./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety/test-0521.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aea6a77-ef62-4879-93a9-693cb42b8bdd/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aea6a77-ef62-4879-93a9-693cb42b8bdd/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aea6a77-ef62-4879-93a9-693cb42b8bdd/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aea6a77-ef62-4879-93a9-693cb42b8bdd/bin/utaipan-7li7fVZpFI/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/test-0521.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aea6a77-ef62-4879-93a9-693cb42b8bdd/bin/utaipan-7li7fVZpFI/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aea6a77-ef62-4879-93a9-693cb42b8bdd/bin/utaipan-7li7fVZpFI --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 aa94cb741c9c7eaa2ca9bb871f44dd4c619faf21975944b61e221a61ad9730d7 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 02:09:31,663 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:09:31,666 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:09:31,719 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:09:31,720 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:09:31,725 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:09:31,727 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:09:31,731 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:09:31,734 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:09:31,735 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:09:31,736 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:09:31,738 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:09:31,739 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:09:31,740 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:09:31,741 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:09:31,743 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:09:31,744 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:09:31,745 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:09:31,747 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:09:31,749 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:09:31,754 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:09:31,756 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:09:31,760 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:09:31,762 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:09:31,775 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:09:31,778 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:09:31,778 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:09:31,779 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:09:31,781 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:09:31,782 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:09:31,783 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:09:31,784 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:09:31,788 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:09:31,790 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:09:31,791 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:09:31,791 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:09:31,792 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:09:31,792 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:09:31,793 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:09:31,794 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:09:31,795 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:09:31,796 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aea6a77-ef62-4879-93a9-693cb42b8bdd/bin/utaipan-7li7fVZpFI/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-11-03 02:09:31,839 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:09:31,839 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:09:31,840 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:09:31,840 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:09:31,841 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:09:31,842 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:09:31,842 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:09:31,842 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:09:31,842 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:09:31,842 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:09:31,844 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:09:31,844 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:09:31,844 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:09:31,844 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:09:31,845 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:09:31,845 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:09:31,845 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:09:31,845 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:09:31,846 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-03 02:09:31,846 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-03 02:09:31,847 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:09:31,847 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 02:09:31,847 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-03 02:09:31,847 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:09:31,847 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 02:09:31,848 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:09:31,848 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-03 02:09:31,848 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-03 02:09:31,848 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-03 02:09:31,849 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:09:31,849 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-03 02:09:31,849 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 02:09:31,849 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:09:31,850 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:09:31,850 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:09:31,850 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:09:31,850 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:09:31,851 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:09:31,851 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:09:31,851 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:09:31,851 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:09:31,851 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:09:31,852 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aea6a77-ef62-4879-93a9-693cb42b8bdd/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aea6a77-ef62-4879-93a9-693cb42b8bdd/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aa94cb741c9c7eaa2ca9bb871f44dd4c619faf21975944b61e221a61ad9730d7 [2022-11-03 02:09:32,186 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:09:32,220 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:09:32,223 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:09:32,224 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:09:32,224 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:09:32,226 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aea6a77-ef62-4879-93a9-693cb42b8bdd/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/memsafety/test-0521.i [2022-11-03 02:09:32,303 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aea6a77-ef62-4879-93a9-693cb42b8bdd/bin/utaipan-7li7fVZpFI/data/46b78ab56/8ecabd7dc7964f149576595c4f47510f/FLAG2d1f092c2 [2022-11-03 02:09:32,854 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:09:32,855 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aea6a77-ef62-4879-93a9-693cb42b8bdd/sv-benchmarks/c/memsafety/test-0521.i [2022-11-03 02:09:32,871 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aea6a77-ef62-4879-93a9-693cb42b8bdd/bin/utaipan-7li7fVZpFI/data/46b78ab56/8ecabd7dc7964f149576595c4f47510f/FLAG2d1f092c2 [2022-11-03 02:09:33,125 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aea6a77-ef62-4879-93a9-693cb42b8bdd/bin/utaipan-7li7fVZpFI/data/46b78ab56/8ecabd7dc7964f149576595c4f47510f [2022-11-03 02:09:33,128 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:09:33,129 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:09:33,136 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:09:33,137 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:09:33,140 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:09:33,141 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:09:33" (1/1) ... [2022-11-03 02:09:33,144 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@469b3bad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:09:33, skipping insertion in model container [2022-11-03 02:09:33,144 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:09:33" (1/1) ... [2022-11-03 02:09:33,151 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:09:33,212 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:09:33,542 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:09:33,555 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:09:33,651 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:09:33,679 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:09:33,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:09:33 WrapperNode [2022-11-03 02:09:33,679 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:09:33,680 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:09:33,680 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:09:33,681 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:09:33,690 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:09:33" (1/1) ... [2022-11-03 02:09:33,709 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:09:33" (1/1) ... [2022-11-03 02:09:33,758 INFO L138 Inliner]: procedures = 125, calls = 95, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 305 [2022-11-03 02:09:33,759 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:09:33,759 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:09:33,760 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:09:33,760 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:09:33,767 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:09:33" (1/1) ... [2022-11-03 02:09:33,767 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:09:33" (1/1) ... [2022-11-03 02:09:33,773 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:09:33" (1/1) ... [2022-11-03 02:09:33,773 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:09:33" (1/1) ... [2022-11-03 02:09:33,787 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:09:33" (1/1) ... [2022-11-03 02:09:33,793 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:09:33" (1/1) ... [2022-11-03 02:09:33,795 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:09:33" (1/1) ... [2022-11-03 02:09:33,797 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:09:33" (1/1) ... [2022-11-03 02:09:33,801 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:09:33,802 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:09:33,802 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:09:33,802 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:09:33,803 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:09:33" (1/1) ... [2022-11-03 02:09:33,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:09:33,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aea6a77-ef62-4879-93a9-693cb42b8bdd/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:09:33,860 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aea6a77-ef62-4879-93a9-693cb42b8bdd/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:09:33,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aea6a77-ef62-4879-93a9-693cb42b8bdd/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:09:33,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 02:09:33,915 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 02:09:33,915 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:09:33,915 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 02:09:33,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 02:09:33,915 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 02:09:33,915 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 02:09:33,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 02:09:33,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:09:33,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:09:33,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:09:34,099 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:09:34,101 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:09:34,952 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:09:35,062 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:09:35,062 INFO L300 CfgBuilder]: Removed 8 assume(true) statements. [2022-11-03 02:09:35,066 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:09:35 BoogieIcfgContainer [2022-11-03 02:09:35,067 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:09:35,069 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:09:35,069 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:09:35,073 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:09:35,073 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:09:33" (1/3) ... [2022-11-03 02:09:35,074 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@428e5e50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:09:35, skipping insertion in model container [2022-11-03 02:09:35,074 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:09:33" (2/3) ... [2022-11-03 02:09:35,075 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@428e5e50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:09:35, skipping insertion in model container [2022-11-03 02:09:35,075 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:09:35" (3/3) ... [2022-11-03 02:09:35,076 INFO L112 eAbstractionObserver]: Analyzing ICFG test-0521.i [2022-11-03 02:09:35,095 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:09:35,096 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 152 error locations. [2022-11-03 02:09:35,171 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:09:35,180 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1d74d6af, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:09:35,181 INFO L358 AbstractCegarLoop]: Starting to check reachability of 152 error locations. [2022-11-03 02:09:35,187 INFO L276 IsEmpty]: Start isEmpty. Operand has 274 states, 121 states have (on average 2.4958677685950414) internal successors, (302), 273 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:09:35,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-03 02:09:35,210 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:09:35,210 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-03 02:09:35,211 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] === [2022-11-03 02:09:35,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:09:35,219 INFO L85 PathProgramCache]: Analyzing trace with hash 16140635, now seen corresponding path program 1 times [2022-11-03 02:09:35,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:09:35,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587622827] [2022-11-03 02:09:35,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:09:35,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:09:35,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:09:35,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:09:35,412 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:09:35,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587622827] [2022-11-03 02:09:35,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587622827] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:09:35,413 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:09:35,414 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 02:09:35,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888981311] [2022-11-03 02:09:35,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:09:35,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:09:35,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:09:35,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:09:35,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:09:35,456 INFO L87 Difference]: Start difference. First operand has 274 states, 121 states have (on average 2.4958677685950414) internal successors, (302), 273 states have internal predecessors, (302), 0 states have call successors, (0), 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) [2022-11-03 02:09:36,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:09:36,008 INFO L93 Difference]: Finished difference Result 355 states and 389 transitions. [2022-11-03 02:09:36,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:09:36,010 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 [2022-11-03 02:09:36,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:09:36,031 INFO L225 Difference]: With dead ends: 355 [2022-11-03 02:09:36,031 INFO L226 Difference]: Without dead ends: 354 [2022-11-03 02:09:36,034 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:09:36,043 INFO L413 NwaCegarLoop]: 296 mSDtfsCounter, 98 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:09:36,044 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 429 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-03 02:09:36,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2022-11-03 02:09:36,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 271. [2022-11-03 02:09:36,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 121 states have (on average 2.446280991735537) internal successors, (296), 270 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:09:36,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 296 transitions. [2022-11-03 02:09:36,122 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 296 transitions. Word has length 4 [2022-11-03 02:09:36,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:09:36,122 INFO L495 AbstractCegarLoop]: Abstraction has 271 states and 296 transitions. [2022-11-03 02:09:36,123 INFO L496 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) [2022-11-03 02:09:36,123 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 296 transitions. [2022-11-03 02:09:36,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-03 02:09:36,123 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:09:36,123 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-03 02:09:36,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 02:09:36,124 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] === [2022-11-03 02:09:36,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:09:36,125 INFO L85 PathProgramCache]: Analyzing trace with hash 16140636, now seen corresponding path program 1 times [2022-11-03 02:09:36,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:09:36,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797522397] [2022-11-03 02:09:36,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:09:36,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:09:36,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:09:36,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:09:36,236 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:09:36,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797522397] [2022-11-03 02:09:36,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797522397] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:09:36,237 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:09:36,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 02:09:36,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353671854] [2022-11-03 02:09:36,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:09:36,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:09:36,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:09:36,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:09:36,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:09:36,240 INFO L87 Difference]: Start difference. First operand 271 states and 296 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:09:36,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:09:36,707 INFO L93 Difference]: Finished difference Result 473 states and 520 transitions. [2022-11-03 02:09:36,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:09:36,708 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 [2022-11-03 02:09:36,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:09:36,711 INFO L225 Difference]: With dead ends: 473 [2022-11-03 02:09:36,711 INFO L226 Difference]: Without dead ends: 473 [2022-11-03 02:09:36,711 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:09:36,713 INFO L413 NwaCegarLoop]: 366 mSDtfsCounter, 229 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-03 02:09:36,713 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 507 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-03 02:09:36,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2022-11-03 02:09:36,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 269. [2022-11-03 02:09:36,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 121 states have (on average 2.4297520661157024) internal successors, (294), 268 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:09:36,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 294 transitions. [2022-11-03 02:09:36,728 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 294 transitions. Word has length 4 [2022-11-03 02:09:36,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:09:36,729 INFO L495 AbstractCegarLoop]: Abstraction has 269 states and 294 transitions. [2022-11-03 02:09:36,729 INFO L496 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) [2022-11-03 02:09:36,729 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 294 transitions. [2022-11-03 02:09:36,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-03 02:09:36,730 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:09:36,730 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-03 02:09:36,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 02:09:36,730 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] === [2022-11-03 02:09:36,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:09:36,731 INFO L85 PathProgramCache]: Analyzing trace with hash 499844386, now seen corresponding path program 1 times [2022-11-03 02:09:36,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:09:36,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12056463] [2022-11-03 02:09:36,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:09:36,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:09:36,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:09:36,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:09:36,777 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:09:36,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12056463] [2022-11-03 02:09:36,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12056463] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:09:36,778 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:09:36,778 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 02:09:36,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700826327] [2022-11-03 02:09:36,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:09:36,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:09:36,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:09:36,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:09:36,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:09:36,780 INFO L87 Difference]: Start difference. First operand 269 states and 294 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:09:37,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:09:37,044 INFO L93 Difference]: Finished difference Result 253 states and 278 transitions. [2022-11-03 02:09:37,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:09:37,045 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-03 02:09:37,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:09:37,046 INFO L225 Difference]: With dead ends: 253 [2022-11-03 02:09:37,046 INFO L226 Difference]: Without dead ends: 253 [2022-11-03 02:09:37,047 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:09:37,048 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 71 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:09:37,049 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 293 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 02:09:37,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2022-11-03 02:09:37,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 253. [2022-11-03 02:09:37,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 121 states have (on average 2.2975206611570247) internal successors, (278), 252 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:09:37,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 278 transitions. [2022-11-03 02:09:37,057 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 278 transitions. Word has length 5 [2022-11-03 02:09:37,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:09:37,058 INFO L495 AbstractCegarLoop]: Abstraction has 253 states and 278 transitions. [2022-11-03 02:09:37,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:09:37,058 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 278 transitions. [2022-11-03 02:09:37,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-03 02:09:37,059 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:09:37,059 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-03 02:09:37,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 02:09:37,060 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] === [2022-11-03 02:09:37,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:09:37,060 INFO L85 PathProgramCache]: Analyzing trace with hash 499844387, now seen corresponding path program 1 times [2022-11-03 02:09:37,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:09:37,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203385834] [2022-11-03 02:09:37,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:09:37,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:09:37,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:09:37,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:09:37,123 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:09:37,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203385834] [2022-11-03 02:09:37,124 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203385834] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:09:37,124 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:09:37,124 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 02:09:37,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590026069] [2022-11-03 02:09:37,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:09:37,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:09:37,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:09:37,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:09:37,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:09:37,127 INFO L87 Difference]: Start difference. First operand 253 states and 278 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:09:37,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:09:37,365 INFO L93 Difference]: Finished difference Result 237 states and 262 transitions. [2022-11-03 02:09:37,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:09:37,366 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-03 02:09:37,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:09:37,367 INFO L225 Difference]: With dead ends: 237 [2022-11-03 02:09:37,367 INFO L226 Difference]: Without dead ends: 237 [2022-11-03 02:09:37,368 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:09:37,369 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 55 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:09:37,369 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 301 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 02:09:37,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2022-11-03 02:09:37,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 237. [2022-11-03 02:09:37,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 121 states have (on average 2.165289256198347) internal successors, (262), 236 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:09:37,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 262 transitions. [2022-11-03 02:09:37,378 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 262 transitions. Word has length 5 [2022-11-03 02:09:37,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:09:37,379 INFO L495 AbstractCegarLoop]: Abstraction has 237 states and 262 transitions. [2022-11-03 02:09:37,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:09:37,379 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 262 transitions. [2022-11-03 02:09:37,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-03 02:09:37,380 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:09:37,380 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-03 02:09:37,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 02:09:37,380 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] === [2022-11-03 02:09:37,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:09:37,385 INFO L85 PathProgramCache]: Analyzing trace with hash -1668216808, now seen corresponding path program 1 times [2022-11-03 02:09:37,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:09:37,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715445813] [2022-11-03 02:09:37,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:09:37,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:09:37,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:09:37,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:09:37,497 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:09:37,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715445813] [2022-11-03 02:09:37,498 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715445813] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:09:37,498 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:09:37,498 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 02:09:37,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144527024] [2022-11-03 02:09:37,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:09:37,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:09:37,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:09:37,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:09:37,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:09:37,500 INFO L87 Difference]: Start difference. First operand 237 states and 262 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:09:37,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:09:37,761 INFO L93 Difference]: Finished difference Result 288 states and 322 transitions. [2022-11-03 02:09:37,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:09:37,762 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-03 02:09:37,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:09:37,763 INFO L225 Difference]: With dead ends: 288 [2022-11-03 02:09:37,764 INFO L226 Difference]: Without dead ends: 288 [2022-11-03 02:09:37,764 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:09:37,765 INFO L413 NwaCegarLoop]: 246 mSDtfsCounter, 62 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:09:37,765 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 363 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 02:09:37,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2022-11-03 02:09:37,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 235. [2022-11-03 02:09:37,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 121 states have (on average 2.1487603305785123) internal successors, (260), 234 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:09:37,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 260 transitions. [2022-11-03 02:09:37,772 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 260 transitions. Word has length 6 [2022-11-03 02:09:37,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:09:37,773 INFO L495 AbstractCegarLoop]: Abstraction has 235 states and 260 transitions. [2022-11-03 02:09:37,773 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:09:37,773 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 260 transitions. [2022-11-03 02:09:37,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-03 02:09:37,774 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:09:37,774 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-03 02:09:37,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 02:09:37,775 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] === [2022-11-03 02:09:37,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:09:37,781 INFO L85 PathProgramCache]: Analyzing trace with hash -1668216807, now seen corresponding path program 1 times [2022-11-03 02:09:37,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:09:37,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973685227] [2022-11-03 02:09:37,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:09:37,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:09:37,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:09:37,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:09:37,924 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:09:37,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973685227] [2022-11-03 02:09:37,925 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973685227] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:09:37,925 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:09:37,925 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 02:09:37,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736906848] [2022-11-03 02:09:37,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:09:37,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:09:37,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:09:37,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:09:37,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:09:37,927 INFO L87 Difference]: Start difference. First operand 235 states and 260 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:09:38,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:09:38,280 INFO L93 Difference]: Finished difference Result 407 states and 454 transitions. [2022-11-03 02:09:38,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:09:38,280 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-03 02:09:38,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:09:38,282 INFO L225 Difference]: With dead ends: 407 [2022-11-03 02:09:38,282 INFO L226 Difference]: Without dead ends: 407 [2022-11-03 02:09:38,282 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:09:38,283 INFO L413 NwaCegarLoop]: 316 mSDtfsCounter, 193 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:09:38,283 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 441 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 02:09:38,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2022-11-03 02:09:38,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 233. [2022-11-03 02:09:38,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 121 states have (on average 2.1322314049586777) internal successors, (258), 232 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:09:38,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 258 transitions. [2022-11-03 02:09:38,292 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 258 transitions. Word has length 6 [2022-11-03 02:09:38,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:09:38,292 INFO L495 AbstractCegarLoop]: Abstraction has 233 states and 258 transitions. [2022-11-03 02:09:38,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:09:38,293 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 258 transitions. [2022-11-03 02:09:38,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-03 02:09:38,293 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:09:38,293 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:09:38,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 02:09:38,294 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] === [2022-11-03 02:09:38,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:09:38,295 INFO L85 PathProgramCache]: Analyzing trace with hash -685881597, now seen corresponding path program 1 times [2022-11-03 02:09:38,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:09:38,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115702313] [2022-11-03 02:09:38,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:09:38,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:09:38,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:09:38,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:09:38,358 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:09:38,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115702313] [2022-11-03 02:09:38,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115702313] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:09:38,358 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:09:38,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:09:38,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52726863] [2022-11-03 02:09:38,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:09:38,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:09:38,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:09:38,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:09:38,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:09:38,360 INFO L87 Difference]: Start difference. First operand 233 states and 258 transitions. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 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) [2022-11-03 02:09:38,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:09:38,610 INFO L93 Difference]: Finished difference Result 575 states and 638 transitions. [2022-11-03 02:09:38,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:09:38,611 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 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 7 [2022-11-03 02:09:38,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:09:38,613 INFO L225 Difference]: With dead ends: 575 [2022-11-03 02:09:38,613 INFO L226 Difference]: Without dead ends: 575 [2022-11-03 02:09:38,614 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:09:38,615 INFO L413 NwaCegarLoop]: 217 mSDtfsCounter, 507 mSDsluCounter, 487 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 507 SdHoareTripleChecker+Valid, 636 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:09:38,615 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [507 Valid, 636 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 02:09:38,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2022-11-03 02:09:38,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 238. [2022-11-03 02:09:38,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 126 states have (on average 2.0952380952380953) internal successors, (264), 237 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:09:38,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 264 transitions. [2022-11-03 02:09:38,623 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 264 transitions. Word has length 7 [2022-11-03 02:09:38,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:09:38,623 INFO L495 AbstractCegarLoop]: Abstraction has 238 states and 264 transitions. [2022-11-03 02:09:38,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 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) [2022-11-03 02:09:38,623 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 264 transitions. [2022-11-03 02:09:38,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-03 02:09:38,624 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:09:38,624 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:09:38,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-03 02:09:38,624 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] === [2022-11-03 02:09:38,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:09:38,625 INFO L85 PathProgramCache]: Analyzing trace with hash 281311273, now seen corresponding path program 1 times [2022-11-03 02:09:38,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:09:38,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269398167] [2022-11-03 02:09:38,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:09:38,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:09:38,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:09:38,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:09:38,840 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:09:38,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269398167] [2022-11-03 02:09:38,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269398167] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:09:38,840 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:09:38,840 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:09:38,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370583990] [2022-11-03 02:09:38,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:09:38,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:09:38,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:09:38,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:09:38,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:09:38,842 INFO L87 Difference]: Start difference. First operand 238 states and 264 transitions. Second operand has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:09:39,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:09:39,210 INFO L93 Difference]: Finished difference Result 571 states and 634 transitions. [2022-11-03 02:09:39,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:09:39,211 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-03 02:09:39,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:09:39,213 INFO L225 Difference]: With dead ends: 571 [2022-11-03 02:09:39,213 INFO L226 Difference]: Without dead ends: 571 [2022-11-03 02:09:39,213 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-03 02:09:39,214 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 490 mSDsluCounter, 921 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 490 SdHoareTripleChecker+Valid, 1022 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:09:39,214 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [490 Valid, 1022 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 02:09:39,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2022-11-03 02:09:39,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 241. [2022-11-03 02:09:39,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 129 states have (on average 2.0697674418604652) internal successors, (267), 240 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:09:39,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 267 transitions. [2022-11-03 02:09:39,221 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 267 transitions. Word has length 11 [2022-11-03 02:09:39,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:09:39,221 INFO L495 AbstractCegarLoop]: Abstraction has 241 states and 267 transitions. [2022-11-03 02:09:39,221 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:09:39,221 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 267 transitions. [2022-11-03 02:09:39,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-03 02:09:39,222 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:09:39,222 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:09:39,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-03 02:09:39,223 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] === [2022-11-03 02:09:39,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:09:39,223 INFO L85 PathProgramCache]: Analyzing trace with hash -589468412, now seen corresponding path program 1 times [2022-11-03 02:09:39,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:09:39,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849324283] [2022-11-03 02:09:39,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:09:39,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:09:39,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:09:39,395 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:09:39,395 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:09:39,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849324283] [2022-11-03 02:09:39,395 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849324283] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:09:39,395 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:09:39,395 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:09:39,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607184752] [2022-11-03 02:09:39,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:09:39,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:09:39,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:09:39,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:09:39,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:09:39,398 INFO L87 Difference]: Start difference. First operand 241 states and 267 transitions. Second operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:09:39,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:09:39,895 INFO L93 Difference]: Finished difference Result 279 states and 310 transitions. [2022-11-03 02:09:39,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:09:39,896 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-03 02:09:39,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:09:39,897 INFO L225 Difference]: With dead ends: 279 [2022-11-03 02:09:39,898 INFO L226 Difference]: Without dead ends: 279 [2022-11-03 02:09:39,898 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-11-03 02:09:39,899 INFO L413 NwaCegarLoop]: 212 mSDtfsCounter, 184 mSDsluCounter, 427 mSDsCounter, 0 mSdLazyCounter, 605 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 624 SdHoareTripleChecker+Invalid, 614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 605 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:09:39,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 624 Invalid, 614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 605 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-03 02:09:39,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2022-11-03 02:09:39,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 243. [2022-11-03 02:09:39,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 133 states have (on average 2.045112781954887) internal successors, (272), 242 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:09:39,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 272 transitions. [2022-11-03 02:09:39,904 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 272 transitions. Word has length 13 [2022-11-03 02:09:39,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:09:39,905 INFO L495 AbstractCegarLoop]: Abstraction has 243 states and 272 transitions. [2022-11-03 02:09:39,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:09:39,905 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 272 transitions. [2022-11-03 02:09:39,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-03 02:09:39,905 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:09:39,906 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:09:39,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-03 02:09:39,906 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] === [2022-11-03 02:09:39,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:09:39,907 INFO L85 PathProgramCache]: Analyzing trace with hash -589468411, now seen corresponding path program 1 times [2022-11-03 02:09:39,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:09:39,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497036803] [2022-11-03 02:09:39,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:09:39,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:09:39,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:09:40,072 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:09:40,073 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:09:40,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497036803] [2022-11-03 02:09:40,073 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497036803] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:09:40,073 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:09:40,073 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:09:40,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845127600] [2022-11-03 02:09:40,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:09:40,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:09:40,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:09:40,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:09:40,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:09:40,075 INFO L87 Difference]: Start difference. First operand 243 states and 272 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:09:40,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:09:40,653 INFO L93 Difference]: Finished difference Result 391 states and 440 transitions. [2022-11-03 02:09:40,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:09:40,654 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-03 02:09:40,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:09:40,656 INFO L225 Difference]: With dead ends: 391 [2022-11-03 02:09:40,656 INFO L226 Difference]: Without dead ends: 391 [2022-11-03 02:09:40,656 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-03 02:09:40,657 INFO L413 NwaCegarLoop]: 288 mSDtfsCounter, 446 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 569 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 446 SdHoareTripleChecker+Valid, 670 SdHoareTripleChecker+Invalid, 576 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 569 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:09:40,657 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [446 Valid, 670 Invalid, 576 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 569 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-03 02:09:40,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2022-11-03 02:09:40,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 242. [2022-11-03 02:09:40,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 133 states have (on average 2.037593984962406) internal successors, (271), 241 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:09:40,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 271 transitions. [2022-11-03 02:09:40,665 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 271 transitions. Word has length 13 [2022-11-03 02:09:40,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:09:40,666 INFO L495 AbstractCegarLoop]: Abstraction has 242 states and 271 transitions. [2022-11-03 02:09:40,666 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:09:40,666 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 271 transitions. [2022-11-03 02:09:40,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-03 02:09:40,666 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:09:40,667 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:09:40,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-03 02:09:40,668 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr54REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] === [2022-11-03 02:09:40,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:09:40,669 INFO L85 PathProgramCache]: Analyzing trace with hash -244042145, now seen corresponding path program 1 times [2022-11-03 02:09:40,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:09:40,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004664708] [2022-11-03 02:09:40,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:09:40,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:09:40,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:09:40,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:09:40,772 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:09:40,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004664708] [2022-11-03 02:09:40,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004664708] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:09:40,773 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:09:40,773 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:09:40,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140772153] [2022-11-03 02:09:40,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:09:40,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:09:40,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:09:40,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:09:40,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:09:40,778 INFO L87 Difference]: Start difference. First operand 242 states and 271 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:09:40,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:09:40,994 INFO L93 Difference]: Finished difference Result 356 states and 396 transitions. [2022-11-03 02:09:40,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:09:40,995 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-03 02:09:40,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:09:40,997 INFO L225 Difference]: With dead ends: 356 [2022-11-03 02:09:40,997 INFO L226 Difference]: Without dead ends: 356 [2022-11-03 02:09:40,997 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-03 02:09:40,998 INFO L413 NwaCegarLoop]: 212 mSDtfsCounter, 215 mSDsluCounter, 706 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 825 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:09:40,998 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 825 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 02:09:40,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2022-11-03 02:09:41,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 297. [2022-11-03 02:09:41,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 188 states have (on average 2.074468085106383) internal successors, (390), 296 states have internal predecessors, (390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:09:41,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 390 transitions. [2022-11-03 02:09:41,005 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 390 transitions. Word has length 13 [2022-11-03 02:09:41,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:09:41,005 INFO L495 AbstractCegarLoop]: Abstraction has 297 states and 390 transitions. [2022-11-03 02:09:41,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:09:41,005 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 390 transitions. [2022-11-03 02:09:41,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-03 02:09:41,006 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:09:41,006 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:09:41,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-03 02:09:41,006 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr38REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] === [2022-11-03 02:09:41,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:09:41,007 INFO L85 PathProgramCache]: Analyzing trace with hash 633132918, now seen corresponding path program 1 times [2022-11-03 02:09:41,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:09:41,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854624122] [2022-11-03 02:09:41,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:09:41,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:09:41,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:09:41,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:09:41,038 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:09:41,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854624122] [2022-11-03 02:09:41,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854624122] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:09:41,038 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:09:41,038 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:09:41,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246748634] [2022-11-03 02:09:41,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:09:41,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:09:41,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:09:41,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:09:41,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:09:41,039 INFO L87 Difference]: Start difference. First operand 297 states and 390 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 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) [2022-11-03 02:09:41,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:09:41,105 INFO L93 Difference]: Finished difference Result 284 states and 367 transitions. [2022-11-03 02:09:41,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:09:41,105 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 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 14 [2022-11-03 02:09:41,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:09:41,106 INFO L225 Difference]: With dead ends: 284 [2022-11-03 02:09:41,107 INFO L226 Difference]: Without dead ends: 284 [2022-11-03 02:09:41,107 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:09:41,108 INFO L413 NwaCegarLoop]: 217 mSDtfsCounter, 193 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:09:41,108 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 261 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:09:41,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2022-11-03 02:09:41,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 284. [2022-11-03 02:09:41,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 175 states have (on average 2.097142857142857) internal successors, (367), 283 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:09:41,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 367 transitions. [2022-11-03 02:09:41,113 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 367 transitions. Word has length 14 [2022-11-03 02:09:41,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:09:41,114 INFO L495 AbstractCegarLoop]: Abstraction has 284 states and 367 transitions. [2022-11-03 02:09:41,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 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) [2022-11-03 02:09:41,114 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 367 transitions. [2022-11-03 02:09:41,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-03 02:09:41,114 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:09:41,115 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:09:41,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-03 02:09:41,115 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr93REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] === [2022-11-03 02:09:41,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:09:41,115 INFO L85 PathProgramCache]: Analyzing trace with hash 1698896675, now seen corresponding path program 1 times [2022-11-03 02:09:41,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:09:41,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831741350] [2022-11-03 02:09:41,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:09:41,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:09:41,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:09:41,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:09:41,146 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:09:41,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831741350] [2022-11-03 02:09:41,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831741350] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:09:41,146 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:09:41,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 02:09:41,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760697440] [2022-11-03 02:09:41,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:09:41,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:09:41,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:09:41,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:09:41,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:09:41,148 INFO L87 Difference]: Start difference. First operand 284 states and 367 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:09:41,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:09:41,347 INFO L93 Difference]: Finished difference Result 268 states and 335 transitions. [2022-11-03 02:09:41,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:09:41,348 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-03 02:09:41,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:09:41,349 INFO L225 Difference]: With dead ends: 268 [2022-11-03 02:09:41,349 INFO L226 Difference]: Without dead ends: 268 [2022-11-03 02:09:41,349 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:09:41,350 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 71 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:09:41,350 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 235 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 02:09:41,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2022-11-03 02:09:41,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 268. [2022-11-03 02:09:41,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 175 states have (on average 1.9142857142857144) internal successors, (335), 267 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:09:41,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 335 transitions. [2022-11-03 02:09:41,356 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 335 transitions. Word has length 15 [2022-11-03 02:09:41,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:09:41,356 INFO L495 AbstractCegarLoop]: Abstraction has 268 states and 335 transitions. [2022-11-03 02:09:41,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:09:41,356 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 335 transitions. [2022-11-03 02:09:41,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-03 02:09:41,357 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:09:41,357 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:09:41,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-03 02:09:41,357 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr94REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] === [2022-11-03 02:09:41,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:09:41,358 INFO L85 PathProgramCache]: Analyzing trace with hash 1698896676, now seen corresponding path program 1 times [2022-11-03 02:09:41,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:09:41,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929814639] [2022-11-03 02:09:41,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:09:41,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:09:41,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:09:41,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:09:41,405 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:09:41,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929814639] [2022-11-03 02:09:41,406 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929814639] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:09:41,406 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:09:41,406 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 02:09:41,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471016430] [2022-11-03 02:09:41,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:09:41,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:09:41,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:09:41,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:09:41,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:09:41,407 INFO L87 Difference]: Start difference. First operand 268 states and 335 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:09:41,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:09:41,611 INFO L93 Difference]: Finished difference Result 252 states and 303 transitions. [2022-11-03 02:09:41,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:09:41,612 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-03 02:09:41,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:09:41,613 INFO L225 Difference]: With dead ends: 252 [2022-11-03 02:09:41,613 INFO L226 Difference]: Without dead ends: 252 [2022-11-03 02:09:41,613 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:09:41,614 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 55 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:09:41,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 242 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 02:09:41,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2022-11-03 02:09:41,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 252. [2022-11-03 02:09:41,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 175 states have (on average 1.7314285714285715) internal successors, (303), 251 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:09:41,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 303 transitions. [2022-11-03 02:09:41,619 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 303 transitions. Word has length 15 [2022-11-03 02:09:41,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:09:41,619 INFO L495 AbstractCegarLoop]: Abstraction has 252 states and 303 transitions. [2022-11-03 02:09:41,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:09:41,621 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 303 transitions. [2022-11-03 02:09:41,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-03 02:09:41,622 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:09:41,623 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:09:41,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-03 02:09:41,623 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] === [2022-11-03 02:09:41,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:09:41,624 INFO L85 PathProgramCache]: Analyzing trace with hash 915322282, now seen corresponding path program 1 times [2022-11-03 02:09:41,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:09:41,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567508693] [2022-11-03 02:09:41,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:09:41,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:09:41,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:09:41,718 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:09:41,718 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:09:41,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567508693] [2022-11-03 02:09:41,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567508693] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:09:41,719 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:09:41,719 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:09:41,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248544057] [2022-11-03 02:09:41,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:09:41,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:09:41,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:09:41,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:09:41,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:09:41,721 INFO L87 Difference]: Start difference. First operand 252 states and 303 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:09:41,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:09:41,886 INFO L93 Difference]: Finished difference Result 272 states and 307 transitions. [2022-11-03 02:09:41,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:09:41,887 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-11-03 02:09:41,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:09:41,888 INFO L225 Difference]: With dead ends: 272 [2022-11-03 02:09:41,888 INFO L226 Difference]: Without dead ends: 272 [2022-11-03 02:09:41,889 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-03 02:09:41,889 INFO L413 NwaCegarLoop]: 242 mSDtfsCounter, 567 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 567 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:09:41,889 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [567 Valid, 490 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:09:41,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2022-11-03 02:09:41,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 252. [2022-11-03 02:09:41,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 175 states have (on average 1.7257142857142858) internal successors, (302), 251 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:09:41,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 302 transitions. [2022-11-03 02:09:41,898 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 302 transitions. Word has length 17 [2022-11-03 02:09:41,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:09:41,898 INFO L495 AbstractCegarLoop]: Abstraction has 252 states and 302 transitions. [2022-11-03 02:09:41,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:09:41,899 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 302 transitions. [2022-11-03 02:09:41,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-03 02:09:41,900 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:09:41,900 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:09:41,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-03 02:09:41,900 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr95REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] === [2022-11-03 02:09:41,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:09:41,901 INFO L85 PathProgramCache]: Analyzing trace with hash 552141732, now seen corresponding path program 1 times [2022-11-03 02:09:41,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:09:41,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507942533] [2022-11-03 02:09:41,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:09:41,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:09:41,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:09:42,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:09:42,013 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:09:42,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507942533] [2022-11-03 02:09:42,015 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507942533] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:09:42,015 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:09:42,015 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:09:42,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141562247] [2022-11-03 02:09:42,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:09:42,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:09:42,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:09:42,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:09:42,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:09:42,017 INFO L87 Difference]: Start difference. First operand 252 states and 302 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 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) [2022-11-03 02:09:42,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:09:42,226 INFO L93 Difference]: Finished difference Result 339 states and 384 transitions. [2022-11-03 02:09:42,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-03 02:09:42,227 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-11-03 02:09:42,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:09:42,228 INFO L225 Difference]: With dead ends: 339 [2022-11-03 02:09:42,228 INFO L226 Difference]: Without dead ends: 339 [2022-11-03 02:09:42,228 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-03 02:09:42,229 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 242 mSDsluCounter, 611 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 696 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:09:42,229 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [242 Valid, 696 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 02:09:42,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2022-11-03 02:09:42,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 250. [2022-11-03 02:09:42,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 173 states have (on average 1.716763005780347) internal successors, (297), 249 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:09:42,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 297 transitions. [2022-11-03 02:09:42,237 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 297 transitions. Word has length 17 [2022-11-03 02:09:42,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:09:42,237 INFO L495 AbstractCegarLoop]: Abstraction has 250 states and 297 transitions. [2022-11-03 02:09:42,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 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) [2022-11-03 02:09:42,238 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 297 transitions. [2022-11-03 02:09:42,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-03 02:09:42,240 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:09:42,240 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:09:42,241 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-03 02:09:42,241 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] === [2022-11-03 02:09:42,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:09:42,241 INFO L85 PathProgramCache]: Analyzing trace with hash 944178417, now seen corresponding path program 1 times [2022-11-03 02:09:42,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:09:42,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776933579] [2022-11-03 02:09:42,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:09:42,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:09:42,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:09:42,794 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:09:42,794 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:09:42,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776933579] [2022-11-03 02:09:42,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776933579] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:09:42,795 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:09:42,795 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-03 02:09:42,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179041806] [2022-11-03 02:09:42,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:09:42,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-03 02:09:42,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:09:42,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-03 02:09:42,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-11-03 02:09:42,796 INFO L87 Difference]: Start difference. First operand 250 states and 297 transitions. Second operand has 11 states, 10 states have (on average 1.9) internal successors, (19), 11 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:09:43,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:09:43,685 INFO L93 Difference]: Finished difference Result 252 states and 299 transitions. [2022-11-03 02:09:43,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-03 02:09:43,685 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 1.9) internal successors, (19), 11 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-11-03 02:09:43,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:09:43,687 INFO L225 Difference]: With dead ends: 252 [2022-11-03 02:09:43,687 INFO L226 Difference]: Without dead ends: 252 [2022-11-03 02:09:43,687 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2022-11-03 02:09:43,688 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 219 mSDsluCounter, 740 mSDsCounter, 0 mSdLazyCounter, 1007 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 871 SdHoareTripleChecker+Invalid, 1058 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 1007 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-03 02:09:43,688 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 871 Invalid, 1058 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 1007 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-03 02:09:43,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2022-11-03 02:09:43,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 249. [2022-11-03 02:09:43,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 173 states have (on average 1.7109826589595376) internal successors, (296), 248 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:09:43,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 296 transitions. [2022-11-03 02:09:43,696 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 296 transitions. Word has length 19 [2022-11-03 02:09:43,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:09:43,696 INFO L495 AbstractCegarLoop]: Abstraction has 249 states and 296 transitions. [2022-11-03 02:09:43,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 1.9) internal successors, (19), 11 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:09:43,696 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 296 transitions. [2022-11-03 02:09:43,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-03 02:09:43,697 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:09:43,697 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:09:43,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-03 02:09:43,697 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] === [2022-11-03 02:09:43,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:09:43,698 INFO L85 PathProgramCache]: Analyzing trace with hash 944178418, now seen corresponding path program 1 times [2022-11-03 02:09:43,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:09:43,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88627289] [2022-11-03 02:09:43,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:09:43,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:09:43,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:09:44,416 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:09:44,417 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:09:44,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88627289] [2022-11-03 02:09:44,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88627289] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:09:44,417 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:09:44,417 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-03 02:09:44,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684271764] [2022-11-03 02:09:44,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:09:44,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-03 02:09:44,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:09:44,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-03 02:09:44,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-03 02:09:44,419 INFO L87 Difference]: Start difference. First operand 249 states and 296 transitions. Second operand has 12 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 12 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:09:46,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:09:46,007 INFO L93 Difference]: Finished difference Result 473 states and 560 transitions. [2022-11-03 02:09:46,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-03 02:09:46,007 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 12 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-11-03 02:09:46,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:09:46,009 INFO L225 Difference]: With dead ends: 473 [2022-11-03 02:09:46,009 INFO L226 Difference]: Without dead ends: 473 [2022-11-03 02:09:46,010 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=137, Invalid=415, Unknown=0, NotChecked=0, Total=552 [2022-11-03 02:09:46,010 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 422 mSDsluCounter, 1374 mSDsCounter, 0 mSdLazyCounter, 1890 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 422 SdHoareTripleChecker+Valid, 1517 SdHoareTripleChecker+Invalid, 1950 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 1890 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:09:46,010 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [422 Valid, 1517 Invalid, 1950 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 1890 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-03 02:09:46,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2022-11-03 02:09:46,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 248. [2022-11-03 02:09:46,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 173 states have (on average 1.7052023121387283) internal successors, (295), 247 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:09:46,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 295 transitions. [2022-11-03 02:09:46,016 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 295 transitions. Word has length 19 [2022-11-03 02:09:46,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:09:46,016 INFO L495 AbstractCegarLoop]: Abstraction has 248 states and 295 transitions. [2022-11-03 02:09:46,016 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 12 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:09:46,016 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 295 transitions. [2022-11-03 02:09:46,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-03 02:09:46,017 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:09:46,017 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:09:46,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-03 02:09:46,018 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr54REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] === [2022-11-03 02:09:46,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:09:46,018 INFO L85 PathProgramCache]: Analyzing trace with hash 1116123431, now seen corresponding path program 1 times [2022-11-03 02:09:46,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:09:46,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926811343] [2022-11-03 02:09:46,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:09:46,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:09:46,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:09:46,187 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:09:46,187 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:09:46,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926811343] [2022-11-03 02:09:46,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926811343] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:09:46,188 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:09:46,188 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-03 02:09:46,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769955485] [2022-11-03 02:09:46,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:09:46,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-03 02:09:46,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:09:46,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-03 02:09:46,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-03 02:09:46,190 INFO L87 Difference]: Start difference. First operand 248 states and 295 transitions. Second operand has 8 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:09:46,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:09:46,618 INFO L93 Difference]: Finished difference Result 279 states and 315 transitions. [2022-11-03 02:09:46,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-03 02:09:46,619 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 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 [2022-11-03 02:09:46,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:09:46,620 INFO L225 Difference]: With dead ends: 279 [2022-11-03 02:09:46,620 INFO L226 Difference]: Without dead ends: 279 [2022-11-03 02:09:46,620 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2022-11-03 02:09:46,621 INFO L413 NwaCegarLoop]: 218 mSDtfsCounter, 619 mSDsluCounter, 804 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 619 SdHoareTripleChecker+Valid, 936 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:09:46,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [619 Valid, 936 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 02:09:46,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2022-11-03 02:09:46,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 248. [2022-11-03 02:09:46,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 173 states have (on average 1.699421965317919) internal successors, (294), 247 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:09:46,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 294 transitions. [2022-11-03 02:09:46,626 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 294 transitions. Word has length 21 [2022-11-03 02:09:46,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:09:46,626 INFO L495 AbstractCegarLoop]: Abstraction has 248 states and 294 transitions. [2022-11-03 02:09:46,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:09:46,626 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 294 transitions. [2022-11-03 02:09:46,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-03 02:09:46,627 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:09:46,627 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:09:46,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-03 02:09:46,627 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr103REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] === [2022-11-03 02:09:46,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:09:46,628 INFO L85 PathProgramCache]: Analyzing trace with hash -936319035, now seen corresponding path program 1 times [2022-11-03 02:09:46,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:09:46,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445569416] [2022-11-03 02:09:46,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:09:46,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:09:46,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:09:46,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:09:46,781 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:09:46,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445569416] [2022-11-03 02:09:46,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445569416] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:09:46,782 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:09:46,782 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:09:46,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703902195] [2022-11-03 02:09:46,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:09:46,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 02:09:46,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:09:46,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 02:09:46,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-03 02:09:46,783 INFO L87 Difference]: Start difference. First operand 248 states and 294 transitions. Second operand has 7 states, 7 states have (on average 3.0) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:09:47,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:09:47,176 INFO L93 Difference]: Finished difference Result 333 states and 377 transitions. [2022-11-03 02:09:47,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-03 02:09:47,177 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 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 [2022-11-03 02:09:47,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:09:47,178 INFO L225 Difference]: With dead ends: 333 [2022-11-03 02:09:47,178 INFO L226 Difference]: Without dead ends: 333 [2022-11-03 02:09:47,179 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-11-03 02:09:47,179 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 217 mSDsluCounter, 956 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 995 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:09:47,180 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 995 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 02:09:47,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2022-11-03 02:09:47,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 236. [2022-11-03 02:09:47,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 161 states have (on average 1.6956521739130435) internal successors, (273), 235 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:09:47,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 273 transitions. [2022-11-03 02:09:47,184 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 273 transitions. Word has length 21 [2022-11-03 02:09:47,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:09:47,185 INFO L495 AbstractCegarLoop]: Abstraction has 236 states and 273 transitions. [2022-11-03 02:09:47,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:09:47,188 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 273 transitions. [2022-11-03 02:09:47,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-03 02:09:47,190 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:09:47,190 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:09:47,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-03 02:09:47,191 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr151ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] === [2022-11-03 02:09:47,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:09:47,191 INFO L85 PathProgramCache]: Analyzing trace with hash 1038856689, now seen corresponding path program 1 times [2022-11-03 02:09:47,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:09:47,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184153068] [2022-11-03 02:09:47,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:09:47,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:09:47,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:09:47,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:09:47,312 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:09:47,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184153068] [2022-11-03 02:09:47,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184153068] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:09:47,312 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:09:47,313 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:09:47,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806814438] [2022-11-03 02:09:47,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:09:47,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:09:47,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:09:47,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:09:47,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:09:47,316 INFO L87 Difference]: Start difference. First operand 236 states and 273 transitions. Second operand has 5 states, 4 states have (on average 5.5) internal successors, (22), 4 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) [2022-11-03 02:09:47,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:09:47,667 INFO L93 Difference]: Finished difference Result 243 states and 273 transitions. [2022-11-03 02:09:47,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:09:47,668 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 4 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 22 [2022-11-03 02:09:47,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:09:47,669 INFO L225 Difference]: With dead ends: 243 [2022-11-03 02:09:47,669 INFO L226 Difference]: Without dead ends: 241 [2022-11-03 02:09:47,669 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:09:47,670 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 24 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 420 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:09:47,670 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 461 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 420 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 02:09:47,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2022-11-03 02:09:47,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 235. [2022-11-03 02:09:47,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 160 states have (on average 1.69375) internal successors, (271), 234 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:09:47,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 271 transitions. [2022-11-03 02:09:47,674 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 271 transitions. Word has length 22 [2022-11-03 02:09:47,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:09:47,675 INFO L495 AbstractCegarLoop]: Abstraction has 235 states and 271 transitions. [2022-11-03 02:09:47,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 4 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) [2022-11-03 02:09:47,675 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 271 transitions. [2022-11-03 02:09:47,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-03 02:09:47,675 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:09:47,675 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:09:47,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-03 02:09:47,676 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr24REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] === [2022-11-03 02:09:47,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:09:47,676 INFO L85 PathProgramCache]: Analyzing trace with hash 41868091, now seen corresponding path program 1 times [2022-11-03 02:09:47,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:09:47,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806004282] [2022-11-03 02:09:47,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:09:47,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:09:47,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:09:47,830 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-03 02:09:47,831 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:09:47,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806004282] [2022-11-03 02:09:47,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806004282] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:09:47,831 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:09:47,832 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:09:47,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303902266] [2022-11-03 02:09:47,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:09:47,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:09:47,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:09:47,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:09:47,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:09:47,833 INFO L87 Difference]: Start difference. First operand 235 states and 271 transitions. Second operand has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 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) [2022-11-03 02:09:48,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:09:48,144 INFO L93 Difference]: Finished difference Result 249 states and 288 transitions. [2022-11-03 02:09:48,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:09:48,145 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 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 23 [2022-11-03 02:09:48,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:09:48,146 INFO L225 Difference]: With dead ends: 249 [2022-11-03 02:09:48,146 INFO L226 Difference]: Without dead ends: 249 [2022-11-03 02:09:48,146 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-03 02:09:48,146 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 47 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:09:48,147 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 484 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 02:09:48,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2022-11-03 02:09:48,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 234. [2022-11-03 02:09:48,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 160 states have (on average 1.6875) internal successors, (270), 233 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:09:48,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 270 transitions. [2022-11-03 02:09:48,151 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 270 transitions. Word has length 23 [2022-11-03 02:09:48,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:09:48,151 INFO L495 AbstractCegarLoop]: Abstraction has 234 states and 270 transitions. [2022-11-03 02:09:48,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 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) [2022-11-03 02:09:48,152 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 270 transitions. [2022-11-03 02:09:48,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-03 02:09:48,152 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:09:48,152 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:09:48,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-03 02:09:48,152 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr25REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] === [2022-11-03 02:09:48,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:09:48,153 INFO L85 PathProgramCache]: Analyzing trace with hash 41868092, now seen corresponding path program 1 times [2022-11-03 02:09:48,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:09:48,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271063218] [2022-11-03 02:09:48,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:09:48,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:09:48,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:09:48,671 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:09:48,672 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:09:48,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271063218] [2022-11-03 02:09:48,672 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271063218] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:09:48,672 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:09:48,672 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-03 02:09:48,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214568215] [2022-11-03 02:09:48,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:09:48,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-03 02:09:48,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:09:48,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-03 02:09:48,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-03 02:09:48,675 INFO L87 Difference]: Start difference. First operand 234 states and 270 transitions. Second operand has 9 states, 8 states have (on average 2.875) internal successors, (23), 9 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) [2022-11-03 02:09:49,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:09:49,654 INFO L93 Difference]: Finished difference Result 345 states and 400 transitions. [2022-11-03 02:09:49,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 02:09:49,655 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.875) internal successors, (23), 9 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 [2022-11-03 02:09:49,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:09:49,656 INFO L225 Difference]: With dead ends: 345 [2022-11-03 02:09:49,656 INFO L226 Difference]: Without dead ends: 345 [2022-11-03 02:09:49,657 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2022-11-03 02:09:49,657 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 405 mSDsluCounter, 682 mSDsCounter, 0 mSdLazyCounter, 990 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 405 SdHoareTripleChecker+Valid, 803 SdHoareTripleChecker+Invalid, 1022 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 990 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-03 02:09:49,657 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [405 Valid, 803 Invalid, 1022 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 990 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-03 02:09:49,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2022-11-03 02:09:49,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 233. [2022-11-03 02:09:49,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 160 states have (on average 1.68125) internal successors, (269), 232 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:09:49,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 269 transitions. [2022-11-03 02:09:49,663 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 269 transitions. Word has length 23 [2022-11-03 02:09:49,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:09:49,663 INFO L495 AbstractCegarLoop]: Abstraction has 233 states and 269 transitions. [2022-11-03 02:09:49,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.875) internal successors, (23), 9 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) [2022-11-03 02:09:49,663 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 269 transitions. [2022-11-03 02:09:49,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-03 02:09:49,665 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:09:49,665 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:09:49,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-03 02:09:49,666 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr123REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] === [2022-11-03 02:09:49,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:09:49,666 INFO L85 PathProgramCache]: Analyzing trace with hash 1764034550, now seen corresponding path program 1 times [2022-11-03 02:09:49,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:09:49,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411435153] [2022-11-03 02:09:49,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:09:49,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:09:49,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:09:49,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:09:49,698 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:09:49,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411435153] [2022-11-03 02:09:49,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411435153] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:09:49,699 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:09:49,699 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:09:49,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189306030] [2022-11-03 02:09:49,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:09:49,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:09:49,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:09:49,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:09:49,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:09:49,701 INFO L87 Difference]: Start difference. First operand 233 states and 269 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:09:49,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:09:49,779 INFO L93 Difference]: Finished difference Result 220 states and 246 transitions. [2022-11-03 02:09:49,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:09:49,779 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-03 02:09:49,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:09:49,780 INFO L225 Difference]: With dead ends: 220 [2022-11-03 02:09:49,780 INFO L226 Difference]: Without dead ends: 203 [2022-11-03 02:09:49,781 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:09:49,781 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 26 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:09:49,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 334 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:09:49,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2022-11-03 02:09:49,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 203. [2022-11-03 02:09:49,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 130 states have (on average 1.7615384615384615) internal successors, (229), 202 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:09:49,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 229 transitions. [2022-11-03 02:09:49,786 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 229 transitions. Word has length 24 [2022-11-03 02:09:49,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:09:49,786 INFO L495 AbstractCegarLoop]: Abstraction has 203 states and 229 transitions. [2022-11-03 02:09:49,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:09:49,786 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 229 transitions. [2022-11-03 02:09:49,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-03 02:09:49,787 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:09:49,787 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:09:49,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-03 02:09:49,787 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr54REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] === [2022-11-03 02:09:49,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:09:49,788 INFO L85 PathProgramCache]: Analyzing trace with hash 1592358732, now seen corresponding path program 1 times [2022-11-03 02:09:49,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:09:49,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589490258] [2022-11-03 02:09:49,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:09:49,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:09:49,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:09:49,989 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:09:49,989 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:09:49,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589490258] [2022-11-03 02:09:49,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589490258] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:09:49,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1735825693] [2022-11-03 02:09:49,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:09:49,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:09:49,990 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aea6a77-ef62-4879-93a9-693cb42b8bdd/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:09:49,994 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aea6a77-ef62-4879-93a9-693cb42b8bdd/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:09:50,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aea6a77-ef62-4879-93a9-693cb42b8bdd/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 02:09:50,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:09:50,158 INFO L263 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 15 conjunts are in the unsatisfiable core [2022-11-03 02:09:50,164 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:09:50,215 INFO L390 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 [2022-11-03 02:09:50,281 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-03 02:09:50,281 INFO L390 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 11 treesize of output 11 [2022-11-03 02:09:50,430 INFO L390 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 14 [2022-11-03 02:09:50,449 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:09:50,449 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:09:50,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1735825693] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:09:50,450 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 02:09:50,450 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 14 [2022-11-03 02:09:50,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735947642] [2022-11-03 02:09:50,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:09:50,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 02:09:50,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:09:50,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 02:09:50,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-11-03 02:09:50,452 INFO L87 Difference]: Start difference. First operand 203 states and 229 transitions. Second operand has 7 states, 6 states have (on average 4.166666666666667) 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) [2022-11-03 02:09:51,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:09:51,026 INFO L93 Difference]: Finished difference Result 334 states and 375 transitions. [2022-11-03 02:09:51,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-03 02:09:51,027 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.166666666666667) 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 [2022-11-03 02:09:51,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:09:51,028 INFO L225 Difference]: With dead ends: 334 [2022-11-03 02:09:51,029 INFO L226 Difference]: Without dead ends: 334 [2022-11-03 02:09:51,029 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2022-11-03 02:09:51,029 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 485 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 609 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 SdHoareTripleChecker+Valid, 424 SdHoareTripleChecker+Invalid, 637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:09:51,030 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [485 Valid, 424 Invalid, 637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 609 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-03 02:09:51,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2022-11-03 02:09:51,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 206. [2022-11-03 02:09:51,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 135 states have (on average 1.7481481481481482) internal successors, (236), 205 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:09:51,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 236 transitions. [2022-11-03 02:09:51,034 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 236 transitions. Word has length 25 [2022-11-03 02:09:51,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:09:51,034 INFO L495 AbstractCegarLoop]: Abstraction has 206 states and 236 transitions. [2022-11-03 02:09:51,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.166666666666667) 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) [2022-11-03 02:09:51,035 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 236 transitions. [2022-11-03 02:09:51,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-03 02:09:51,035 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:09:51,035 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:09:51,071 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aea6a77-ef62-4879-93a9-693cb42b8bdd/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-03 02:09:51,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aea6a77-ef62-4879-93a9-693cb42b8bdd/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-11-03 02:09:51,236 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr55REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] === [2022-11-03 02:09:51,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:09:51,236 INFO L85 PathProgramCache]: Analyzing trace with hash 1592358733, now seen corresponding path program 1 times [2022-11-03 02:09:51,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:09:51,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720588518] [2022-11-03 02:09:51,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:09:51,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:09:51,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:09:51,439 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:09:51,440 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:09:51,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720588518] [2022-11-03 02:09:51,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720588518] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:09:51,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1239313081] [2022-11-03 02:09:51,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:09:51,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:09:51,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aea6a77-ef62-4879-93a9-693cb42b8bdd/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:09:51,442 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aea6a77-ef62-4879-93a9-693cb42b8bdd/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:09:51,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aea6a77-ef62-4879-93a9-693cb42b8bdd/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 02:09:51,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:09:51,610 INFO L263 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-03 02:09:51,613 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:09:51,641 INFO L390 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 14 [2022-11-03 02:09:51,660 INFO L390 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 14 [2022-11-03 02:09:51,679 INFO L390 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 14 [2022-11-03 02:09:51,702 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-03 02:09:51,703 INFO L390 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 11 treesize of output 11 [2022-11-03 02:09:51,711 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-03 02:09:51,711 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:09:51,711 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1239313081] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:09:51,711 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 02:09:51,712 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 8 [2022-11-03 02:09:51,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144196886] [2022-11-03 02:09:51,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:09:51,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:09:51,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:09:51,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:09:51,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-03 02:09:51,714 INFO L87 Difference]: Start difference. First operand 206 states and 236 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) [2022-11-03 02:09:52,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:09:52,007 INFO L93 Difference]: Finished difference Result 227 states and 260 transitions. [2022-11-03 02:09:52,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:09:52,008 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 25 [2022-11-03 02:09:52,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:09:52,009 INFO L225 Difference]: With dead ends: 227 [2022-11-03 02:09:52,009 INFO L226 Difference]: Without dead ends: 227 [2022-11-03 02:09:52,009 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-11-03 02:09:52,010 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 445 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 445 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:09:52,010 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [445 Valid, 187 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 02:09:52,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2022-11-03 02:09:52,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 207. [2022-11-03 02:09:52,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 136 states have (on average 1.7426470588235294) internal successors, (237), 206 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:09:52,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 237 transitions. [2022-11-03 02:09:52,014 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 237 transitions. Word has length 25 [2022-11-03 02:09:52,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:09:52,014 INFO L495 AbstractCegarLoop]: Abstraction has 207 states and 237 transitions. [2022-11-03 02:09:52,015 INFO L496 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) [2022-11-03 02:09:52,015 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 237 transitions. [2022-11-03 02:09:52,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-03 02:09:52,015 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:09:52,015 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:09:52,053 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aea6a77-ef62-4879-93a9-693cb42b8bdd/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-03 02:09:52,225 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aea6a77-ef62-4879-93a9-693cb42b8bdd/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:09:52,225 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr38REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] === [2022-11-03 02:09:52,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:09:52,226 INFO L85 PathProgramCache]: Analyzing trace with hash 1726985257, now seen corresponding path program 1 times [2022-11-03 02:09:52,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:09:52,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174572289] [2022-11-03 02:09:52,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:09:52,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:09:52,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:09:53,137 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:09:53,138 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:09:53,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174572289] [2022-11-03 02:09:53,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174572289] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:09:53,138 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:09:53,138 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-03 02:09:53,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59219293] [2022-11-03 02:09:53,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:09:53,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-03 02:09:53,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:09:53,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-03 02:09:53,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2022-11-03 02:09:53,139 INFO L87 Difference]: Start difference. First operand 207 states and 237 transitions. Second operand has 13 states, 13 states have (on average 2.0) internal successors, (26), 13 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:09:54,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:09:54,427 INFO L93 Difference]: Finished difference Result 208 states and 237 transitions. [2022-11-03 02:09:54,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-03 02:09:54,427 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.0) internal successors, (26), 13 states have internal predecessors, (26), 0 states have call successors, (0), 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 26 [2022-11-03 02:09:54,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:09:54,428 INFO L225 Difference]: With dead ends: 208 [2022-11-03 02:09:54,428 INFO L226 Difference]: Without dead ends: 208 [2022-11-03 02:09:54,429 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=125, Invalid=475, Unknown=0, NotChecked=0, Total=600 [2022-11-03 02:09:54,429 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 280 mSDsluCounter, 1065 mSDsCounter, 0 mSdLazyCounter, 938 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 1145 SdHoareTripleChecker+Invalid, 980 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 938 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-03 02:09:54,429 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 1145 Invalid, 980 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 938 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-03 02:09:54,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2022-11-03 02:09:54,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 207. [2022-11-03 02:09:54,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 136 states have (on average 1.7352941176470589) internal successors, (236), 206 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:09:54,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 236 transitions. [2022-11-03 02:09:54,433 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 236 transitions. Word has length 26 [2022-11-03 02:09:54,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:09:54,434 INFO L495 AbstractCegarLoop]: Abstraction has 207 states and 236 transitions. [2022-11-03 02:09:54,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.0) internal successors, (26), 13 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:09:54,434 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 236 transitions. [2022-11-03 02:09:54,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-03 02:09:54,434 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:09:54,434 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:09:54,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-03 02:09:54,435 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] === [2022-11-03 02:09:54,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:09:54,435 INFO L85 PathProgramCache]: Analyzing trace with hash -1527445437, now seen corresponding path program 1 times [2022-11-03 02:09:54,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:09:54,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607217707] [2022-11-03 02:09:54,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:09:54,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:09:54,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:09:55,260 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:09:55,261 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:09:55,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607217707] [2022-11-03 02:09:55,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607217707] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:09:55,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [235928044] [2022-11-03 02:09:55,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:09:55,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:09:55,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aea6a77-ef62-4879-93a9-693cb42b8bdd/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:09:55,265 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aea6a77-ef62-4879-93a9-693cb42b8bdd/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:09:55,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aea6a77-ef62-4879-93a9-693cb42b8bdd/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-03 02:09:55,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:09:55,442 INFO L263 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 54 conjunts are in the unsatisfiable core [2022-11-03 02:09:55,446 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:09:55,478 INFO L390 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 [2022-11-03 02:09:55,506 INFO L390 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 13 treesize of output 9 [2022-11-03 02:09:55,513 INFO L390 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 13 treesize of output 9 [2022-11-03 02:09:55,559 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-03 02:09:55,559 INFO L390 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 11 treesize of output 11 [2022-11-03 02:09:55,590 INFO L390 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 19 treesize of output 18 [2022-11-03 02:09:55,598 INFO L390 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 23 treesize of output 22 [2022-11-03 02:09:55,653 INFO L356 Elim1Store]: treesize reduction 37, result has 15.9 percent of original size [2022-11-03 02:09:55,657 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 41 [2022-11-03 02:09:55,670 INFO L390 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 0 case distinctions, treesize of input 32 treesize of output 34 [2022-11-03 02:09:55,742 INFO L390 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 0 case distinctions, treesize of input 32 treesize of output 34 [2022-11-03 02:09:55,755 INFO L356 Elim1Store]: treesize reduction 37, result has 15.9 percent of original size [2022-11-03 02:09:55,756 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 41 [2022-11-03 02:09:55,837 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:09:55,844 INFO L356 Elim1Store]: treesize reduction 31, result has 8.8 percent of original size [2022-11-03 02:09:55,844 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 65 treesize of output 37 [2022-11-03 02:09:55,853 INFO L356 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-11-03 02:09:55,854 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 18 [2022-11-03 02:09:55,862 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:09:55,862 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:09:57,113 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_main_~list~0#1.offset| 4))) (and (forall ((|ULTIMATE.start_main_~#iter~0#1.offset| Int) (v_ArrVal_866 Int)) (= (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~#iter~0#1.base| (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~#iter~0#1.base|) |ULTIMATE.start_main_~#iter~0#1.offset| |c_ULTIMATE.start_main_~list~0#1.offset|) (+ |ULTIMATE.start_main_~#iter~0#1.offset| 4) v_ArrVal_866)) |c_ULTIMATE.start_main_~list~0#1.base|) .cse0) 0)) (forall ((|ULTIMATE.start_main_~#iter~0#1.offset| Int) (v_ArrVal_869 Int)) (= (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~#iter~0#1.base| (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~#iter~0#1.base|) |ULTIMATE.start_main_~#iter~0#1.offset| |c_ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~#iter~0#1.offset| 4) v_ArrVal_869)) |c_ULTIMATE.start_main_~list~0#1.base|) .cse0) 0)))) is different from false [2022-11-03 02:09:58,891 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:09:58,975 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:09:58,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [235928044] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:09:58,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [53462086] [2022-11-03 02:09:58,994 INFO L159 IcfgInterpreter]: Started Sifa with 26 locations of interest [2022-11-03 02:09:58,994 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:09:58,998 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:09:59,003 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:09:59,004 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:09:59,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:09:59,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:09:59,067 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-03 02:09:59,083 INFO L390 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 13 treesize of output 9 [2022-11-03 02:09:59,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:09:59,093 INFO L390 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 34 treesize of output 21 [2022-11-03 02:09:59,104 INFO L390 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 13 treesize of output 9 [2022-11-03 02:09:59,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:09:59,137 INFO L390 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 25 treesize of output 13 [2022-11-03 02:09:59,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:09:59,149 INFO L390 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 26 treesize of output 28 [2022-11-03 02:09:59,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:09:59,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:09:59,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:09:59,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:09:59,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:09:59,167 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2022-11-03 02:09:59,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:09:59,180 INFO L390 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 25 treesize of output 13 [2022-11-03 02:09:59,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:09:59,205 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 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 [2022-11-03 02:09:59,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:09:59,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:09:59,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:09:59,221 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 36 [2022-11-03 02:09:59,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:09:59,236 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 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 [2022-11-03 02:09:59,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:09:59,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:09:59,267 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-11-03 02:09:59,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:09:59,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:09:59,282 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-11-03 02:09:59,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:09:59,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:09:59,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:09:59,299 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 36 [2022-11-03 02:09:59,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:09:59,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:09:59,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:09:59,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:09:59,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:09:59,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:09:59,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:09:59,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:09:59,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:09:59,358 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 56 [2022-11-03 02:09:59,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:09:59,398 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:09:59,399 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:09:59,424 INFO L356 Elim1Store]: treesize reduction 48, result has 32.4 percent of original size [2022-11-03 02:09:59,425 INFO L390 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 4 new quantified variables, introduced 4 case distinctions, treesize of input 180 treesize of output 144 [2022-11-03 02:09:59,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:09:59,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:09:59,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:09:59,453 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 44 [2022-11-03 02:09:59,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:09:59,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:09:59,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:09:59,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:09:59,472 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 99 [2022-11-03 02:09:59,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:09:59,535 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:09:59,555 INFO L356 Elim1Store]: treesize reduction 45, result has 13.5 percent of original size [2022-11-03 02:09:59,555 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 175 treesize of output 131 [2022-11-03 02:09:59,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:09:59,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:09:59,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:09:59,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:09:59,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:09:59,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:09:59,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:09:59,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:09:59,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:09:59,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:09:59,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:09:59,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:09:59,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:09:59,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:09:59,593 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 19 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 55 [2022-11-03 02:09:59,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:09:59,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:09:59,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:09:59,612 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 47 [2022-11-03 02:09:59,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:09:59,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:09:59,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:09:59,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:09:59,640 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 47 [2022-11-03 02:09:59,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:09:59,690 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:09:59,708 INFO L356 Elim1Store]: treesize reduction 41, result has 14.6 percent of original size [2022-11-03 02:09:59,709 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 171 treesize of output 138 [2022-11-03 02:09:59,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:09:59,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:09:59,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:09:59,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:09:59,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:09:59,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:09:59,737 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 54 [2022-11-03 02:09:59,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:09:59,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:09:59,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:09:59,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:09:59,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:09:59,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:09:59,761 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 55 [2022-11-03 02:09:59,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:09:59,912 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:09:59,913 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:09:59,914 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:09:59,973 INFO L356 Elim1Store]: treesize reduction 94, result has 27.7 percent of original size [2022-11-03 02:09:59,973 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 12 case distinctions, treesize of input 483 treesize of output 492 [2022-11-03 02:09:59,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:09:59,998 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:09:59,999 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:10:00,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:00,001 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:10:00,052 INFO L356 Elim1Store]: treesize reduction 78, result has 26.4 percent of original size [2022-11-03 02:10:00,053 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 13 case distinctions, treesize of input 506 treesize of output 466 [2022-11-03 02:10:00,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:00,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:00,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:00,080 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:10:00,089 INFO L356 Elim1Store]: treesize reduction 44, result has 2.2 percent of original size [2022-11-03 02:10:00,090 INFO L390 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 5 case distinctions, treesize of input 611 treesize of output 570 [2022-11-03 02:10:00,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:00,650 INFO L356 Elim1Store]: treesize reduction 296, result has 15.9 percent of original size [2022-11-03 02:10:00,651 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 19 case distinctions, treesize of input 1246 treesize of output 1227 [2022-11-03 02:10:01,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:01,599 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:10:01,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:01,601 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:10:01,604 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:10:01,726 INFO L356 Elim1Store]: treesize reduction 200, result has 17.0 percent of original size [2022-11-03 02:10:01,727 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 18 case distinctions, treesize of input 3094 treesize of output 1883 [2022-11-03 02:10:01,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:01,798 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:10:01,799 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:10:01,801 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:10:01,916 INFO L356 Elim1Store]: treesize reduction 298, result has 17.9 percent of original size [2022-11-03 02:10:01,916 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 17 case distinctions, treesize of input 3084 treesize of output 2745 [2022-11-03 02:10:01,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:01,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:02,045 INFO L356 Elim1Store]: treesize reduction 147, result has 9.3 percent of original size [2022-11-03 02:10:02,045 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 3044 treesize of output 2703 [2022-11-03 02:10:03,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:03,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:03,594 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:10:03,595 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:10:03,595 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:10:03,766 INFO L356 Elim1Store]: treesize reduction 242, result has 10.4 percent of original size [2022-11-03 02:10:03,767 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 2 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 23 case distinctions, treesize of input 5824 treesize of output 3473 [2022-11-03 02:10:03,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:03,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:03,875 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:10:03,876 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:10:03,876 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:10:03,975 INFO L356 Elim1Store]: treesize reduction 330, result has 8.8 percent of original size [2022-11-03 02:10:03,975 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 2 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 22 case distinctions, treesize of input 5842 treesize of output 5151 [2022-11-03 02:10:04,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:04,288 INFO L356 Elim1Store]: treesize reduction 410, result has 13.7 percent of original size [2022-11-03 02:10:04,288 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 26 case distinctions, treesize of input 5825 treesize of output 5553 [2022-11-03 02:10:04,527 INFO L356 Elim1Store]: treesize reduction 184, result has 22.7 percent of original size [2022-11-03 02:10:04,528 INFO L390 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 5763 treesize of output 5115 [2022-11-03 02:10:08,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:08,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:08,499 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:10:08,501 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:10:08,502 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:10:08,752 INFO L356 Elim1Store]: treesize reduction 230, result has 10.9 percent of original size [2022-11-03 02:10:08,753 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 23 case distinctions, treesize of input 12602 treesize of output 7452 [2022-11-03 02:10:09,062 INFO L356 Elim1Store]: treesize reduction 262, result has 18.9 percent of original size [2022-11-03 02:10:09,063 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 13 case distinctions, treesize of input 12613 treesize of output 11417 [2022-11-03 02:10:09,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:09,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:09,202 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:10:09,203 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:10:09,203 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:10:09,306 INFO L356 Elim1Store]: treesize reduction 318, result has 9.1 percent of original size [2022-11-03 02:10:09,307 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 22 case distinctions, treesize of input 12340 treesize of output 10916 [2022-11-03 02:10:11,849 INFO L390 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 13 treesize of output 9 [2022-11-03 02:10:11,855 INFO L390 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 13 treesize of output 9 [2022-11-03 02:10:11,860 INFO L390 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 1 [2022-11-03 02:10:11,883 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-03 02:10:11,883 INFO L390 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 1 case distinctions, treesize of input 14 treesize of output 20 [2022-11-03 02:10:11,906 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-03 02:10:11,906 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 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 [2022-11-03 02:10:11,922 INFO L390 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 13 treesize of output 9 [2022-11-03 02:10:11,930 INFO L390 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 19 treesize of output 1 [2022-11-03 02:10:11,937 INFO L390 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 [2022-11-03 02:10:11,976 INFO L356 Elim1Store]: treesize reduction 24, result has 38.5 percent of original size [2022-11-03 02:10:11,977 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 24 treesize of output 31 [2022-11-03 02:10:11,987 INFO L390 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 [2022-11-03 02:10:11,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:11,996 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2022-11-03 02:10:12,036 INFO L356 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-03 02:10:12,037 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-03 02:10:12,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:12,050 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 23 [2022-11-03 02:10:12,068 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 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 [2022-11-03 02:10:12,077 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 16 [2022-11-03 02:10:12,088 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-03 02:10:12,102 INFO L390 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 1 [2022-11-03 02:10:12,107 INFO L390 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 13 treesize of output 9 [2022-11-03 02:10:12,112 INFO L390 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 13 treesize of output 9 [2022-11-03 02:10:12,155 INFO L390 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 [2022-11-03 02:10:12,161 INFO L390 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 [2022-11-03 02:10:12,175 INFO L390 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 [2022-11-03 02:10:12,182 INFO L390 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 [2022-11-03 02:10:12,192 INFO L390 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 [2022-11-03 02:10:12,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:12,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:12,227 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:10:12,231 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 02:10:12,231 INFO L390 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 1 case distinctions, treesize of input 25 treesize of output 27 [2022-11-03 02:10:12,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:12,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:12,242 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:10:12,246 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 02:10:12,246 INFO L390 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 1 case distinctions, treesize of input 25 treesize of output 27 [2022-11-03 02:10:12,260 INFO L390 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 [2022-11-03 02:10:12,328 INFO L390 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 [2022-11-03 02:10:12,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:12,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:12,349 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:10:12,380 INFO L356 Elim1Store]: treesize reduction 62, result has 26.2 percent of original size [2022-11-03 02:10:12,381 INFO L390 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 6 case distinctions, treesize of input 69 treesize of output 70 [2022-11-03 02:10:12,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:12,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:12,401 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:10:12,426 INFO L356 Elim1Store]: treesize reduction 62, result has 26.2 percent of original size [2022-11-03 02:10:12,426 INFO L390 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 6 case distinctions, treesize of input 69 treesize of output 70 [2022-11-03 02:10:12,510 INFO L356 Elim1Store]: treesize reduction 30, result has 44.4 percent of original size [2022-11-03 02:10:12,510 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 37 [2022-11-03 02:10:12,556 INFO L356 Elim1Store]: treesize reduction 30, result has 44.4 percent of original size [2022-11-03 02:10:12,556 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 37 [2022-11-03 02:10:12,569 INFO L390 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 [2022-11-03 02:10:12,804 INFO L356 Elim1Store]: treesize reduction 46, result has 37.8 percent of original size [2022-11-03 02:10:12,805 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 109 treesize of output 129 [2022-11-03 02:10:12,873 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-03 02:10:12,873 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 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 [2022-11-03 02:10:12,963 INFO L390 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 13 treesize of output 9 [2022-11-03 02:10:12,972 INFO L390 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 1 [2022-11-03 02:10:12,978 INFO L390 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 13 treesize of output 9 [2022-11-03 02:10:13,007 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-03 02:10:13,007 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 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 [2022-11-03 02:10:13,014 INFO L390 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 25 treesize of output 13 [2022-11-03 02:10:13,021 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 14 treesize of output 16 [2022-11-03 02:10:13,031 INFO L390 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 25 treesize of output 13 [2022-11-03 02:10:13,038 INFO L390 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 [2022-11-03 02:10:13,042 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:10:15,795 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '16249#(and (= (select |#valid| |ULTIMATE.start_main_~#iter~0#1.base|) 1) (<= 0 |#NULL.base|) (= |ULTIMATE.start_main_#t~mem13#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#iter~0#1.base|) |ULTIMATE.start_main_~#iter~0#1.offset|)) (<= |ULTIMATE.start_main_~#iter~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#iter~0#1.base|) (<= (+ |ULTIMATE.start_main_~#iter~0#1.offset| 4) (select |#length| |ULTIMATE.start_main_~#iter~0#1.base|)) (<= |#NULL.offset| 0) (= |ULTIMATE.start_main_#t~mem13#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#iter~0#1.base|) |ULTIMATE.start_main_~#iter~0#1.offset|)) (<= 0 |ULTIMATE.start_main_~#iter~0#1.offset|) (<= 0 |ULTIMATE.start_main_~list~0#1.offset|) (not (= 1 (select |#valid| |ULTIMATE.start_main_#t~mem13#1.base|))) (<= 0 |ULTIMATE.start_main_~data~0#1.offset|) (<= |#NULL.base| 0) (<= |ULTIMATE.start_main_~list~0#1.offset| 0) (<= 0 |#NULL.offset|) (<= |ULTIMATE.start_main_~data~0#1.offset| 0) (<= 0 |#StackHeapBarrier|) (<= 0 (+ |ULTIMATE.start_main_~current~0#1.offset| 4)))' at error location [2022-11-03 02:10:15,795 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:10:15,795 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:10:15,795 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8, 9] total 19 [2022-11-03 02:10:15,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98917653] [2022-11-03 02:10:15,795 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 02:10:15,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-03 02:10:15,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:10:15,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-03 02:10:15,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=1411, Unknown=1, NotChecked=76, Total=1640 [2022-11-03 02:10:15,797 INFO L87 Difference]: Start difference. First operand 207 states and 236 transitions. Second operand has 20 states, 20 states have (on average 2.85) internal successors, (57), 19 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:10:16,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:10:16,463 INFO L93 Difference]: Finished difference Result 229 states and 259 transitions. [2022-11-03 02:10:16,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-03 02:10:16,464 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.85) internal successors, (57), 19 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-11-03 02:10:16,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:10:16,465 INFO L225 Difference]: With dead ends: 229 [2022-11-03 02:10:16,465 INFO L226 Difference]: Without dead ends: 229 [2022-11-03 02:10:16,466 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 51 SyntacticMatches, 3 SemanticMatches, 42 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 541 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=179, Invalid=1630, Unknown=1, NotChecked=82, Total=1892 [2022-11-03 02:10:16,467 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 22 mSDsluCounter, 1571 mSDsCounter, 0 mSdLazyCounter, 634 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 1605 SdHoareTripleChecker+Invalid, 1025 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 384 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:10:16,467 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 1605 Invalid, 1025 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 634 Invalid, 0 Unknown, 384 Unchecked, 0.5s Time] [2022-11-03 02:10:16,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2022-11-03 02:10:16,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 229. [2022-11-03 02:10:16,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 158 states have (on average 1.639240506329114) internal successors, (259), 228 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:10:16,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 259 transitions. [2022-11-03 02:10:16,472 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 259 transitions. Word has length 27 [2022-11-03 02:10:16,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:10:16,473 INFO L495 AbstractCegarLoop]: Abstraction has 229 states and 259 transitions. [2022-11-03 02:10:16,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.85) internal successors, (57), 19 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:10:16,473 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 259 transitions. [2022-11-03 02:10:16,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-03 02:10:16,473 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:10:16,474 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:10:16,513 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aea6a77-ef62-4879-93a9-693cb42b8bdd/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-03 02:10:16,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aea6a77-ef62-4879-93a9-693cb42b8bdd/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-11-03 02:10:16,697 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr38REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] === [2022-11-03 02:10:16,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:10:16,698 INFO L85 PathProgramCache]: Analyzing trace with hash 688966908, now seen corresponding path program 1 times [2022-11-03 02:10:16,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:10:16,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433374920] [2022-11-03 02:10:16,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:10:16,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:10:16,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:10:16,860 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-03 02:10:16,860 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:10:16,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433374920] [2022-11-03 02:10:16,861 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433374920] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:10:16,861 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:10:16,861 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:10:16,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289401103] [2022-11-03 02:10:16,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:10:16,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:10:16,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:10:16,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:10:16,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:10:16,863 INFO L87 Difference]: Start difference. First operand 229 states and 259 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 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) [2022-11-03 02:10:17,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:10:17,097 INFO L93 Difference]: Finished difference Result 234 states and 264 transitions. [2022-11-03 02:10:17,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:10:17,098 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 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 31 [2022-11-03 02:10:17,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:10:17,101 INFO L225 Difference]: With dead ends: 234 [2022-11-03 02:10:17,101 INFO L226 Difference]: Without dead ends: 234 [2022-11-03 02:10:17,102 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:10:17,108 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 1 mSDsluCounter, 480 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 604 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:10:17,109 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 604 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 02:10:17,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2022-11-03 02:10:17,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 233. [2022-11-03 02:10:17,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 162 states have (on average 1.623456790123457) internal successors, (263), 232 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:10:17,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 263 transitions. [2022-11-03 02:10:17,115 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 263 transitions. Word has length 31 [2022-11-03 02:10:17,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:10:17,116 INFO L495 AbstractCegarLoop]: Abstraction has 233 states and 263 transitions. [2022-11-03 02:10:17,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 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) [2022-11-03 02:10:17,116 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 263 transitions. [2022-11-03 02:10:17,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-03 02:10:17,116 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:10:17,117 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:10:17,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-03 02:10:17,117 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] === [2022-11-03 02:10:17,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:10:17,118 INFO L85 PathProgramCache]: Analyzing trace with hash 373171140, now seen corresponding path program 2 times [2022-11-03 02:10:17,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:10:17,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467086013] [2022-11-03 02:10:17,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:10:17,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:10:17,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:10:18,604 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:10:18,604 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:10:18,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467086013] [2022-11-03 02:10:18,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467086013] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:10:18,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1015196737] [2022-11-03 02:10:18,605 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-03 02:10:18,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:10:18,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aea6a77-ef62-4879-93a9-693cb42b8bdd/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:10:18,606 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aea6a77-ef62-4879-93a9-693cb42b8bdd/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:10:18,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aea6a77-ef62-4879-93a9-693cb42b8bdd/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-03 02:10:18,892 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-03 02:10:18,892 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 02:10:18,896 INFO L263 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 72 conjunts are in the unsatisfiable core [2022-11-03 02:10:18,901 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:10:18,905 INFO L390 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 [2022-11-03 02:10:18,926 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-03 02:10:18,926 INFO L390 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 [2022-11-03 02:10:18,955 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-03 02:10:18,955 INFO L390 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 22 [2022-11-03 02:10:19,016 INFO L390 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 [2022-11-03 02:10:19,082 INFO L390 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 28 treesize of output 27 [2022-11-03 02:10:19,182 INFO L356 Elim1Store]: treesize reduction 19, result has 47.2 percent of original size [2022-11-03 02:10:19,183 INFO L390 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 35 treesize of output 45 [2022-11-03 02:10:19,256 INFO L390 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 [2022-11-03 02:10:19,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:19,266 INFO L390 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 0 case distinctions, treesize of input 40 treesize of output 34 [2022-11-03 02:10:19,454 INFO L390 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 53 treesize of output 44 [2022-11-03 02:10:19,464 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:10:19,498 INFO L356 Elim1Store]: treesize reduction 139, result has 13.7 percent of original size [2022-11-03 02:10:19,499 INFO L390 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 5 new quantified variables, introduced 9 case distinctions, treesize of input 77 treesize of output 60 [2022-11-03 02:10:19,842 INFO L390 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 49 treesize of output 40 [2022-11-03 02:10:19,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:19,880 INFO L356 Elim1Store]: treesize reduction 122, result has 13.5 percent of original size [2022-11-03 02:10:19,881 INFO L390 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 5 new quantified variables, introduced 7 case distinctions, treesize of input 77 treesize of output 61 [2022-11-03 02:10:19,991 INFO L390 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 39 treesize of output 23 [2022-11-03 02:10:20,191 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:10:20,221 INFO L356 Elim1Store]: treesize reduction 125, result has 12.6 percent of original size [2022-11-03 02:10:20,221 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 66 treesize of output 48 [2022-11-03 02:10:20,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:20,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:20,363 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 17 [2022-11-03 02:10:20,450 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:10:20,450 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:10:23,712 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:10:23,729 INFO L390 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 992 treesize of output 972 [2022-11-03 02:10:42,869 WARN L234 SmtUtils]: Spent 13.87s on a formula simplification. DAG size of input: 120 DAG size of output: 47 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:10:42,929 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:10:42,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1015196737] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:10:42,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [898012273] [2022-11-03 02:10:42,932 INFO L159 IcfgInterpreter]: Started Sifa with 26 locations of interest [2022-11-03 02:10:42,932 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:10:42,933 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:10:42,933 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:10:42,933 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:10:42,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:42,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:42,960 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-03 02:10:42,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:42,978 INFO L390 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 34 treesize of output 21 [2022-11-03 02:10:42,987 INFO L390 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 13 treesize of output 9 [2022-11-03 02:10:42,994 INFO L390 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 13 treesize of output 9 [2022-11-03 02:10:43,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:43,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:43,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:43,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:43,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:43,020 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2022-11-03 02:10:43,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:43,030 INFO L390 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 25 treesize of output 13 [2022-11-03 02:10:43,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:43,038 INFO L390 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 25 treesize of output 13 [2022-11-03 02:10:43,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:43,049 INFO L390 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 26 treesize of output 28 [2022-11-03 02:10:43,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:43,072 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 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 [2022-11-03 02:10:43,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:43,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:43,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:43,088 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 36 [2022-11-03 02:10:43,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:43,101 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 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 [2022-11-03 02:10:43,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:43,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:43,127 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-11-03 02:10:43,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:43,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:43,143 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-11-03 02:10:43,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:43,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:43,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:43,159 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 36 [2022-11-03 02:10:43,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:43,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:43,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:43,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:43,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:43,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:43,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:43,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:43,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:43,213 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 47 [2022-11-03 02:10:43,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:43,247 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:10:43,248 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:10:43,278 INFO L356 Elim1Store]: treesize reduction 42, result has 28.8 percent of original size [2022-11-03 02:10:43,279 INFO L390 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 4 new quantified variables, introduced 4 case distinctions, treesize of input 145 treesize of output 113 [2022-11-03 02:10:43,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:43,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:43,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:43,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:43,300 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 41 treesize of output 46 [2022-11-03 02:10:43,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:43,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:43,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:43,321 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 40 [2022-11-03 02:10:43,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:43,377 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:10:43,398 INFO L356 Elim1Store]: treesize reduction 45, result has 13.5 percent of original size [2022-11-03 02:10:43,399 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 175 treesize of output 131 [2022-11-03 02:10:43,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:43,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:43,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:43,423 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 47 [2022-11-03 02:10:43,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:43,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:43,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:43,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:43,445 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 47 [2022-11-03 02:10:43,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:43,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:43,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:43,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:43,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:43,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:43,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:43,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:43,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:43,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:43,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:43,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:43,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:43,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:43,483 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 19 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 55 [2022-11-03 02:10:43,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:43,531 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:10:43,566 INFO L356 Elim1Store]: treesize reduction 41, result has 14.6 percent of original size [2022-11-03 02:10:43,566 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 171 treesize of output 138 [2022-11-03 02:10:43,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:43,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:43,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:43,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:43,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:43,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:43,594 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 54 [2022-11-03 02:10:43,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:43,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:43,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:43,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:43,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:43,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:43,623 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 55 [2022-11-03 02:10:43,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:43,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:43,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:43,721 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:10:43,730 INFO L356 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2022-11-03 02:10:43,731 INFO L390 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 5 case distinctions, treesize of input 482 treesize of output 447 [2022-11-03 02:10:43,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:43,777 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:10:43,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:43,779 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:10:43,780 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:10:43,841 INFO L356 Elim1Store]: treesize reduction 78, result has 26.4 percent of original size [2022-11-03 02:10:43,842 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 13 case distinctions, treesize of input 476 treesize of output 440 [2022-11-03 02:10:43,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:43,865 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:10:43,866 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:10:43,867 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:10:43,938 INFO L356 Elim1Store]: treesize reduction 154, result has 26.0 percent of original size [2022-11-03 02:10:43,938 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 12 case distinctions, treesize of input 600 treesize of output 615 [2022-11-03 02:10:44,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:44,475 INFO L356 Elim1Store]: treesize reduction 296, result has 15.9 percent of original size [2022-11-03 02:10:44,476 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 19 case distinctions, treesize of input 1232 treesize of output 1217 [2022-11-03 02:10:45,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:45,298 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:10:45,299 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:10:45,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:45,301 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:10:45,409 INFO L356 Elim1Store]: treesize reduction 118, result has 22.9 percent of original size [2022-11-03 02:10:45,409 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 18 case distinctions, treesize of input 2874 treesize of output 1721 [2022-11-03 02:10:45,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:45,473 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:10:45,474 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:10:45,475 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:10:45,575 INFO L356 Elim1Store]: treesize reduction 234, result has 21.7 percent of original size [2022-11-03 02:10:45,576 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 17 case distinctions, treesize of input 2864 treesize of output 2680 [2022-11-03 02:10:45,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:45,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:45,661 INFO L356 Elim1Store]: treesize reduction 52, result has 1.9 percent of original size [2022-11-03 02:10:45,662 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 2824 treesize of output 2543 [2022-11-03 02:10:46,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:46,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:46,953 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:10:46,954 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:10:46,955 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:10:47,022 INFO L356 Elim1Store]: treesize reduction 128, result has 10.5 percent of original size [2022-11-03 02:10:47,023 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 2 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 22 case distinctions, treesize of input 5419 treesize of output 3184 [2022-11-03 02:10:47,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:47,321 INFO L356 Elim1Store]: treesize reduction 410, result has 13.7 percent of original size [2022-11-03 02:10:47,322 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 26 case distinctions, treesize of input 5420 treesize of output 5190 [2022-11-03 02:10:47,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:47,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:47,452 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:10:47,454 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:10:47,454 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:10:47,524 INFO L356 Elim1Store]: treesize reduction 232, result has 8.3 percent of original size [2022-11-03 02:10:47,524 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 2 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 5389 treesize of output 4977 [2022-11-03 02:10:47,708 INFO L356 Elim1Store]: treesize reduction 128, result has 28.1 percent of original size [2022-11-03 02:10:47,709 INFO L390 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 5358 treesize of output 4826 [2022-11-03 02:10:52,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:52,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:52,009 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:10:52,010 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:10:52,011 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:10:52,084 INFO L356 Elim1Store]: treesize reduction 120, result has 11.1 percent of original size [2022-11-03 02:10:52,085 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 22 case distinctions, treesize of input 16033 treesize of output 9369 [2022-11-03 02:10:52,371 INFO L356 Elim1Store]: treesize reduction 198, result has 22.4 percent of original size [2022-11-03 02:10:52,372 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 13 case distinctions, treesize of input 16044 treesize of output 14708 [2022-11-03 02:10:52,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:52,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:52,552 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:10:52,553 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:10:52,554 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:10:52,622 INFO L356 Elim1Store]: treesize reduction 224, result has 8.6 percent of original size [2022-11-03 02:10:52,623 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 15659 treesize of output 14420 [2022-11-03 02:10:55,759 INFO L390 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 13 treesize of output 9 [2022-11-03 02:10:55,764 INFO L390 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 1 [2022-11-03 02:10:55,769 INFO L390 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 13 treesize of output 9 [2022-11-03 02:10:55,795 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-03 02:10:55,796 INFO L390 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 1 case distinctions, treesize of input 14 treesize of output 20 [2022-11-03 02:10:55,820 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-03 02:10:55,820 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 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 [2022-11-03 02:10:55,833 INFO L390 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 13 treesize of output 9 [2022-11-03 02:10:55,840 INFO L390 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 19 treesize of output 1 [2022-11-03 02:10:55,846 INFO L390 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 [2022-11-03 02:10:55,866 INFO L390 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 [2022-11-03 02:10:55,898 INFO L356 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-03 02:10:55,899 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-03 02:10:55,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:55,911 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 23 [2022-11-03 02:10:55,919 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 27 [2022-11-03 02:10:55,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:55,932 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2022-11-03 02:10:55,949 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 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 [2022-11-03 02:10:55,961 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-03 02:10:55,971 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 16 [2022-11-03 02:10:55,985 INFO L390 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 13 treesize of output 9 [2022-11-03 02:10:55,992 INFO L390 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 13 treesize of output 9 [2022-11-03 02:10:55,998 INFO L390 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 1 [2022-11-03 02:10:56,042 INFO L390 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 [2022-11-03 02:10:56,051 INFO L390 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 [2022-11-03 02:10:56,068 INFO L390 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 [2022-11-03 02:10:56,078 INFO L390 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 [2022-11-03 02:10:56,084 INFO L390 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 [2022-11-03 02:10:56,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:56,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:56,131 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:10:56,134 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 02:10:56,135 INFO L390 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 1 case distinctions, treesize of input 25 treesize of output 27 [2022-11-03 02:10:56,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:56,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:56,152 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:10:56,156 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 02:10:56,157 INFO L390 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 1 case distinctions, treesize of input 25 treesize of output 27 [2022-11-03 02:10:56,170 INFO L390 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 [2022-11-03 02:10:56,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:56,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:56,251 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:10:56,291 INFO L356 Elim1Store]: treesize reduction 62, result has 26.2 percent of original size [2022-11-03 02:10:56,291 INFO L390 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 6 case distinctions, treesize of input 69 treesize of output 70 [2022-11-03 02:10:56,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:56,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:10:56,317 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:10:56,350 INFO L356 Elim1Store]: treesize reduction 62, result has 26.2 percent of original size [2022-11-03 02:10:56,351 INFO L390 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 6 case distinctions, treesize of input 69 treesize of output 70 [2022-11-03 02:10:56,371 INFO L390 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 [2022-11-03 02:10:56,453 INFO L356 Elim1Store]: treesize reduction 30, result has 44.4 percent of original size [2022-11-03 02:10:56,453 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 37 [2022-11-03 02:10:56,464 INFO L390 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 [2022-11-03 02:10:56,500 INFO L356 Elim1Store]: treesize reduction 30, result has 44.4 percent of original size [2022-11-03 02:10:56,500 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 37 [2022-11-03 02:10:56,761 INFO L356 Elim1Store]: treesize reduction 46, result has 37.8 percent of original size [2022-11-03 02:10:56,761 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 109 treesize of output 129 [2022-11-03 02:10:56,827 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-03 02:10:56,827 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 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 [2022-11-03 02:10:56,906 INFO L390 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 13 treesize of output 9 [2022-11-03 02:10:56,915 INFO L390 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 1 [2022-11-03 02:10:56,921 INFO L390 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 13 treesize of output 9 [2022-11-03 02:10:56,950 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-03 02:10:56,950 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 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 [2022-11-03 02:10:56,957 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 14 treesize of output 16 [2022-11-03 02:10:56,966 INFO L390 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 [2022-11-03 02:10:56,976 INFO L390 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 25 treesize of output 13 [2022-11-03 02:10:56,984 INFO L390 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 25 treesize of output 13 [2022-11-03 02:10:56,986 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:11:02,343 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '17446#(and (= (select |#valid| |ULTIMATE.start_main_~#iter~0#1.base|) 1) (or (exists ((|v_ULTIMATE.start_main_#t~mem11#1.base_15| Int)) (and (= (select |#valid| |v_ULTIMATE.start_main_#t~mem11#1.base_15|) 1) (not (= |ULTIMATE.start_main_~#iter~0#1.base| |v_ULTIMATE.start_main_#t~mem11#1.base_15|)) (exists ((|v_ULTIMATE.start_main_#t~mem11#1.offset_14| Int)) (and (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#iter~0#1.base|) |ULTIMATE.start_main_~#iter~0#1.offset|) (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_main_#t~mem11#1.base_15|) (+ |v_ULTIMATE.start_main_#t~mem11#1.offset_14| 4))) (<= 0 (+ |v_ULTIMATE.start_main_#t~mem11#1.offset_14| 4)) (<= (+ 8 |v_ULTIMATE.start_main_#t~mem11#1.offset_14|) (select |#length| |v_ULTIMATE.start_main_#t~mem11#1.base_15|)) (= (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_main_#t~mem11#1.base_15|) (+ |v_ULTIMATE.start_main_#t~mem11#1.offset_14| 4)) (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#iter~0#1.base|) |ULTIMATE.start_main_~#iter~0#1.offset|)))))) (exists ((|v_ULTIMATE.start_main_#t~mem11#1.base_15| Int)) (and (= (select |#valid| |v_ULTIMATE.start_main_#t~mem11#1.base_15|) 1) (exists ((|v_ULTIMATE.start_main_#t~mem11#1.offset_14| Int)) (and (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#iter~0#1.base|) |ULTIMATE.start_main_~#iter~0#1.offset|) (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_main_#t~mem11#1.base_15|) (+ |v_ULTIMATE.start_main_#t~mem11#1.offset_14| 4))) (<= 0 (+ |v_ULTIMATE.start_main_#t~mem11#1.offset_14| 4)) (<= (+ 8 |v_ULTIMATE.start_main_#t~mem11#1.offset_14|) (select |#length| |v_ULTIMATE.start_main_#t~mem11#1.base_15|)) (= (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_main_#t~mem11#1.base_15|) (+ |v_ULTIMATE.start_main_#t~mem11#1.offset_14| 4)) (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#iter~0#1.base|) |ULTIMATE.start_main_~#iter~0#1.offset|)) (not (= |ULTIMATE.start_main_~#iter~0#1.offset| (+ |v_ULTIMATE.start_main_#t~mem11#1.offset_14| 4)))))))) (<= 0 |#NULL.base|) (= |ULTIMATE.start_main_#t~mem13#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#iter~0#1.base|) |ULTIMATE.start_main_~#iter~0#1.offset|)) (<= |ULTIMATE.start_main_~#iter~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#iter~0#1.base|) (<= (+ |ULTIMATE.start_main_~#iter~0#1.offset| 4) (select |#length| |ULTIMATE.start_main_~#iter~0#1.base|)) (<= |#NULL.offset| 0) (= |ULTIMATE.start_main_#t~mem13#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#iter~0#1.base|) |ULTIMATE.start_main_~#iter~0#1.offset|)) (<= 0 |ULTIMATE.start_main_~#iter~0#1.offset|) (<= 0 |ULTIMATE.start_main_~list~0#1.offset|) (not (= 1 (select |#valid| |ULTIMATE.start_main_#t~mem13#1.base|))) (<= 0 |ULTIMATE.start_main_~data~0#1.offset|) (<= |#NULL.base| 0) (or (not (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#iter~0#1.base|) |ULTIMATE.start_main_~#iter~0#1.offset|) 0)) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#iter~0#1.base|) |ULTIMATE.start_main_~#iter~0#1.offset|) 0))) (<= |ULTIMATE.start_main_~list~0#1.offset| 0) (<= 0 |#NULL.offset|) (<= |ULTIMATE.start_main_~data~0#1.offset| 0) (<= 0 |#StackHeapBarrier|) (<= 0 (+ |ULTIMATE.start_main_~current~0#1.offset| 4)))' at error location [2022-11-03 02:11:02,343 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:11:02,343 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:11:02,343 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18, 18] total 44 [2022-11-03 02:11:02,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456858835] [2022-11-03 02:11:02,344 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 02:11:02,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2022-11-03 02:11:02,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:11:02,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2022-11-03 02:11:02,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=288, Invalid=4133, Unknown=1, NotChecked=0, Total=4422 [2022-11-03 02:11:02,348 INFO L87 Difference]: Start difference. First operand 233 states and 263 transitions. Second operand has 45 states, 44 states have (on average 1.7954545454545454) internal successors, (79), 45 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:11:06,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:11:06,446 INFO L93 Difference]: Finished difference Result 415 states and 464 transitions. [2022-11-03 02:11:06,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-03 02:11:06,447 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 44 states have (on average 1.7954545454545454) internal successors, (79), 45 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-03 02:11:06,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:11:06,448 INFO L225 Difference]: With dead ends: 415 [2022-11-03 02:11:06,448 INFO L226 Difference]: Without dead ends: 415 [2022-11-03 02:11:06,450 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 51 SyntacticMatches, 9 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1881 ImplicationChecksByTransitivity, 25.7s TimeCoverageRelationStatistics Valid=638, Invalid=6003, Unknown=1, NotChecked=0, Total=6642 [2022-11-03 02:11:06,451 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 379 mSDsluCounter, 3391 mSDsCounter, 0 mSdLazyCounter, 2889 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 379 SdHoareTripleChecker+Valid, 3405 SdHoareTripleChecker+Invalid, 4506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 2889 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1570 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:11:06,451 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [379 Valid, 3405 Invalid, 4506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 2889 Invalid, 0 Unknown, 1570 Unchecked, 2.2s Time] [2022-11-03 02:11:06,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2022-11-03 02:11:06,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 232. [2022-11-03 02:11:06,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 162 states have (on average 1.617283950617284) internal successors, (262), 231 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:11:06,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 262 transitions. [2022-11-03 02:11:06,457 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 262 transitions. Word has length 33 [2022-11-03 02:11:06,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:11:06,457 INFO L495 AbstractCegarLoop]: Abstraction has 232 states and 262 transitions. [2022-11-03 02:11:06,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 44 states have (on average 1.7954545454545454) internal successors, (79), 45 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:11:06,458 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 262 transitions. [2022-11-03 02:11:06,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-03 02:11:06,458 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:11:06,458 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:11:06,488 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aea6a77-ef62-4879-93a9-693cb42b8bdd/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-03 02:11:06,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aea6a77-ef62-4879-93a9-693cb42b8bdd/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:11:06,677 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr31REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] === [2022-11-03 02:11:06,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:11:06,678 INFO L85 PathProgramCache]: Analyzing trace with hash 373171141, now seen corresponding path program 1 times [2022-11-03 02:11:06,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:11:06,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393107316] [2022-11-03 02:11:06,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:11:06,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:11:06,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:11:08,495 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:11:08,495 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:11:08,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393107316] [2022-11-03 02:11:08,496 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393107316] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:11:08,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1063911357] [2022-11-03 02:11:08,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:11:08,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:11:08,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aea6a77-ef62-4879-93a9-693cb42b8bdd/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:11:08,497 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aea6a77-ef62-4879-93a9-693cb42b8bdd/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:11:08,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aea6a77-ef62-4879-93a9-693cb42b8bdd/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-03 02:11:08,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:11:08,696 INFO L263 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 82 conjunts are in the unsatisfiable core [2022-11-03 02:11:08,701 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:11:08,705 INFO L390 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 [2022-11-03 02:11:08,833 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-03 02:11:08,833 INFO L390 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 [2022-11-03 02:11:08,839 INFO L390 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 14 treesize of output 16 [2022-11-03 02:11:08,872 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-03 02:11:08,872 INFO L390 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 14 treesize of output 20 [2022-11-03 02:11:08,894 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-03 02:11:08,894 INFO L390 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 [2022-11-03 02:11:08,974 INFO L390 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 13 treesize of output 9 [2022-11-03 02:11:08,989 INFO L390 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 13 treesize of output 9 [2022-11-03 02:11:09,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:09,083 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-03 02:11:09,083 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 14 [2022-11-03 02:11:09,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:09,096 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-03 02:11:09,147 INFO L390 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 38 treesize of output 29 [2022-11-03 02:11:09,153 INFO L390 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 23 treesize of output 22 [2022-11-03 02:11:09,264 INFO L356 Elim1Store]: treesize reduction 37, result has 15.9 percent of original size [2022-11-03 02:11:09,265 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 75 treesize of output 52 [2022-11-03 02:11:09,272 INFO L390 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 0 case distinctions, treesize of input 32 treesize of output 34 [2022-11-03 02:11:09,379 INFO L390 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 0 case distinctions, treesize of input 32 treesize of output 34 [2022-11-03 02:11:09,398 INFO L356 Elim1Store]: treesize reduction 37, result has 15.9 percent of original size [2022-11-03 02:11:09,399 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 75 treesize of output 52 [2022-11-03 02:11:09,618 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:11:09,639 INFO L356 Elim1Store]: treesize reduction 109, result has 9.2 percent of original size [2022-11-03 02:11:09,639 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 112 treesize of output 67 [2022-11-03 02:11:09,648 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 02:11:09,648 INFO L390 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 4 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 33 [2022-11-03 02:11:09,755 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 10 [2022-11-03 02:11:09,788 INFO L390 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 21 [2022-11-03 02:11:09,835 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:11:09,836 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:11:12,338 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~#iter~0#1.base|)) (.cse1 (+ |c_ULTIMATE.start_main_~list~0#1.offset| 4))) (and (forall ((|ULTIMATE.start_main_~#iter~0#1.offset| Int) (v_ArrVal_1292 Int)) (<= 0 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~#iter~0#1.base| (store (store .cse0 |ULTIMATE.start_main_~#iter~0#1.offset| |c_ULTIMATE.start_main_~list~0#1.offset|) (+ |ULTIMATE.start_main_~#iter~0#1.offset| 4) v_ArrVal_1292)) |c_ULTIMATE.start_main_~list~0#1.base|) .cse1))) (forall ((|ULTIMATE.start_main_~#iter~0#1.offset| Int) (v_ArrVal_1293 Int) (v_ArrVal_1292 Int)) (let ((.cse2 (+ |ULTIMATE.start_main_~#iter~0#1.offset| 4))) (<= (+ (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~#iter~0#1.base| (store (store .cse0 |ULTIMATE.start_main_~#iter~0#1.offset| |c_ULTIMATE.start_main_~list~0#1.offset|) .cse2 v_ArrVal_1292)) |c_ULTIMATE.start_main_~list~0#1.base|) .cse1) 4) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~#iter~0#1.base| (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~#iter~0#1.base|) |ULTIMATE.start_main_~#iter~0#1.offset| |c_ULTIMATE.start_main_~list~0#1.base|) .cse2 v_ArrVal_1293)) |c_ULTIMATE.start_main_~list~0#1.base|) .cse1))))))) is different from false [2022-11-03 02:11:16,649 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:11:16,653 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:11:20,367 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 104 treesize of output 100 [2022-11-03 02:11:20,599 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:11:20,600 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1063911357] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:11:20,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1722858636] [2022-11-03 02:11:20,606 INFO L159 IcfgInterpreter]: Started Sifa with 26 locations of interest [2022-11-03 02:11:20,606 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:11:20,606 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:11:20,607 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:11:20,607 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:11:20,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:20,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:20,646 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-03 02:11:20,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:20,662 INFO L390 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 34 treesize of output 21 [2022-11-03 02:11:20,670 INFO L390 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 13 treesize of output 9 [2022-11-03 02:11:20,676 INFO L390 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 13 treesize of output 9 [2022-11-03 02:11:20,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:20,699 INFO L390 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 25 treesize of output 13 [2022-11-03 02:11:20,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:20,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:20,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:20,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:20,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:20,715 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2022-11-03 02:11:20,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:20,729 INFO L390 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 26 treesize of output 28 [2022-11-03 02:11:20,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:20,742 INFO L390 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 25 treesize of output 13 [2022-11-03 02:11:20,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:20,762 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 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 [2022-11-03 02:11:20,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:20,775 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 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 [2022-11-03 02:11:20,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:20,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:20,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:20,789 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 36 [2022-11-03 02:11:20,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:20,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:20,815 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-11-03 02:11:20,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:20,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:20,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:20,831 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 36 [2022-11-03 02:11:20,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:20,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:20,846 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-11-03 02:11:20,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:20,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:20,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:20,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:20,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:20,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:20,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:20,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:20,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:20,887 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 56 [2022-11-03 02:11:20,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:20,922 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:11:20,922 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:11:20,949 INFO L356 Elim1Store]: treesize reduction 48, result has 32.4 percent of original size [2022-11-03 02:11:20,950 INFO L390 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 4 new quantified variables, introduced 4 case distinctions, treesize of input 165 treesize of output 133 [2022-11-03 02:11:20,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:20,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:20,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:20,970 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 44 [2022-11-03 02:11:20,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:20,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:20,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:20,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:20,986 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 88 [2022-11-03 02:11:21,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:21,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:21,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:21,042 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:11:21,042 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:11:21,062 INFO L356 Elim1Store]: treesize reduction 45, result has 13.5 percent of original size [2022-11-03 02:11:21,062 INFO L390 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 5 new quantified variables, introduced 6 case distinctions, treesize of input 197 treesize of output 153 [2022-11-03 02:11:21,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:21,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:21,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:21,092 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-11-03 02:11:21,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:21,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:21,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:21,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:21,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:21,116 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 107 treesize of output 91 [2022-11-03 02:11:21,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:21,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:21,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:21,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:21,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:21,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:21,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:21,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:21,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:21,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:21,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:21,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:21,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:21,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:21,159 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 19 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 55 [2022-11-03 02:11:21,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:21,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:21,208 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:11:21,209 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:11:21,228 INFO L356 Elim1Store]: treesize reduction 41, result has 14.6 percent of original size [2022-11-03 02:11:21,228 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 173 treesize of output 140 [2022-11-03 02:11:21,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:21,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:21,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:21,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:21,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:21,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:21,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:21,260 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 56 [2022-11-03 02:11:21,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:21,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:21,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:21,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:21,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:21,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:21,288 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 55 [2022-11-03 02:11:21,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:21,364 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:11:21,364 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:11:21,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:21,366 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:11:21,367 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:11:21,439 INFO L356 Elim1Store]: treesize reduction 80, result has 27.3 percent of original size [2022-11-03 02:11:21,439 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 13 case distinctions, treesize of input 494 treesize of output 458 [2022-11-03 02:11:21,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:21,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:21,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:21,476 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:11:21,485 INFO L356 Elim1Store]: treesize reduction 44, result has 2.2 percent of original size [2022-11-03 02:11:21,485 INFO L390 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 5 case distinctions, treesize of input 624 treesize of output 583 [2022-11-03 02:11:21,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:21,506 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:11:21,506 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:11:21,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:21,508 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:11:21,509 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:11:21,558 INFO L356 Elim1Store]: treesize reduction 156, result has 26.4 percent of original size [2022-11-03 02:11:21,559 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 12 case distinctions, treesize of input 618 treesize of output 633 [2022-11-03 02:11:21,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:21,935 INFO L356 Elim1Store]: treesize reduction 338, result has 16.7 percent of original size [2022-11-03 02:11:21,935 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 19 case distinctions, treesize of input 774 treesize of output 797 [2022-11-03 02:11:22,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:22,280 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:11:22,281 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:11:22,281 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:11:22,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:22,285 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:11:22,383 INFO L356 Elim1Store]: treesize reduction 126, result has 25.4 percent of original size [2022-11-03 02:11:22,384 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 18 case distinctions, treesize of input 1737 treesize of output 956 [2022-11-03 02:11:22,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:22,431 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:11:22,433 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:11:22,552 INFO L356 Elim1Store]: treesize reduction 346, result has 14.4 percent of original size [2022-11-03 02:11:22,553 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 19 case distinctions, treesize of input 1758 treesize of output 1467 [2022-11-03 02:11:22,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:22,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:22,604 INFO L356 Elim1Store]: treesize reduction 64, result has 1.5 percent of original size [2022-11-03 02:11:22,605 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 1663 treesize of output 1516 [2022-11-03 02:11:23,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:23,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:23,614 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:11:23,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:23,617 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:11:23,617 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:11:23,618 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:11:23,619 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:11:23,755 INFO L356 Elim1Store]: treesize reduction 134, result has 13.5 percent of original size [2022-11-03 02:11:23,756 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 2 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 22 case distinctions, treesize of input 5705 treesize of output 2872 [2022-11-03 02:11:23,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:23,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:23,824 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:11:23,825 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:11:23,826 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:11:23,962 INFO L356 Elim1Store]: treesize reduction 376, result has 8.3 percent of original size [2022-11-03 02:11:23,963 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 2 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 23 case distinctions, treesize of input 5723 treesize of output 4570 [2022-11-03 02:11:24,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:24,404 INFO L356 Elim1Store]: treesize reduction 458, result has 14.4 percent of original size [2022-11-03 02:11:24,405 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 26 case distinctions, treesize of input 5706 treesize of output 5500 [2022-11-03 02:11:24,601 INFO L356 Elim1Store]: treesize reduction 152, result has 29.0 percent of original size [2022-11-03 02:11:24,601 INFO L390 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 5620 treesize of output 5076 [2022-11-03 02:11:28,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:28,680 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:11:28,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:28,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:28,684 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:11:28,684 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:11:28,685 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:11:28,685 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:11:28,818 INFO L356 Elim1Store]: treesize reduction 126, result has 14.3 percent of original size [2022-11-03 02:11:28,819 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 22 case distinctions, treesize of input 18041 treesize of output 8955 [2022-11-03 02:11:29,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:29,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:29,027 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:11:29,027 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:11:29,028 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:11:29,176 INFO L356 Elim1Store]: treesize reduction 364, result has 8.5 percent of original size [2022-11-03 02:11:29,177 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 23 case distinctions, treesize of input 18059 treesize of output 14395 [2022-11-03 02:11:29,587 INFO L356 Elim1Store]: treesize reduction 228, result has 23.2 percent of original size [2022-11-03 02:11:29,588 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 13 case distinctions, treesize of input 18052 treesize of output 16744 [2022-11-03 02:11:32,761 INFO L390 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 13 treesize of output 9 [2022-11-03 02:11:32,766 INFO L390 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 1 [2022-11-03 02:11:32,771 INFO L390 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 13 treesize of output 9 [2022-11-03 02:11:32,794 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-03 02:11:32,794 INFO L390 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 1 case distinctions, treesize of input 14 treesize of output 20 [2022-11-03 02:11:32,821 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-03 02:11:32,822 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 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 [2022-11-03 02:11:32,837 INFO L390 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 13 treesize of output 9 [2022-11-03 02:11:32,845 INFO L390 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 [2022-11-03 02:11:32,853 INFO L390 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 19 treesize of output 1 [2022-11-03 02:11:32,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:32,870 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2022-11-03 02:11:32,902 INFO L356 Elim1Store]: treesize reduction 24, result has 38.5 percent of original size [2022-11-03 02:11:32,902 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 26 treesize of output 33 [2022-11-03 02:11:32,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:32,913 INFO L390 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 34 treesize of output 25 [2022-11-03 02:11:32,922 INFO L390 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 [2022-11-03 02:11:32,957 INFO L356 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-03 02:11:32,958 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-03 02:11:32,973 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 16 [2022-11-03 02:11:32,982 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-11-03 02:11:32,991 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 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 [2022-11-03 02:11:33,003 INFO L390 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 13 treesize of output 9 [2022-11-03 02:11:33,008 INFO L390 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 1 [2022-11-03 02:11:33,013 INFO L390 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 13 treesize of output 9 [2022-11-03 02:11:33,054 INFO L390 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 [2022-11-03 02:11:33,059 INFO L390 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 [2022-11-03 02:11:33,071 INFO L390 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 [2022-11-03 02:11:33,076 INFO L390 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 [2022-11-03 02:11:33,084 INFO L390 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 [2022-11-03 02:11:33,112 INFO L390 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 [2022-11-03 02:11:33,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:33,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:33,125 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:11:33,129 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 02:11:33,129 INFO L390 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 1 case distinctions, treesize of input 25 treesize of output 27 [2022-11-03 02:11:33,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:33,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:33,140 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:11:33,144 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 02:11:33,144 INFO L390 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 1 case distinctions, treesize of input 25 treesize of output 27 [2022-11-03 02:11:33,197 INFO L390 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 [2022-11-03 02:11:33,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:33,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:33,219 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:11:33,247 INFO L356 Elim1Store]: treesize reduction 62, result has 26.2 percent of original size [2022-11-03 02:11:33,248 INFO L390 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 6 case distinctions, treesize of input 69 treesize of output 70 [2022-11-03 02:11:33,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:33,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:33,266 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:11:33,294 INFO L356 Elim1Store]: treesize reduction 62, result has 26.2 percent of original size [2022-11-03 02:11:33,295 INFO L390 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 6 case distinctions, treesize of input 65 treesize of output 66 [2022-11-03 02:11:33,380 INFO L356 Elim1Store]: treesize reduction 30, result has 44.4 percent of original size [2022-11-03 02:11:33,380 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 37 [2022-11-03 02:11:33,392 INFO L390 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 [2022-11-03 02:11:33,429 INFO L356 Elim1Store]: treesize reduction 30, result has 44.4 percent of original size [2022-11-03 02:11:33,429 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 37 [2022-11-03 02:11:33,628 INFO L356 Elim1Store]: treesize reduction 46, result has 37.8 percent of original size [2022-11-03 02:11:33,628 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 109 treesize of output 129 [2022-11-03 02:11:33,748 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-03 02:11:33,749 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 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 [2022-11-03 02:11:33,783 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-03 02:11:33,783 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 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 [2022-11-03 02:11:33,865 INFO L390 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 13 treesize of output 9 [2022-11-03 02:11:33,870 INFO L390 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 13 treesize of output 9 [2022-11-03 02:11:33,875 INFO L390 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 1 [2022-11-03 02:11:33,895 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-03 02:11:33,895 INFO L390 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 1 case distinctions, treesize of input 14 treesize of output 20 [2022-11-03 02:11:33,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:33,903 INFO L390 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 13 [2022-11-03 02:11:33,921 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-03 02:11:33,921 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 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 [2022-11-03 02:11:33,928 INFO L390 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 [2022-11-03 02:11:33,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:33,936 INFO L390 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 25 treesize of output 13 [2022-11-03 02:11:33,939 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:11:38,948 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '18385#(and (= (select |#valid| |ULTIMATE.start_main_~#iter~0#1.base|) 1) (<= 0 |#NULL.base|) (= |ULTIMATE.start_main_#t~mem13#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#iter~0#1.base|) |ULTIMATE.start_main_~#iter~0#1.offset|)) (or (not (<= 0 |ULTIMATE.start_main_#t~mem13#1.offset|)) (not (<= (+ |ULTIMATE.start_main_#t~mem13#1.offset| 4) (select |#length| |ULTIMATE.start_main_#t~mem13#1.base|)))) (or (and (<= 0 (+ (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#iter~0#1.base|) |ULTIMATE.start_main_~#iter~0#1.offset|) 4)) (exists ((|v_ULTIMATE.start_main_#t~mem11#1.base_18| Int)) (and (= (select |#valid| |v_ULTIMATE.start_main_#t~mem11#1.base_18|) 1) (= (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_main_#t~mem11#1.base_18|) (+ (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#iter~0#1.base|) |ULTIMATE.start_main_~#iter~0#1.offset|) 4)) |v_ULTIMATE.start_main_#t~mem11#1.base_18|) (<= (+ (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#iter~0#1.base|) |ULTIMATE.start_main_~#iter~0#1.offset|) 8) (select |#length| |v_ULTIMATE.start_main_#t~mem11#1.base_18|)) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#iter~0#1.base|) |ULTIMATE.start_main_~#iter~0#1.offset|) (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_main_#t~mem11#1.base_18|) (+ (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#iter~0#1.base|) |ULTIMATE.start_main_~#iter~0#1.offset|) 4))) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#iter~0#1.base|) |ULTIMATE.start_main_~#iter~0#1.offset|) (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_main_#t~mem11#1.base_18|) (+ (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#iter~0#1.base|) |ULTIMATE.start_main_~#iter~0#1.offset|) 4)))))) (exists ((|v_ULTIMATE.start_main_#t~mem11#1.offset_17| Int)) (and (<= 0 (+ |v_ULTIMATE.start_main_#t~mem11#1.offset_17| 4)) (exists ((|v_ULTIMATE.start_main_#t~mem11#1.base_18| Int)) (and (= (select |#valid| |v_ULTIMATE.start_main_#t~mem11#1.base_18|) 1) (= (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_main_#t~mem11#1.base_18|) (+ |v_ULTIMATE.start_main_#t~mem11#1.offset_17| 4)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#iter~0#1.base|) |ULTIMATE.start_main_~#iter~0#1.offset|)) (= (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_main_#t~mem11#1.base_18|) (+ |v_ULTIMATE.start_main_#t~mem11#1.offset_17| 4)) (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#iter~0#1.base|) |ULTIMATE.start_main_~#iter~0#1.offset|)) (<= (+ 8 |v_ULTIMATE.start_main_#t~mem11#1.offset_17|) (select |#length| |v_ULTIMATE.start_main_#t~mem11#1.base_18|)))) (not (= |ULTIMATE.start_main_~#iter~0#1.offset| (+ |v_ULTIMATE.start_main_#t~mem11#1.offset_17| 4))))) (exists ((|v_ULTIMATE.start_main_#t~mem11#1.offset_17| Int)) (and (<= 0 (+ |v_ULTIMATE.start_main_#t~mem11#1.offset_17| 4)) (exists ((|v_ULTIMATE.start_main_#t~mem11#1.base_18| Int)) (and (= (select |#valid| |v_ULTIMATE.start_main_#t~mem11#1.base_18|) 1) (not (= |ULTIMATE.start_main_~#iter~0#1.base| |v_ULTIMATE.start_main_#t~mem11#1.base_18|)) (= (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_main_#t~mem11#1.base_18|) (+ |v_ULTIMATE.start_main_#t~mem11#1.offset_17| 4)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#iter~0#1.base|) |ULTIMATE.start_main_~#iter~0#1.offset|)) (= (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_main_#t~mem11#1.base_18|) (+ |v_ULTIMATE.start_main_#t~mem11#1.offset_17| 4)) (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#iter~0#1.base|) |ULTIMATE.start_main_~#iter~0#1.offset|)) (<= (+ 8 |v_ULTIMATE.start_main_#t~mem11#1.offset_17|) (select |#length| |v_ULTIMATE.start_main_#t~mem11#1.base_18|))))))) (<= |ULTIMATE.start_main_~#iter~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#iter~0#1.base|) (<= (+ |ULTIMATE.start_main_~#iter~0#1.offset| 4) (select |#length| |ULTIMATE.start_main_~#iter~0#1.base|)) (<= |#NULL.offset| 0) (= |ULTIMATE.start_main_#t~mem13#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#iter~0#1.base|) |ULTIMATE.start_main_~#iter~0#1.offset|)) (<= 0 |ULTIMATE.start_main_~#iter~0#1.offset|) (<= 0 |ULTIMATE.start_main_~list~0#1.offset|) (<= 0 |ULTIMATE.start_main_~data~0#1.offset|) (<= |#NULL.base| 0) (or (not (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#iter~0#1.base|) |ULTIMATE.start_main_~#iter~0#1.offset|) 0)) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#iter~0#1.base|) |ULTIMATE.start_main_~#iter~0#1.offset|) 0))) (<= |ULTIMATE.start_main_~list~0#1.offset| 0) (<= 0 |#NULL.offset|) (<= |ULTIMATE.start_main_~data~0#1.offset| 0) (<= 0 |#StackHeapBarrier|) (<= 0 (+ |ULTIMATE.start_main_~current~0#1.offset| 4)))' at error location [2022-11-03 02:11:38,948 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:11:38,949 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:11:38,949 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 11, 12] total 38 [2022-11-03 02:11:38,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695875775] [2022-11-03 02:11:38,949 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 02:11:38,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2022-11-03 02:11:38,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:11:38,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2022-11-03 02:11:38,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=237, Invalid=3306, Unknown=1, NotChecked=116, Total=3660 [2022-11-03 02:11:38,951 INFO L87 Difference]: Start difference. First operand 232 states and 262 transitions. Second operand has 39 states, 38 states have (on average 2.4473684210526314) internal successors, (93), 39 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:11:42,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:11:42,616 INFO L93 Difference]: Finished difference Result 478 states and 547 transitions. [2022-11-03 02:11:42,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-03 02:11:42,616 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 38 states have (on average 2.4473684210526314) internal successors, (93), 39 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-03 02:11:42,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:11:42,618 INFO L225 Difference]: With dead ends: 478 [2022-11-03 02:11:42,618 INFO L226 Difference]: Without dead ends: 478 [2022-11-03 02:11:42,619 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 59 SyntacticMatches, 6 SemanticMatches, 71 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1364 ImplicationChecksByTransitivity, 17.6s TimeCoverageRelationStatistics Valid=470, Invalid=4645, Unknown=1, NotChecked=140, Total=5256 [2022-11-03 02:11:42,620 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 541 mSDsluCounter, 2270 mSDsCounter, 0 mSdLazyCounter, 2160 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 541 SdHoareTripleChecker+Valid, 2281 SdHoareTripleChecker+Invalid, 3064 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 2160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 865 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-03 02:11:42,620 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [541 Valid, 2281 Invalid, 3064 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 2160 Invalid, 0 Unknown, 865 Unchecked, 1.8s Time] [2022-11-03 02:11:42,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2022-11-03 02:11:42,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 231. [2022-11-03 02:11:42,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 162 states have (on average 1.6111111111111112) internal successors, (261), 230 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:11:42,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 261 transitions. [2022-11-03 02:11:42,627 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 261 transitions. Word has length 33 [2022-11-03 02:11:42,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:11:42,627 INFO L495 AbstractCegarLoop]: Abstraction has 231 states and 261 transitions. [2022-11-03 02:11:42,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 38 states have (on average 2.4473684210526314) internal successors, (93), 39 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:11:42,627 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 261 transitions. [2022-11-03 02:11:42,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-03 02:11:42,628 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:11:42,628 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:11:42,652 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aea6a77-ef62-4879-93a9-693cb42b8bdd/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-03 02:11:42,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aea6a77-ef62-4879-93a9-693cb42b8bdd/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2022-11-03 02:11:42,837 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr55REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] === [2022-11-03 02:11:42,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:11:42,838 INFO L85 PathProgramCache]: Analyzing trace with hash 671181745, now seen corresponding path program 1 times [2022-11-03 02:11:42,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:11:42,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474137586] [2022-11-03 02:11:42,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:11:42,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:11:42,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:11:43,200 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-03 02:11:43,200 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:11:43,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474137586] [2022-11-03 02:11:43,201 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474137586] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:11:43,201 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:11:43,201 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-03 02:11:43,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916359401] [2022-11-03 02:11:43,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:11:43,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-03 02:11:43,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:11:43,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-03 02:11:43,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-03 02:11:43,202 INFO L87 Difference]: Start difference. First operand 231 states and 261 transitions. Second operand has 9 states, 8 states have (on average 4.125) internal successors, (33), 9 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:11:43,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:11:43,916 INFO L93 Difference]: Finished difference Result 356 states and 407 transitions. [2022-11-03 02:11:43,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-03 02:11:43,917 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.125) internal successors, (33), 9 states have internal predecessors, (33), 0 states have call successors, (0), 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 33 [2022-11-03 02:11:43,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:11:43,918 INFO L225 Difference]: With dead ends: 356 [2022-11-03 02:11:43,918 INFO L226 Difference]: Without dead ends: 356 [2022-11-03 02:11:43,918 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=115, Invalid=265, Unknown=0, NotChecked=0, Total=380 [2022-11-03 02:11:43,919 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 944 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 575 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 944 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:11:43,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [944 Valid, 559 Invalid, 616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 575 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-03 02:11:43,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2022-11-03 02:11:43,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 284. [2022-11-03 02:11:43,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 215 states have (on average 1.613953488372093) internal successors, (347), 283 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:11:43,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 347 transitions. [2022-11-03 02:11:43,925 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 347 transitions. Word has length 33 [2022-11-03 02:11:43,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:11:43,926 INFO L495 AbstractCegarLoop]: Abstraction has 284 states and 347 transitions. [2022-11-03 02:11:43,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.125) internal successors, (33), 9 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:11:43,926 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 347 transitions. [2022-11-03 02:11:43,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-11-03 02:11:43,927 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:11:43,927 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:11:43,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-11-03 02:11:43,927 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr95REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] === [2022-11-03 02:11:43,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:11:43,928 INFO L85 PathProgramCache]: Analyzing trace with hash 944318581, now seen corresponding path program 1 times [2022-11-03 02:11:43,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:11:43,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481053282] [2022-11-03 02:11:43,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:11:43,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:11:43,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:11:44,063 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-03 02:11:44,063 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:11:44,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481053282] [2022-11-03 02:11:44,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481053282] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:11:44,064 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:11:44,064 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-03 02:11:44,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81651857] [2022-11-03 02:11:44,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:11:44,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-03 02:11:44,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:11:44,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-03 02:11:44,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-03 02:11:44,065 INFO L87 Difference]: Start difference. First operand 284 states and 347 transitions. Second operand has 8 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:11:44,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:11:44,442 INFO L93 Difference]: Finished difference Result 386 states and 435 transitions. [2022-11-03 02:11:44,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-03 02:11:44,443 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 0 states have call successors, (0), 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 37 [2022-11-03 02:11:44,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:11:44,444 INFO L225 Difference]: With dead ends: 386 [2022-11-03 02:11:44,444 INFO L226 Difference]: Without dead ends: 386 [2022-11-03 02:11:44,445 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=110, Invalid=232, Unknown=0, NotChecked=0, Total=342 [2022-11-03 02:11:44,445 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 1153 mSDsluCounter, 598 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1153 SdHoareTripleChecker+Valid, 654 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:11:44,445 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1153 Valid, 654 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 02:11:44,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2022-11-03 02:11:44,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 283. [2022-11-03 02:11:44,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 214 states have (on average 1.602803738317757) internal successors, (343), 282 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:11:44,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 343 transitions. [2022-11-03 02:11:44,452 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 343 transitions. Word has length 37 [2022-11-03 02:11:44,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:11:44,452 INFO L495 AbstractCegarLoop]: Abstraction has 283 states and 343 transitions. [2022-11-03 02:11:44,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:11:44,453 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 343 transitions. [2022-11-03 02:11:44,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-03 02:11:44,453 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:11:44,453 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:11:44,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-11-03 02:11:44,454 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr61REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] === [2022-11-03 02:11:44,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:11:44,454 INFO L85 PathProgramCache]: Analyzing trace with hash -1458941221, now seen corresponding path program 1 times [2022-11-03 02:11:44,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:11:44,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968931846] [2022-11-03 02:11:44,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:11:44,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:11:44,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:11:44,836 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-03 02:11:44,836 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:11:44,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968931846] [2022-11-03 02:11:44,837 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968931846] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:11:44,837 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:11:44,837 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 02:11:44,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568175425] [2022-11-03 02:11:44,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:11:44,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-03 02:11:44,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:11:44,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-03 02:11:44,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-03 02:11:44,838 INFO L87 Difference]: Start difference. First operand 283 states and 343 transitions. Second operand has 8 states, 7 states have (on average 5.428571428571429) internal successors, (38), 8 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:11:45,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:11:45,716 INFO L93 Difference]: Finished difference Result 384 states and 431 transitions. [2022-11-03 02:11:45,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-03 02:11:45,717 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.428571428571429) internal successors, (38), 8 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2022-11-03 02:11:45,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:11:45,718 INFO L225 Difference]: With dead ends: 384 [2022-11-03 02:11:45,718 INFO L226 Difference]: Without dead ends: 384 [2022-11-03 02:11:45,718 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=75, Invalid=135, Unknown=0, NotChecked=0, Total=210 [2022-11-03 02:11:45,719 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 1024 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 555 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1024 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-03 02:11:45,719 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1024 Valid, 303 Invalid, 597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 555 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-03 02:11:45,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2022-11-03 02:11:45,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 304. [2022-11-03 02:11:45,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 235 states have (on average 1.6680851063829787) internal successors, (392), 303 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:11:45,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 392 transitions. [2022-11-03 02:11:45,727 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 392 transitions. Word has length 38 [2022-11-03 02:11:45,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:11:45,727 INFO L495 AbstractCegarLoop]: Abstraction has 304 states and 392 transitions. [2022-11-03 02:11:45,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.428571428571429) internal successors, (38), 8 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:11:45,728 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 392 transitions. [2022-11-03 02:11:45,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-03 02:11:45,728 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:11:45,729 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:11:45,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-11-03 02:11:45,729 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr95REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] === [2022-11-03 02:11:45,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:11:45,730 INFO L85 PathProgramCache]: Analyzing trace with hash -1457382676, now seen corresponding path program 1 times [2022-11-03 02:11:45,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:11:45,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833089632] [2022-11-03 02:11:45,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:11:45,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:11:45,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:11:45,852 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-03 02:11:45,852 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:11:45,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833089632] [2022-11-03 02:11:45,852 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833089632] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:11:45,853 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:11:45,853 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:11:45,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031647765] [2022-11-03 02:11:45,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:11:45,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:11:45,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:11:45,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:11:45,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:11:45,854 INFO L87 Difference]: Start difference. First operand 304 states and 392 transitions. Second operand has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:11:46,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:11:46,160 INFO L93 Difference]: Finished difference Result 398 states and 499 transitions. [2022-11-03 02:11:46,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:11:46,160 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 0 states have call successors, (0), 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 [2022-11-03 02:11:46,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:11:46,165 INFO L225 Difference]: With dead ends: 398 [2022-11-03 02:11:46,165 INFO L226 Difference]: Without dead ends: 398 [2022-11-03 02:11:46,165 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:11:46,166 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 312 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:11:46,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [312 Valid, 297 Invalid, 338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 02:11:46,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2022-11-03 02:11:46,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 308. [2022-11-03 02:11:46,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 239 states have (on average 1.6610878661087867) internal successors, (397), 307 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:11:46,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 397 transitions. [2022-11-03 02:11:46,174 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 397 transitions. Word has length 38 [2022-11-03 02:11:46,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:11:46,174 INFO L495 AbstractCegarLoop]: Abstraction has 308 states and 397 transitions. [2022-11-03 02:11:46,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:11:46,174 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 397 transitions. [2022-11-03 02:11:46,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-03 02:11:46,175 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:11:46,175 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:11:46,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-11-03 02:11:46,176 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr96REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] === [2022-11-03 02:11:46,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:11:46,176 INFO L85 PathProgramCache]: Analyzing trace with hash -1457382675, now seen corresponding path program 1 times [2022-11-03 02:11:46,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:11:46,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860925035] [2022-11-03 02:11:46,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:11:46,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:11:46,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:11:46,770 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-03 02:11:46,771 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:11:46,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860925035] [2022-11-03 02:11:46,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860925035] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:11:46,771 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:11:46,771 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-03 02:11:46,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507103917] [2022-11-03 02:11:46,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:11:46,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-03 02:11:46,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:11:46,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-03 02:11:46,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2022-11-03 02:11:46,772 INFO L87 Difference]: Start difference. First operand 308 states and 397 transitions. Second operand has 12 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 12 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:11:47,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:11:47,866 INFO L93 Difference]: Finished difference Result 402 states and 455 transitions. [2022-11-03 02:11:47,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-03 02:11:47,866 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 12 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2022-11-03 02:11:47,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:11:47,868 INFO L225 Difference]: With dead ends: 402 [2022-11-03 02:11:47,868 INFO L226 Difference]: Without dead ends: 402 [2022-11-03 02:11:47,869 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=173, Invalid=529, Unknown=0, NotChecked=0, Total=702 [2022-11-03 02:11:47,869 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 1321 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 1006 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1321 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 1067 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 1006 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-03 02:11:47,870 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1321 Valid, 555 Invalid, 1067 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 1006 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-03 02:11:47,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2022-11-03 02:11:47,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 308. [2022-11-03 02:11:47,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 239 states have (on average 1.6569037656903767) internal successors, (396), 307 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:11:47,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 396 transitions. [2022-11-03 02:11:47,877 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 396 transitions. Word has length 38 [2022-11-03 02:11:47,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:11:47,878 INFO L495 AbstractCegarLoop]: Abstraction has 308 states and 396 transitions. [2022-11-03 02:11:47,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 12 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:11:47,878 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 396 transitions. [2022-11-03 02:11:47,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-03 02:11:47,879 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:11:47,879 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:11:47,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-11-03 02:11:47,879 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr62REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] === [2022-11-03 02:11:47,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:11:47,880 INFO L85 PathProgramCache]: Analyzing trace with hash 2017471956, now seen corresponding path program 1 times [2022-11-03 02:11:47,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:11:47,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147853388] [2022-11-03 02:11:47,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:11:47,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:11:47,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:11:48,771 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-03 02:11:48,772 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:11:48,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147853388] [2022-11-03 02:11:48,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147853388] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:11:48,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1206249167] [2022-11-03 02:11:48,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:11:48,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:11:48,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aea6a77-ef62-4879-93a9-693cb42b8bdd/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:11:48,774 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aea6a77-ef62-4879-93a9-693cb42b8bdd/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:11:48,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aea6a77-ef62-4879-93a9-693cb42b8bdd/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-03 02:11:49,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:11:49,010 INFO L263 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 48 conjunts are in the unsatisfiable core [2022-11-03 02:11:49,014 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:11:49,054 INFO L390 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 13 treesize of output 9 [2022-11-03 02:11:49,059 INFO L390 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 13 treesize of output 9 [2022-11-03 02:11:49,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:49,141 INFO L390 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 14 treesize of output 16 [2022-11-03 02:11:49,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:49,149 INFO L390 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 19 treesize of output 18 [2022-11-03 02:11:49,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:49,209 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 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 [2022-11-03 02:11:49,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:49,222 INFO L390 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 14 treesize of output 16 [2022-11-03 02:11:49,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:49,292 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 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 [2022-11-03 02:11:49,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:49,302 INFO L390 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 14 treesize of output 16 [2022-11-03 02:11:49,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:49,386 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 21 [2022-11-03 02:11:49,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:49,391 INFO L390 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 14 treesize of output 16 [2022-11-03 02:11:49,399 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 02:11:49,477 INFO L390 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 9 treesize of output 3 [2022-11-03 02:11:49,480 INFO L390 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 9 treesize of output 3 [2022-11-03 02:11:49,481 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-03 02:11:49,482 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:11:53,993 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:11:53,993 INFO L390 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 23 [2022-11-03 02:11:53,997 INFO L390 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 24 [2022-11-03 02:11:54,002 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:11:54,015 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:11:54,016 INFO L390 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 23 [2022-11-03 02:11:54,019 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:11:54,021 INFO L390 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 8 [2022-11-03 02:11:54,089 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-03 02:11:54,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1206249167] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:11:54,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [306986243] [2022-11-03 02:11:54,091 INFO L159 IcfgInterpreter]: Started Sifa with 37 locations of interest [2022-11-03 02:11:54,092 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:11:54,092 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:11:54,092 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:11:54,092 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:11:54,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:54,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:54,129 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-03 02:11:54,144 INFO L390 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 13 treesize of output 9 [2022-11-03 02:11:54,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:54,152 INFO L390 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 34 treesize of output 21 [2022-11-03 02:11:54,159 INFO L390 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 13 treesize of output 9 [2022-11-03 02:11:54,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:54,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:54,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:54,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:54,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:54,182 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2022-11-03 02:11:54,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:54,193 INFO L390 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 25 treesize of output 13 [2022-11-03 02:11:54,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:54,202 INFO L390 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 26 treesize of output 28 [2022-11-03 02:11:54,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:54,219 INFO L390 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 25 treesize of output 13 [2022-11-03 02:11:54,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:54,236 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 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 [2022-11-03 02:11:54,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:54,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:54,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:54,250 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 36 [2022-11-03 02:11:54,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:54,263 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 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 [2022-11-03 02:11:54,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:54,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:54,287 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-11-03 02:11:54,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:54,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:54,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:54,304 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 36 [2022-11-03 02:11:54,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:54,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:54,326 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-11-03 02:11:54,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:54,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:54,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:54,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:54,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:54,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:54,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:54,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:54,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:54,383 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 47 [2022-11-03 02:11:54,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:54,419 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:11:54,420 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:11:54,456 INFO L356 Elim1Store]: treesize reduction 42, result has 28.8 percent of original size [2022-11-03 02:11:54,456 INFO L390 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 4 new quantified variables, introduced 4 case distinctions, treesize of input 145 treesize of output 113 [2022-11-03 02:11:54,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:54,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:54,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:54,477 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 40 [2022-11-03 02:11:54,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:54,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:54,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:54,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:54,498 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 41 treesize of output 46 [2022-11-03 02:11:54,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:54,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:54,544 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:11:54,544 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:11:54,570 INFO L356 Elim1Store]: treesize reduction 45, result has 13.5 percent of original size [2022-11-03 02:11:54,570 INFO L390 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 5 new quantified variables, introduced 6 case distinctions, treesize of input 177 treesize of output 133 [2022-11-03 02:11:54,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:54,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:54,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:54,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:54,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:54,595 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 49 [2022-11-03 02:11:54,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:54,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:54,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:54,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:54,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:54,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:54,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:54,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:54,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:54,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:54,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:54,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:54,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:54,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:54,634 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 19 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 60 [2022-11-03 02:11:54,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:54,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:54,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:54,655 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 47 [2022-11-03 02:11:54,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:54,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:54,707 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:11:54,708 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:11:54,729 INFO L356 Elim1Store]: treesize reduction 41, result has 14.6 percent of original size [2022-11-03 02:11:54,730 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 173 treesize of output 140 [2022-11-03 02:11:54,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:54,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:54,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:54,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:54,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:54,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:54,759 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 55 [2022-11-03 02:11:54,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:54,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:54,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:54,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:54,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:54,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:54,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:54,787 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 56 [2022-11-03 02:11:54,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:54,875 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:11:54,875 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:11:54,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:54,880 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:11:54,880 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:11:54,939 INFO L356 Elim1Store]: treesize reduction 80, result has 27.3 percent of original size [2022-11-03 02:11:54,940 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 13 case distinctions, treesize of input 494 treesize of output 458 [2022-11-03 02:11:54,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:54,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:54,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:54,976 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:11:54,986 INFO L356 Elim1Store]: treesize reduction 44, result has 2.2 percent of original size [2022-11-03 02:11:54,987 INFO L390 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 5 case distinctions, treesize of input 630 treesize of output 589 [2022-11-03 02:11:55,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:55,009 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:11:55,010 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:11:55,011 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:11:55,012 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:11:55,075 INFO L356 Elim1Store]: treesize reduction 156, result has 26.4 percent of original size [2022-11-03 02:11:55,076 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 12 case distinctions, treesize of input 624 treesize of output 639 [2022-11-03 02:11:55,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:55,464 INFO L356 Elim1Store]: treesize reduction 338, result has 16.7 percent of original size [2022-11-03 02:11:55,464 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 19 case distinctions, treesize of input 786 treesize of output 803 [2022-11-03 02:11:55,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:55,806 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:11:55,806 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:11:55,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:55,810 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:11:55,811 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:11:55,951 INFO L356 Elim1Store]: treesize reduction 220, result has 18.2 percent of original size [2022-11-03 02:11:55,952 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 18 case distinctions, treesize of input 1885 treesize of output 1066 [2022-11-03 02:11:55,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:55,986 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:11:55,986 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:11:56,127 INFO L356 Elim1Store]: treesize reduction 384, result has 13.1 percent of original size [2022-11-03 02:11:56,127 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 10 new quantified variables, introduced 19 case distinctions, treesize of input 1906 treesize of output 1528 [2022-11-03 02:11:56,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:56,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:56,201 INFO L356 Elim1Store]: treesize reduction 159, result has 8.6 percent of original size [2022-11-03 02:11:56,201 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 1811 treesize of output 1636 [2022-11-03 02:11:56,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:56,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:56,552 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:11:56,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:56,555 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:11:56,557 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:11:56,558 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:11:56,559 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:11:56,684 INFO L356 Elim1Store]: treesize reduction 260, result has 11.6 percent of original size [2022-11-03 02:11:56,684 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 2 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 23 case distinctions, treesize of input 1848 treesize of output 1053 [2022-11-03 02:11:56,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:56,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:56,742 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:11:56,743 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:11:56,744 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:11:56,940 INFO L356 Elim1Store]: treesize reduction 448, result has 9.1 percent of original size [2022-11-03 02:11:56,941 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 2 disjoint index pairs (out of 21 index pairs), introduced 11 new quantified variables, introduced 24 case distinctions, treesize of input 1866 treesize of output 1502 [2022-11-03 02:11:57,111 INFO L356 Elim1Store]: treesize reduction 208, result has 24.1 percent of original size [2022-11-03 02:11:57,112 INFO L390 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 1835 treesize of output 1695 [2022-11-03 02:11:57,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:57,402 INFO L356 Elim1Store]: treesize reduction 458, result has 14.4 percent of original size [2022-11-03 02:11:57,402 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 26 case distinctions, treesize of input 1769 treesize of output 1733 [2022-11-03 02:11:58,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:58,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:58,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:58,880 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:11:58,881 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:11:58,885 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:11:58,886 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:11:58,887 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:11:59,007 INFO L356 Elim1Store]: treesize reduction 248, result has 12.1 percent of original size [2022-11-03 02:11:59,008 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 23 case distinctions, treesize of input 6292 treesize of output 3472 [2022-11-03 02:11:59,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:59,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:11:59,092 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:11:59,093 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:11:59,093 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:11:59,241 INFO L356 Elim1Store]: treesize reduction 432, result has 9.4 percent of original size [2022-11-03 02:11:59,242 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 11 new quantified variables, introduced 24 case distinctions, treesize of input 6310 treesize of output 5001 [2022-11-03 02:11:59,487 INFO L356 Elim1Store]: treesize reduction 292, result has 20.0 percent of original size [2022-11-03 02:11:59,487 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 13 case distinctions, treesize of input 6303 treesize of output 5783 [2022-11-03 02:12:00,430 INFO L390 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 1 [2022-11-03 02:12:00,434 INFO L390 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 13 treesize of output 9 [2022-11-03 02:12:00,441 INFO L390 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 13 treesize of output 9 [2022-11-03 02:12:00,464 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-03 02:12:00,464 INFO L390 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 1 case distinctions, treesize of input 14 treesize of output 20 [2022-11-03 02:12:00,486 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-03 02:12:00,487 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 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 [2022-11-03 02:12:00,501 INFO L390 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 [2022-11-03 02:12:00,509 INFO L390 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 19 treesize of output 1 [2022-11-03 02:12:00,516 INFO L390 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 13 treesize of output 9 [2022-11-03 02:12:00,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:12:00,530 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2022-11-03 02:12:00,539 INFO L390 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 [2022-11-03 02:12:00,568 INFO L356 Elim1Store]: treesize reduction 24, result has 38.5 percent of original size [2022-11-03 02:12:00,569 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 24 treesize of output 31 [2022-11-03 02:12:00,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:12:00,582 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 23 [2022-11-03 02:12:00,621 INFO L356 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-03 02:12:00,621 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-03 02:12:00,645 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-03 02:12:00,656 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 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 [2022-11-03 02:12:00,666 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 16 [2022-11-03 02:12:00,679 INFO L390 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 13 treesize of output 9 [2022-11-03 02:12:00,684 INFO L390 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 1 [2022-11-03 02:12:00,688 INFO L390 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 13 treesize of output 9 [2022-11-03 02:12:00,725 INFO L390 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 [2022-11-03 02:12:00,731 INFO L390 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 [2022-11-03 02:12:00,744 INFO L390 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 [2022-11-03 02:12:00,751 INFO L390 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 [2022-11-03 02:12:00,758 INFO L390 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 [2022-11-03 02:12:00,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:12:00,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:12:00,786 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:12:00,790 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 02:12:00,791 INFO L390 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 1 case distinctions, treesize of input 25 treesize of output 27 [2022-11-03 02:12:00,798 INFO L390 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 [2022-11-03 02:12:00,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:12:00,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:12:00,812 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:12:00,815 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 02:12:00,815 INFO L390 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 1 case distinctions, treesize of input 25 treesize of output 27 [2022-11-03 02:12:00,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:12:00,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:12:00,887 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:12:00,929 INFO L356 Elim1Store]: treesize reduction 62, result has 26.2 percent of original size [2022-11-03 02:12:00,930 INFO L390 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 6 case distinctions, treesize of input 69 treesize of output 70 [2022-11-03 02:12:00,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:12:00,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:12:00,950 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:12:00,981 INFO L356 Elim1Store]: treesize reduction 62, result has 26.2 percent of original size [2022-11-03 02:12:00,981 INFO L390 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 6 case distinctions, treesize of input 69 treesize of output 70 [2022-11-03 02:12:01,003 INFO L390 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 [2022-11-03 02:12:01,044 INFO L390 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 [2022-11-03 02:12:01,079 INFO L356 Elim1Store]: treesize reduction 30, result has 44.4 percent of original size [2022-11-03 02:12:01,080 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 37 [2022-11-03 02:12:01,119 INFO L356 Elim1Store]: treesize reduction 30, result has 44.4 percent of original size [2022-11-03 02:12:01,119 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 37 [2022-11-03 02:12:01,465 INFO L390 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 [2022-11-03 02:12:01,652 INFO L356 Elim1Store]: treesize reduction 107, result has 22.5 percent of original size [2022-11-03 02:12:01,652 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 10 case distinctions, treesize of input 34 treesize of output 52 [2022-11-03 02:12:01,691 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2022-11-03 02:12:01,747 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-03 02:12:01,747 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 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 [2022-11-03 02:12:01,758 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 14 treesize of output 16 [2022-11-03 02:12:01,855 INFO L356 Elim1Store]: treesize reduction 46, result has 37.8 percent of original size [2022-11-03 02:12:01,856 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 109 treesize of output 129 [2022-11-03 02:12:01,985 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-03 02:12:01,985 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 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 [2022-11-03 02:12:02,026 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-03 02:12:02,027 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 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 [2022-11-03 02:12:02,108 INFO L390 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 13 treesize of output 9 [2022-11-03 02:12:02,113 INFO L390 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 13 treesize of output 9 [2022-11-03 02:12:02,119 INFO L390 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 1 [2022-11-03 02:12:02,143 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-03 02:12:02,143 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 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 [2022-11-03 02:12:02,149 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 14 treesize of output 16 [2022-11-03 02:12:02,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:12:02,156 INFO L390 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 25 treesize of output 13 [2022-11-03 02:12:02,163 INFO L390 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 [2022-11-03 02:12:02,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:12:02,171 INFO L390 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 25 treesize of output 13 [2022-11-03 02:12:02,174 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:12:07,614 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '22947#(and (<= 0 |ULTIMATE.start_main_~#dst~1#1.offset|) (<= 0 |#NULL.base|) (<= |ULTIMATE.start_main_~#dst~1#1.offset| 0) (<= |ULTIMATE.start_main_~#sub1~0#1.offset| 0) (= (select |#valid| |ULTIMATE.start_main_~#sub2~0#1.base|) 1) (<= 0 |ULTIMATE.start_main_~dst~0#1.offset|) (<= (+ |ULTIMATE.start_main_~list~1#1.offset| 4) (select |#length| |ULTIMATE.start_main_~list~1#1.base|)) (not (= |ULTIMATE.start_main_~#sub2~0#1.base| |ULTIMATE.start_main_~list~1#1.base|)) (not (= (select |#valid| |ULTIMATE.start_main_~next~0#1.base|) 1)) (<= 0 |ULTIMATE.start_main_~node~1#1.offset|) (<= |#NULL.offset| 0) (<= |ULTIMATE.start_main_~list~1#1.offset| 0) (= (select |#valid| |ULTIMATE.start_main_~list~1#1.base|) 1) (<= 0 |ULTIMATE.start_main_~node~1#1.base|) (<= 0 |ULTIMATE.start_main_~#sub1~0#1.offset|) (< |#StackHeapBarrier| |ULTIMATE.start_main_~#sub2~0#1.base|) (<= 0 |ULTIMATE.start_main_~list~0#1.offset|) (<= 0 |ULTIMATE.start_main_~data~0#1.offset|) (<= |#NULL.base| 0) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#sub1~0#1.base|) |ULTIMATE.start_main_~#sub1~0#1.offset|) (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~1#1.base|) |ULTIMATE.start_main_~list~1#1.offset|)) (<= |ULTIMATE.start_main_~list~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~dst~0#1.base|) (= 4 (select |#length| |ULTIMATE.start_main_~#sub2~0#1.base|)) (= |ULTIMATE.start_main_~#sub2~0#1.offset| 0) (<= 0 |#NULL.offset|) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#sub1~0#1.base|) |ULTIMATE.start_main_~#sub1~0#1.offset|) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~1#1.base|) |ULTIMATE.start_main_~list~1#1.offset|)) (<= |ULTIMATE.start_main_~dst~0#1.base| 0) (<= |ULTIMATE.start_main_~node~1#1.base| 0) (<= |ULTIMATE.start_main_~data~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~list~1#1.offset|) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~#sub1~0#1.base|) (<= 0 |ULTIMATE.start_main_~#dst~1#1.base|) (<= 0 (+ |ULTIMATE.start_main_~current~0#1.offset| 4)) (<= |ULTIMATE.start_main_~dst~0#1.offset| 0) (<= |ULTIMATE.start_main_~node~1#1.offset| 0))' at error location [2022-11-03 02:12:07,614 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:12:07,614 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:12:07,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 10, 9] total 24 [2022-11-03 02:12:07,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583701582] [2022-11-03 02:12:07,614 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 02:12:07,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-03 02:12:07,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:12:07,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-03 02:12:07,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=243, Invalid=2946, Unknown=3, NotChecked=0, Total=3192 [2022-11-03 02:12:07,616 INFO L87 Difference]: Start difference. First operand 308 states and 396 transitions. Second operand has 25 states, 25 states have (on average 3.68) internal successors, (92), 24 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) [2022-11-03 02:12:08,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:12:08,380 INFO L93 Difference]: Finished difference Result 321 states and 409 transitions. [2022-11-03 02:12:08,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-03 02:12:08,380 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.68) internal successors, (92), 24 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) Word has length 39 [2022-11-03 02:12:08,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:12:08,381 INFO L225 Difference]: With dead ends: 321 [2022-11-03 02:12:08,381 INFO L226 Difference]: Without dead ends: 321 [2022-11-03 02:12:08,382 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 74 SyntacticMatches, 4 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1366 ImplicationChecksByTransitivity, 10.2s TimeCoverageRelationStatistics Valid=304, Invalid=3599, Unknown=3, NotChecked=0, Total=3906 [2022-11-03 02:12:08,382 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 87 mSDsluCounter, 1380 mSDsCounter, 0 mSdLazyCounter, 623 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 1395 SdHoareTripleChecker+Invalid, 884 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 226 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:12:08,383 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 1395 Invalid, 884 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 623 Invalid, 0 Unknown, 226 Unchecked, 0.5s Time] [2022-11-03 02:12:08,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2022-11-03 02:12:08,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 317. [2022-11-03 02:12:08,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 248 states have (on average 1.6330645161290323) internal successors, (405), 316 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:12:08,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 405 transitions. [2022-11-03 02:12:08,389 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 405 transitions. Word has length 39 [2022-11-03 02:12:08,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:12:08,389 INFO L495 AbstractCegarLoop]: Abstraction has 317 states and 405 transitions. [2022-11-03 02:12:08,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.68) internal successors, (92), 24 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) [2022-11-03 02:12:08,390 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 405 transitions. [2022-11-03 02:12:08,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-11-03 02:12:08,390 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:12:08,391 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:12:08,424 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aea6a77-ef62-4879-93a9-693cb42b8bdd/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-03 02:12:08,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aea6a77-ef62-4879-93a9-693cb42b8bdd/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2022-11-03 02:12:08,605 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr38REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] === [2022-11-03 02:12:08,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:12:08,606 INFO L85 PathProgramCache]: Analyzing trace with hash -2024368557, now seen corresponding path program 1 times [2022-11-03 02:12:08,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:12:08,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981431984] [2022-11-03 02:12:08,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:12:08,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:12:08,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:12:11,540 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:12:11,540 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:12:11,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981431984] [2022-11-03 02:12:11,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981431984] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:12:11,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1263032391] [2022-11-03 02:12:11,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:12:11,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:12:11,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aea6a77-ef62-4879-93a9-693cb42b8bdd/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:12:11,543 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aea6a77-ef62-4879-93a9-693cb42b8bdd/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:12:11,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aea6a77-ef62-4879-93a9-693cb42b8bdd/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-03 02:12:11,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:12:11,757 INFO L263 TraceCheckSpWp]: Trace formula consists of 419 conjuncts, 113 conjunts are in the unsatisfiable core [2022-11-03 02:12:11,779 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:12:11,784 INFO L390 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 [2022-11-03 02:12:11,850 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-03 02:12:11,850 INFO L390 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 [2022-11-03 02:12:11,911 INFO L390 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 [2022-11-03 02:12:11,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:12:11,981 INFO L390 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 38 treesize of output 29 [2022-11-03 02:12:12,081 INFO L356 Elim1Store]: treesize reduction 48, result has 36.0 percent of original size [2022-11-03 02:12:12,082 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 26 treesize of output 41 [2022-11-03 02:12:12,159 INFO L390 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 39 treesize of output 35 [2022-11-03 02:12:12,185 INFO L390 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 39 treesize of output 35 [2022-11-03 02:12:12,208 INFO L356 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-11-03 02:12:12,209 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 26 [2022-11-03 02:12:12,300 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-03 02:12:12,301 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 33 [2022-11-03 02:12:12,315 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2022-11-03 02:12:12,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:12:12,436 INFO L390 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 56 treesize of output 47 [2022-11-03 02:12:12,463 INFO L390 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 13 treesize of output 9 [2022-11-03 02:12:12,774 INFO L356 Elim1Store]: treesize reduction 168, result has 33.6 percent of original size [2022-11-03 02:12:12,775 INFO L390 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 14 case distinctions, treesize of input 92 treesize of output 153 [2022-11-03 02:12:13,076 INFO L390 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 19 treesize of output 18 [2022-11-03 02:12:13,092 INFO L356 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-03 02:12:13,093 INFO L390 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 99 treesize of output 68 [2022-11-03 02:12:13,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:12:13,519 INFO L390 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 0 case distinctions, treesize of input 32 treesize of output 34 [2022-11-03 02:12:13,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:12:13,527 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:12:13,539 INFO L356 Elim1Store]: treesize reduction 41, result has 14.6 percent of original size [2022-11-03 02:12:13,539 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 173 treesize of output 103 [2022-11-03 02:12:14,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:12:14,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:12:14,280 INFO L390 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 0 case distinctions, treesize of input 32 treesize of output 34 [2022-11-03 02:12:14,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:12:14,286 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:12:14,303 INFO L356 Elim1Store]: treesize reduction 44, result has 21.4 percent of original size [2022-11-03 02:12:14,303 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 11 case distinctions, treesize of input 185 treesize of output 111 [2022-11-03 02:12:14,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:12:14,958 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:12:14,978 INFO L356 Elim1Store]: treesize reduction 59, result has 20.3 percent of original size [2022-11-03 02:12:14,978 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 12 case distinctions, treesize of input 215 treesize of output 133 [2022-11-03 02:12:14,991 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 02:12:14,991 INFO L390 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 4 new quantified variables, introduced 1 case distinctions, treesize of input 53 treesize of output 46 [2022-11-03 02:12:15,353 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:12:15,353 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 189 treesize of output 169 [2022-11-03 02:12:15,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:12:15,977 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:12:16,014 INFO L356 Elim1Store]: treesize reduction 112, result has 17.0 percent of original size [2022-11-03 02:12:16,015 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 1 disjoint index pairs (out of 21 index pairs), introduced 9 new quantified variables, introduced 23 case distinctions, treesize of input 172 treesize of output 147 [2022-11-03 02:12:16,652 INFO L356 Elim1Store]: treesize reduction 24, result has 77.1 percent of original size [2022-11-03 02:12:16,653 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 10 new quantified variables, introduced 28 case distinctions, treesize of input 170 treesize of output 160 [2022-11-03 02:12:23,399 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:12:23,399 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:12:44,664 WARN L234 SmtUtils]: Spent 18.33s on a formula simplification. DAG size of input: 92 DAG size of output: 88 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:12:44,737 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:12:44,737 INFO L390 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 188 treesize of output 146 [2022-11-03 02:12:44,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:12:44,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:12:44,782 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:12:44,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:12:44,790 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:12:44,790 INFO L390 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 43 treesize of output 43 [2022-11-03 02:12:44,818 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:12:44,819 INFO L390 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 296 treesize of output 224 [2022-11-03 02:12:45,699 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((v_arrayElimArr_5 (Array Int Int)) (|v_ULTIMATE.start_main_~#iter~0#1.base_75| Int) (|v_ULTIMATE.start_main_~item~0#1.base_38| Int) (v_ArrVal_1927 (Array Int Int)) (v_ArrVal_1943 Int) (v_ArrVal_1945 Int) (v_ArrVal_1934 Int)) (let ((.cse3 (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~node~0#1.base| v_ArrVal_1927) |v_ULTIMATE.start_main_~item~0#1.base_38| v_arrayElimArr_5))) (let ((.cse4 (store (select .cse3 |v_ULTIMATE.start_main_~#iter~0#1.base_75|) 0 |v_ULTIMATE.start_main_~item~0#1.base_38|))) (let ((.cse6 (store .cse4 4 v_ArrVal_1943))) (let ((.cse5 (store |c_#valid| |v_ULTIMATE.start_main_~item~0#1.base_38| 1)) (.cse2 (select (select (store .cse3 |v_ULTIMATE.start_main_~#iter~0#1.base_75| .cse6) |v_ULTIMATE.start_main_~item~0#1.base_38|) 4))) (let ((.cse1 (select (store .cse3 |v_ULTIMATE.start_main_~#iter~0#1.base_75| (store .cse6 0 .cse2)) .cse2)) (.cse0 (store .cse5 |v_ULTIMATE.start_main_~#iter~0#1.base_75| v_ArrVal_1934))) (or (= (select .cse0 (select .cse1 |c_ULTIMATE.start_main_~data~0#1.offset|)) 1) (= (select .cse0 (select .cse1 v_ArrVal_1945)) 1) (not (= (select .cse0 .cse2) 1)) (not (= (select .cse0 (select (select (store .cse3 |v_ULTIMATE.start_main_~#iter~0#1.base_75| .cse4) |v_ULTIMATE.start_main_~item~0#1.base_38|) 0)) 1)) (not (= (select v_arrayElimArr_5 4) |c_ULTIMATE.start_main_~data~0#1.base|)) (not (= (select .cse5 |v_ULTIMATE.start_main_~#iter~0#1.base_75|) 0)) (not (< |c_#StackHeapBarrier| |v_ULTIMATE.start_main_~#iter~0#1.base_75|))))))))) (forall ((|v_ULTIMATE.start_main_~#iter~0#1.base_75| Int) (v_arrayElimArr_3 (Array Int Int)) (|v_ULTIMATE.start_main_~item~0#1.base_38| Int) (v_ArrVal_1927 (Array Int Int)) (v_ArrVal_1943 Int) (v_ArrVal_1934 Int)) (let ((.cse8 (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~node~0#1.base| v_ArrVal_1927) |v_ULTIMATE.start_main_~item~0#1.base_38| v_arrayElimArr_3))) (let ((.cse12 (store (select .cse8 |v_ULTIMATE.start_main_~#iter~0#1.base_75|) 0 |v_ULTIMATE.start_main_~item~0#1.base_38|))) (let ((.cse11 (store |c_#valid| |v_ULTIMATE.start_main_~item~0#1.base_38| 1)) (.cse9 (store .cse12 4 v_ArrVal_1943))) (let ((.cse10 (select (select (store .cse8 |v_ULTIMATE.start_main_~#iter~0#1.base_75| .cse9) |v_ULTIMATE.start_main_~item~0#1.base_38|) 4)) (.cse7 (store .cse11 |v_ULTIMATE.start_main_~#iter~0#1.base_75| v_ArrVal_1934))) (or (= (select .cse7 (select (select (store .cse8 |v_ULTIMATE.start_main_~#iter~0#1.base_75| (store .cse9 0 .cse10)) .cse10) |c_ULTIMATE.start_main_~data~0#1.offset|)) 1) (not (= (select v_arrayElimArr_3 4) |c_ULTIMATE.start_main_~data~0#1.base|)) (not (= (select .cse7 .cse10) 1)) (not (= (select .cse11 |v_ULTIMATE.start_main_~#iter~0#1.base_75|) 0)) (not (= (select .cse7 (select (select (store .cse8 |v_ULTIMATE.start_main_~#iter~0#1.base_75| .cse12) |v_ULTIMATE.start_main_~item~0#1.base_38|) 0)) 1)) (not (< |c_#StackHeapBarrier| |v_ULTIMATE.start_main_~#iter~0#1.base_75|))))))))) is different from false [2022-11-03 02:12:47,769 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:12:47,769 INFO L390 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 310 treesize of output 198 [2022-11-03 02:12:47,781 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:12:47,813 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:12:47,814 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 1838 treesize of output 1788 [2022-11-03 02:12:47,858 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:12:47,859 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 1780 treesize of output 1530 [2022-11-03 02:12:47,896 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7358 treesize of output 7282 [2022-11-03 02:12:48,152 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25214 treesize of output 24958