./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety-ext/dll_extends_pointer.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b401557a-b961-4012-9ec3-2d29f41357c4/bin/utaipan-Xvt2sAort0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b401557a-b961-4012-9ec3-2d29f41357c4/bin/utaipan-Xvt2sAort0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b401557a-b961-4012-9ec3-2d29f41357c4/bin/utaipan-Xvt2sAort0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b401557a-b961-4012-9ec3-2d29f41357c4/bin/utaipan-Xvt2sAort0/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext/dll_extends_pointer.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b401557a-b961-4012-9ec3-2d29f41357c4/bin/utaipan-Xvt2sAort0/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b401557a-b961-4012-9ec3-2d29f41357c4/bin/utaipan-Xvt2sAort0 --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 b19ed65fc9d9f8e19f4d644b05d37e3da28cb107a90eedb15c652c094a7f23f1 --- 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-e04fb08 [2022-11-16 15:52:47,002 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 15:52:47,005 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 15:52:47,025 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 15:52:47,025 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 15:52:47,026 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 15:52:47,028 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 15:52:47,029 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 15:52:47,031 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 15:52:47,032 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 15:52:47,033 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 15:52:47,035 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 15:52:47,035 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 15:52:47,036 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 15:52:47,038 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 15:52:47,039 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 15:52:47,040 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 15:52:47,041 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 15:52:47,043 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 15:52:47,046 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 15:52:47,047 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 15:52:47,051 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 15:52:47,053 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 15:52:47,054 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 15:52:47,057 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 15:52:47,058 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 15:52:47,058 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 15:52:47,059 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 15:52:47,059 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 15:52:47,061 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 15:52:47,061 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 15:52:47,062 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 15:52:47,063 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 15:52:47,064 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 15:52:47,065 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 15:52:47,065 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 15:52:47,066 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 15:52:47,077 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 15:52:47,078 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 15:52:47,079 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 15:52:47,079 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 15:52:47,080 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b401557a-b961-4012-9ec3-2d29f41357c4/bin/utaipan-Xvt2sAort0/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-11-16 15:52:47,130 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 15:52:47,130 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 15:52:47,131 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 15:52:47,131 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 15:52:47,132 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 15:52:47,132 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 15:52:47,132 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-16 15:52:47,132 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-16 15:52:47,133 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-16 15:52:47,133 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-16 15:52:47,134 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-16 15:52:47,134 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-16 15:52:47,134 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-16 15:52:47,134 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-16 15:52:47,135 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-16 15:52:47,135 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-16 15:52:47,135 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-16 15:52:47,135 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-16 15:52:47,136 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 15:52:47,136 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 15:52:47,136 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 15:52:47,136 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 15:52:47,136 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 15:52:47,137 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 15:52:47,137 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 15:52:47,137 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 15:52:47,137 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-16 15:52:47,137 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-16 15:52:47,138 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-16 15:52:47,138 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 15:52:47,138 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-16 15:52:47,138 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 15:52:47,138 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 15:52:47,139 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 15:52:47,139 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 15:52:47,139 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 15:52:47,139 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 15:52:47,139 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-16 15:52:47,140 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 15:52:47,140 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-16 15:52:47,140 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 15:52:47,140 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-16 15:52:47,140 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_b401557a-b961-4012-9ec3-2d29f41357c4/bin/utaipan-Xvt2sAort0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b401557a-b961-4012-9ec3-2d29f41357c4/bin/utaipan-Xvt2sAort0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b19ed65fc9d9f8e19f4d644b05d37e3da28cb107a90eedb15c652c094a7f23f1 [2022-11-16 15:52:47,465 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 15:52:47,505 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 15:52:47,507 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 15:52:47,508 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 15:52:47,509 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 15:52:47,510 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b401557a-b961-4012-9ec3-2d29f41357c4/bin/utaipan-Xvt2sAort0/../../sv-benchmarks/c/memsafety-ext/dll_extends_pointer.i [2022-11-16 15:52:47,607 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b401557a-b961-4012-9ec3-2d29f41357c4/bin/utaipan-Xvt2sAort0/data/ea411e3ae/5de7ad49fa464955a29a911c4779fc5f/FLAGc01d7997c [2022-11-16 15:52:48,197 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 15:52:48,198 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b401557a-b961-4012-9ec3-2d29f41357c4/sv-benchmarks/c/memsafety-ext/dll_extends_pointer.i [2022-11-16 15:52:48,210 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b401557a-b961-4012-9ec3-2d29f41357c4/bin/utaipan-Xvt2sAort0/data/ea411e3ae/5de7ad49fa464955a29a911c4779fc5f/FLAGc01d7997c [2022-11-16 15:52:48,467 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b401557a-b961-4012-9ec3-2d29f41357c4/bin/utaipan-Xvt2sAort0/data/ea411e3ae/5de7ad49fa464955a29a911c4779fc5f [2022-11-16 15:52:48,470 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 15:52:48,471 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 15:52:48,483 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 15:52:48,483 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 15:52:48,487 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 15:52:48,487 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:52:48" (1/1) ... [2022-11-16 15:52:48,490 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7653d3e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:52:48, skipping insertion in model container [2022-11-16 15:52:48,491 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:52:48" (1/1) ... [2022-11-16 15:52:48,499 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 15:52:48,532 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 15:52:48,900 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 15:52:48,916 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 15:52:48,971 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 15:52:49,001 INFO L208 MainTranslator]: Completed translation [2022-11-16 15:52:49,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:52:49 WrapperNode [2022-11-16 15:52:49,002 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 15:52:49,003 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 15:52:49,003 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 15:52:49,003 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 15:52:49,011 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:52:49" (1/1) ... [2022-11-16 15:52:49,048 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:52:49" (1/1) ... [2022-11-16 15:52:49,076 INFO L138 Inliner]: procedures = 123, calls = 21, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 63 [2022-11-16 15:52:49,077 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 15:52:49,078 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 15:52:49,078 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 15:52:49,078 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 15:52:49,088 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:52:49" (1/1) ... [2022-11-16 15:52:49,088 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:52:49" (1/1) ... [2022-11-16 15:52:49,099 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:52:49" (1/1) ... [2022-11-16 15:52:49,100 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:52:49" (1/1) ... [2022-11-16 15:52:49,112 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:52:49" (1/1) ... [2022-11-16 15:52:49,120 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:52:49" (1/1) ... [2022-11-16 15:52:49,122 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:52:49" (1/1) ... [2022-11-16 15:52:49,124 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:52:49" (1/1) ... [2022-11-16 15:52:49,128 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 15:52:49,134 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 15:52:49,135 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 15:52:49,135 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 15:52:49,136 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:52:49" (1/1) ... [2022-11-16 15:52:49,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 15:52:49,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b401557a-b961-4012-9ec3-2d29f41357c4/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 15:52:49,165 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b401557a-b961-4012-9ec3-2d29f41357c4/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 15:52:49,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b401557a-b961-4012-9ec3-2d29f41357c4/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 15:52:49,220 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 15:52:49,221 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 15:52:49,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 15:52:49,221 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 15:52:49,221 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 15:52:49,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 15:52:49,221 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 15:52:49,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 15:52:49,383 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 15:52:49,385 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 15:52:49,748 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 15:52:49,785 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 15:52:49,791 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-16 15:52:49,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 03:52:49 BoogieIcfgContainer [2022-11-16 15:52:49,800 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 15:52:49,802 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 15:52:49,804 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 15:52:49,808 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 15:52:49,809 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 03:52:48" (1/3) ... [2022-11-16 15:52:49,810 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75ce141b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:52:49, skipping insertion in model container [2022-11-16 15:52:49,811 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:52:49" (2/3) ... [2022-11-16 15:52:49,811 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75ce141b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:52:49, skipping insertion in model container [2022-11-16 15:52:49,811 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 03:52:49" (3/3) ... [2022-11-16 15:52:49,813 INFO L112 eAbstractionObserver]: Analyzing ICFG dll_extends_pointer.i [2022-11-16 15:52:49,835 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 15:52:49,835 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 27 error locations. [2022-11-16 15:52:49,895 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 15:52:49,907 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;@3cc0b72b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 15:52:49,908 INFO L358 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2022-11-16 15:52:49,913 INFO L276 IsEmpty]: Start isEmpty. Operand has 52 states, 24 states have (on average 2.3333333333333335) internal successors, (56), 51 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:52:49,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-11-16 15:52:49,920 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:52:49,921 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-11-16 15:52:49,922 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 15:52:49,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:52:49,930 INFO L85 PathProgramCache]: Analyzing trace with hash 3879, now seen corresponding path program 1 times [2022-11-16 15:52:49,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:52:49,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907432878] [2022-11-16 15:52:49,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:52:49,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:52:50,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:52:50,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 15:52:50,191 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:52:50,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907432878] [2022-11-16 15:52:50,192 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907432878] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 15:52:50,192 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 15:52:50,193 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-16 15:52:50,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298991581] [2022-11-16 15:52:50,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 15:52:50,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 15:52:50,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:52:50,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 15:52:50,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 15:52:50,236 INFO L87 Difference]: Start difference. First operand has 52 states, 24 states have (on average 2.3333333333333335) internal successors, (56), 51 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:52:50,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:52:50,414 INFO L93 Difference]: Finished difference Result 54 states and 57 transitions. [2022-11-16 15:52:50,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 15:52:50,417 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 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 2 [2022-11-16 15:52:50,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:52:50,426 INFO L225 Difference]: With dead ends: 54 [2022-11-16 15:52:50,427 INFO L226 Difference]: Without dead ends: 52 [2022-11-16 15:52:50,429 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 15:52:50,432 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 35 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 15:52:50,433 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 20 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 15:52:50,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-11-16 15:52:50,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 47. [2022-11-16 15:52:50,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 27 states have (on average 1.9259259259259258) internal successors, (52), 46 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:52:50,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 52 transitions. [2022-11-16 15:52:50,469 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 52 transitions. Word has length 2 [2022-11-16 15:52:50,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:52:50,470 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 52 transitions. [2022-11-16 15:52:50,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:52:50,471 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 52 transitions. [2022-11-16 15:52:50,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-11-16 15:52:50,471 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:52:50,472 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-11-16 15:52:50,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 15:52:50,472 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 15:52:50,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:52:50,473 INFO L85 PathProgramCache]: Analyzing trace with hash 3880, now seen corresponding path program 1 times [2022-11-16 15:52:50,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:52:50,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425802397] [2022-11-16 15:52:50,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:52:50,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:52:50,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:52:50,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 15:52:50,559 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:52:50,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425802397] [2022-11-16 15:52:50,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425802397] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 15:52:50,559 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 15:52:50,560 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-16 15:52:50,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087008716] [2022-11-16 15:52:50,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 15:52:50,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 15:52:50,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:52:50,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 15:52:50,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 15:52:50,563 INFO L87 Difference]: Start difference. First operand 47 states and 52 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:52:50,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:52:50,658 INFO L93 Difference]: Finished difference Result 48 states and 54 transitions. [2022-11-16 15:52:50,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 15:52:50,659 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 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 2 [2022-11-16 15:52:50,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:52:50,660 INFO L225 Difference]: With dead ends: 48 [2022-11-16 15:52:50,660 INFO L226 Difference]: Without dead ends: 48 [2022-11-16 15:52:50,661 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 15:52:50,662 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 14 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 15:52:50,663 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 39 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 15:52:50,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2022-11-16 15:52:50,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 42. [2022-11-16 15:52:50,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 27 states have (on average 1.7407407407407407) internal successors, (47), 41 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:52:50,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 47 transitions. [2022-11-16 15:52:50,669 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 47 transitions. Word has length 2 [2022-11-16 15:52:50,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:52:50,669 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 47 transitions. [2022-11-16 15:52:50,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:52:50,670 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 47 transitions. [2022-11-16 15:52:50,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-16 15:52:50,671 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:52:50,671 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 15:52:50,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 15:52:50,672 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 15:52:50,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:52:50,672 INFO L85 PathProgramCache]: Analyzing trace with hash 1730509016, now seen corresponding path program 1 times [2022-11-16 15:52:50,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:52:50,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581344832] [2022-11-16 15:52:50,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:52:50,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:52:50,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:52:50,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 15:52:50,800 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:52:50,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581344832] [2022-11-16 15:52:50,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581344832] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 15:52:50,801 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 15:52:50,801 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 15:52:50,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604834019] [2022-11-16 15:52:50,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 15:52:50,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 15:52:50,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:52:50,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 15:52:50,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 15:52:50,805 INFO L87 Difference]: Start difference. First operand 42 states and 47 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:52:50,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:52:50,943 INFO L93 Difference]: Finished difference Result 69 states and 78 transitions. [2022-11-16 15:52:50,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 15:52:50,944 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-16 15:52:50,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:52:50,945 INFO L225 Difference]: With dead ends: 69 [2022-11-16 15:52:50,945 INFO L226 Difference]: Without dead ends: 69 [2022-11-16 15:52:50,946 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 [2022-11-16 15:52:50,947 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 50 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 15:52:50,948 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 34 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 15:52:50,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2022-11-16 15:52:50,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 43. [2022-11-16 15:52:50,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 28 states have (on average 1.7142857142857142) internal successors, (48), 42 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:52:50,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 48 transitions. [2022-11-16 15:52:50,953 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 48 transitions. Word has length 8 [2022-11-16 15:52:50,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:52:50,954 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 48 transitions. [2022-11-16 15:52:50,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:52:50,954 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 48 transitions. [2022-11-16 15:52:50,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-16 15:52:50,955 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:52:50,956 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 15:52:50,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 15:52:50,957 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 15:52:50,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:52:50,958 INFO L85 PathProgramCache]: Analyzing trace with hash 1730507620, now seen corresponding path program 1 times [2022-11-16 15:52:50,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:52:50,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416777272] [2022-11-16 15:52:50,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:52:50,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:52:50,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:52:51,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 15:52:51,099 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:52:51,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416777272] [2022-11-16 15:52:51,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416777272] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 15:52:51,100 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 15:52:51,100 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 15:52:51,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574829173] [2022-11-16 15:52:51,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 15:52:51,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 15:52:51,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:52:51,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 15:52:51,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 15:52:51,104 INFO L87 Difference]: Start difference. First operand 43 states and 48 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:52:51,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:52:51,204 INFO L93 Difference]: Finished difference Result 48 states and 51 transitions. [2022-11-16 15:52:51,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 15:52:51,205 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-16 15:52:51,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:52:51,206 INFO L225 Difference]: With dead ends: 48 [2022-11-16 15:52:51,206 INFO L226 Difference]: Without dead ends: 48 [2022-11-16 15:52:51,207 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 [2022-11-16 15:52:51,208 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 36 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 15:52:51,209 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 22 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 15:52:51,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2022-11-16 15:52:51,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 44. [2022-11-16 15:52:51,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 30 states have (on average 1.7) internal successors, (51), 43 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:52:51,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 51 transitions. [2022-11-16 15:52:51,214 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 51 transitions. Word has length 8 [2022-11-16 15:52:51,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:52:51,215 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 51 transitions. [2022-11-16 15:52:51,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:52:51,215 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 51 transitions. [2022-11-16 15:52:51,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-16 15:52:51,216 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:52:51,216 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 15:52:51,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 15:52:51,217 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 15:52:51,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:52:51,217 INFO L85 PathProgramCache]: Analyzing trace with hash 1730507621, now seen corresponding path program 1 times [2022-11-16 15:52:51,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:52:51,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713360016] [2022-11-16 15:52:51,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:52:51,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:52:51,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:52:51,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 15:52:51,388 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:52:51,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713360016] [2022-11-16 15:52:51,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713360016] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 15:52:51,389 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 15:52:51,389 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 15:52:51,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456655737] [2022-11-16 15:52:51,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 15:52:51,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 15:52:51,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:52:51,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 15:52:51,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 15:52:51,391 INFO L87 Difference]: Start difference. First operand 44 states and 51 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:52:51,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:52:51,521 INFO L93 Difference]: Finished difference Result 74 states and 85 transitions. [2022-11-16 15:52:51,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 15:52:51,522 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-16 15:52:51,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:52:51,523 INFO L225 Difference]: With dead ends: 74 [2022-11-16 15:52:51,523 INFO L226 Difference]: Without dead ends: 74 [2022-11-16 15:52:51,524 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 15:52:51,525 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 36 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 15:52:51,525 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 40 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 15:52:51,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2022-11-16 15:52:51,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 59. [2022-11-16 15:52:51,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 45 states have (on average 1.5777777777777777) internal successors, (71), 58 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:52:51,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 71 transitions. [2022-11-16 15:52:51,531 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 71 transitions. Word has length 8 [2022-11-16 15:52:51,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:52:51,531 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 71 transitions. [2022-11-16 15:52:51,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:52:51,532 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 71 transitions. [2022-11-16 15:52:51,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-16 15:52:51,533 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:52:51,533 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 15:52:51,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 15:52:51,533 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 15:52:51,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:52:51,534 INFO L85 PathProgramCache]: Analyzing trace with hash 866437451, now seen corresponding path program 1 times [2022-11-16 15:52:51,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:52:51,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810790498] [2022-11-16 15:52:51,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:52:51,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:52:51,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:52:51,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 15:52:51,851 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:52:51,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810790498] [2022-11-16 15:52:51,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810790498] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 15:52:51,852 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 15:52:51,852 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 15:52:51,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316006088] [2022-11-16 15:52:51,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 15:52:51,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 15:52:51,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:52:51,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 15:52:51,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-16 15:52:51,855 INFO L87 Difference]: Start difference. First operand 59 states and 71 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:52:51,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:52:51,947 INFO L93 Difference]: Finished difference Result 58 states and 70 transitions. [2022-11-16 15:52:51,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 15:52:51,948 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-16 15:52:51,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:52:51,952 INFO L225 Difference]: With dead ends: 58 [2022-11-16 15:52:51,952 INFO L226 Difference]: Without dead ends: 58 [2022-11-16 15:52:51,952 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-16 15:52:51,956 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 12 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 15:52:51,961 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 38 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 15:52:51,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2022-11-16 15:52:51,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2022-11-16 15:52:51,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 45 states have (on average 1.5555555555555556) internal successors, (70), 57 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:52:51,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 70 transitions. [2022-11-16 15:52:51,967 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 70 transitions. Word has length 10 [2022-11-16 15:52:51,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:52:51,968 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 70 transitions. [2022-11-16 15:52:51,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:52:51,968 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 70 transitions. [2022-11-16 15:52:51,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-16 15:52:51,969 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:52:51,969 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 15:52:51,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 15:52:51,969 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 15:52:51,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:52:51,970 INFO L85 PathProgramCache]: Analyzing trace with hash -1463010864, now seen corresponding path program 1 times [2022-11-16 15:52:51,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:52:51,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90614509] [2022-11-16 15:52:51,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:52:51,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:52:52,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:52:52,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 15:52:52,334 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:52:52,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90614509] [2022-11-16 15:52:52,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90614509] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 15:52:52,336 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 15:52:52,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 15:52:52,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694759829] [2022-11-16 15:52:52,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 15:52:52,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 15:52:52,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:52:52,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 15:52:52,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-16 15:52:52,339 INFO L87 Difference]: Start difference. First operand 58 states and 70 transitions. Second operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:52:52,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:52:52,512 INFO L93 Difference]: Finished difference Result 63 states and 72 transitions. [2022-11-16 15:52:52,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 15:52:52,513 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-16 15:52:52,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:52:52,513 INFO L225 Difference]: With dead ends: 63 [2022-11-16 15:52:52,513 INFO L226 Difference]: Without dead ends: 63 [2022-11-16 15:52:52,514 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-11-16 15:52:52,515 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 50 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 15:52:52,515 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 61 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 15:52:52,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2022-11-16 15:52:52,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 53. [2022-11-16 15:52:52,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 40 states have (on average 1.525) internal successors, (61), 52 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:52:52,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 61 transitions. [2022-11-16 15:52:52,520 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 61 transitions. Word has length 12 [2022-11-16 15:52:52,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:52:52,520 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 61 transitions. [2022-11-16 15:52:52,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:52:52,520 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 61 transitions. [2022-11-16 15:52:52,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-16 15:52:52,521 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:52:52,521 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 15:52:52,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 15:52:52,522 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 15:52:52,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:52:52,522 INFO L85 PathProgramCache]: Analyzing trace with hash -1462999879, now seen corresponding path program 1 times [2022-11-16 15:52:52,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:52:52,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712255485] [2022-11-16 15:52:52,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:52:52,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:52:52,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:52:52,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 15:52:52,620 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:52:52,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712255485] [2022-11-16 15:52:52,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712255485] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 15:52:52,621 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 15:52:52,621 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 15:52:52,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934244498] [2022-11-16 15:52:52,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 15:52:52,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 15:52:52,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:52:52,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 15:52:52,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 15:52:52,625 INFO L87 Difference]: Start difference. First operand 53 states and 61 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:52:52,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:52:52,747 INFO L93 Difference]: Finished difference Result 69 states and 77 transitions. [2022-11-16 15:52:52,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 15:52:52,751 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-16 15:52:52,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:52:52,752 INFO L225 Difference]: With dead ends: 69 [2022-11-16 15:52:52,753 INFO L226 Difference]: Without dead ends: 69 [2022-11-16 15:52:52,753 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 [2022-11-16 15:52:52,755 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 40 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 15:52:52,756 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 50 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 15:52:52,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2022-11-16 15:52:52,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 62. [2022-11-16 15:52:52,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 49 states have (on average 1.5714285714285714) internal successors, (77), 61 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:52:52,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 77 transitions. [2022-11-16 15:52:52,774 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 77 transitions. Word has length 12 [2022-11-16 15:52:52,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:52:52,774 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 77 transitions. [2022-11-16 15:52:52,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:52:52,774 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 77 transitions. [2022-11-16 15:52:52,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-16 15:52:52,775 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:52:52,775 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 15:52:52,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 15:52:52,776 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 15:52:52,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:52:52,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1098836238, now seen corresponding path program 1 times [2022-11-16 15:52:52,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:52:52,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300273613] [2022-11-16 15:52:52,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:52:52,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:52:52,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:52:52,949 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 15:52:52,949 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:52:52,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300273613] [2022-11-16 15:52:52,949 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300273613] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 15:52:52,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1513329429] [2022-11-16 15:52:52,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:52:52,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 15:52:52,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b401557a-b961-4012-9ec3-2d29f41357c4/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 15:52:52,954 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b401557a-b961-4012-9ec3-2d29f41357c4/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 15:52:52,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b401557a-b961-4012-9ec3-2d29f41357c4/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 15:52:53,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:52:53,050 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-16 15:52:53,055 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 15:52:53,199 INFO L350 Elim1Store]: Elim1 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 13 treesize of output 9 [2022-11-16 15:52:53,229 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 15:52:53,230 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 15:52:53,287 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 15:52:53,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1513329429] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 15:52:53,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1291699574] [2022-11-16 15:52:53,313 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2022-11-16 15:52:53,313 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 15:52:53,319 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 15:52:53,325 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 15:52:53,325 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 15:52:53,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:52:53,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:52:53,406 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:52:53,441 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:52:53,451 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:52:53,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:52:53,465 INFO L350 Elim1Store]: Elim1 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 30 treesize of output 21 [2022-11-16 15:52:53,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:52:53,494 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-16 15:52:53,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:52:53,506 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-16 15:52:53,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:52:53,520 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:52:53,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:52:53,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:52:53,553 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:52:53,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:52:53,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:52:53,567 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2022-11-16 15:52:53,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:52:53,582 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:52:53,933 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 15:52:55,950 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1291699574] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 15:52:55,951 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-16 15:52:55,951 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [3, 3, 3] total 13 [2022-11-16 15:52:55,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610086634] [2022-11-16 15:52:55,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 15:52:55,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 15:52:55,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:52:55,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 15:52:55,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2022-11-16 15:52:55,953 INFO L87 Difference]: Start difference. First operand 62 states and 77 transitions. Second operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:52:56,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:52:56,365 INFO L93 Difference]: Finished difference Result 78 states and 94 transitions. [2022-11-16 15:52:56,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 15:52:56,366 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-16 15:52:56,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:52:56,367 INFO L225 Difference]: With dead ends: 78 [2022-11-16 15:52:56,367 INFO L226 Difference]: Without dead ends: 64 [2022-11-16 15:52:56,368 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 28 SyntacticMatches, 6 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2022-11-16 15:52:56,368 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 12 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 15:52:56,369 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 46 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 15:52:56,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-11-16 15:52:56,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2022-11-16 15:52:56,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 51 states have (on average 1.5490196078431373) internal successors, (79), 63 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) [2022-11-16 15:52:56,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 79 transitions. [2022-11-16 15:52:56,375 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 79 transitions. Word has length 15 [2022-11-16 15:52:56,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:52:56,375 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 79 transitions. [2022-11-16 15:52:56,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:52:56,376 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 79 transitions. [2022-11-16 15:52:56,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-16 15:52:56,376 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:52:56,377 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 15:52:56,383 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b401557a-b961-4012-9ec3-2d29f41357c4/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-16 15:52:56,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b401557a-b961-4012-9ec3-2d29f41357c4/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 15:52:56,582 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 15:52:56,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:52:56,582 INFO L85 PathProgramCache]: Analyzing trace with hash 1447780460, now seen corresponding path program 1 times [2022-11-16 15:52:56,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:52:56,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927215742] [2022-11-16 15:52:56,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:52:56,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:52:56,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:52:56,732 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 15:52:56,732 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:52:56,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927215742] [2022-11-16 15:52:56,732 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927215742] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 15:52:56,732 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 15:52:56,733 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 15:52:56,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39629967] [2022-11-16 15:52:56,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 15:52:56,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 15:52:56,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:52:56,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 15:52:56,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 15:52:56,734 INFO L87 Difference]: Start difference. First operand 64 states and 79 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:52:56,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:52:56,836 INFO L93 Difference]: Finished difference Result 72 states and 79 transitions. [2022-11-16 15:52:56,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 15:52:56,837 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-16 15:52:56,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:52:56,837 INFO L225 Difference]: With dead ends: 72 [2022-11-16 15:52:56,837 INFO L226 Difference]: Without dead ends: 72 [2022-11-16 15:52:56,838 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-16 15:52:56,838 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 38 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 15:52:56,839 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 44 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 15:52:56,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2022-11-16 15:52:56,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 60. [2022-11-16 15:52:56,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 48 states have (on average 1.4583333333333333) internal successors, (70), 59 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:52:56,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 70 transitions. [2022-11-16 15:52:56,842 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 70 transitions. Word has length 15 [2022-11-16 15:52:56,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:52:56,842 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 70 transitions. [2022-11-16 15:52:56,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:52:56,843 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 70 transitions. [2022-11-16 15:52:56,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-16 15:52:56,843 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:52:56,844 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 15:52:56,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 15:52:56,844 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 15:52:56,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:52:56,845 INFO L85 PathProgramCache]: Analyzing trace with hash -1986639017, now seen corresponding path program 1 times [2022-11-16 15:52:56,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:52:56,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945114634] [2022-11-16 15:52:56,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:52:56,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:52:56,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:52:57,185 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 15:52:57,185 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:52:57,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945114634] [2022-11-16 15:52:57,186 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945114634] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 15:52:57,186 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 15:52:57,186 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 15:52:57,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450625760] [2022-11-16 15:52:57,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 15:52:57,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 15:52:57,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:52:57,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 15:52:57,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-16 15:52:57,188 INFO L87 Difference]: Start difference. First operand 60 states and 70 transitions. Second operand has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:52:57,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:52:57,351 INFO L93 Difference]: Finished difference Result 76 states and 84 transitions. [2022-11-16 15:52:57,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-16 15:52:57,351 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-11-16 15:52:57,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:52:57,352 INFO L225 Difference]: With dead ends: 76 [2022-11-16 15:52:57,352 INFO L226 Difference]: Without dead ends: 76 [2022-11-16 15:52:57,352 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2022-11-16 15:52:57,353 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 59 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 15:52:57,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 82 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 15:52:57,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2022-11-16 15:52:57,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 60. [2022-11-16 15:52:57,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 48 states have (on average 1.4375) internal successors, (69), 59 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:52:57,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 69 transitions. [2022-11-16 15:52:57,356 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 69 transitions. Word has length 19 [2022-11-16 15:52:57,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:52:57,356 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 69 transitions. [2022-11-16 15:52:57,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:52:57,357 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 69 transitions. [2022-11-16 15:52:57,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-16 15:52:57,357 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:52:57,357 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 15:52:57,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 15:52:57,358 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 15:52:57,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:52:57,358 INFO L85 PathProgramCache]: Analyzing trace with hash -1456267282, now seen corresponding path program 1 times [2022-11-16 15:52:57,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:52:57,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420487807] [2022-11-16 15:52:57,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:52:57,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:52:57,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:52:57,671 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 15:52:57,672 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:52:57,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420487807] [2022-11-16 15:52:57,672 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420487807] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 15:52:57,672 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 15:52:57,672 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 15:52:57,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496855270] [2022-11-16 15:52:57,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 15:52:57,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 15:52:57,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:52:57,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 15:52:57,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-16 15:52:57,674 INFO L87 Difference]: Start difference. First operand 60 states and 69 transitions. Second operand has 7 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 7 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:52:57,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:52:57,889 INFO L93 Difference]: Finished difference Result 75 states and 83 transitions. [2022-11-16 15:52:57,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-16 15:52:57,889 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 7 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-11-16 15:52:57,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:52:57,890 INFO L225 Difference]: With dead ends: 75 [2022-11-16 15:52:57,890 INFO L226 Difference]: Without dead ends: 75 [2022-11-16 15:52:57,891 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2022-11-16 15:52:57,891 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 53 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 15:52:57,891 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 61 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 15:52:57,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2022-11-16 15:52:57,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 60. [2022-11-16 15:52:57,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 48 states have (on average 1.4166666666666667) internal successors, (68), 59 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:52:57,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 68 transitions. [2022-11-16 15:52:57,894 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 68 transitions. Word has length 20 [2022-11-16 15:52:57,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:52:57,895 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 68 transitions. [2022-11-16 15:52:57,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 7 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:52:57,895 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 68 transitions. [2022-11-16 15:52:57,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-16 15:52:57,896 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:52:57,896 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] [2022-11-16 15:52:57,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-16 15:52:57,896 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 15:52:57,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:52:57,897 INFO L85 PathProgramCache]: Analyzing trace with hash 2100354617, now seen corresponding path program 1 times [2022-11-16 15:52:57,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:52:57,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662935288] [2022-11-16 15:52:57,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:52:57,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:52:57,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:52:58,309 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 15:52:58,310 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:52:58,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662935288] [2022-11-16 15:52:58,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662935288] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 15:52:58,310 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 15:52:58,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 15:52:58,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209921029] [2022-11-16 15:52:58,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 15:52:58,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 15:52:58,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:52:58,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 15:52:58,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-16 15:52:58,312 INFO L87 Difference]: Start difference. First operand 60 states and 68 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 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) [2022-11-16 15:52:58,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:52:58,486 INFO L93 Difference]: Finished difference Result 61 states and 68 transitions. [2022-11-16 15:52:58,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 15:52:58,486 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 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 [2022-11-16 15:52:58,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:52:58,487 INFO L225 Difference]: With dead ends: 61 [2022-11-16 15:52:58,487 INFO L226 Difference]: Without dead ends: 61 [2022-11-16 15:52:58,487 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2022-11-16 15:52:58,488 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 26 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 15:52:58,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 53 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 15:52:58,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-11-16 15:52:58,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 60. [2022-11-16 15:52:58,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 48 states have (on average 1.3958333333333333) internal successors, (67), 59 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:52:58,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 67 transitions. [2022-11-16 15:52:58,491 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 67 transitions. Word has length 21 [2022-11-16 15:52:58,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:52:58,491 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 67 transitions. [2022-11-16 15:52:58,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 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) [2022-11-16 15:52:58,491 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 67 transitions. [2022-11-16 15:52:58,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-16 15:52:58,492 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:52:58,492 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] [2022-11-16 15:52:58,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-16 15:52:58,492 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 15:52:58,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:52:58,493 INFO L85 PathProgramCache]: Analyzing trace with hash 1013749287, now seen corresponding path program 1 times [2022-11-16 15:52:58,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:52:58,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206212560] [2022-11-16 15:52:58,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:52:58,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:52:58,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:52:58,735 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 15:52:58,735 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:52:58,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206212560] [2022-11-16 15:52:58,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206212560] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 15:52:58,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1909899913] [2022-11-16 15:52:58,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:52:58,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 15:52:58,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b401557a-b961-4012-9ec3-2d29f41357c4/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 15:52:58,739 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b401557a-b961-4012-9ec3-2d29f41357c4/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 15:52:58,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b401557a-b961-4012-9ec3-2d29f41357c4/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 15:52:58,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:52:58,887 INFO L263 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-16 15:52:58,889 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 15:52:58,896 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:52:58,950 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-16 15:52:58,951 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:52:58,975 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:52:59,034 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 15:52:59,034 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 16 [2022-11-16 15:52:59,081 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 15:52:59,081 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 15:52:59,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1909899913] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 15:52:59,082 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 15:52:59,082 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 16 [2022-11-16 15:52:59,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143538164] [2022-11-16 15:52:59,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 15:52:59,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 15:52:59,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:52:59,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 15:52:59,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2022-11-16 15:52:59,084 INFO L87 Difference]: Start difference. First operand 60 states and 67 transitions. Second operand has 8 states, 8 states have (on average 2.75) internal successors, (22), 8 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) [2022-11-16 15:52:59,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:52:59,359 INFO L93 Difference]: Finished difference Result 68 states and 74 transitions. [2022-11-16 15:52:59,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 15:52:59,360 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.75) internal successors, (22), 8 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 [2022-11-16 15:52:59,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:52:59,360 INFO L225 Difference]: With dead ends: 68 [2022-11-16 15:52:59,360 INFO L226 Difference]: Without dead ends: 67 [2022-11-16 15:52:59,361 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=438, Unknown=0, NotChecked=0, Total=506 [2022-11-16 15:52:59,361 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 29 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 15:52:59,362 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 90 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 15:52:59,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-11-16 15:52:59,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 60. [2022-11-16 15:52:59,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 48 states have (on average 1.375) internal successors, (66), 59 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:52:59,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 66 transitions. [2022-11-16 15:52:59,364 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 66 transitions. Word has length 22 [2022-11-16 15:52:59,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:52:59,364 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 66 transitions. [2022-11-16 15:52:59,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.75) internal successors, (22), 8 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) [2022-11-16 15:52:59,364 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 66 transitions. [2022-11-16 15:52:59,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-16 15:52:59,365 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:52:59,365 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] [2022-11-16 15:52:59,376 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b401557a-b961-4012-9ec3-2d29f41357c4/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-16 15:52:59,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b401557a-b961-4012-9ec3-2d29f41357c4/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-16 15:52:59,571 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 15:52:59,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:52:59,572 INFO L85 PathProgramCache]: Analyzing trace with hash 939258027, now seen corresponding path program 1 times [2022-11-16 15:52:59,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:52:59,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578612567] [2022-11-16 15:52:59,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:52:59,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:52:59,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:52:59,790 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 15:52:59,791 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:52:59,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578612567] [2022-11-16 15:52:59,791 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578612567] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 15:52:59,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [508542926] [2022-11-16 15:52:59,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:52:59,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 15:52:59,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b401557a-b961-4012-9ec3-2d29f41357c4/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 15:52:59,793 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b401557a-b961-4012-9ec3-2d29f41357c4/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 15:52:59,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b401557a-b961-4012-9ec3-2d29f41357c4/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 15:52:59,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:52:59,911 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 27 conjunts are in the unsatisfiable core [2022-11-16 15:52:59,917 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 15:52:59,928 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:52:59,990 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-16 15:52:59,990 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1 case distinctions, treesize of input 11 treesize of output 11 [2022-11-16 15:53:00,017 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:00,059 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-16 15:53:00,059 INFO L350 Elim1Store]: Elim1 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 28 [2022-11-16 15:53:00,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:00,105 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 25 [2022-11-16 15:53:00,186 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:00,189 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 15:53:00,189 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 15 [2022-11-16 15:53:00,202 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 15:53:00,203 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 15:53:00,424 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 15:53:00,424 INFO L350 Elim1Store]: Elim1 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 19 treesize of output 20 [2022-11-16 15:53:00,437 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 15:53:00,437 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 33 [2022-11-16 15:53:00,444 INFO L350 Elim1Store]: Elim1 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 20 treesize of output 18 [2022-11-16 15:53:00,622 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 15:53:00,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [508542926] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 15:53:00,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [342135633] [2022-11-16 15:53:00,625 INFO L159 IcfgInterpreter]: Started Sifa with 20 locations of interest [2022-11-16 15:53:00,625 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 15:53:00,625 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 15:53:00,626 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 15:53:00,626 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 15:53:00,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:00,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:00,654 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:00,676 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:00,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:00,686 INFO L350 Elim1Store]: Elim1 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 30 treesize of output 21 [2022-11-16 15:53:00,703 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:00,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:00,723 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-16 15:53:00,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:00,737 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-16 15:53:00,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:00,749 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:00,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:00,774 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:00,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:00,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:00,790 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2022-11-16 15:53:00,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:00,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:00,808 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:00,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:00,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:00,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:00,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:00,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:00,859 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:00,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:00,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:00,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:00,893 INFO L350 Elim1Store]: Elim1 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 39 treesize of output 44 [2022-11-16 15:53:00,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:00,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:00,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:00,911 INFO L350 Elim1Store]: Elim1 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 37 treesize of output 42 [2022-11-16 15:53:00,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:00,926 INFO L350 Elim1Store]: Elim1 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 30 treesize of output 21 [2022-11-16 15:53:00,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:00,957 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:00,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:01,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:01,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:01,004 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 47 [2022-11-16 15:53:01,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:01,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:01,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:01,033 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 45 [2022-11-16 15:53:01,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:01,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:01,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:01,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:01,092 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 58 [2022-11-16 15:53:01,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:01,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:01,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:01,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:01,120 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 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 [2022-11-16 15:53:01,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:01,143 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:01,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:01,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:01,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:01,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:01,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:01,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:01,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:01,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:01,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:01,236 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:01,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:01,267 INFO L350 Elim1Store]: Elim1 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 30 treesize of output 21 [2022-11-16 15:53:01,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:01,285 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:01,311 INFO L321 Elim1Store]: treesize reduction 48, result has 23.8 percent of original size [2022-11-16 15:53:01,312 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 186 treesize of output 140 [2022-11-16 15:53:01,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:01,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:01,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:01,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:01,338 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 74 [2022-11-16 15:53:01,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:01,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:01,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:01,389 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:01,395 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:01,412 INFO L321 Elim1Store]: treesize reduction 49, result has 12.5 percent of original size [2022-11-16 15:53:01,412 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 5 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 195 treesize of output 152 [2022-11-16 15:53:01,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:01,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:01,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:01,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:01,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:01,445 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 86 [2022-11-16 15:53:01,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:01,471 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:01,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:01,515 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:01,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:01,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:01,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:01,543 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:01,545 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:01,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:01,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:01,549 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:01,590 INFO L321 Elim1Store]: treesize reduction 74, result has 18.7 percent of original size [2022-11-16 15:53:01,591 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 7 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 20 case distinctions, treesize of input 204 treesize of output 164 [2022-11-16 15:53:01,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:01,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:01,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:01,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:01,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:01,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:01,635 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 13 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 100 [2022-11-16 15:53:02,065 INFO L321 Elim1Store]: treesize reduction 254, result has 14.2 percent of original size [2022-11-16 15:53:02,066 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 14 case distinctions, treesize of input 862 treesize of output 848 [2022-11-16 15:53:02,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:02,220 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:02,221 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:02,347 INFO L321 Elim1Store]: treesize reduction 422, result has 11.0 percent of original size [2022-11-16 15:53:02,347 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 4 disjoint index pairs (out of 28 index pairs), introduced 10 new quantified variables, introduced 33 case distinctions, treesize of input 943 treesize of output 591 [2022-11-16 15:53:02,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:02,381 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:02,382 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:02,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:02,568 INFO L321 Elim1Store]: treesize reduction 426, result has 10.1 percent of original size [2022-11-16 15:53:02,569 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 4 disjoint index pairs (out of 28 index pairs), introduced 12 new quantified variables, introduced 32 case distinctions, treesize of input 943 treesize of output 785 [2022-11-16 15:53:02,630 INFO L321 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2022-11-16 15:53:02,631 INFO L350 Elim1Store]: Elim1 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 947 treesize of output 930 [2022-11-16 15:53:02,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:02,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:02,764 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:02,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:02,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:02,777 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:02,784 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:02,933 INFO L321 Elim1Store]: treesize reduction 474, result has 8.7 percent of original size [2022-11-16 15:53:02,934 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 7 disjoint index pairs (out of 36 index pairs), introduced 11 new quantified variables, introduced 39 case distinctions, treesize of input 952 treesize of output 603 [2022-11-16 15:53:02,985 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:02,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:02,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:02,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:02,992 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:02,994 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:03,131 INFO L321 Elim1Store]: treesize reduction 486, result has 7.8 percent of original size [2022-11-16 15:53:03,132 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 4 disjoint index pairs (out of 36 index pairs), introduced 13 new quantified variables, introduced 39 case distinctions, treesize of input 952 treesize of output 797 [2022-11-16 15:53:03,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:03,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:03,180 INFO L350 Elim1Store]: Elim1 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 951 treesize of output 930 [2022-11-16 15:53:03,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:03,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:03,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:03,373 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:03,376 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:03,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:03,392 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:03,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:03,397 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:03,651 INFO L321 Elim1Store]: treesize reduction 552, result has 8.9 percent of original size [2022-11-16 15:53:03,652 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 9 disjoint index pairs (out of 45 index pairs), introduced 12 new quantified variables, introduced 47 case distinctions, treesize of input 961 treesize of output 615 [2022-11-16 15:53:03,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:03,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:03,682 INFO L350 Elim1Store]: Elim1 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 951 treesize of output 930 [2022-11-16 15:53:03,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:03,703 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:03,704 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:03,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:03,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:03,709 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:03,710 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:03,877 INFO L321 Elim1Store]: treesize reduction 576, result has 8.0 percent of original size [2022-11-16 15:53:03,878 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 6 disjoint index pairs (out of 45 index pairs), introduced 14 new quantified variables, introduced 47 case distinctions, treesize of input 963 treesize of output 811 [2022-11-16 15:53:03,988 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:03,993 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:04,001 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:04,006 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:04,012 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:04,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:04,027 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-16 15:53:04,038 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:04,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:04,047 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-16 15:53:04,063 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:04,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:04,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:04,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:04,076 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 15:53:04,076 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 32 treesize of output 34 [2022-11-16 15:53:04,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:04,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:04,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:04,095 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 15:53:04,095 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 30 treesize of output 32 [2022-11-16 15:53:04,285 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:04,422 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-16 15:53:04,422 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:04,541 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-16 15:53:04,541 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:04,663 INFO L321 Elim1Store]: treesize reduction 30, result has 59.5 percent of original size [2022-11-16 15:53:04,663 INFO L350 Elim1Store]: Elim1 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 169 treesize of output 203 [2022-11-16 15:53:04,906 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:04,920 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:04,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:04,952 INFO L350 Elim1Store]: Elim1 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 12 treesize of output 1 [2022-11-16 15:53:04,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:04,975 INFO L350 Elim1Store]: Elim1 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 12 treesize of output 1 [2022-11-16 15:53:05,074 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-16 15:53:05,075 INFO L350 Elim1Store]: Elim1 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 367 treesize of output 354 [2022-11-16 15:53:05,103 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-16 15:53:05,103 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 355 treesize of output 352 [2022-11-16 15:53:05,140 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-16 15:53:05,141 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 347 treesize of output 344 [2022-11-16 15:53:05,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:05,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:05,368 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:05,375 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 15:53:05,375 INFO L350 Elim1Store]: Elim1 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 3 case distinctions, treesize of input 392 treesize of output 381 [2022-11-16 15:53:05,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:05,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:05,399 INFO L350 Elim1Store]: Elim1 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 383 treesize of output 362 [2022-11-16 15:53:05,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:05,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:05,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:05,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:05,425 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:05,431 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 15:53:05,432 INFO L350 Elim1Store]: Elim1 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 3 case distinctions, treesize of input 384 treesize of output 373 [2022-11-16 15:53:05,550 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 15:53:07,119 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2181#(and (= |ULTIMATE.start_main_~y~0#1.offset| 0) (not (= |ULTIMATE.start_main_old_#valid#1| |#valid|)) (= |ULTIMATE.start_main_~list~0#1.offset| 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~list~0#1.base| 0) (= |ULTIMATE.start_main_#res#1| 0) (= |#NULL.base| 0))' at error location [2022-11-16 15:53:07,119 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-16 15:53:07,119 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 15:53:07,119 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 19 [2022-11-16 15:53:07,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139939625] [2022-11-16 15:53:07,119 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 15:53:07,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-16 15:53:07,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:53:07,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-16 15:53:07,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=1233, Unknown=2, NotChecked=0, Total=1406 [2022-11-16 15:53:07,121 INFO L87 Difference]: Start difference. First operand 60 states and 66 transitions. Second operand has 20 states, 20 states have (on average 2.45) internal successors, (49), 19 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:53:07,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:53:07,615 INFO L93 Difference]: Finished difference Result 97 states and 106 transitions. [2022-11-16 15:53:07,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 15:53:07,616 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.45) internal successors, (49), 19 states have internal predecessors, (49), 0 states have call successors, (0), 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 [2022-11-16 15:53:07,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:53:07,617 INFO L225 Difference]: With dead ends: 97 [2022-11-16 15:53:07,617 INFO L226 Difference]: Without dead ends: 97 [2022-11-16 15:53:07,620 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 43 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 604 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=306, Invalid=1854, Unknown=2, NotChecked=0, Total=2162 [2022-11-16 15:53:07,622 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 149 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 194 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 15:53:07,623 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 137 Invalid, 470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 251 Invalid, 0 Unknown, 194 Unchecked, 0.2s Time] [2022-11-16 15:53:07,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2022-11-16 15:53:07,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 62. [2022-11-16 15:53:07,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 50 states have (on average 1.36) internal successors, (68), 61 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:53:07,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 68 transitions. [2022-11-16 15:53:07,626 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 68 transitions. Word has length 22 [2022-11-16 15:53:07,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:53:07,628 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 68 transitions. [2022-11-16 15:53:07,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.45) internal successors, (49), 19 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:53:07,628 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 68 transitions. [2022-11-16 15:53:07,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-16 15:53:07,630 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:53:07,630 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 15:53:07,640 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b401557a-b961-4012-9ec3-2d29f41357c4/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-16 15:53:07,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b401557a-b961-4012-9ec3-2d29f41357c4/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-16 15:53:07,836 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 15:53:07,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:53:07,836 INFO L85 PathProgramCache]: Analyzing trace with hash 939256631, now seen corresponding path program 1 times [2022-11-16 15:53:07,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:53:07,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235145113] [2022-11-16 15:53:07,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:53:07,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:53:07,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:53:08,119 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 15:53:08,119 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:53:08,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235145113] [2022-11-16 15:53:08,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235145113] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 15:53:08,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [552571350] [2022-11-16 15:53:08,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:53:08,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 15:53:08,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b401557a-b961-4012-9ec3-2d29f41357c4/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 15:53:08,123 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b401557a-b961-4012-9ec3-2d29f41357c4/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 15:53:08,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b401557a-b961-4012-9ec3-2d29f41357c4/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-16 15:53:08,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:53:08,241 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 30 conjunts are in the unsatisfiable core [2022-11-16 15:53:08,243 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 15:53:08,246 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:08,263 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-16 15:53:08,264 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:08,289 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:08,323 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-16 15:53:08,323 INFO L350 Elim1Store]: Elim1 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 29 [2022-11-16 15:53:08,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:08,359 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 26 [2022-11-16 15:53:08,443 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:08,445 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 15:53:08,446 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 16 [2022-11-16 15:53:08,470 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:08,475 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 15:53:08,475 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 15:53:08,783 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 15:53:08,783 INFO L350 Elim1Store]: Elim1 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 49 treesize of output 53 [2022-11-16 15:53:08,915 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 15:53:08,916 INFO L350 Elim1Store]: Elim1 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 18 treesize of output 19 [2022-11-16 15:53:08,923 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 15:53:08,924 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 30 [2022-11-16 15:53:08,929 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-11-16 15:53:09,017 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 15:53:09,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [552571350] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 15:53:09,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1493074712] [2022-11-16 15:53:09,020 INFO L159 IcfgInterpreter]: Started Sifa with 19 locations of interest [2022-11-16 15:53:09,021 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 15:53:09,021 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 15:53:09,021 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 15:53:09,021 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 15:53:09,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:09,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:09,060 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:09,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:09,077 INFO L350 Elim1Store]: Elim1 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 30 treesize of output 21 [2022-11-16 15:53:09,086 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:09,093 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:09,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:09,111 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-16 15:53:09,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:09,121 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:09,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:09,131 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-16 15:53:09,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:09,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:09,151 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:09,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:09,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:09,163 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2022-11-16 15:53:09,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:09,174 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:09,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:09,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:09,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:09,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:09,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:09,220 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:09,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:09,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:09,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:09,245 INFO L350 Elim1Store]: Elim1 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 39 treesize of output 44 [2022-11-16 15:53:09,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:09,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:09,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:09,262 INFO L350 Elim1Store]: Elim1 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 37 treesize of output 42 [2022-11-16 15:53:09,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:09,277 INFO L350 Elim1Store]: Elim1 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 30 treesize of output 21 [2022-11-16 15:53:09,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:09,301 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:09,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:09,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:09,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:09,316 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 47 [2022-11-16 15:53:09,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:09,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:09,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:09,332 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 45 [2022-11-16 15:53:09,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:09,365 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:09,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:09,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:09,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:09,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:09,383 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 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 [2022-11-16 15:53:09,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:09,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:09,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:09,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:09,410 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 58 [2022-11-16 15:53:09,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:09,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:09,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:09,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:09,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:09,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:09,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:09,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:09,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:09,479 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:09,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:09,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:09,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:09,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:09,528 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:09,552 INFO L321 Elim1Store]: treesize reduction 52, result has 26.8 percent of original size [2022-11-16 15:53:09,553 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 239 treesize of output 189 [2022-11-16 15:53:09,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:09,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:09,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:09,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:09,578 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-11-16 15:53:09,579 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 8 new quantified variables, introduced 3 case distinctions, treesize of input 153 treesize of output 141 [2022-11-16 15:53:09,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:09,599 INFO L350 Elim1Store]: Elim1 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 30 treesize of output 21 [2022-11-16 15:53:09,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:09,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:09,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:09,635 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:09,636 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:09,652 INFO L321 Elim1Store]: treesize reduction 49, result has 12.5 percent of original size [2022-11-16 15:53:09,653 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 5 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 195 treesize of output 152 [2022-11-16 15:53:09,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:09,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:09,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:09,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:09,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:09,679 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 86 [2022-11-16 15:53:09,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:09,700 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:09,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:09,742 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:09,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:09,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:09,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:09,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:09,763 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:09,764 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:09,765 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:09,799 INFO L321 Elim1Store]: treesize reduction 74, result has 18.7 percent of original size [2022-11-16 15:53:09,800 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 8 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 20 case distinctions, treesize of input 204 treesize of output 164 [2022-11-16 15:53:09,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:09,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:09,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:09,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:09,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:09,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:09,828 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 13 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 100 [2022-11-16 15:53:10,188 INFO L321 Elim1Store]: treesize reduction 226, result has 14.4 percent of original size [2022-11-16 15:53:10,188 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 14 case distinctions, treesize of input 692 treesize of output 690 [2022-11-16 15:53:10,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:10,323 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:10,324 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:10,380 INFO L321 Elim1Store]: treesize reduction 104, result has 17.5 percent of original size [2022-11-16 15:53:10,380 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 4 disjoint index pairs (out of 28 index pairs), introduced 10 new quantified variables, introduced 31 case distinctions, treesize of input 765 treesize of output 505 [2022-11-16 15:53:10,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:10,428 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:10,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:10,431 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:10,511 INFO L321 Elim1Store]: treesize reduction 200, result has 14.5 percent of original size [2022-11-16 15:53:10,511 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 5 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 24 case distinctions, treesize of input 765 treesize of output 751 [2022-11-16 15:53:10,565 INFO L321 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2022-11-16 15:53:10,565 INFO L350 Elim1Store]: Elim1 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 769 treesize of output 752 [2022-11-16 15:53:10,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:10,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:10,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:10,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:10,681 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:10,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:10,684 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:10,685 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:10,747 INFO L321 Elim1Store]: treesize reduction 112, result has 11.8 percent of original size [2022-11-16 15:53:10,747 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 5 disjoint index pairs (out of 36 index pairs), introduced 11 new quantified variables, introduced 37 case distinctions, treesize of input 774 treesize of output 517 [2022-11-16 15:53:10,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:10,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:10,784 INFO L350 Elim1Store]: Elim1 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 773 treesize of output 752 [2022-11-16 15:53:10,804 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:10,806 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:10,807 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:10,862 INFO L321 Elim1Store]: treesize reduction 220, result has 10.9 percent of original size [2022-11-16 15:53:10,862 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 6 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 31 case distinctions, treesize of input 774 treesize of output 763 [2022-11-16 15:53:11,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:11,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:11,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:11,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:11,014 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:11,015 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:11,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:11,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:11,020 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:11,022 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:11,102 INFO L321 Elim1Store]: treesize reduction 146, result has 14.1 percent of original size [2022-11-16 15:53:11,103 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 7 disjoint index pairs (out of 45 index pairs), introduced 12 new quantified variables, introduced 45 case distinctions, treesize of input 783 treesize of output 529 [2022-11-16 15:53:11,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:11,136 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:11,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:11,139 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:11,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:11,141 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:11,143 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:11,227 INFO L321 Elim1Store]: treesize reduction 272, result has 11.7 percent of original size [2022-11-16 15:53:11,228 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 7 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 39 case distinctions, treesize of input 785 treesize of output 777 [2022-11-16 15:53:11,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:11,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:11,253 INFO L350 Elim1Store]: Elim1 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 773 treesize of output 752 [2022-11-16 15:53:11,332 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:11,337 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:11,345 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:11,350 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:11,356 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:11,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:11,370 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-16 15:53:11,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:11,379 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-16 15:53:11,387 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:11,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:11,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:11,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:11,406 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 15:53:11,406 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 32 treesize of output 34 [2022-11-16 15:53:11,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:11,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:11,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:11,423 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 15:53:11,423 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 30 treesize of output 32 [2022-11-16 15:53:11,432 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:11,605 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:11,713 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-16 15:53:11,713 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:11,814 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-16 15:53:11,814 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:11,909 INFO L321 Elim1Store]: treesize reduction 30, result has 59.5 percent of original size [2022-11-16 15:53:11,910 INFO L350 Elim1Store]: Elim1 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 169 treesize of output 203 [2022-11-16 15:53:12,039 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:12,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:12,049 INFO L350 Elim1Store]: Elim1 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 12 treesize of output 1 [2022-11-16 15:53:12,101 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-16 15:53:12,101 INFO L350 Elim1Store]: Elim1 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 201 treesize of output 196 [2022-11-16 15:53:12,125 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-16 15:53:12,125 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 193 treesize of output 202 [2022-11-16 15:53:12,150 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-16 15:53:12,150 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 189 treesize of output 198 [2022-11-16 15:53:12,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:12,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:12,703 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:12,715 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 15:53:12,716 INFO L350 Elim1Store]: Elim1 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 3 case distinctions, treesize of input 1276 treesize of output 1209 [2022-11-16 15:53:12,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:12,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:12,767 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:12,774 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 15:53:12,775 INFO L350 Elim1Store]: Elim1 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 3 case distinctions, treesize of input 1244 treesize of output 1177 [2022-11-16 15:53:12,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:12,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:12,828 INFO L350 Elim1Store]: Elim1 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 1211 treesize of output 1158 [2022-11-16 15:53:13,111 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 15:53:14,701 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2530#(and (not (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1)) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-16 15:53:14,701 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-16 15:53:14,701 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 15:53:14,702 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 9] total 21 [2022-11-16 15:53:14,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045435265] [2022-11-16 15:53:14,702 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 15:53:14,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-16 15:53:14,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:53:14,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-16 15:53:14,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=187, Invalid=1292, Unknown=3, NotChecked=0, Total=1482 [2022-11-16 15:53:14,704 INFO L87 Difference]: Start difference. First operand 62 states and 68 transitions. Second operand has 22 states, 21 states have (on average 2.3333333333333335) internal successors, (49), 22 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:53:15,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:53:15,455 INFO L93 Difference]: Finished difference Result 80 states and 85 transitions. [2022-11-16 15:53:15,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 15:53:15,456 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 2.3333333333333335) internal successors, (49), 22 states have internal predecessors, (49), 0 states have call successors, (0), 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 [2022-11-16 15:53:15,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:53:15,456 INFO L225 Difference]: With dead ends: 80 [2022-11-16 15:53:15,456 INFO L226 Difference]: Without dead ends: 80 [2022-11-16 15:53:15,458 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 37 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 615 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=354, Invalid=2093, Unknown=3, NotChecked=0, Total=2450 [2022-11-16 15:53:15,458 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 130 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 95 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 15:53:15,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 105 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 337 Invalid, 0 Unknown, 95 Unchecked, 0.3s Time] [2022-11-16 15:53:15,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2022-11-16 15:53:15,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 64. [2022-11-16 15:53:15,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 52 states have (on average 1.3846153846153846) internal successors, (72), 63 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:53:15,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 72 transitions. [2022-11-16 15:53:15,461 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 72 transitions. Word has length 22 [2022-11-16 15:53:15,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:53:15,461 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 72 transitions. [2022-11-16 15:53:15,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 2.3333333333333335) internal successors, (49), 22 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:53:15,462 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 72 transitions. [2022-11-16 15:53:15,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-16 15:53:15,463 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:53:15,463 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 15:53:15,475 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b401557a-b961-4012-9ec3-2d29f41357c4/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-16 15:53:15,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b401557a-b961-4012-9ec3-2d29f41357c4/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-16 15:53:15,669 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 15:53:15,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:53:15,670 INFO L85 PathProgramCache]: Analyzing trace with hash 939256632, now seen corresponding path program 1 times [2022-11-16 15:53:15,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:53:15,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112030345] [2022-11-16 15:53:15,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:53:15,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:53:15,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:53:16,110 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 15:53:16,110 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:53:16,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112030345] [2022-11-16 15:53:16,110 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112030345] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 15:53:16,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [862260019] [2022-11-16 15:53:16,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:53:16,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 15:53:16,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b401557a-b961-4012-9ec3-2d29f41357c4/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 15:53:16,115 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b401557a-b961-4012-9ec3-2d29f41357c4/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 15:53:16,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b401557a-b961-4012-9ec3-2d29f41357c4/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-16 15:53:16,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:53:16,239 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 39 conjunts are in the unsatisfiable core [2022-11-16 15:53:16,246 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 15:53:16,253 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:16,257 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:16,293 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-16 15:53:16,293 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:16,303 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:16,327 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:16,337 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:16,374 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-16 15:53:16,374 INFO L350 Elim1Store]: Elim1 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 37 [2022-11-16 15:53:16,378 INFO L350 Elim1Store]: Elim1 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 18 treesize of output 20 [2022-11-16 15:53:16,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:16,419 INFO L350 Elim1Store]: Elim1 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 21 treesize of output 20 [2022-11-16 15:53:16,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:16,426 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 26 [2022-11-16 15:53:16,495 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:16,496 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-16 15:53:16,501 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:16,503 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 15:53:16,504 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 16 [2022-11-16 15:53:16,527 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 15:53:16,528 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 15:53:16,902 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 15:53:16,902 INFO L350 Elim1Store]: Elim1 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 37 treesize of output 38 [2022-11-16 15:53:16,910 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 15:53:16,911 INFO L350 Elim1Store]: Elim1 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 29 treesize of output 30 [2022-11-16 15:53:16,922 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 15:53:16,922 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 52 [2022-11-16 15:53:16,941 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 15:53:16,942 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 82 treesize of output 78 [2022-11-16 15:53:16,950 INFO L350 Elim1Store]: Elim1 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 34 treesize of output 30 [2022-11-16 15:53:16,955 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 58 [2022-11-16 15:53:17,021 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 15:53:17,022 INFO L350 Elim1Store]: Elim1 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 18 treesize of output 19 [2022-11-16 15:53:17,025 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:17,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:17,028 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2022-11-16 15:53:17,281 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 15:53:17,281 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [862260019] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 15:53:17,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [454346396] [2022-11-16 15:53:17,283 INFO L159 IcfgInterpreter]: Started Sifa with 19 locations of interest [2022-11-16 15:53:17,283 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 15:53:17,284 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 15:53:17,284 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 15:53:17,284 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 15:53:17,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:17,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:17,311 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:17,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:17,331 INFO L350 Elim1Store]: Elim1 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 30 treesize of output 21 [2022-11-16 15:53:17,339 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:17,346 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:17,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:17,362 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-16 15:53:17,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:17,372 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:17,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:17,381 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-16 15:53:17,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:17,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:17,403 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2022-11-16 15:53:17,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:17,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:17,416 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:17,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:17,426 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:17,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:17,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:17,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:17,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:17,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:17,465 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:17,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:17,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:17,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:17,489 INFO L350 Elim1Store]: Elim1 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 39 treesize of output 44 [2022-11-16 15:53:17,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:17,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:17,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:17,504 INFO L350 Elim1Store]: Elim1 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 37 treesize of output 42 [2022-11-16 15:53:17,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:17,520 INFO L350 Elim1Store]: Elim1 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 30 treesize of output 21 [2022-11-16 15:53:17,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:17,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:17,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:17,552 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 47 [2022-11-16 15:53:17,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:17,565 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:17,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:17,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:17,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:17,583 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 45 [2022-11-16 15:53:17,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:17,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:17,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:17,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:17,637 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 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 [2022-11-16 15:53:17,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:17,649 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:17,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:17,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:17,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:17,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:17,664 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 58 [2022-11-16 15:53:17,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:17,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:17,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:17,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:17,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:17,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:17,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:17,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:17,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:17,725 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:17,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:17,751 INFO L350 Elim1Store]: Elim1 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 30 treesize of output 21 [2022-11-16 15:53:17,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:17,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:17,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:17,767 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:17,792 INFO L321 Elim1Store]: treesize reduction 52, result has 26.8 percent of original size [2022-11-16 15:53:17,793 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 239 treesize of output 189 [2022-11-16 15:53:17,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:17,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:17,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:17,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:17,819 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-11-16 15:53:17,819 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 8 new quantified variables, introduced 3 case distinctions, treesize of input 153 treesize of output 141 [2022-11-16 15:53:17,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:17,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:17,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:17,864 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:17,865 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:17,883 INFO L321 Elim1Store]: treesize reduction 55, result has 19.1 percent of original size [2022-11-16 15:53:17,883 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 5 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 248 treesize of output 201 [2022-11-16 15:53:17,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:17,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:17,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:17,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:17,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:17,912 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-11-16 15:53:17,913 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 9 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 3 case distinctions, treesize of input 162 treesize of output 153 [2022-11-16 15:53:17,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:17,942 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:17,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:17,980 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:17,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:17,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:17,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:17,999 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:18,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:18,001 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:18,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:18,003 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:18,030 INFO L321 Elim1Store]: treesize reduction 74, result has 18.7 percent of original size [2022-11-16 15:53:18,031 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 8 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 20 case distinctions, treesize of input 204 treesize of output 164 [2022-11-16 15:53:18,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:18,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:18,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:18,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:18,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:18,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:18,059 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 13 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 100 [2022-11-16 15:53:18,443 INFO L321 Elim1Store]: treesize reduction 226, result has 14.4 percent of original size [2022-11-16 15:53:18,444 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 14 case distinctions, treesize of input 692 treesize of output 690 [2022-11-16 15:53:18,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:18,576 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:18,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:18,578 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:18,634 INFO L321 Elim1Store]: treesize reduction 104, result has 17.5 percent of original size [2022-11-16 15:53:18,635 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 4 disjoint index pairs (out of 28 index pairs), introduced 10 new quantified variables, introduced 31 case distinctions, treesize of input 765 treesize of output 505 [2022-11-16 15:53:18,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:18,664 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:18,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:18,667 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:18,750 INFO L321 Elim1Store]: treesize reduction 200, result has 14.5 percent of original size [2022-11-16 15:53:18,750 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 5 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 24 case distinctions, treesize of input 765 treesize of output 751 [2022-11-16 15:53:18,803 INFO L321 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2022-11-16 15:53:18,804 INFO L350 Elim1Store]: Elim1 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 769 treesize of output 752 [2022-11-16 15:53:18,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:18,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:18,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:18,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:18,898 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:18,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:18,901 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:18,902 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:18,973 INFO L321 Elim1Store]: treesize reduction 112, result has 11.8 percent of original size [2022-11-16 15:53:18,973 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 4 disjoint index pairs (out of 36 index pairs), introduced 11 new quantified variables, introduced 37 case distinctions, treesize of input 774 treesize of output 517 [2022-11-16 15:53:19,003 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:19,004 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:19,005 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:19,066 INFO L321 Elim1Store]: treesize reduction 220, result has 10.9 percent of original size [2022-11-16 15:53:19,067 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 6 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 31 case distinctions, treesize of input 774 treesize of output 763 [2022-11-16 15:53:19,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:19,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:19,091 INFO L350 Elim1Store]: Elim1 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 773 treesize of output 752 [2022-11-16 15:53:19,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:19,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:19,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:19,235 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:19,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:19,237 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:19,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:19,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:19,241 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:19,242 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:19,319 INFO L321 Elim1Store]: treesize reduction 146, result has 14.1 percent of original size [2022-11-16 15:53:19,320 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 7 disjoint index pairs (out of 45 index pairs), introduced 12 new quantified variables, introduced 45 case distinctions, treesize of input 783 treesize of output 529 [2022-11-16 15:53:19,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:19,353 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:19,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:19,355 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:19,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:19,358 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:19,359 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:19,444 INFO L321 Elim1Store]: treesize reduction 272, result has 11.7 percent of original size [2022-11-16 15:53:19,446 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 7 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 39 case distinctions, treesize of input 785 treesize of output 777 [2022-11-16 15:53:19,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:19,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:19,482 INFO L350 Elim1Store]: Elim1 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 773 treesize of output 752 [2022-11-16 15:53:19,581 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:19,586 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:19,606 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:19,611 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:19,616 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:19,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:19,627 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-16 15:53:19,633 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:19,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:19,642 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-16 15:53:19,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:19,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:19,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:19,660 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 15:53:19,660 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 30 treesize of output 32 [2022-11-16 15:53:19,666 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:19,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:19,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:19,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:19,679 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 15:53:19,680 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 32 treesize of output 34 [2022-11-16 15:53:19,826 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:19,910 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-16 15:53:19,911 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:19,992 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-16 15:53:19,993 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:20,087 INFO L321 Elim1Store]: treesize reduction 30, result has 59.5 percent of original size [2022-11-16 15:53:20,087 INFO L350 Elim1Store]: Elim1 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 169 treesize of output 203 [2022-11-16 15:53:20,301 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:20,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:20,312 INFO L350 Elim1Store]: Elim1 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 12 treesize of output 1 [2022-11-16 15:53:20,325 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:20,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:20,347 INFO L350 Elim1Store]: Elim1 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 12 treesize of output 1 [2022-11-16 15:53:20,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:20,356 INFO L350 Elim1Store]: Elim1 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 12 treesize of output 1 [2022-11-16 15:53:20,432 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-16 15:53:20,432 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 356 treesize of output 353 [2022-11-16 15:53:20,462 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-16 15:53:20,463 INFO L350 Elim1Store]: Elim1 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 352 treesize of output 339 [2022-11-16 15:53:20,488 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-16 15:53:20,489 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 340 treesize of output 337 [2022-11-16 15:53:20,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:20,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:20,821 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:20,828 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 15:53:20,828 INFO L350 Elim1Store]: Elim1 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 3 case distinctions, treesize of input 688 treesize of output 657 [2022-11-16 15:53:20,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:20,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:20,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:20,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:20,851 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:20,859 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 15:53:20,859 INFO L350 Elim1Store]: Elim1 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 3 case distinctions, treesize of input 672 treesize of output 641 [2022-11-16 15:53:20,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:20,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:20,889 INFO L350 Elim1Store]: Elim1 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 655 treesize of output 622 [2022-11-16 15:53:21,026 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 15:53:22,634 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2861#(and (or (not (<= 0 |ULTIMATE.start_main_~list~0#1.offset|)) (not (<= (+ |ULTIMATE.start_main_~list~0#1.offset| 4) (select |#length| |ULTIMATE.start_main_~list~0#1.base|)))) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-16 15:53:22,634 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-16 15:53:22,634 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 15:53:22,635 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 19 [2022-11-16 15:53:22,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654568392] [2022-11-16 15:53:22,635 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 15:53:22,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-16 15:53:22,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:53:22,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-16 15:53:22,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=167, Invalid=1238, Unknown=1, NotChecked=0, Total=1406 [2022-11-16 15:53:22,637 INFO L87 Difference]: Start difference. First operand 64 states and 72 transitions. Second operand has 21 states, 20 states have (on average 2.8) internal successors, (56), 20 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:53:23,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:53:23,281 INFO L93 Difference]: Finished difference Result 98 states and 106 transitions. [2022-11-16 15:53:23,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 15:53:23,282 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 2.8) internal successors, (56), 20 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-11-16 15:53:23,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:53:23,283 INFO L225 Difference]: With dead ends: 98 [2022-11-16 15:53:23,283 INFO L226 Difference]: Without dead ends: 98 [2022-11-16 15:53:23,284 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 591 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=306, Invalid=1855, Unknown=1, NotChecked=0, Total=2162 [2022-11-16 15:53:23,284 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 157 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 196 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 15:53:23,285 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 112 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 264 Invalid, 0 Unknown, 196 Unchecked, 0.3s Time] [2022-11-16 15:53:23,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2022-11-16 15:53:23,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 75. [2022-11-16 15:53:23,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 63 states have (on average 1.4126984126984128) internal successors, (89), 74 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:53:23,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 89 transitions. [2022-11-16 15:53:23,288 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 89 transitions. Word has length 22 [2022-11-16 15:53:23,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:53:23,288 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 89 transitions. [2022-11-16 15:53:23,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 2.8) internal successors, (56), 20 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:53:23,289 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 89 transitions. [2022-11-16 15:53:23,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 15:53:23,289 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:53:23,290 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] [2022-11-16 15:53:23,301 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b401557a-b961-4012-9ec3-2d29f41357c4/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-16 15:53:23,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b401557a-b961-4012-9ec3-2d29f41357c4/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-16 15:53:23,495 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 15:53:23,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:53:23,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1714033067, now seen corresponding path program 1 times [2022-11-16 15:53:23,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:53:23,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757837221] [2022-11-16 15:53:23,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:53:23,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:53:23,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:53:23,861 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 15:53:23,861 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:53:23,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757837221] [2022-11-16 15:53:23,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757837221] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 15:53:23,862 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 15:53:23,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 15:53:23,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344984953] [2022-11-16 15:53:23,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 15:53:23,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 15:53:23,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:53:23,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 15:53:23,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-11-16 15:53:23,863 INFO L87 Difference]: Start difference. First operand 75 states and 89 transitions. Second operand has 9 states, 8 states have (on average 3.0) internal successors, (24), 9 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) [2022-11-16 15:53:24,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:53:24,095 INFO L93 Difference]: Finished difference Result 83 states and 95 transitions. [2022-11-16 15:53:24,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 15:53:24,096 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.0) internal successors, (24), 9 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 [2022-11-16 15:53:24,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:53:24,096 INFO L225 Difference]: With dead ends: 83 [2022-11-16 15:53:24,096 INFO L226 Difference]: Without dead ends: 83 [2022-11-16 15:53:24,097 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2022-11-16 15:53:24,097 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 51 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 15:53:24,097 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 60 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 15:53:24,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2022-11-16 15:53:24,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 75. [2022-11-16 15:53:24,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 63 states have (on average 1.3968253968253967) internal successors, (88), 74 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:53:24,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 88 transitions. [2022-11-16 15:53:24,100 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 88 transitions. Word has length 24 [2022-11-16 15:53:24,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:53:24,100 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 88 transitions. [2022-11-16 15:53:24,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.0) internal successors, (24), 9 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) [2022-11-16 15:53:24,100 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 88 transitions. [2022-11-16 15:53:24,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-16 15:53:24,101 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:53:24,101 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] [2022-11-16 15:53:24,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-16 15:53:24,101 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 15:53:24,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:53:24,102 INFO L85 PathProgramCache]: Analyzing trace with hash 2081668364, now seen corresponding path program 1 times [2022-11-16 15:53:24,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:53:24,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657385779] [2022-11-16 15:53:24,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:53:24,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:53:24,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:53:24,325 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 15:53:24,325 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:53:24,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657385779] [2022-11-16 15:53:24,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657385779] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 15:53:24,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [896320355] [2022-11-16 15:53:24,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:53:24,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 15:53:24,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b401557a-b961-4012-9ec3-2d29f41357c4/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 15:53:24,328 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b401557a-b961-4012-9ec3-2d29f41357c4/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 15:53:24,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b401557a-b961-4012-9ec3-2d29f41357c4/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-16 15:53:24,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:53:24,467 INFO L263 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-16 15:53:24,470 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 15:53:24,475 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:24,501 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-16 15:53:24,502 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1 case distinctions, treesize of input 11 treesize of output 11 [2022-11-16 15:53:24,522 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:24,558 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-16 15:53:24,559 INFO L350 Elim1Store]: Elim1 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 28 [2022-11-16 15:53:24,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:24,593 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 25 [2022-11-16 15:53:24,643 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:24,646 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 15:53:24,646 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 15 [2022-11-16 15:53:24,661 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 15:53:24,661 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 15:53:24,860 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 15:53:24,861 INFO L350 Elim1Store]: Elim1 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 19 treesize of output 20 [2022-11-16 15:53:24,872 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 15:53:24,873 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 33 [2022-11-16 15:53:24,879 INFO L350 Elim1Store]: Elim1 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 20 treesize of output 18 [2022-11-16 15:53:25,031 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 15:53:25,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [896320355] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 15:53:25,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1320256417] [2022-11-16 15:53:25,035 INFO L159 IcfgInterpreter]: Started Sifa with 24 locations of interest [2022-11-16 15:53:25,037 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 15:53:25,037 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 15:53:25,037 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 15:53:25,038 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 15:53:25,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,058 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:25,073 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:25,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,080 INFO L350 Elim1Store]: Elim1 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 30 treesize of output 21 [2022-11-16 15:53:25,087 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:25,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,104 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:25,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,112 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-16 15:53:25,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,120 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-16 15:53:25,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,140 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2022-11-16 15:53:25,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,150 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:25,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,160 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:25,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,196 INFO L350 Elim1Store]: Elim1 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 22 treesize of output 30 [2022-11-16 15:53:25,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,216 INFO L350 Elim1Store]: Elim1 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 30 treesize of output 21 [2022-11-16 15:53:25,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,226 INFO L350 Elim1Store]: Elim1 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 33 treesize of output 38 [2022-11-16 15:53:25,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,237 INFO L350 Elim1Store]: Elim1 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 33 treesize of output 38 [2022-11-16 15:53:25,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,262 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:25,262 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 43 [2022-11-16 15:53:25,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,276 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:25,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,291 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:25,292 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 43 [2022-11-16 15:53:25,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,347 INFO L350 Elim1Store]: Elim1 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 41 treesize of output 48 [2022-11-16 15:53:25,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,379 INFO L350 Elim1Store]: Elim1 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 44 treesize of output 52 [2022-11-16 15:53:25,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,397 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 52 [2022-11-16 15:53:25,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,413 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:25,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,482 INFO L350 Elim1Store]: Elim1 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 40 treesize of output 54 [2022-11-16 15:53:25,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,514 INFO L350 Elim1Store]: Elim1 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 30 treesize of output 21 [2022-11-16 15:53:25,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,531 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 70 [2022-11-16 15:53:25,571 INFO L321 Elim1Store]: treesize reduction 48, result has 23.8 percent of original size [2022-11-16 15:53:25,572 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 256 treesize of output 178 [2022-11-16 15:53:25,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,619 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:25,648 INFO L321 Elim1Store]: treesize reduction 49, result has 12.5 percent of original size [2022-11-16 15:53:25,649 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 5 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 265 treesize of output 190 [2022-11-16 15:53:25,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,687 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 82 [2022-11-16 15:53:25,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,711 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:25,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,812 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 26 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 72 [2022-11-16 15:53:25,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,864 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:25,865 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:25,919 INFO L321 Elim1Store]: treesize reduction 72, result has 17.2 percent of original size [2022-11-16 15:53:25,919 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 8 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 20 case distinctions, treesize of input 327 treesize of output 239 [2022-11-16 15:53:25,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,957 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 12 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 94 [2022-11-16 15:53:25,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,982 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:26,714 INFO L321 Elim1Store]: treesize reduction 448, result has 12.8 percent of original size [2022-11-16 15:53:26,715 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 27 case distinctions, treesize of input 885 treesize of output 889 [2022-11-16 15:53:27,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:27,096 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:27,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:27,099 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:27,533 INFO L321 Elim1Store]: treesize reduction 200, result has 18.4 percent of original size [2022-11-16 15:53:27,534 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 4 disjoint index pairs (out of 66 index pairs), introduced 13 new quantified variables, introduced 70 case distinctions, treesize of input 2028 treesize of output 1253 [2022-11-16 15:53:27,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:27,600 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:27,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:27,602 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:28,238 INFO L321 Elim1Store]: treesize reduction 284, result has 20.4 percent of original size [2022-11-16 15:53:28,239 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 4 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 49 case distinctions, treesize of input 2020 treesize of output 1979 [2022-11-16 15:53:28,326 INFO L321 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2022-11-16 15:53:28,327 INFO L350 Elim1Store]: Elim1 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 2008 treesize of output 1975 [2022-11-16 15:53:37,870 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:37,875 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:37,880 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:37,906 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-16 15:53:37,906 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:37,913 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:37,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:37,926 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:37,932 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:37,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:37,941 INFO L350 Elim1Store]: Elim1 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 23 treesize of output 22 [2022-11-16 15:53:37,968 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:37,975 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:37,984 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:37,989 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:37,996 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:38,008 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:38,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:38,016 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-16 15:53:38,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:38,026 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-16 15:53:38,074 INFO L321 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2022-11-16 15:53:38,075 INFO L350 Elim1Store]: Elim1 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 22 treesize of output 33 [2022-11-16 15:53:38,089 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 15:53:38,089 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 26 treesize of output 29 [2022-11-16 15:53:38,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:38,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:38,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:38,114 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 15:53:38,114 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 30 treesize of output 32 [2022-11-16 15:53:38,122 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:38,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:38,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:38,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:38,137 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 15:53:38,138 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2022-11-16 15:53:38,241 INFO L321 Elim1Store]: treesize reduction 31, result has 32.6 percent of original size [2022-11-16 15:53:38,242 INFO L350 Elim1Store]: Elim1 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 39 treesize of output 43 [2022-11-16 15:53:38,287 INFO L321 Elim1Store]: treesize reduction 36, result has 37.9 percent of original size [2022-11-16 15:53:38,287 INFO L350 Elim1Store]: Elim1 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 23 treesize of output 33 [2022-11-16 15:53:38,407 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 16 treesize of output 13 [2022-11-16 15:53:38,439 INFO L321 Elim1Store]: treesize reduction 14, result has 50.0 percent of original size [2022-11-16 15:53:38,440 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 29 [2022-11-16 15:53:38,530 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 16 treesize of output 13 [2022-11-16 15:53:38,563 INFO L321 Elim1Store]: treesize reduction 14, result has 50.0 percent of original size [2022-11-16 15:53:38,564 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 29 [2022-11-16 15:53:38,701 INFO L321 Elim1Store]: treesize reduction 30, result has 59.5 percent of original size [2022-11-16 15:53:38,701 INFO L350 Elim1Store]: Elim1 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 160 treesize of output 194 [2022-11-16 15:53:38,725 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:38,764 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:38,770 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:38,776 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:38,802 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:38,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:38,812 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-16 15:53:38,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:38,824 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-16 15:53:38,876 INFO L321 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2022-11-16 15:53:38,877 INFO L350 Elim1Store]: Elim1 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 22 treesize of output 33 [2022-11-16 15:53:38,933 INFO L321 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2022-11-16 15:53:38,933 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 96 treesize of output 101 [2022-11-16 15:53:38,986 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 15:53:40,905 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3417#(and (<= 0 |#NULL.base|) (not (= |ULTIMATE.start_main_old_#valid#1| |#valid|)) (<= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~y~0#1.offset|) (<= |ULTIMATE.start_main_~y~0#1.offset| 0) (<= |#NULL.base| 0) (= |ULTIMATE.start_main_~list~0#1.offset| 0) (<= 0 |#NULL.offset|) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~list~0#1.base| 0) (= |ULTIMATE.start_main_#res#1| 0))' at error location [2022-11-16 15:53:40,905 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-16 15:53:40,905 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 15:53:40,906 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 19 [2022-11-16 15:53:40,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149194637] [2022-11-16 15:53:40,906 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 15:53:40,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-16 15:53:40,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:53:40,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-16 15:53:40,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=205, Invalid=1512, Unknown=5, NotChecked=0, Total=1722 [2022-11-16 15:53:40,907 INFO L87 Difference]: Start difference. First operand 75 states and 88 transitions. Second operand has 20 states, 20 states have (on average 2.65) internal successors, (53), 19 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:53:41,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:53:41,476 INFO L93 Difference]: Finished difference Result 96 states and 105 transitions. [2022-11-16 15:53:41,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 15:53:41,476 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.65) internal successors, (53), 19 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-11-16 15:53:41,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:53:41,477 INFO L225 Difference]: With dead ends: 96 [2022-11-16 15:53:41,477 INFO L226 Difference]: Without dead ends: 96 [2022-11-16 15:53:41,478 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 46 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 859 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=389, Invalid=2468, Unknown=5, NotChecked=0, Total=2862 [2022-11-16 15:53:41,479 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 98 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 158 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 15:53:41,480 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 128 Invalid, 443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 261 Invalid, 0 Unknown, 158 Unchecked, 0.2s Time] [2022-11-16 15:53:41,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2022-11-16 15:53:41,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 75. [2022-11-16 15:53:41,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 63 states have (on average 1.380952380952381) internal successors, (87), 74 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:53:41,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 87 transitions. [2022-11-16 15:53:41,484 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 87 transitions. Word has length 26 [2022-11-16 15:53:41,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:53:41,484 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 87 transitions. [2022-11-16 15:53:41,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.65) internal successors, (53), 19 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:53:41,484 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 87 transitions. [2022-11-16 15:53:41,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-16 15:53:41,485 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:53:41,485 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 15:53:41,495 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b401557a-b961-4012-9ec3-2d29f41357c4/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-11-16 15:53:41,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b401557a-b961-4012-9ec3-2d29f41357c4/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 15:53:41,691 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 15:53:41,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:53:41,691 INFO L85 PathProgramCache]: Analyzing trace with hash 2081666968, now seen corresponding path program 1 times [2022-11-16 15:53:41,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:53:41,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106100330] [2022-11-16 15:53:41,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:53:41,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:53:41,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:53:42,368 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 15:53:42,368 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:53:42,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106100330] [2022-11-16 15:53:42,369 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106100330] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 15:53:42,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [609933859] [2022-11-16 15:53:42,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:53:42,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 15:53:42,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b401557a-b961-4012-9ec3-2d29f41357c4/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 15:53:42,371 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b401557a-b961-4012-9ec3-2d29f41357c4/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 15:53:42,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b401557a-b961-4012-9ec3-2d29f41357c4/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-16 15:53:42,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:53:42,512 INFO L263 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 40 conjunts are in the unsatisfiable core [2022-11-16 15:53:42,514 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 15:53:42,517 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:42,543 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-16 15:53:42,544 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:42,551 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:42,568 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-16 15:53:42,569 INFO L350 Elim1Store]: Elim1 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 29 [2022-11-16 15:53:42,593 INFO L321 Elim1Store]: treesize reduction 30, result has 37.5 percent of original size [2022-11-16 15:53:42,594 INFO L350 Elim1Store]: Elim1 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 29 [2022-11-16 15:53:42,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:42,609 INFO L350 Elim1Store]: Elim1 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 30 [2022-11-16 15:53:42,782 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:42,803 INFO L321 Elim1Store]: treesize reduction 10, result has 68.8 percent of original size [2022-11-16 15:53:42,803 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 46 treesize of output 41 [2022-11-16 15:53:42,898 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-16 15:53:42,899 INFO L350 Elim1Store]: Elim1 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 12 treesize of output 18 [2022-11-16 15:53:42,956 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:42,961 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 15:53:42,961 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 15:53:43,626 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 15:53:43,627 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 229 treesize of output 293 [2022-11-16 15:53:44,666 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_main_~y~0#1.offset| 8))) (and (forall ((v_prenex_5 Int)) (or (forall ((v_prenex_7 Int) (v_prenex_6 (Array Int Int))) (let ((.cse1 (select (store (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~list~0#1.base| v_prenex_6) |c_ULTIMATE.start_main_~y~0#1.base|) .cse0 v_prenex_5) v_prenex_7))) (or (forall ((|v_ULTIMATE.start_main_#t~malloc8#1.base_18| Int) (v_ArrVal_944 (Array Int Int)) (|v_ULTIMATE.start_main_~list~0#1.offset_77| Int)) (or (not (= |c_ULTIMATE.start_main_~y~0#1.base| (select (store (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~list~0#1.base| v_ArrVal_944) |c_ULTIMATE.start_main_~y~0#1.base|) .cse0 |v_ULTIMATE.start_main_#t~malloc8#1.base_18|) |v_ULTIMATE.start_main_~list~0#1.offset_77|))) (= .cse1 |v_ULTIMATE.start_main_#t~malloc8#1.base_18|) (= |c_ULTIMATE.start_main_~list~0#1.base| |v_ULTIMATE.start_main_#t~malloc8#1.base_18|) (not (<= 0 |v_ULTIMATE.start_main_~list~0#1.offset_77|)) (not (<= |v_ULTIMATE.start_main_~list~0#1.offset_77| |c_ULTIMATE.start_main_~y~0#1.offset|)))) (= .cse1 v_prenex_5)))) (= |c_ULTIMATE.start_main_~list~0#1.base| v_prenex_5))) (forall ((v_prenex_5 Int)) (or (forall ((v_prenex_7 Int) (v_prenex_6 (Array Int Int))) (or (not (<= v_prenex_7 |c_ULTIMATE.start_main_~y~0#1.offset|)) (not (<= 0 v_prenex_7)) (= (select (store (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~list~0#1.base| v_prenex_6) |c_ULTIMATE.start_main_~y~0#1.base|) .cse0 v_prenex_5) v_prenex_7) |c_ULTIMATE.start_main_~list~0#1.base|))) (= |c_ULTIMATE.start_main_~list~0#1.base| v_prenex_5))) (forall ((v_prenex_5 Int)) (or (forall ((v_prenex_7 Int)) (or (forall ((v_prenex_6 (Array Int Int))) (let ((.cse2 (store (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~list~0#1.base| v_prenex_6) |c_ULTIMATE.start_main_~y~0#1.base|) .cse0 v_prenex_5))) (let ((.cse3 (select .cse2 v_prenex_7))) (or (not (= (select .cse2 8) .cse3)) (= .cse3 v_prenex_5))))) (not (<= v_prenex_7 |c_ULTIMATE.start_main_~y~0#1.offset|)) (not (<= 0 v_prenex_7)))) (= |c_ULTIMATE.start_main_~list~0#1.base| v_prenex_5))) (or (forall ((v_prenex_7 Int) (v_prenex_5 Int) (v_prenex_6 (Array Int Int))) (or (= (select (store (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~list~0#1.base| v_prenex_6) |c_ULTIMATE.start_main_~y~0#1.base|) .cse0 v_prenex_5) v_prenex_7) |c_ULTIMATE.start_main_~list~0#1.base|) (= |c_ULTIMATE.start_main_~list~0#1.base| v_prenex_5))) (forall ((|v_ULTIMATE.start_main_#t~malloc8#1.base_18| Int) (v_ArrVal_944 (Array Int Int)) (|v_ULTIMATE.start_main_~list~0#1.offset_77| Int)) (or (not (= |c_ULTIMATE.start_main_~y~0#1.base| (select (store (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~list~0#1.base| v_ArrVal_944) |c_ULTIMATE.start_main_~y~0#1.base|) .cse0 |v_ULTIMATE.start_main_#t~malloc8#1.base_18|) |v_ULTIMATE.start_main_~list~0#1.offset_77|))) (= |c_ULTIMATE.start_main_~list~0#1.base| |v_ULTIMATE.start_main_#t~malloc8#1.base_18|) (not (<= 0 |v_ULTIMATE.start_main_~list~0#1.offset_77|)) (not (<= |v_ULTIMATE.start_main_~list~0#1.offset_77| |c_ULTIMATE.start_main_~y~0#1.offset|))))) (forall ((|v_ULTIMATE.start_main_#t~malloc8#1.base_18| Int) (v_prenex_7 Int) (v_ArrVal_944 (Array Int Int)) (v_prenex_5 Int) (|v_ULTIMATE.start_main_~list~0#1.offset_77| Int) (v_prenex_6 (Array Int Int))) (let ((.cse4 (select (store (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~list~0#1.base| v_prenex_6) |c_ULTIMATE.start_main_~y~0#1.base|) .cse0 v_prenex_5) v_prenex_7))) (or (not (= |c_ULTIMATE.start_main_~y~0#1.base| (select (store (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~list~0#1.base| v_ArrVal_944) |c_ULTIMATE.start_main_~y~0#1.base|) .cse0 |v_ULTIMATE.start_main_#t~malloc8#1.base_18|) |v_ULTIMATE.start_main_~list~0#1.offset_77|))) (= |v_ULTIMATE.start_main_#t~malloc8#1.base_18| v_prenex_5) (= |c_ULTIMATE.start_main_~list~0#1.base| |v_ULTIMATE.start_main_#t~malloc8#1.base_18|) (= .cse4 |c_ULTIMATE.start_main_~list~0#1.base|) (not (<= 0 |v_ULTIMATE.start_main_~list~0#1.offset_77|)) (= .cse4 v_prenex_5) (not (<= |v_ULTIMATE.start_main_~list~0#1.offset_77| |c_ULTIMATE.start_main_~y~0#1.offset|))))) (forall ((|v_ULTIMATE.start_main_#t~malloc8#1.base_18| Int) (v_prenex_7 Int) (v_ArrVal_944 (Array Int Int)) (v_prenex_5 Int) (|v_ULTIMATE.start_main_~list~0#1.offset_77| Int) (v_prenex_6 (Array Int Int))) (or (not (= |c_ULTIMATE.start_main_~y~0#1.base| (select (store (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~list~0#1.base| v_ArrVal_944) |c_ULTIMATE.start_main_~y~0#1.base|) .cse0 |v_ULTIMATE.start_main_#t~malloc8#1.base_18|) |v_ULTIMATE.start_main_~list~0#1.offset_77|))) (= |v_ULTIMATE.start_main_#t~malloc8#1.base_18| v_prenex_5) (= (select (store (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~list~0#1.base| v_prenex_6) |c_ULTIMATE.start_main_~y~0#1.base|) .cse0 v_prenex_5) v_prenex_7) |v_ULTIMATE.start_main_#t~malloc8#1.base_18|) (= |c_ULTIMATE.start_main_~list~0#1.base| |v_ULTIMATE.start_main_#t~malloc8#1.base_18|) (not (<= 0 |v_ULTIMATE.start_main_~list~0#1.offset_77|)) (not (<= |v_ULTIMATE.start_main_~list~0#1.offset_77| |c_ULTIMATE.start_main_~y~0#1.offset|)))) (forall ((v_prenex_5 Int)) (or (forall ((|v_ULTIMATE.start_main_#t~malloc8#1.base_18| Int) (v_ArrVal_944 (Array Int Int)) (|v_ULTIMATE.start_main_~list~0#1.offset_77| Int)) (or (not (= |c_ULTIMATE.start_main_~y~0#1.base| (select (store (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~list~0#1.base| v_ArrVal_944) |c_ULTIMATE.start_main_~y~0#1.base|) .cse0 |v_ULTIMATE.start_main_#t~malloc8#1.base_18|) |v_ULTIMATE.start_main_~list~0#1.offset_77|))) (= |v_ULTIMATE.start_main_#t~malloc8#1.base_18| v_prenex_5) (= |c_ULTIMATE.start_main_~list~0#1.base| |v_ULTIMATE.start_main_#t~malloc8#1.base_18|) (not (<= 0 |v_ULTIMATE.start_main_~list~0#1.offset_77|)) (not (<= |v_ULTIMATE.start_main_~list~0#1.offset_77| |c_ULTIMATE.start_main_~y~0#1.offset|)))) (= |c_ULTIMATE.start_main_~list~0#1.base| v_prenex_5) (forall ((v_prenex_7 Int) (v_prenex_6 (Array Int Int))) (= (select (store (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~list~0#1.base| v_prenex_6) |c_ULTIMATE.start_main_~y~0#1.base|) .cse0 v_prenex_5) v_prenex_7) |c_ULTIMATE.start_main_~list~0#1.base|)))) (forall ((v_prenex_5 Int)) (or (forall ((v_prenex_7 Int) (v_prenex_6 (Array Int Int))) (let ((.cse5 (select (store (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~list~0#1.base| v_prenex_6) |c_ULTIMATE.start_main_~y~0#1.base|) .cse0 v_prenex_5) v_prenex_7))) (or (forall ((|v_ULTIMATE.start_main_#t~malloc8#1.base_18| Int) (v_ArrVal_944 (Array Int Int)) (|v_ULTIMATE.start_main_~list~0#1.offset_77| Int)) (or (not (= |c_ULTIMATE.start_main_~y~0#1.base| (select (store (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~list~0#1.base| v_ArrVal_944) |c_ULTIMATE.start_main_~y~0#1.base|) .cse0 |v_ULTIMATE.start_main_#t~malloc8#1.base_18|) |v_ULTIMATE.start_main_~list~0#1.offset_77|))) (= .cse5 |v_ULTIMATE.start_main_#t~malloc8#1.base_18|) (= |c_ULTIMATE.start_main_~list~0#1.base| |v_ULTIMATE.start_main_#t~malloc8#1.base_18|) (not (<= 0 |v_ULTIMATE.start_main_~list~0#1.offset_77|)) (not (<= |v_ULTIMATE.start_main_~list~0#1.offset_77| |c_ULTIMATE.start_main_~y~0#1.offset|)))) (= .cse5 |c_ULTIMATE.start_main_~list~0#1.base|)))) (= |c_ULTIMATE.start_main_~list~0#1.base| v_prenex_5))) (forall ((v_prenex_5 Int)) (or (forall ((|v_ULTIMATE.start_main_#t~malloc8#1.base_18| Int) (v_prenex_7 Int) (v_prenex_6 (Array Int Int))) (or (= |v_ULTIMATE.start_main_#t~malloc8#1.base_18| v_prenex_5) (= (select (store (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~list~0#1.base| v_prenex_6) |c_ULTIMATE.start_main_~y~0#1.base|) .cse0 v_prenex_5) v_prenex_7) |v_ULTIMATE.start_main_#t~malloc8#1.base_18|) (= |c_ULTIMATE.start_main_~list~0#1.base| |v_ULTIMATE.start_main_#t~malloc8#1.base_18|) (forall ((v_ArrVal_944 (Array Int Int)) (|v_ULTIMATE.start_main_~list~0#1.offset_77| Int)) (or (not (= |c_ULTIMATE.start_main_~y~0#1.base| (select (store (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~list~0#1.base| v_ArrVal_944) |c_ULTIMATE.start_main_~y~0#1.base|) .cse0 |v_ULTIMATE.start_main_#t~malloc8#1.base_18|) |v_ULTIMATE.start_main_~list~0#1.offset_77|))) (not (<= 0 |v_ULTIMATE.start_main_~list~0#1.offset_77|)) (not (<= |v_ULTIMATE.start_main_~list~0#1.offset_77| |c_ULTIMATE.start_main_~y~0#1.offset|)))))) (= |c_ULTIMATE.start_main_~list~0#1.base| v_prenex_5))) (forall ((v_prenex_5 Int)) (or (forall ((v_prenex_7 Int) (v_prenex_6 (Array Int Int))) (let ((.cse6 (select (store (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~list~0#1.base| v_prenex_6) |c_ULTIMATE.start_main_~y~0#1.base|) .cse0 v_prenex_5) v_prenex_7))) (or (forall ((|v_ULTIMATE.start_main_#t~malloc8#1.base_18| Int)) (or (= |v_ULTIMATE.start_main_#t~malloc8#1.base_18| v_prenex_5) (= .cse6 |v_ULTIMATE.start_main_#t~malloc8#1.base_18|) (= |c_ULTIMATE.start_main_~list~0#1.base| |v_ULTIMATE.start_main_#t~malloc8#1.base_18|) (forall ((v_ArrVal_944 (Array Int Int)) (|v_ULTIMATE.start_main_~list~0#1.offset_77| Int)) (or (not (= |c_ULTIMATE.start_main_~y~0#1.base| (select (store (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~list~0#1.base| v_ArrVal_944) |c_ULTIMATE.start_main_~y~0#1.base|) .cse0 |v_ULTIMATE.start_main_#t~malloc8#1.base_18|) |v_ULTIMATE.start_main_~list~0#1.offset_77|))) (not (<= 0 |v_ULTIMATE.start_main_~list~0#1.offset_77|)) (not (<= |v_ULTIMATE.start_main_~list~0#1.offset_77| |c_ULTIMATE.start_main_~y~0#1.offset|)))))) (= .cse6 |c_ULTIMATE.start_main_~list~0#1.base|)))) (= |c_ULTIMATE.start_main_~list~0#1.base| v_prenex_5))) (forall ((v_prenex_5 Int)) (or (forall ((v_prenex_7 Int)) (or (forall ((v_prenex_6 (Array Int Int))) (let ((.cse7 (select (store (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~list~0#1.base| v_prenex_6) |c_ULTIMATE.start_main_~y~0#1.base|) .cse0 v_prenex_5) v_prenex_7))) (or (= .cse7 |c_ULTIMATE.start_main_~list~0#1.base|) (= .cse7 v_prenex_5)))) (not (<= v_prenex_7 |c_ULTIMATE.start_main_~y~0#1.offset|)) (not (<= 0 v_prenex_7)))) (= |c_ULTIMATE.start_main_~list~0#1.base| v_prenex_5))))) is different from false [2022-11-16 15:53:44,865 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 15:53:44,866 INFO L350 Elim1Store]: Elim1 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 55 [2022-11-16 15:53:44,872 INFO L350 Elim1Store]: Elim1 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 105 treesize of output 97 [2022-11-16 15:53:44,877 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:44,880 INFO L350 Elim1Store]: Elim1 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 27 treesize of output 25 [2022-11-16 15:53:44,886 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:44,905 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 15:53:44,906 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 77 treesize of output 93 [2022-11-16 15:53:44,922 INFO L350 Elim1Store]: Elim1 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 49 treesize of output 45 [2022-11-16 15:53:45,059 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 15:53:45,060 INFO L350 Elim1Store]: Elim1 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 1 [2022-11-16 15:53:45,066 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 15:53:45,066 INFO L350 Elim1Store]: Elim1 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 68 treesize of output 1 [2022-11-16 15:53:45,074 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 15:53:45,075 INFO L350 Elim1Store]: Elim1 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 1 [2022-11-16 15:53:45,083 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 15:53:45,083 INFO L350 Elim1Store]: Elim1 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 1 [2022-11-16 15:53:45,090 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 15:53:45,090 INFO L350 Elim1Store]: Elim1 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 1 [2022-11-16 15:53:45,098 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 15:53:45,099 INFO L350 Elim1Store]: Elim1 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 1 [2022-11-16 15:53:45,119 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 15:53:45,119 INFO L350 Elim1Store]: Elim1 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 1 [2022-11-16 15:53:45,128 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 15:53:45,128 INFO L350 Elim1Store]: Elim1 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 1 [2022-11-16 15:53:45,137 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 15:53:45,138 INFO L350 Elim1Store]: Elim1 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 1 [2022-11-16 15:53:45,147 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 15:53:45,147 INFO L350 Elim1Store]: Elim1 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 1 [2022-11-16 15:53:45,222 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 15:53:45,222 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [609933859] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 15:53:45,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [882399524] [2022-11-16 15:53:45,224 INFO L159 IcfgInterpreter]: Started Sifa with 23 locations of interest [2022-11-16 15:53:45,224 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 15:53:45,225 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 15:53:45,225 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 15:53:45,225 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 15:53:45,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:45,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:45,249 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:45,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:45,267 INFO L350 Elim1Store]: Elim1 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 30 treesize of output 21 [2022-11-16 15:53:45,275 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:45,281 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:45,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:45,296 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-16 15:53:45,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:45,305 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-16 15:53:45,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:45,314 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:45,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:45,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:45,347 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2022-11-16 15:53:45,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:45,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:45,359 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:45,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:45,369 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:45,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:45,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:45,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:45,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:45,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:45,403 INFO L350 Elim1Store]: Elim1 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 22 treesize of output 30 [2022-11-16 15:53:45,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:45,423 INFO L350 Elim1Store]: Elim1 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 33 treesize of output 38 [2022-11-16 15:53:45,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:45,434 INFO L350 Elim1Store]: Elim1 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 33 treesize of output 38 [2022-11-16 15:53:45,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:45,448 INFO L350 Elim1Store]: Elim1 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 30 treesize of output 21 [2022-11-16 15:53:45,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:45,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:45,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:45,473 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:45,474 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 43 [2022-11-16 15:53:45,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:45,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:45,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:45,489 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:45,489 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 43 [2022-11-16 15:53:45,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:45,502 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:45,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:45,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:45,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:45,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:45,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:45,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:45,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:45,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:45,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:45,542 INFO L350 Elim1Store]: Elim1 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 41 treesize of output 48 [2022-11-16 15:53:45,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:45,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:45,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:45,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:45,571 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 52 [2022-11-16 15:53:45,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:45,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:45,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:45,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:45,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:45,600 INFO L350 Elim1Store]: Elim1 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 44 treesize of output 52 [2022-11-16 15:53:45,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:45,617 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:45,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:45,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:45,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:45,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:45,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:45,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:45,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:45,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:45,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:45,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:45,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:45,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:45,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:45,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:45,689 INFO L350 Elim1Store]: Elim1 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 49 treesize of output 61 [2022-11-16 15:53:45,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:45,722 INFO L350 Elim1Store]: Elim1 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 30 treesize of output 21 [2022-11-16 15:53:45,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:45,736 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:45,763 INFO L321 Elim1Store]: treesize reduction 48, result has 23.8 percent of original size [2022-11-16 15:53:45,763 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 270 treesize of output 180 [2022-11-16 15:53:45,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:45,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:45,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:45,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:45,790 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 72 [2022-11-16 15:53:45,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:45,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:45,834 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:45,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:45,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:45,837 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:45,865 INFO L321 Elim1Store]: treesize reduction 49, result has 12.5 percent of original size [2022-11-16 15:53:45,865 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 279 treesize of output 192 [2022-11-16 15:53:45,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:45,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:45,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:45,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:45,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:45,893 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 84 [2022-11-16 15:53:45,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:45,923 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:45,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:45,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:45,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:45,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:45,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:45,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:45,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:45,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:45,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:45,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:45,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:45,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:45,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:45,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:45,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:45,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:45,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:45,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:46,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:46,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:46,004 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 26 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 74 [2022-11-16 15:53:46,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:46,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:46,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:46,049 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:46,050 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:46,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:46,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:46,054 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:46,100 INFO L321 Elim1Store]: treesize reduction 74, result has 18.7 percent of original size [2022-11-16 15:53:46,101 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 8 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 20 case distinctions, treesize of input 345 treesize of output 241 [2022-11-16 15:53:46,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:46,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:46,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:46,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:46,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:46,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:46,142 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 13 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 96 [2022-11-16 15:53:46,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:46,172 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:46,698 INFO L321 Elim1Store]: treesize reduction 492, result has 11.2 percent of original size [2022-11-16 15:53:46,698 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 27 case distinctions, treesize of input 966 treesize of output 962 [2022-11-16 15:53:46,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:46,807 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:46,808 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:46,903 INFO L321 Elim1Store]: treesize reduction 104, result has 17.5 percent of original size [2022-11-16 15:53:46,904 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 4 disjoint index pairs (out of 28 index pairs), introduced 10 new quantified variables, introduced 31 case distinctions, treesize of input 1107 treesize of output 639 [2022-11-16 15:53:46,973 INFO L321 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2022-11-16 15:53:46,973 INFO L350 Elim1Store]: Elim1 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 1111 treesize of output 1094 [2022-11-16 15:53:46,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:46,996 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:46,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:46,998 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:47,090 INFO L321 Elim1Store]: treesize reduction 200, result has 14.5 percent of original size [2022-11-16 15:53:47,090 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 5 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 24 case distinctions, treesize of input 1107 treesize of output 1093 [2022-11-16 15:53:47,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:47,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:47,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:47,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:47,200 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:47,201 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:47,203 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:47,262 INFO L321 Elim1Store]: treesize reduction 112, result has 11.8 percent of original size [2022-11-16 15:53:47,263 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 4 disjoint index pairs (out of 36 index pairs), introduced 11 new quantified variables, introduced 37 case distinctions, treesize of input 1116 treesize of output 651 [2022-11-16 15:53:47,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:47,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:47,293 INFO L350 Elim1Store]: Elim1 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 1115 treesize of output 1094 [2022-11-16 15:53:47,315 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:47,316 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:47,317 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:47,431 INFO L321 Elim1Store]: treesize reduction 220, result has 10.9 percent of original size [2022-11-16 15:53:47,432 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 6 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 31 case distinctions, treesize of input 1116 treesize of output 1105 [2022-11-16 15:53:47,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:47,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:48,065 INFO L321 Elim1Store]: treesize reduction 560, result has 9.2 percent of original size [2022-11-16 15:53:48,066 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 5 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 33 case distinctions, treesize of input 1121 treesize of output 1116 [2022-11-16 15:53:48,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:48,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:48,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:48,218 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:48,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:48,220 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:48,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:48,223 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:48,224 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:48,350 INFO L321 Elim1Store]: treesize reduction 146, result has 14.1 percent of original size [2022-11-16 15:53:48,351 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 8 disjoint index pairs (out of 45 index pairs), introduced 12 new quantified variables, introduced 45 case distinctions, treesize of input 1283 treesize of output 749 [2022-11-16 15:53:48,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:48,392 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:48,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:48,394 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:48,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:48,399 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:48,400 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:48,520 INFO L321 Elim1Store]: treesize reduction 266, result has 11.9 percent of original size [2022-11-16 15:53:48,521 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 7 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 39 case distinctions, treesize of input 1307 treesize of output 1299 [2022-11-16 15:53:48,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:48,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:48,553 INFO L350 Elim1Store]: Elim1 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 1297 treesize of output 1276 [2022-11-16 15:53:48,662 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:48,667 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:48,674 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:48,680 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:48,685 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:48,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:48,696 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-16 15:53:48,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:48,708 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-16 15:53:48,715 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:48,757 INFO L321 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2022-11-16 15:53:48,758 INFO L350 Elim1Store]: Elim1 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 22 treesize of output 33 [2022-11-16 15:53:48,774 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 15:53:48,774 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 26 treesize of output 29 [2022-11-16 15:53:48,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:48,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:48,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:48,797 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 15:53:48,797 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2022-11-16 15:53:48,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:48,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:48,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:48,814 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 15:53:48,814 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 30 treesize of output 32 [2022-11-16 15:53:48,824 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:48,973 INFO L321 Elim1Store]: treesize reduction 31, result has 32.6 percent of original size [2022-11-16 15:53:48,974 INFO L350 Elim1Store]: Elim1 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 39 treesize of output 43 [2022-11-16 15:53:49,035 INFO L321 Elim1Store]: treesize reduction 36, result has 37.9 percent of original size [2022-11-16 15:53:49,035 INFO L350 Elim1Store]: Elim1 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 23 treesize of output 33 [2022-11-16 15:53:49,137 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 16 treesize of output 13 [2022-11-16 15:53:49,170 INFO L321 Elim1Store]: treesize reduction 14, result has 50.0 percent of original size [2022-11-16 15:53:49,170 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 29 [2022-11-16 15:53:49,247 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 16 treesize of output 13 [2022-11-16 15:53:49,277 INFO L321 Elim1Store]: treesize reduction 14, result has 50.0 percent of original size [2022-11-16 15:53:49,278 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 29 [2022-11-16 15:53:49,406 INFO L321 Elim1Store]: treesize reduction 30, result has 59.5 percent of original size [2022-11-16 15:53:49,406 INFO L350 Elim1Store]: Elim1 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 169 treesize of output 203 [2022-11-16 15:53:49,625 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:49,639 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:49,652 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:53:49,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:49,665 INFO L350 Elim1Store]: Elim1 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 12 treesize of output 1 [2022-11-16 15:53:49,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:49,686 INFO L350 Elim1Store]: Elim1 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 12 treesize of output 1 [2022-11-16 15:53:49,754 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-16 15:53:49,755 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 388 treesize of output 385 [2022-11-16 15:53:49,783 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-16 15:53:49,783 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 380 treesize of output 377 [2022-11-16 15:53:49,815 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-16 15:53:49,815 INFO L350 Elim1Store]: Elim1 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 376 treesize of output 363 [2022-11-16 15:53:50,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:50,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:50,244 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:50,251 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 15:53:50,251 INFO L350 Elim1Store]: Elim1 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 3 case distinctions, treesize of input 924 treesize of output 885 [2022-11-16 15:53:50,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:50,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:50,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:50,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:50,290 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:50,297 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 15:53:50,297 INFO L350 Elim1Store]: Elim1 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 3 case distinctions, treesize of input 904 treesize of output 869 [2022-11-16 15:53:50,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:50,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:50,332 INFO L350 Elim1Store]: Elim1 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 883 treesize of output 838 [2022-11-16 15:53:50,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:50,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:50,600 INFO L321 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2022-11-16 15:53:50,601 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 859 treesize of output 808 [2022-11-16 15:53:51,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:51,072 INFO L321 Elim1Store]: treesize reduction 26, result has 27.8 percent of original size [2022-11-16 15:53:51,072 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 22 treesize of output 29 [2022-11-16 15:53:51,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:51,108 INFO L321 Elim1Store]: treesize reduction 26, result has 27.8 percent of original size [2022-11-16 15:53:51,109 INFO L350 Elim1Store]: Elim1 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 3 case distinctions, treesize of input 22 treesize of output 29 [2022-11-16 15:53:51,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:51,162 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 17 [2022-11-16 15:53:51,183 WARN L193 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:53:51,210 INFO L350 Elim1Store]: Elim1 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 17 [2022-11-16 15:53:51,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:51,240 INFO L350 Elim1Store]: Elim1 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 17 [2022-11-16 15:53:51,271 WARN L193 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:53:51,284 WARN L193 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:53:51,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:51,318 INFO L350 Elim1Store]: Elim1 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 17 [2022-11-16 15:53:51,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:51,385 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-16 15:53:51,386 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 1 [2022-11-16 15:53:51,414 WARN L193 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:53:51,437 WARN L193 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:53:51,506 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 15:53:54,284 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3819#(and (not (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1)) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-16 15:53:54,284 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-16 15:53:54,284 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 15:53:54,284 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13, 14] total 32 [2022-11-16 15:53:54,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002142607] [2022-11-16 15:53:54,285 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 15:53:54,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-16 15:53:54,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:53:54,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-16 15:53:54,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=336, Invalid=2637, Unknown=1, NotChecked=106, Total=3080 [2022-11-16 15:53:54,287 INFO L87 Difference]: Start difference. First operand 75 states and 87 transitions. Second operand has 34 states, 33 states have (on average 1.9393939393939394) internal successors, (64), 33 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:54:03,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:54:03,111 INFO L93 Difference]: Finished difference Result 77 states and 87 transitions. [2022-11-16 15:54:03,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-16 15:54:03,111 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 1.9393939393939394) internal successors, (64), 33 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-11-16 15:54:03,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:54:03,112 INFO L225 Difference]: With dead ends: 77 [2022-11-16 15:54:03,112 INFO L226 Difference]: Without dead ends: 77 [2022-11-16 15:54:03,113 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 36 SyntacticMatches, 2 SemanticMatches, 65 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1681 ImplicationChecksByTransitivity, 12.1s TimeCoverageRelationStatistics Valid=530, Invalid=3763, Unknown=1, NotChecked=128, Total=4422 [2022-11-16 15:54:03,114 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 82 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 217 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 15:54:03,114 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 180 Invalid, 574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 317 Invalid, 0 Unknown, 217 Unchecked, 0.3s Time] [2022-11-16 15:54:03,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2022-11-16 15:54:03,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 69. [2022-11-16 15:54:03,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 57 states have (on average 1.3859649122807018) internal successors, (79), 68 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) [2022-11-16 15:54:03,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 79 transitions. [2022-11-16 15:54:03,117 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 79 transitions. Word has length 26 [2022-11-16 15:54:03,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:54:03,117 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 79 transitions. [2022-11-16 15:54:03,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 1.9393939393939394) internal successors, (64), 33 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:54:03,117 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 79 transitions. [2022-11-16 15:54:03,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-16 15:54:03,118 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:54:03,118 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 15:54:03,124 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b401557a-b961-4012-9ec3-2d29f41357c4/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-16 15:54:03,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b401557a-b961-4012-9ec3-2d29f41357c4/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 15:54:03,319 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 15:54:03,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:54:03,319 INFO L85 PathProgramCache]: Analyzing trace with hash -1221816285, now seen corresponding path program 1 times [2022-11-16 15:54:03,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:54:03,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567804451] [2022-11-16 15:54:03,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:54:03,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:54:03,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:54:04,333 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 15:54:04,334 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:54:04,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567804451] [2022-11-16 15:54:04,334 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567804451] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 15:54:04,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1811165965] [2022-11-16 15:54:04,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:54:04,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 15:54:04,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b401557a-b961-4012-9ec3-2d29f41357c4/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 15:54:04,336 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b401557a-b961-4012-9ec3-2d29f41357c4/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 15:54:04,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b401557a-b961-4012-9ec3-2d29f41357c4/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-16 15:54:04,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:54:04,503 INFO L263 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 60 conjunts are in the unsatisfiable core [2022-11-16 15:54:04,506 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 15:54:04,512 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:54:04,529 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:54:04,536 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:54:04,562 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-16 15:54:04,562 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:54:04,617 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:54:04,626 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:54:04,688 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 15:54:04,689 INFO L350 Elim1Store]: Elim1 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 50 [2022-11-16 15:54:04,694 INFO L350 Elim1Store]: Elim1 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 38 treesize of output 36 [2022-11-16 15:54:04,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:54:04,781 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:54:04,793 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-16 15:54:04,794 INFO L350 Elim1Store]: Elim1 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 59 treesize of output 48 [2022-11-16 15:54:04,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:54:04,806 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 48 [2022-11-16 15:54:05,436 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:54:05,437 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:54:05,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:54:05,447 INFO L321 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-11-16 15:54:05,447 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 62 treesize of output 34 [2022-11-16 15:54:05,568 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 15:54:05,568 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 15:54:27,448 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:54:27,591 INFO L321 Elim1Store]: treesize reduction 22, result has 62.1 percent of original size [2022-11-16 15:54:27,592 INFO L350 Elim1Store]: Elim1 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 1 new quantified variables, introduced 3 case distinctions, treesize of input 722 treesize of output 625 [2022-11-16 15:54:27,884 INFO L321 Elim1Store]: treesize reduction 239, result has 21.4 percent of original size [2022-11-16 15:54:27,885 INFO L350 Elim1Store]: Elim1 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 3 new quantified variables, introduced 4 case distinctions, treesize of input 489520 treesize of output 108971 [2022-11-16 15:54:30,469 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-16 15:54:30,471 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 97782 treesize of output 90616 [2022-11-16 15:54:30,966 INFO L321 Elim1Store]: treesize reduction 17, result has 51.4 percent of original size [2022-11-16 15:54:30,967 INFO L350 Elim1Store]: Elim1 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 3 new quantified variables, introduced 3 case distinctions, treesize of input 90644 treesize of output 81718 [2022-11-16 15:54:31,409 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:54:31,417 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:54:31,418 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:54:31,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:54:31,424 INFO L350 Elim1Store]: Elim1 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 70918 treesize of output 63746 [2022-11-16 15:54:32,019 INFO L350 Elim1Store]: Elim1 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 13 treesize of output 4