:06:14,395 INFO L354 Elim1Store]: treesize reduction 30, result has 36.2 percent of original size [2021-10-20 06:06:14,396 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 33 treesize of output 44 [2021-10-20 06:06:15,063 INFO L354 Elim1Store]: treesize reduction 57, result has 30.5 percent of original size [2021-10-20 06:06:15,064 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 53 treesize of output 70 [2021-10-20 06:06:15,602 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2021-10-20 06:06:15,603 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 06:06:16,875 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2021-10-20 06:06:16,875 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 06:06:16,876 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [58498744] [2021-10-20 06:06:16,876 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [58498744] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 06:06:16,876 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 06:06:16,876 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 10] imperfect sequences [] total 18 [2021-10-20 06:06:16,876 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932945358] [2021-10-20 06:06:16,877 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-10-20 06:06:16,877 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 06:06:16,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-10-20 06:06:16,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=246, Unknown=0, NotChecked=0, Total=380 [2021-10-20 06:06:16,878 INFO L87 Difference]: Start difference. First operand 104 states and 109 transitions. Second operand has 20 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 19 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:06:18,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 06:06:18,354 INFO L93 Difference]: Finished difference Result 153 states and 159 transitions. [2021-10-20 06:06:18,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-20 06:06:18,355 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 19 states have internal predecessors, (56), 0 states have call successors, (0), 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 43 [2021-10-20 06:06:18,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 06:06:18,356 INFO L225 Difference]: With dead ends: 153 [2021-10-20 06:06:18,356 INFO L226 Difference]: Without dead ends: 153 [2021-10-20 06:06:18,357 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 64 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 1301.7ms TimeCoverageRelationStatistics Valid=290, Invalid=466, Unknown=0, NotChecked=0, Total=756 [2021-10-20 06:06:18,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2021-10-20 06:06:18,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 99. [2021-10-20 06:06:18,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 72 states have (on average 1.4444444444444444) internal successors, (104), 98 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:06:18,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 104 transitions. [2021-10-20 06:06:18,361 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 104 transitions. Word has length 43 [2021-10-20 06:06:18,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 06:06:18,362 INFO L470 AbstractCegarLoop]: Abstraction has 99 states and 104 transitions. [2021-10-20 06:06:18,362 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 19 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:06:18,362 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 104 transitions. [2021-10-20 06:06:18,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-10-20 06:06:18,363 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 06:06:18,363 INFO L512 BasicCegarLoop]: trace histogram [8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 06:06:18,382 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-10-20 06:06:18,577 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 06:06:18,577 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 45 more)] === [2021-10-20 06:06:18,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 06:06:18,577 INFO L82 PathProgramCache]: Analyzing trace with hash -1003649362, now seen corresponding path program 1 times [2021-10-20 06:06:18,578 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 06:06:18,578 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [955189014] [2021-10-20 06:06:18,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:06:18,578 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 06:06:18,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 06:06:18,579 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 06:06:18,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-10-20 06:06:19,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 06:06:19,213 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-20 06:06:19,215 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 06:06:19,284 INFO L354 Elim1Store]: treesize reduction 33, result has 40.0 percent of original size [2021-10-20 06:06:19,285 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 42 [2021-10-20 06:06:19,375 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-10-20 06:06:19,376 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 63 [2021-10-20 06:06:19,816 INFO L354 Elim1Store]: treesize reduction 36, result has 29.4 percent of original size [2021-10-20 06:06:19,817 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 46 treesize of output 53 [2021-10-20 06:06:20,028 INFO L354 Elim1Store]: treesize reduction -2, result has 108.0 percent of original size [2021-10-20 06:06:20,029 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 50 treesize of output 70 [2021-10-20 06:06:22,205 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-10-20 06:06:22,206 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 12 treesize of output 18 [2021-10-20 06:06:22,753 INFO L354 Elim1Store]: treesize reduction 20, result has 57.4 percent of original size [2021-10-20 06:06:22,753 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 21 treesize of output 42 [2021-10-20 06:06:23,396 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2021-10-20 06:06:23,397 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 06:06:25,399 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2021-10-20 06:06:25,400 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 06:06:25,400 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [955189014] [2021-10-20 06:06:25,400 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [955189014] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 06:06:25,400 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 06:06:25,400 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 4] imperfect sequences [] total 10 [2021-10-20 06:06:25,401 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419933240] [2021-10-20 06:06:25,401 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-20 06:06:25,401 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 06:06:25,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-20 06:06:25,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2021-10-20 06:06:25,402 INFO L87 Difference]: Start difference. First operand 99 states and 104 transitions. Second operand has 12 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 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) [2021-10-20 06:06:29,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 06:06:29,194 INFO L93 Difference]: Finished difference Result 226 states and 235 transitions. [2021-10-20 06:06:29,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-20 06:06:29,196 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2021-10-20 06:06:29,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 06:06:29,198 INFO L225 Difference]: With dead ends: 226 [2021-10-20 06:06:29,198 INFO L226 Difference]: Without dead ends: 226 [2021-10-20 06:06:29,199 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 1962.8ms TimeCoverageRelationStatistics Valid=107, Invalid=199, Unknown=0, NotChecked=0, Total=306 [2021-10-20 06:06:29,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2021-10-20 06:06:29,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 101. [2021-10-20 06:06:29,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 76 states have (on average 1.4210526315789473) internal successors, (108), 100 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:06:29,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 108 transitions. [2021-10-20 06:06:29,204 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 108 transitions. Word has length 43 [2021-10-20 06:06:29,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 06:06:29,205 INFO L470 AbstractCegarLoop]: Abstraction has 101 states and 108 transitions. [2021-10-20 06:06:29,205 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 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) [2021-10-20 06:06:29,205 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 108 transitions. [2021-10-20 06:06:29,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-10-20 06:06:29,206 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 06:06:29,206 INFO L512 BasicCegarLoop]: trace histogram [8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 06:06:29,227 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-10-20 06:06:29,423 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 06:06:29,424 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr22REQUIRES_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 45 more)] === [2021-10-20 06:06:29,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 06:06:29,424 INFO L82 PathProgramCache]: Analyzing trace with hash -709520902, now seen corresponding path program 1 times [2021-10-20 06:06:29,425 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 06:06:29,425 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1102646419] [2021-10-20 06:06:29,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:06:29,425 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 06:06:29,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 06:06:29,427 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 06:06:29,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-10-20 06:06:30,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 06:06:30,056 INFO L263 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-20 06:06:30,057 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 06:06:30,704 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 [2021-10-20 06:06:30,736 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 [2021-10-20 06:06:30,760 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2021-10-20 06:06:30,760 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 06:06:30,819 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 [2021-10-20 06:06:31,156 INFO L354 Elim1Store]: treesize reduction -1, result has 104.0 percent of original size [2021-10-20 06:06:31,157 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 38 treesize of output 57 [2021-10-20 06:06:31,757 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2021-10-20 06:06:31,757 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 06:06:31,757 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1102646419] [2021-10-20 06:06:31,757 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1102646419] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 06:06:31,757 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 06:06:31,757 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 7 [2021-10-20 06:06:31,758 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195942831] [2021-10-20 06:06:31,759 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-20 06:06:31,759 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 06:06:31,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-20 06:06:31,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-20 06:06:31,760 INFO L87 Difference]: Start difference. First operand 101 states and 108 transitions. Second operand has 8 states, 7 states have (on average 5.857142857142857) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:06:32,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 06:06:32,597 INFO L93 Difference]: Finished difference Result 144 states and 150 transitions. [2021-10-20 06:06:32,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-20 06:06:32,597 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.857142857142857) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 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 49 [2021-10-20 06:06:32,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 06:06:32,598 INFO L225 Difference]: With dead ends: 144 [2021-10-20 06:06:32,598 INFO L226 Difference]: Without dead ends: 144 [2021-10-20 06:06:32,599 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 88 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 328.6ms TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2021-10-20 06:06:32,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2021-10-20 06:06:32,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 101. [2021-10-20 06:06:32,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 76 states have (on average 1.4078947368421053) internal successors, (107), 100 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:06:32,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 107 transitions. [2021-10-20 06:06:32,601 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 107 transitions. Word has length 49 [2021-10-20 06:06:32,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 06:06:32,602 INFO L470 AbstractCegarLoop]: Abstraction has 101 states and 107 transitions. [2021-10-20 06:06:32,602 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.857142857142857) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:06:32,602 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 107 transitions. [2021-10-20 06:06:32,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-10-20 06:06:32,603 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 06:06:32,603 INFO L512 BasicCegarLoop]: trace histogram [8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 06:06:32,631 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (19)] Ended with exit code 0 [2021-10-20 06:06:32,819 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 06:06:32,820 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr23REQUIRES_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 45 more)] === [2021-10-20 06:06:32,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 06:06:32,820 INFO L82 PathProgramCache]: Analyzing trace with hash -709520901, now seen corresponding path program 1 times [2021-10-20 06:06:32,820 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 06:06:32,820 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1963016868] [2021-10-20 06:06:32,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:06:32,821 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 06:06:32,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 06:06:32,822 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 06:06:32,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-10-20 06:06:33,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 06:06:33,519 INFO L263 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-20 06:06:33,521 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 06:06:34,792 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 [2021-10-20 06:06:34,803 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 [2021-10-20 06:06:34,870 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 [2021-10-20 06:06:34,875 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 [2021-10-20 06:06:34,924 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2021-10-20 06:06:34,924 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 06:06:35,159 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 [2021-10-20 06:06:35,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:06:35,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:06:35,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:06:35,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:06:35,504 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:06:35,505 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 28 treesize of output 32 [2021-10-20 06:06:37,608 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2021-10-20 06:06:37,609 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 06:06:37,609 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1963016868] [2021-10-20 06:06:37,609 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1963016868] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 06:06:37,609 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 06:06:37,609 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 15 [2021-10-20 06:06:37,610 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935331361] [2021-10-20 06:06:37,610 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-10-20 06:06:37,610 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 06:06:37,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-10-20 06:06:37,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2021-10-20 06:06:37,611 INFO L87 Difference]: Start difference. First operand 101 states and 107 transitions. Second operand has 16 states, 15 states have (on average 4.533333333333333) internal successors, (68), 16 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:06:39,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 06:06:39,248 INFO L93 Difference]: Finished difference Result 163 states and 170 transitions. [2021-10-20 06:06:39,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-20 06:06:39,250 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.533333333333333) internal successors, (68), 16 states have internal predecessors, (68), 0 states have call successors, (0), 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 49 [2021-10-20 06:06:39,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 06:06:39,251 INFO L225 Difference]: With dead ends: 163 [2021-10-20 06:06:39,251 INFO L226 Difference]: Without dead ends: 163 [2021-10-20 06:06:39,251 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 1536.4ms TimeCoverageRelationStatistics Valid=175, Invalid=475, Unknown=0, NotChecked=0, Total=650 [2021-10-20 06:06:39,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2021-10-20 06:06:39,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 101. [2021-10-20 06:06:39,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 76 states have (on average 1.394736842105263) internal successors, (106), 100 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:06:39,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 106 transitions. [2021-10-20 06:06:39,255 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 106 transitions. Word has length 49 [2021-10-20 06:06:39,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 06:06:39,256 INFO L470 AbstractCegarLoop]: Abstraction has 101 states and 106 transitions. [2021-10-20 06:06:39,256 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.533333333333333) internal successors, (68), 16 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:06:39,256 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 106 transitions. [2021-10-20 06:06:39,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-10-20 06:06:39,257 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 06:06:39,257 INFO L512 BasicCegarLoop]: trace histogram [8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 06:06:39,269 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (20)] Ended with exit code 0 [2021-10-20 06:06:39,462 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 06:06:39,463 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr26REQUIRES_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 45 more)] === [2021-10-20 06:06:39,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 06:06:39,463 INFO L82 PathProgramCache]: Analyzing trace with hash -1803046405, now seen corresponding path program 1 times [2021-10-20 06:06:39,463 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 06:06:39,464 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1177503262] [2021-10-20 06:06:39,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:06:39,464 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 06:06:39,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 06:06:39,465 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 06:06:39,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-10-20 06:06:40,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 06:06:40,302 INFO L263 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-20 06:06:40,303 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 06:06:40,982 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 [2021-10-20 06:06:41,034 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 [2021-10-20 06:06:41,058 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2021-10-20 06:06:41,058 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 06:06:41,126 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 [2021-10-20 06:06:41,419 INFO L354 Elim1Store]: treesize reduction -1, result has 104.0 percent of original size [2021-10-20 06:06:41,419 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 38 treesize of output 57 [2021-10-20 06:06:41,998 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2021-10-20 06:06:41,998 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 06:06:41,999 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1177503262] [2021-10-20 06:06:41,999 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1177503262] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 06:06:41,999 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 06:06:41,999 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 7 [2021-10-20 06:06:41,999 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059432198] [2021-10-20 06:06:41,999 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-20 06:06:42,000 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 06:06:42,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-20 06:06:42,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-20 06:06:42,000 INFO L87 Difference]: Start difference. First operand 101 states and 106 transitions. Second operand has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 8 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:06:42,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 06:06:42,881 INFO L93 Difference]: Finished difference Result 155 states and 161 transitions. [2021-10-20 06:06:42,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-20 06:06:42,882 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 8 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2021-10-20 06:06:42,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 06:06:42,883 INFO L225 Difference]: With dead ends: 155 [2021-10-20 06:06:42,883 INFO L226 Difference]: Without dead ends: 155 [2021-10-20 06:06:42,884 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 94 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 290.8ms TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2021-10-20 06:06:42,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2021-10-20 06:06:42,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 102. [2021-10-20 06:06:42,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 77 states have (on average 1.4025974025974026) internal successors, (108), 101 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:06:42,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 108 transitions. [2021-10-20 06:06:42,889 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 108 transitions. Word has length 52 [2021-10-20 06:06:42,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 06:06:42,889 INFO L470 AbstractCegarLoop]: Abstraction has 102 states and 108 transitions. [2021-10-20 06:06:42,889 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 8 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:06:42,890 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 108 transitions. [2021-10-20 06:06:42,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-10-20 06:06:42,890 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 06:06:42,891 INFO L512 BasicCegarLoop]: trace histogram [8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 06:06:42,922 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2021-10-20 06:06:43,106 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 06:06:43,107 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr27REQUIRES_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 45 more)] === [2021-10-20 06:06:43,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 06:06:43,107 INFO L82 PathProgramCache]: Analyzing trace with hash -1803046404, now seen corresponding path program 1 times [2021-10-20 06:06:43,108 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 06:06:43,108 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1706038207] [2021-10-20 06:06:43,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:06:43,108 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 06:06:43,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 06:06:43,110 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 06:06:43,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-10-20 06:06:44,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 06:06:44,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-20 06:06:44,176 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 06:06:45,327 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 [2021-10-20 06:06:45,343 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 [2021-10-20 06:06:45,452 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 [2021-10-20 06:06:45,455 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 [2021-10-20 06:06:45,490 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2021-10-20 06:06:45,491 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 06:06:45,731 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 60 treesize of output 56 [2021-10-20 06:06:45,735 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 90 treesize of output 82 [2021-10-20 06:06:45,993 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 32 [2021-10-20 06:06:46,277 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:06:46,278 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 30 treesize of output 34 [2021-10-20 06:06:47,997 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2021-10-20 06:06:47,997 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 06:06:47,997 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1706038207] [2021-10-20 06:06:47,997 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1706038207] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 06:06:47,998 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 06:06:47,998 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 15 [2021-10-20 06:06:47,998 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366720174] [2021-10-20 06:06:47,998 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-10-20 06:06:47,998 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 06:06:47,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-10-20 06:06:47,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2021-10-20 06:06:47,999 INFO L87 Difference]: Start difference. First operand 102 states and 108 transitions. Second operand has 16 states, 15 states have (on average 4.933333333333334) internal successors, (74), 16 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) [2021-10-20 06:06:49,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 06:06:49,856 INFO L93 Difference]: Finished difference Result 161 states and 168 transitions. [2021-10-20 06:06:49,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-20 06:06:49,858 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.933333333333334) internal successors, (74), 16 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2021-10-20 06:06:49,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 06:06:49,859 INFO L225 Difference]: With dead ends: 161 [2021-10-20 06:06:49,859 INFO L226 Difference]: Without dead ends: 161 [2021-10-20 06:06:49,860 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 1357.1ms TimeCoverageRelationStatistics Valid=177, Invalid=473, Unknown=0, NotChecked=0, Total=650 [2021-10-20 06:06:49,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2021-10-20 06:06:49,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 102. [2021-10-20 06:06:49,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 77 states have (on average 1.3896103896103895) internal successors, (107), 101 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:06:49,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 107 transitions. [2021-10-20 06:06:49,865 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 107 transitions. Word has length 52 [2021-10-20 06:06:49,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 06:06:49,865 INFO L470 AbstractCegarLoop]: Abstraction has 102 states and 107 transitions. [2021-10-20 06:06:49,866 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.933333333333334) internal successors, (74), 16 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) [2021-10-20 06:06:49,866 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 107 transitions. [2021-10-20 06:06:49,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-20 06:06:49,867 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 06:06:49,867 INFO L512 BasicCegarLoop]: trace histogram [8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 06:06:49,889 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2021-10-20 06:06:50,082 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 06:06:50,083 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 45 more)] === [2021-10-20 06:06:50,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 06:06:50,083 INFO L82 PathProgramCache]: Analyzing trace with hash -1855772065, now seen corresponding path program 1 times [2021-10-20 06:06:50,084 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 06:06:50,084 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [927728062] [2021-10-20 06:06:50,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:06:50,084 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 06:06:50,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 06:06:50,085 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 06:06:50,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-10-20 06:06:51,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 06:06:51,576 INFO L263 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 28 conjunts are in the unsatisfiable core [2021-10-20 06:06:51,577 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 06:06:51,664 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-10-20 06:06:51,664 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 37 [2021-10-20 06:06:51,866 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-20 06:06:51,866 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 14 treesize of output 14 [2021-10-20 06:06:53,412 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 [2021-10-20 06:06:53,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:06:53,558 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-20 06:06:53,626 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 30 treesize of output 29 [2021-10-20 06:06:53,642 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 [2021-10-20 06:06:53,792 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 50 treesize of output 42 [2021-10-20 06:06:53,865 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:06:53,866 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 25 [2021-10-20 06:06:53,938 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2021-10-20 06:06:53,938 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 06:06:54,127 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 112 treesize of output 108 [2021-10-20 06:07:07,502 INFO L354 Elim1Store]: treesize reduction 196, result has 54.3 percent of original size [2021-10-20 06:07:07,503 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 10 new quantified variables, introduced 36 case distinctions, treesize of input 11611 treesize of output 11399 [2021-10-20 06:07:08,463 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 06:07:08,463 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [927728062] [2021-10-20 06:07:08,464 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-10-20 06:07:08,464 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1172659365] [2021-10-20 06:07:08,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:07:08,464 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-20 06:07:08,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/cvc4 [2021-10-20 06:07:08,472 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-20 06:07:08,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/cvc4 --incremental --print-success --lang smt (24)] Waiting until timeout for monitored process [2021-10-20 06:07:10,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 06:07:10,156 INFO L263 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 35 conjunts are in the unsatisfiable core [2021-10-20 06:07:10,158 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 06:07:11,371 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-10-20 06:07:11,371 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 17 treesize of output 22 [2021-10-20 06:07:13,087 INFO L354 Elim1Store]: treesize reduction 30, result has 36.2 percent of original size [2021-10-20 06:07:13,087 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 34 treesize of output 45 [2021-10-20 06:07:14,126 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 24 treesize of output 20 [2021-10-20 06:07:14,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:07:14,498 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 29 treesize of output 28 [2021-10-20 06:07:14,588 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 [2021-10-20 06:07:14,596 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 50 treesize of output 49 [2021-10-20 06:07:14,947 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 73 treesize of output 65 [2021-10-20 06:07:15,168 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:07:15,169 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 43 [2021-10-20 06:07:16,039 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2021-10-20 06:07:16,039 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 06:07:16,172 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 114 treesize of output 110 [2021-10-20 06:07:23,897 INFO L354 Elim1Store]: treesize reduction 196, result has 54.3 percent of original size [2021-10-20 06:07:23,898 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 10 new quantified variables, introduced 36 case distinctions, treesize of input 18486 treesize of output 17746 [2021-10-20 06:07:24,430 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-10-20 06:07:24,431 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [282072511] [2021-10-20 06:07:24,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:07:24,431 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-20 06:07:24,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 [2021-10-20 06:07:24,449 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-20 06:07:24,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2021-10-20 06:07:25,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 06:07:25,653 INFO L263 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 28 conjunts are in the unsatisfiable core [2021-10-20 06:07:25,654 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 06:07:25,743 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-10-20 06:07:25,743 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 37 [2021-10-20 06:07:25,948 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-20 06:07:25,948 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 13 treesize of output 13 [2021-10-20 06:07:27,400 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 [2021-10-20 06:07:27,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 06:07:27,518 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-20 06:07:27,576 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 31 treesize of output 30 [2021-10-20 06:07:27,589 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 [2021-10-20 06:07:27,697 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 50 treesize of output 42 [2021-10-20 06:07:27,726 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 06:07:27,726 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 25 [2021-10-20 06:07:27,736 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2021-10-20 06:07:27,737 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 06:07:27,868 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 112 treesize of output 108 [2021-10-20 06:07:30,304 INFO L354 Elim1Store]: treesize reduction 196, result has 54.3 percent of original size [2021-10-20 06:07:30,305 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 10 new quantified variables, introduced 36 case distinctions, treesize of input 12084 treesize of output 11872 [2021-10-20 06:07:30,676 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-10-20 06:07:30,677 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-10-20 06:07:30,677 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-10-20 06:07:30,677 ERROR L172 FreeRefinementEngine]: Strategy WALRUS failed to provide any proof altough trace is infeasible [2021-10-20 06:07:30,677 INFO L626 BasicCegarLoop]: Counterexample might be feasible [2021-10-20 06:07:30,685 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28REQUIRES_VIOLATION [2021-10-20 06:07:30,687 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE [2021-10-20 06:07:30,688 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE [2021-10-20 06:07:30,688 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE [2021-10-20 06:07:30,688 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE [2021-10-20 06:07:30,688 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATION [2021-10-20 06:07:30,688 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATION [2021-10-20 06:07:30,689 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATION [2021-10-20 06:07:30,689 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATION [2021-10-20 06:07:30,689 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATION [2021-10-20 06:07:30,689 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATION [2021-10-20 06:07:30,690 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATION [2021-10-20 06:07:30,690 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATION [2021-10-20 06:07:30,690 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATION [2021-10-20 06:07:30,690 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATION [2021-10-20 06:07:30,690 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATION [2021-10-20 06:07:30,691 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATION [2021-10-20 06:07:30,691 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16REQUIRES_VIOLATION [2021-10-20 06:07:30,691 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17REQUIRES_VIOLATION [2021-10-20 06:07:30,691 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18REQUIRES_VIOLATION [2021-10-20 06:07:30,691 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19REQUIRES_VIOLATION [2021-10-20 06:07:30,692 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20REQUIRES_VIOLATION [2021-10-20 06:07:30,692 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21REQUIRES_VIOLATION [2021-10-20 06:07:30,692 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22REQUIRES_VIOLATION [2021-10-20 06:07:30,692 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23REQUIRES_VIOLATION [2021-10-20 06:07:30,692 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24REQUIRES_VIOLATION [2021-10-20 06:07:30,693 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25REQUIRES_VIOLATION [2021-10-20 06:07:30,693 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26REQUIRES_VIOLATION [2021-10-20 06:07:30,693 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27REQUIRES_VIOLATION [2021-10-20 06:07:30,693 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29REQUIRES_VIOLATION [2021-10-20 06:07:30,693 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30REQUIRES_VIOLATION [2021-10-20 06:07:30,694 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31REQUIRES_VIOLATION [2021-10-20 06:07:30,694 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE [2021-10-20 06:07:30,694 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_FREE [2021-10-20 06:07:30,694 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_FREE [2021-10-20 06:07:30,695 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_FREE [2021-10-20 06:07:30,695 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE [2021-10-20 06:07:30,695 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE [2021-10-20 06:07:30,695 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr38REQUIRES_VIOLATION [2021-10-20 06:07:30,696 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr39REQUIRES_VIOLATION [2021-10-20 06:07:30,696 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE [2021-10-20 06:07:30,696 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE [2021-10-20 06:07:30,696 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_FREE [2021-10-20 06:07:30,696 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr43REQUIRES_VIOLATION [2021-10-20 06:07:30,697 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr44REQUIRES_VIOLATION [2021-10-20 06:07:30,697 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr45REQUIRES_VIOLATION [2021-10-20 06:07:30,697 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr46REQUIRES_VIOLATION [2021-10-20 06:07:30,697 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_LEAK [2021-10-20 06:07:30,722 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/cvc4 --incremental --print-success --lang smt (24)] Ended with exit code 0 [2021-10-20 06:07:30,952 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2021-10-20 06:07:31,135 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2021-10-20 06:07:31,323 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/cvc4 --incremental --print-success --lang smt,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 06:07:31,330 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-20 06:07:31,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 06:07:31 BoogieIcfgContainer [2021-10-20 06:07:31,348 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-20 06:07:31,348 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-20 06:07:31,349 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-20 06:07:31,349 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-20 06:07:31,349 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:05:05" (3/4) ... [2021-10-20 06:07:31,353 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-20 06:07:31,353 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-20 06:07:31,354 INFO L168 Benchmark]: Toolchain (without parser) took 147488.67 ms. Allocated memory was 50.3 MB in the beginning and 184.5 MB in the end (delta: 134.2 MB). Free memory was 25.8 MB in the beginning and 133.3 MB in the end (delta: -107.4 MB). Peak memory consumption was 25.5 MB. Max. memory is 16.1 GB. [2021-10-20 06:07:31,368 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 50.3 MB. Free memory was 31.3 MB in the beginning and 31.3 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-20 06:07:31,369 INFO L168 Benchmark]: CACSL2BoogieTranslator took 685.43 ms. Allocated memory was 50.3 MB in the beginning and 73.4 MB in the end (delta: 23.1 MB). Free memory was 25.7 MB in the beginning and 46.4 MB in the end (delta: -20.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 16.1 GB. [2021-10-20 06:07:31,369 INFO L168 Benchmark]: Boogie Procedure Inliner took 95.83 ms. Allocated memory is still 73.4 MB. Free memory was 46.4 MB in the beginning and 44.1 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-20 06:07:31,370 INFO L168 Benchmark]: Boogie Preprocessor took 77.08 ms. Allocated memory is still 73.4 MB. Free memory was 43.8 MB in the beginning and 42.0 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-20 06:07:31,370 INFO L168 Benchmark]: RCFGBuilder took 862.66 ms. Allocated memory is still 73.4 MB. Free memory was 42.0 MB in the beginning and 38.3 MB in the end (delta: 3.6 MB). Peak memory consumption was 8.2 MB. Max. memory is 16.1 GB. [2021-10-20 06:07:31,370 INFO L168 Benchmark]: TraceAbstraction took 145754.67 ms. Allocated memory was 73.4 MB in the beginning and 184.5 MB in the end (delta: 111.1 MB). Free memory was 38.0 MB in the beginning and 134.3 MB in the end (delta: -96.4 MB). Peak memory consumption was 116.9 MB. Max. memory is 16.1 GB. [2021-10-20 06:07:31,371 INFO L168 Benchmark]: Witness Printer took 4.76 ms. Allocated memory is still 184.5 MB. Free memory was 134.3 MB in the beginning and 133.3 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-20 06:07:31,373 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 50.3 MB. Free memory was 31.3 MB in the beginning and 31.3 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 685.43 ms. Allocated memory was 50.3 MB in the beginning and 73.4 MB in the end (delta: 23.1 MB). Free memory was 25.7 MB in the beginning and 46.4 MB in the end (delta: -20.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 95.83 ms. Allocated memory is still 73.4 MB. Free memory was 46.4 MB in the beginning and 44.1 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 77.08 ms. Allocated memory is still 73.4 MB. Free memory was 43.8 MB in the beginning and 42.0 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 862.66 ms. Allocated memory is still 73.4 MB. Free memory was 42.0 MB in the beginning and 38.3 MB in the end (delta: 3.6 MB). Peak memory consumption was 8.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 145754.67 ms. Allocated memory was 73.4 MB in the beginning and 184.5 MB in the end (delta: 111.1 MB). Free memory was 38.0 MB in the beginning and 134.3 MB in the end (delta: -96.4 MB). Peak memory consumption was 116.9 MB. Max. memory is 16.1 GB. * Witness Printer took 4.76 ms. Allocated memory is still 184.5 MB. Free memory was 134.3 MB in the beginning and 133.3 MB in the end (delta: 1.0 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: 667]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L687] static struct L1 *list; [L641] void *ptr = malloc(nmemb * size); [L642] return memset(ptr, 0, nmemb * size); [L676] struct L1 *item = calloc_model(1U, sizeof *item); [L677] COND FALSE !(!item) [L641] void *ptr = malloc(nmemb * size); [L642] return memset(ptr, 0, nmemb * size); [L655] struct L2 *item = calloc_model(1U, sizeof *item); [L656] COND FALSE !(!item) [L658] item->proto = malloc(119U) [L659] EXPR item->proto [L659] COND FALSE !(!item->proto) [L661] EXPR \read(**list) [L661] item->next = *list [L662] *list = item [L681] COND FALSE !(__VERIFIER_nondet_int()) [L682] EXPR \read(**list) [L682] item->next = *list [L683] *list = item [L690] COND FALSE !(__VERIFIER_nondet_int()) [L692] EXPR \read(*list) [L692] EXPR list->next [L692] struct L1 *next = list->next; [L693] EXPR \read(*list) [L693] list->l2 [L667] list->next - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 659]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 659]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 661]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 661]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 661]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 661]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 662]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 662]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 683]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 683]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 667]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 669]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 669]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 669]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 695]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 695]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 697]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 697]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 685]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 106 locations, 48 error locations. Started 1 CEGAR loops. OverallTime: 145679.1ms, OverallIterations: 16, TraceHistogramMax: 8, EmptinessCheckTime: 36.2ms, AutomataDifference: 28426.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 13.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 976 SDtfs, 5359 SDslu, 3379 SDs, 0 SdLazy, 3098 SolverSat, 306 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 18331.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1346 GetRequests, 1118 SyntacticMatches, 10 SemanticMatches, 218 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 574 ImplicationChecksByTransitivity, 45977.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=110occurred in iteration=7, InterpolantAutomatonStates: 137, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 138.7ms AutomataMinimizationTime, 15 MinimizatonAttempts, 605 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 312.1ms SsaConstructionTime, 3042.4ms SatisfiabilityAnalysisTime, 63340.9ms InterpolantComputationTime, 655 NumberOfCodeBlocks, 627 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 1268 ConstructedInterpolants, 218 QuantifiedInterpolants, 14155 SizeOfPredicates, 197 NumberOfNonLiveVariables, 3210 ConjunctsInSsa, 245 ConjunctsInUnsatCore, 42 InterpolantComputations, 26 PerfectInterpolantSequences, 1404/1560 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 [2021-10-20 06:07:31,435 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d26171-3af4-44d5-8f98-399a73618fd8/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...